57050181 Particle Counter

Cat. No. 57050-18

2200 PCX Particle Counter INSTRUMENT MANUAL

, continued

2

57050-18

2200 PCX Particle Counter INSTRUMENT MANUAL

© Hach Company, 2000. All rights reserved. Printed in the U.S.A.

dd/dp 1/00 1 ed

Trademarks of Hach Company AccuGrow®

H2O University™

Pond In Pillow™

AccuVac®

H2OU™

PourRite™

AccuVer™

Hach Logo®

PrepTab™

AccuVial™

Hach One®

ProNetic™

Add-A-Test™

Hach Oval®

Pump Colorimeter™

AgriTrak™

Hach.com™

QuanTab®

AluVer®

HachLink™

Rapid Liquid™

AmVer™

Hawkeye The Hach Guy™

RapidSilver™

APA 6000™

HexaVer®

Ratio™

AquaChek™

HgEx™

RoVer®

AquaTrend®

HydraVer®

sension™

BariVer®

ICE-PIC™

BODTrak™

IncuTrol®

BoroTrace™

Just Add Water™

BoroVer®

LeadTrak®

C. Moore Green™

m-ColiBlue24®

CA 610™

ManVer®

CalVer®

MolyVer®

ChromaVer®

Mug-O-Meter®

ColorQuik®

NetSketcher™

CoolTrak®

NitraVer®

CuVer®

NitriVer®

CyaniVer®

NTrak®

Digesdahl®

OASIS™

DithiVer®

On Site Analysis. Results You Can TrustSM

TenSette®

OptiQuant™

Test ‘N Tube™

OriFlow™

TestYES!SM

OxyVer™

TitraStir®

PathoScreen™

TitraVer®

PbEx®

ToxTrak™

PermaChem®

UniVer®

PhosVer®

VIScreen™

Pocket Colorimeter™

Voluette®

Pocket Pal™

WasteAway™

Pocket Turbidimeter™

ZincoVer®

Dr. F. Fluent™ Dr. H. Tueau™ DR/Check™ EC 310™ FerroMo® FerroVer® FerroZine® FilterTrak™ 660 Formula 2533™ Formula 2589™

Simply AccurateSM SINGLET™ SofChek™ SoilSYS™ SP 510™ Spec√™ StablCal® StannaVer® SteriChek™ StillVer® SulfaVer® Surface Scatter® TanniVer®

Gelex®

Page 2 Trademarks of Hach Company

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Table of Contents Trademarks of Hach Company ................................................................................................................ 2 Safety Precautions................................................................................................................................... 4 General Specifications ............................................................................................................................. 5 OPERATION............................................................................................................................................. 7 Section 1 General Description.............................................................................................................. 9 1.1 Interpreting the Front Panel ............................................................................................................. 10 INSTALLATION ...................................................................................................................................... 13 Section 2 Installation........................................................................................................................... 2.1 Plumbing the Instrument.................................................................................................................. 2.1.1 Plumbing Connections ............................................................................................................ 2.1.2 Adjusting the Flow Rate .......................................................................................................... 2.1.3 Electrical Connections ............................................................................................................ 2.1.4 Connecting Multiple Sensors .................................................................................................. 2.2 Using the Optional Analog I/O Kit .................................................................................................... 2.3 Wiring the Optional Junction Box.....................................................................................................

15 17 19 20 22 22 24 28

Section 3 Configuration Programming .............................................................................................. 3.1 Changing Operating Configuration .................................................................................................. 3.1.1 Changing Operating Configuration For RS485 Operation ...................................................... 3.1.2 Changing Operating Configuration For RS232 Operation ...................................................... 3.2 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor ............................... 3.2.1 Setting Up Analog Inputs ........................................................................................................ 3.2.2 Setting Up the Analog Outputs ............................................................................................... 3.2.3 Determining the Full Scale Value............................................................................................ 3.2.4 Understanding the 4-20 mA Output Signal ............................................................................. 3.2.5 Calculation at the SCADA ....................................................................................................... 3.3 4-20 mA Output Test........................................................................................................................ SCADA Worksheet ................................................................................................................................

29 29 29 31 31 31 32 33 34 35 36 37

Section 4 Serial Port Protocol and Commands ................................................................................ 39 4.1 Communication Protocol.................................................................................................................. 39 4.2 Command and Data Syntax............................................................................................................. 39 Section 5 Maintenance ........................................................................................................................ 5.1 Cleaning the Sensor ........................................................................................................................ 5.1.1 Cleaning Frequency ................................................................................................................ 5.1.2 Brush Cleaning ....................................................................................................................... 5.1.3 Stain Cleaning......................................................................................................................... 5.2 Long-term Storage or Shipping........................................................................................................ 5.3 Replacing or Removing the Sensor Flow Cell ................................................................................. 5.4 Tubing Replacement ........................................................................................................................

43 43 43 43 44 45 46 46

GENERAL INFORMATION .................................................................................................................... 47 Certification............................................................................................................................................ 48 How to Order ......................................................................................................................................... 50 Repair Service ....................................................................................................................................... 51 Warranty ................................................................................................................................................ 52

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Page 3 Table of Contents

Safety Precautions Please read this entire manual before unpacking, setting up, or operating this instrument. Pay particular attention to all danger and caution statements. Failure to do so could result in serious injury to the operator or damage the equipment. To ensure the protection provided by this equipment is not impaired, do not use or install this equipment in any manner other than that which is specified in this manual.

Use of Hazard Information If multiple hazards exist, this manual will use the signal word (Danger, Caution,Note) corresponding to the greatest hazard. DANGER Indicates a potentially or imminently hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation that may result in minor or moderate injury. NOTE Information that requires special emphasis.

Precautionary Labels Read all labels and tags attached to the instrument. Personal injury or damage to the instrument could occur if not observed.

!

This symbol, if noted on the instrument, references the instruction manual for operation and/or safety information.

Laser Safety Information This product contains a laser-based sensor that is a Class 1 product (as defined by 21 CFR, Subchapter J, of the Health and Safety Act of 1968) when used under normal operation and maintenance. Service procedures on the sensor can result in exposure to invisible radiation. Service should be performed only by factory–authorized personnel. Accession number 8921784. The particle counter has been evaluated and tested in accordance with EN 61010-1:1993, “Safety Requirements For Electrical Equipment For Measurement, Control, and Laboratory Use” and IEC 825-1:1993, “Safety of Laser Products”. MODEL

PCX CE W/DIS 115V NEMA

P/N

57050-00

MFG DT

OCTOBER 1999

S/N

991000014

OPTION

2082310-2

–WARNING– DO NOT RETURN THIS UNIT FOR REPAIR OR CALIBRATION IF IT CONTAINS ANIMAL BY–PRODUCTS, TOXIC OR RADIOACTIVE MATERIALS. REF: OSHA HAZARD COMMUNICATION STD 29 DFR SECTION 1910.1200

CLASS 1 LASER PRODUCT IEC 825-1

Warning Label

Warning Label

VOLTS

+/-15V 1A

SIZES

2u

FLOW

100 ML/MIN

LE

P AM

S

THIS PRODUCT COMPLIES WITH 21 CFR, CHAPTER 1, SUBCHAPTER J

1993

DANGER INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

Warning Label

Identification Label

Page 4 Safety Precautions

57050safety.fm

General Specifications Sensor: Smallest Particles Counted: 2 microns Largest Particles Counted: 750 microns Distance from Computer to Sensor: 4,000 feet maximum (for entire RS 485 signal path) Power: 115 V ac (±10%); Optional 220 V ac (±10%); 50/60 Hz

Enclosure: NEMA 4X Indicators: Power, Counting Display, Clean Sensor, and Alarm Flow Rate: 100 mL/Minute, Nominal Max. Pressure: 65 psig, not more than 1 minute duration; 55 psig continuous

Operating Temperature Range: 0 – 50 °C (32 – 122 °F) Fluid Connections: Inlet: Quick Disconnect. Connects to ¼-inch O.D Tubing Outlet: Quick Disconnect. Connects to ¼-inch O.D. Tubing

Accessories/Options: Flow Control: Both active and passive/manual control devices available Computer: IBM compatible with the following minimum specifications: Pentium 166 MHz with 32 MB of RAM and 2 GB hard drive. SVGA color graphics, 800 x 600 video resolution, Windows® 95, 98 or NT 4.0 or higher. Vista Software: For monitoring filter performance, generating reports

Wiring/Cabling: Wall Plug: 120 V ac NEMA-Enclosed Power Supply: optional

Analog Input/Output Card: Input: accepts input signals from external devices; Output: provides an analog output level proportional to total number of particles counted (raw count); includes installation manual Junction Box: For permanent installation at test site locations so that a sensor can be easily connected and removed without interrupting RS485 network.

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Page 5 General Specifications

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OPERATION

DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals.

DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité des Produits (FDSP) et se familiariser avec toutes les procédures de sécurité avant de manipuler tous les produits chimiques.

PELIGRO La manipulación de muestras químicas, estándares y reactivos puede ser peligrosa. Revise las fichas de seguridad de materiales y familiarícese con los procedimientos de seguridad antes de manipular productos químicos.

GEFAHR Das Arbeiten mit chemischen Proben, Standards und Reagenzien ist mit Gefahren verbunden. Es wird dem Benutzer dieser Produkte empfohlen, sich vor der Arbeit mit sicheren Verfahrensweisen und dem richtigen Gebrauch der Chemikalien vertraut zu machen und alle entsprechenden Materialsicherheitsdatenblätter aufmerksam zu lesen.

PERIGO A manipulação de amostras, padrões e reagentes químicos pode ser perigosa. Reveja a folha dos dados de segurança do material e familiarize-se com todos os procedimentos de segurança antes de manipular quaisquer produtos químicos.

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Page 7 OPERATION

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Section 1

General Description The 2200 PCX Instrument is supplied with a local display of particle counts. If you are operating the 2200 PCX Instrument in “AUTO” (stand-alone) mode or with the Vista data collection software program, the 2200 PCX Instrument with Local Display indicates the "normalized" count (counts/mL) based on the selected size range, count period, and flow rate. These parameters are either set in the 2200 PCX Instrument or set by the data collection software. When operating the 2200 PCX Instrument with Vista data collection software, or in manual mode, the display gives the total counts over the size range and count period selected in the 2200 PCX Instrument. This displayed information is useful in working areas where a quick check of “localized” counts at selected stations is needed in detecting filter problems. Particle removal information is collected from 1 to 32 size ranges from 2 to 250 µm. These size ranges can be easily changed (re-programmed) based on state or federal regulations, or to mimic sizes corresponding to Giardia or Cryptosporidium. The system also records signals from other devices measuring turbidity, sample flow rate, pH, and more. Expansion is available by connecting additional sensors into the computerbased data acquisition system. See Figure 3.

Figure 1 shows a typical system using the on-line particle counting sensors (2200 PCX Instrument) with power supply (NEMA-enclosure is optional), a controlling computer and Vista Windows-based software. Figure 1

On-Line Sensor (Model 2200 PCX w/Local Display)

Power Counting

Alarm Clean Sensor

2200 PCX Particle Counter

Hach’s laser-diode-based particle counting sensors are specifically designed for drinking water applications. Water is directed into the sensor and passes through an optical flow cell measuring 750 x 750 microns. Each particle that passes through the sensor generates a signal corresponding to its size.

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Page 9 General Description

General Description, continued Each sensor comes with a calibration curve showing the signal response versus size of each particle. Hach uses NIST-traceable spheres of defined size to calibrate each sensor. Calibration information is stored in sensor memory, and is used to separate the particle counts into the proper size category.

1.1 Interpreting the Front Panel The clear front panel of the NEMA 4X-rated enclosure (shown in Figure 2) is designed for easy viewing of diagnostic LEDs as well as the local particle count display. Refer to Table 1. Figure 2

Instrument Front Panel

Power Counting

1

Alarm Clean Sensor

3

2

4

2200 PCX Particle Counter

5

Table 1 Status Indicators Item Number

Indicator/Feature

Function

1

Power LED

Illuminates when power is supplied to the unit.

2

Counting LED

Illuminates during the count cycle (when the actual counting occurs).

3

Alarm LED

Illuminates when programmed count alarm limit has been exceeded.

4

Clean Sensor LED

Illuminates if a fault in the sensor is detected that may be caused by a dirty sensor. Refer to Section 5.1 on page 43.

5

Count Display Window

Totalized (raw) particle count in the size range limits and for the count period set in the 2200 PCX Instrument Load Command Menu (see Changing Operating Configuration) and while operating with a PCC or with Vista data collection software program. —or— Normalized particle count (counts/mL) in the size range limits for the count period, and flow rate set in the 2200 PCX Instrument Load Command Menu while in the AUTO (stand-alone) mode, or as controlled by Vista data collection software program.

Page 10 Interpreting the Front Panel

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PCX Remote Sensor (Location “1”)

Alarm Clean Sensor

2200 PCX Power Counting

Alarm Clean Sensor

Power Counting

Alarm Clean Sensor

2200 PCX

2200 PCX

Particle Counter

Particle Counter

Particle Counter

Total RS485 distance Up to 4000 feet without repeater.

System Computer with Data Collection Software

Sensor Communications Cable, RS485 (Beldon 9841 or equal)

Page 11 Interpreting the Front Panel

RS232 to RS485 Converter

Standard 25-pin or 9-pin Serial Computer Cable (or plug converter directly into computer).

Water Wier Flow Controllers are shown (other automatic flow controllers available)

Networked System

Power Counting

General Description, continued

PCX On-Line Sensor (Location “0” = influent)

Figure 3

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PCX Remote Sensor (Location “?”)

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INSTALLATION

Some of the following manual sections contain information in the form of warnings, cautions and notes that require special attention. Read and follow these instructions carefully to avoid personal injury and damage to the instrument. Only personnel qualified to do so, should conduct the installation/maintenance tasks described in this portion of the manual. Certains des chapitres suivants de ce mode d’emploi contiennent des informations sous la forme d’avertissements, messages de prudence et notes qui demandent une attention particulière. Lire et suivre ces instructions attentivement pour éviter les risques de blessures des personnes et de détérioration de l’appareil. Les tâches d’installation et d’entretien décrites dans cette partie du mode d’emploi doivent être seulement effectuées par le personnel qualifié pour le faire. Algunos de los capítulos del manual que presentamos contienen información muy importante en forma de alertas, notas y precauciones a tomar. Lea y siga cuidadosamente estas instrucciones a fin de evitar accidentes personales y daños al instrumento. Las tareas de instalación y mantenimiento descritas en la presente sección deberán ser efectuadas únicamente por personas debidamente cualificadas. Einige der folgenden Abschnitte dieses Handbuchs enthalten Informationen in Form von Warnungen, Vorsichtsmaßnahmen oder Anmerkungen, die besonders beachtet werden müssen. Lesen und befolgen Sie diese Instruktionen aufmerksam, um Verletzungen von Personen oder Schäden am Gerät zu vermeiden. In diesem Abschnitt beschriebene Installations- und Wartungsaufgaben dürfen nur von qualifiziertem Personal durchgeführt werden. Algumas das seguintes secções do manual contêm informações em forma de advertências, precauções e notas que requerem especial atenção. Leia e siga atentamente as presentes instruções para evitar ferimentos pessoais e não danificar o instrumento. As tarefas de instalação/ manutenção descritas nesta parte do manual só poderão ser executadas por pessoal qualificado para o fazer.

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Page 13 INSTALLATION

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Section 2

Installation The Model 2200 PCX Particle Counting Sensor consists of a sensor and a power supply. The sensor has a NEMA-4X enclosure and is designed for indoor environments. The standard power supply must be plugged into a wall outlet above the flood level. An optional NEMA-4X-enclosed power supply may be hard-wired to the sensor and is necessary for applications requiring extra power for analog outputs to external data acquisition systems. See Figure 4.

DANGER This instrument should be installed by qualified technical personnel to ensure adherence to all applicable electrical and plumbing codes.

DANGER Cet appareil doit être installé par du personnel technique qualifié, afin d'assurer le repect de toutes les normes applicables d'électricité dt de plomberie. GEFAHR Um zu gewährleisten, daß alle elektrischen und sanitärinstallationstechnischen VDE-Vorschriften und gegebenefalls die Zusatzvorschriften der zuständigen Elektrizitäts- und Wasserwerke erfüllt werden, darf dieses Gerät nur von geschultem Fachpersonal installiert werden. PELIGRO Este instrumento debe ser instalado por personal técnico capacitado para asegurar elo cumplimiento con todos los códigos eléctricos y de plomería aplicables. PERICOLO Questa macchina deve essere installata da un personale tecnico qualificato affincchè ogni codice elettrico e di tubature adeguato sia rispettuto.

Figure 4

Sensor and Water Weir Orientation

Water Weir Flow Controller

AC Power Adapter

Sensor Outlet

Adjust height to control the flow rate.

(Quick Disconnect Fitting)

Power Counting

Alarm Clean Sensor

2200 PCX Particle Counter

The distance between the sensor and the weir can vary.

To Drain or Waste

From Sample Source Sensor Outlet (Quick Disconnect Fitting)

57050install.fm

Mounting clips can be used to mount the weir to the sensor.

Page 15 Installation

Installation, continued To ensure the sensor will prime by gravity feed, the standard Water Weir flow controller must be mounted with the top of the 2200 PCX Instrument plumbing connector lower than the Water Weir overflow, see Figure 4. Sensor dimensions and additional mounting information is shown in Figure 5. Several other flow controllers are available to address different installation needs. Mechanical and electronic controllers for the Water Weir are optional. Detailed plumbing procedures appear on the following pages. Figure 5

Sensor Mounting Information Plug-In AC Power Adapter 5.5 inches x 3.9 inches x 2.6 inches deep

Note: Water Weir Flow Controller requires additional space.

210.8 mm 8.30 inches 177.8 mm 7.00 inches

152.4 mm 6.00 inches

Power

350.5 mm 13.80 inches 330.2 mm 13.00 inches

Counting

Alarm Clean Sensor

2200 PCX Particle Counter

9.52 mm .375 inches 4 places

Page 16 Installation

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Installation, continued 2.1 Plumbing the Instrument DANGER This instrument is not designed for use with samples that are flammable or explosive in nature. If any sample solution other than water is used in this product, test the sample/product compatibility to assure user safety and proper product performance.

DANGER Cet appareil n'est pas prévu pour utilisation avec des échantillons de nature inflammable ou explosive. Pour toute solution d'échantillon autre que de l'eau utilisée avec cet appareil, tester la compatibilité échantillon/appareil pour assurer la sécurité de l'utilisateur et le fonctionnement correct de l'appareil. GEFAHR Dieses Instrument darf nicht in Verbindung mit Proben benutzt werden, die entflammbar oder explosiv sind. Wenn irgendeine andere Lösung als Wasser in diesem Gerät analysiert werden soll, muß die Proben/Gerät-Kompatibilität getestet werden, um die Sicherheit des Benutzers und korrektes Arbeiten des Gerätes zu gewährleisten. PELIGRO Este instrumento no está diseñado para usarse con muestras de naturaleza inflamable o explosiva. Si se empleara en este producto alguna solución de muestra que no fuera a base de agua, ponga a prueba la compatibilidad de la muestra/producto, para cerciorarse de la seguridad y del correcto funcionamiento del producto. PERICOLO Questa macchina non è concepita per essere utilizzata con campioni di natura infiammabile o esplosiva. Se una soluzione campione oltre l’acqua è utilizzata in questo prodotto, si deve testare la compatibilità campione / prodotto per garantire la sicurezza dell’utente e le proprie performanze del prodotto.

Plumbing connections involve connecting the particle sensor and a flow controller to the water system. See Figure 6. The most important part of connecting the plumbing is tapping the best sampling location in the water system. A good sampling location ensures a meaningful measurement. Listed below are guidelines for tapping the best location. Refer also to Figure 7.

57050install.fm

•

Minimize the distance from the tap to the sensor.

•

Tap in a location that can supply 300 – 500 mL/min. flow with four feet of head above the elevation of the sensor.

•

Tap upstream of a pressure reduction valve or a point where the plumbing becomes larger. These locations tend to create bubbles that can be erroneously counted as particles.

•

Tap 18 inches downstream of a bend in the plumbing. Bends create turbulence, which mixes the particles—resulting in uniform particle-size distribution. The 18" distance from the bend restores an even flow, ensuring complete mixing while reducing particle settling.

•

Tap a location with a high flow rate to keep heavy particles suspended.

•

Tap the pipe as shown in Figure 7 to avoid air or sediment contamination of the sample.

Page 17 Plumbing the Instrument

Installation, continued Figure 6

Plumbing Connections

Maximum Head Loss plus 4 feet

AC Power Adapter

Power Counting

Alarm Clean Sensor

Filter 2200 PCX Particle Counter

Plumbing Tap with Shut Off

Sample Inlet tubing should not extend beyond 10 feet.

Drain

Page 18 Plumbing the Instrument

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Installation, continued Figure 7

Sampling Options Air (Typical) Sediment (Typical)

Poor

Good

Best

Poor

2.1.1 Plumbing Connections Use the following procedure and Figure 8 to plumb the water source to the Water Weir Controller and 2200 PCX Instrument. 1. Install a separate plumbing tap, including a shut-off valve, for the 2200 PCX Instrument. 2. Install a quick-disconnect fitting on the plumbing tap. A white compression fitting for ¼" tubing is provided. Use the appropriate adaptors to install this fitting. 3. Install one end of the ¼" black semi-rigid tubing in the quick-disconnect fitting as shown below. A 10-foot length of this tubing is provided with the Water Weir. Note: Do not lengthen the tubing. Tubing lengths longer than 10 feet will cause the larger particles to "drop out" of the sample, distorting the accuracy of the particle size reading.

Figure 8

Installing a Quick Disconnect Fitting on the Tubing

4. Route the black semi-rigid tubing (already installed in Water Weir) to the water source; connect tubing to the source. 5. Install an 18" long piece of ¼" flexible tubing (provided with Water Weir) in the Water Weir outlet. Attach to fitting as shown in Figure 8. 6. Attach quick-disconnect fitting to other end of tubing in step 5 then fasten tubing to sensor inlet port. See Figure 11.

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Page 19 Plumbing the Instrument

Installation, continued 7. Attach quick-disconnect fitting to another 12 inch long piece of ¼-inch flexible tubing then insert into particle sensor outlet port. 8. Place other end of tubing in step 7 into Water Weir return, see Figure 9. 9. Install drain line on Water Weir. Slip clear ½-inch I.D. hose over barbed fitting on Water Weir drain and route to appropriate drain. 10. Open shut-off valve on plumbing tap and check for leaks. Figure 9

Water Weir Plumbing Connections

Flow Control Device (Water Weir)

609.6 mm 2 feet

Inlet from sample source ¼″ Black Tubing Check for kinks in tubing as it enters the fitting.

Outlet to sensor

2.1.2 Adjusting the Flow Rate Adjust the flow rate of the Water Weir for 100 mL/min. Flow rate is adjusted by changing the head. Refer to the instructions below and Figure 10 and Figure 11. 1. Move the white cap up to lower the head/flow; move it down to increase the head/flow. For the Model 2200 PCX Instrument, 33" from the overflow to the white cap is about 100-mL/min flow. Moving the cap one vertical inch changes the flow rate about one or two milliliters per minute. 2. Measure the flow for one full minute into a 200 mL graduated cylinder. Record the result as mL/min. 3. Adjust flow as in step 1 if necessary and remeasure. Note: The more accurately you set the flow, the more accurate the resulting count concentration data.

Page 20 Plumbing the Instrument

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Installation, continued Figure 10

Adjusting the Water Weir Flow Rate

Sensor Outlet

Flow Control Device (Water Weir)

Sensor To adjust the flow rate, slide this cap up or down. 25.4 mm (1 inch) = 1-2 mL/min To measure the flow rate, rotate the cap as shown and use a graduated cylinder and a stop watch. Measure for one minute.

2200 PCX Particle Counter

832.2 mm (33 inches) from the overflow to the white cap is about 100-mL/minute.

To Drain or Waste

4. Allow the water to flow through the system for 24 hours before recording measurements. New plastic tubing can “shed” particles for the first several hours of use. These particles could affect the accuracy of the particle count readings. If the optional NEMA-rated power supply was ordered with the on-line sensor, all primary AC power can be physically isolated from areas that contain flowing water. The power supply is housed in a NEMA enclosure, which should be wired by certified/licensed electricians in accordance with all applicable laws and codes. Figure 11

Positioning the Sensor Outlet Tube in the Flow Adjustment Cap

Cut the end of this tube straight across.

Point the tubing straight down. Extend the tube no more than ¼″ inside the cap.

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Page 21 Plumbing the Instrument

Installation, continued 2.1.3 Electrical Connections Proper fusing and power interruption means must be provided on site. If AC power is wired in conduit, provide a local disconnect next to the instrument. Some programming functions require the power to be cycled. Mount the AC power supply enclosure above flood stage areas. The sensor is shipped with the cable wired between the AC power supply and the sensor. An optional NEMA-rated power supply is available. See Figure 12 for connection information. The 2200 PCX sensor features serial RS-485 data communication. An RS485 serial network provides asynchronous communications between multiple sensors and a controlling computer. The total distance from the RS232 to RS485 converter to the farthest sensor may be up to 4000 feet without an amplifier/repeater. The use of a junction box allows a 2200 PCX Instrument to be brought to the site and plugged into the J-box for sampling, then disconnected and moved to another site. See Figure 17.

2.1.4 Connecting Multiple Sensors A typical connection of multiple sensors is described below. The example presented describes the connection of two sensors. Refer to Figure 13 and the instructions below. 1. Route RS485 cable between the RS232 to RS485 converter and PCX #1 (do not connect wiring at this time). Use RS485-type shielded, low-capacitance twisted-pair cable (Belden PN 9841 or equivalent). 2. Assuming power supplies have been wired to the 2200 PCX Instruments (described earlier), verify that line power to power supply and line power to RS-232 to RS-485 converter have been disconnected. 3. Dress cable wires at both ends of the cable; at the RS232 to RS485 converter end, connect the white wire to the terminal location marked "A", attach the blue wire to the terminal marked "B", and attach the shield to "S". 4. At PCX #1, run cable through a liquid-tight bulkhead fitting then connect blue wire to terminal lug marked "485B". Connect white wire to terminal lug marked "485A". Connect shield to "SGND". If using optional J-box (see description above), wire into the line as described in Section 2.3 on page 28. 5. To connect another 2200 PCX Instrument to the system, dress cable wires at both ends of the cable then route cable through a second PCX #1 bulkhead fitting and to a bulkhead fitting of PCX #2. 6. Connect blue wire to terminal lug marked "485B" at both ends of the cable; connect white wire to terminal lug marked "485A", and shield to "SGND" at both ends of the cable. 7. Repeat step 4 through step 6 above for each remaining 2200 PCX Instrument.

Page 22 Plumbing the Instrument

57050install.fm

Installation, continued 8. For the last 2200 PCX Instrument in the string, set jumper JP1 (located in lower left corner of the box) so that two pins are shorted together, see Figure 13. Close and secure the cover and reconnect power disconnected in step 2 above. Note: Leave jumper JP1 open (not terminated) in all instruments except the last one.

Figure 12

Wiring Optional Power Supply to the On-line Sensor

Pre-wired NEMA Power Supply MCA POWER

J6

I/O ALARM OUT

J8

I/O 4-20mA OUT BANK 1

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

J3

G ANALOG IN 4-20Ma IN

J4

J5

JP1

+15V

I_PWR

OUT4

AIN2

AGND

OUT0

OUT5

AIN3

-15V

OUT1

OUT6

AIN4

+5V

OUT2

OUT7

AIN5

DGND

OUT3

IN0

AIN6

SGND

I_RET

RET0

AIN7

485A

ALM1

IN1

D AINGND

485B

ALM2

RET1

SPARE

8 (YEL)

9 (RED)

10 (GRY)

11 (BLK)

12 (VIO)

+5V

A GND

D GND

-15V

7

+15V

6

3 (GRN)

5

2 (WHT)

GND

4

1 (BLK) AC (L)

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

VOID ANTY WARRWARRAN NTY VOID ROKE IF BIF BROKVO ENID WARRANTY IF BROKEN

AC (N)

J1 RS232

Wire Clamp/ Strain Relief

Cable: Power Supply to Particle Counter (6 feet long, supplied by Hach Company)

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To facility power

Page 23 Plumbing the Instrument

Installation, continued Figure 13

Connecting RS485 Wires For Multiple Sensor Applications

PCX #1

MCA POWER

I/O ALARM OUT

J6

J8

I/O 4-20mA OUT BANK 1

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

PCX #2 (last)

G ANALOG IN

MCA POWER

4-20Ma IN

J3

J4

J5

J6

I/O ALARM OUT

J8

J1 RS232

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

G ANALOG IN 4-20Ma IN

J3

J4

J5

J1 RS232

VOID ANTY WARRWARRANNTY VOID OKE IF BR IF BROKVO ENID AN WARR TY IF BROKEN

+15V

I_PWR

OUT4

AIN2

+15V

I_PWR

OUT4

AIN2

AGND

OUT0

OUT5

AIN3

AGND

OUT0

OUT5

AIN3

-15V

OUT1

OUT6

AIN4

-15V

OUT1

OUT6

AIN4

+5V

OUT2

OUT7

AIN5

+5V

OUT2

OUT7

AIN5

DGND

OUT3

IN0

AIN6

DGND

OUT3

IN0

AIN6

SGND

I_RET

RET0

AIN7

SGND

I_RET

RET0

AIN7

485A

ALM1

IN1

AINGND D

485A

ALM1

IN1

AINGND D

485B

ALM2

RET1

SPARE

485B

ALM2

RET1

SPARE

JP1

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

VOID ANTY WARRWARRANNTY VOID OKE IF BR IF BROKVO ENID AN WARR TY IF BROKEN

JP1

I/O 4-20mA OUT BANK 1

JP1 is shown TERMINATED in this unit.

JP1 is shown NOT-TERMINATED in this unit.

RS485-type shielded cable (Beldon pn 9841 or exact equivalent)

RS485 to RS232 Converter

Standard 25-pin Computer Cable (or plug directly into computer)

JP1 will be terminated in only the last unit on the network.

2.2 Using the Optional Analog I/O Kit When the optional analog I/O kit is installed along with Vista software, 0 to +5V [or 0 to +10V]) from other measurement devices such as turbidimeters and flow meters. Connect and analyze analog signals of any combination of 4 to 20 mA and 0 to +5 V (or 0 to +10V) inputs simultaneously. See Figure 15 and Figure 16.

Page 24 Using the Optional Analog I/O Kit

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Installation, continued Use the following operating configuration to enable the two desired analog inputs: If inputs are voltage:

Figure 14

•

Select +5V full scale by removing jumper JP2 through JP7 corresponding to the input being used (AIN2 through AIN7).

•

Select +10V full scale by installing jumper JP2 through JP7, corresponding to the input being used (AIN2 through AIN7).

•

Configure voltage inputs to accept 4-20mA inputs by connecting a 250 ohm, 1% (or better) shunt resistor in parallel with the analog signal cable and setting the appropriate jumper for 5 V operation. See Figure 14.

Voltage Inputs

The voltage inputs can be configured to accept 4-20 mA inputs by connecting a 250Ω, 1% (or better) shunt resistor in parallel with the analog signal cable and setting the appropriate jumper (JP2 to JP7) for 5V operation.

AIN2 AIN3 AIN4 AIN5 AIN6 AIN7 AINGND D SPARE

If inputs are current (4-20 mA): •

Use IN0 (RET0 is ground) and IN1 (RET1 is ground) on 2200 PCX Instrument Interconnect Card. The incoming data is sent along with particle count data, via serial communications, to the computer where it is displayed and recorded (when on-line software is being used). Connect analog inputs from external devices to the 2200 PCX Instrument interconnect card as shown in step 16.

Each sensor can also provide up to eight 4 to 20 mA analog outputs of particle count data if the optional I/O kit is installed. The 4 to 20 mA output levels are proportional to the total number of particles counted during the sample period. This output data is also communicated over the network to the computer for display and recording (when on-line software is being used). Each size category will have a unique analog output signal and will interface to an individual analog input on corresponding data acquisition system input terminals. Analog outputs are connected to the 2200 PCX Instrument interconnect card similar to the example shown below.

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Page 25 Using the Optional Analog I/O Kit

Installation, continued Figure 15

Connecting Analog Input Signals to 2200 PCX Instrument Sensor

MCA POWER

J6

I/O ALARM OUT

J8

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

J3

G ANALOG IN 4-20Ma IN

J4

J5

JP2 JP3

J1 RS232

+15V

I_PWR

OUT4

AIN2

AGND

OUT0

OUT5

AIN3

-15V

OUT1

OUT6

AIN4

+5V

OUT2

OUT7

AIN5

DGND

OUT3

IN0

AIN6

SGND

I_RET

RET0

AIN7

485A

ALM1

IN1

D AINGND

485B

ALM2

RET1

SPARE

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

JP4 JP5 JP6 JP7

VOID ANTY WARRWARRAN NTY VOID ROKE IF BIF BRTY OKVO ENID WARRAN IF BROKEN

JP1

4-20 mA from turbidimeter, flow meter, etc.

I/O 4-20mA OUT BANK 1

Sample Input

0 to +5V or 0 to +10V, attach braided shield to AINGND (4-20 mA with appropriate shunt resistor)

Page 26 Using the Optional Analog I/O Kit

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Installation, continued Figure 16

Connecting Analog Output Signals from PCS Sensor

MCA POWER

J6

I/O ALARM OUT

J8

I/O 4-20mA OUT BANK 1

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

J3

ANALOG G IN 4-20Ma IN

J4

J5

JP2 JP3

J1 RS232

JP1

+15V

I_PWR

OUT4

AIN2

AGND

OUT0

OUT5

AIN3

-15V

OUT1

OUT6

AIN4

+5V

OUT2

OUT7

AIN5

DGND

OUT3

IN0

AIN6

SGND

I_RET

RET0

AIN7

485A

ALM1

IN1

AINGND

485B

ALM2

RET1

SPARE

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

JP4 JP5 JP6 JP7

VOID ANTY WARRWARRAN NTY VOID ROKE IF BIF BRTY OKVO ENID WARRAN IF BROKEN

OUT0 OUT1 OUT2 OUT3

Analog In

Analog In

Analog In

Analog In

Device #1

Device #2

Device #3

Device #4

Typical Connections to Data Acquisition Systems (ie. SCADA, PLC)

From external +15 to +24V Power Supply (150mA rating, if required)

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Page 27 Using the Optional Analog I/O Kit

Installation, continued 2.3 Wiring the Optional Junction Box Junction boxes are available for prewiring RS485 network sensor locations. Junction boxes allow sensors to be moved between multiple locations, without disturbing the network integrity. Connect wires from the RS485 cables (Belden 9841 or exact equivalent) as shown in Figure 17. Figure 17

Junction Box Wiring Information

From the last particle counter or from the last junction box. (Beldon Cable 9841)

To the next particle counter or to the next junction box. (Beldon Cable 9841)

Wire Color

Connection

White

485A

Blue

485B

Green

SGND

Use the supplied pigtail to connect the Junction Box to a 2200 PCX Particle Counter.

*

green drain wire must go through * The a 100 ohm, ½ W resistor BEFORE

To the particle counter

the SGND connection.

Page 28 Wiring the Optional Junction Box

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Section 3

Configuration Programming

3.1 Changing Operating Configuration Most applications for the Model 2200 PCX Instrument are configured at the factory prior to shipment. If custom configuration is required, configure the particle sensor for either RS485 or RS232 operation using the information below. A worksheet is provided for your convenience. See page 37.

3.1.1 Changing Operating Configuration For RS485 Operation 1. Using a computer terminal emulation software (Windows® Terminal, Procomm, etc.) configure the computer for: COM 1 port or COM 2 port, 9600, N, 8, 1. Start the terminal emulation program before applying power to the sensor. 2. Verify sensor power is off, then connect plumbing and cabling, including serial communications to the 2200 PCX Instrument. Note: The word "load" in the next step is case sensitive; all letters in the word must be either lower or upper case characters.

3. Turn on power only to the sensor to be configured (only one PCX on 485 bus at a time; turn all other PCX instruments off or disconnect them from the RS-85 network). 4. To change the operating configuration, send the ASCII command "load <Enter>" to the PCX using Terminal. You will have 30 seconds after initialization to access the change menu for configuration of the PCX (initialization takes about 5 seconds after the power is turned on). The opening command menu (with analog I/O card installed) has the following format:

---MAIN MENU---RMCA [2082375-1E] 1 - UNIT ID32 [0...32*] 2 - COUNT PERIOD00:10 [MIN,SEC] 3 - CAL LIMITS0800–1200 [LOWER, UPPER mV] 4 - COUNT MODEMANUAL [AUTO, MANUAL] 5 - PANEL DISPLAY2.0 [CUMULATIVE 9U0] 6 - FLOW RATE 100 mL/min] 7 - CALIBRATE 8 - DEFAULT MEMORY 9 - SETUP ANALOG I/OQ = QUIT

5. To select a specific operating parameter from the main menu, type the number (1–9) then follow the prompts at the Command line. See Table 2.

* The default ID number is 32. This number is set at the factory to a lower number prior to shipment; 32 typically means the EPROM was changed (the unit was re-optioned).

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Page 29 Configuration Programming

Configuration Programming, continued Table 2 Selecting Operating Parameters Menu Number

Command Line Message

Notes

1

ENTER ID

"00" corresponds to LOC 01, etc., in the Vista Software

2

ENTER MIN:SEC

Sets count period when in "AUTO" mode

3

ENTER LOWER THRESHOLD (mV)

Calibration check threshold

ENTER UPPER THRESHOLD (mV)

Calibration check threshold

4

ENTER COUNT MODE (A OR M)

Auto = locally self-timed; Manual = remote control (Vista software)

5

ENTER LOWER SIZE

Defines particle size range (for front panel numerical display units only). Do not set lower size to less than 2 microns.

ENTER UPPER SIZE (0 FOR CUMULATIVE)

Defines particle size range (for front panel numerical display units only).

ENTER FLOW RATE

If 0 is entered, display will show particles/count period (raw count)

6

If >0 is entered, display will show particles/mL (normalized count) 7

CALIBRATING DISPLAY

Continuous display of calibration data. Used for 4–20mA analog output calibration. Toggles from 4–20mA when space bar is pressed.

8

DEFAULT MEMORY

Do not enter a message on this line unless instructed by the manufacturer.

9

SETUP ANALOG I/O

Use only when Analog I/O card is installed.

The following is an example when "9" (SETUP ANALOG I/O) is pressed:

---I/O CARD SETUP MENU --1 -ANALOG INPUTS [AN0,AN1,AN2,AN3,AN4,AN5,AN6,AN7] [OFF,OFF,OFF,OFF,OFF,OFF,OFF,OFF] 2 -ANALOG OUTPUTS CH LOWER 0 --1 --2 --3 --4 --5 --6 --7 ---

UPPER -----------------

FULL SCALE ---------------------------------------------------------

R - RETURN TO MAIN MENU Command [1,2,R]: Note: For lower size, enter 0 for cumulative count (no upper limit). Upper size defines the count value represented by 20 mA.

6. After selecting "1" for analog inputs or "2" for analog outputs, enter the command number but do not press <Enter> key. If "2" is selected, add the following prompt lines, one line at a time, to the above menu:

ENTER ENTER ENTER ENTER Page 30 Changing Operating Configuration

ANALOG OUTPUT CHANNEL [0..7]: LOWER SIZE: UPPER SIZE (0=cumulative): FULL SCALE COUNT (0=disable channel):

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Configuration Programming, continued When finished, end the sequence by typing “Q <Enter>”. All of the configuration information will be saved in the 2200 PCX Instrument memory. 7. Repeat step 6 above for additional channels. 8. Repeat steps 1 through 6 above for additional sensors.

3.1.2 Changing Operating Configuration For RS232 Operation 1. Turn power off to 2200 PCX Instrument to be configured. 2. Open the instrument cover then disconnect RS485 "COM" line connector (485A, 485B, SGND) from 2200 PCX Instrument Interconnect Card. 3. Connect programming cable between connector J1-RS232 on the 2200 PCX Instrument Interconnect Card and serial port 1 or 2 of your computer. 4. Using your computer's terminal emulation software (Windows "Terminal", "Procomm", etc.) configure the computer for: COM 1 or 2 port, 9600, N, 8, 1. 5. Apply power to the 2200 PCX Instrument, then repeat steps 4 through 7 of Section 3.1.1, above.

3.2 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor 3.2.1 Setting Up Analog Inputs The 2200 PCX sensor equipped with an analog I/O card will permit connection of up to eight (8) analog inputs from other devices. Two of the inputs, IN0/RET0 and IN1/RET1, are configured for 4-20 mA inputs. Analog inputs AIN2 through AIN7 are configured as either 0–5 V or 0–10 V inputs. AIN 2–7 use a common ground connection, AINGND. Select 0–5 V or 0–10 V operation by properly setting jumpers JP2 through JP7 on the analog board. See Figure 14 on page 25 for proper jumper settings. Configure jumpers for 4-20 mA inputs by setting the inputs for 0–5 V operation then installing a 250 ohm, 1% (or better) shunt resistor between AIN 2, for example, and AINGND. Note: If this option does not appear, either the analog card is not installed or is not functioning correctly. If the analog card is installed and the Setup Analog I/O menu does not appear, contact Hach.

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When the analog input connections are made, the analog inputs can be set up for use. See Section 3.1 on page 29 for specific setup instructions. Also see Figure 15 on page 26. Enter the programming sequence using the “Load” command as described. When the configuration program is accessed, the Main Menu will appear. If an Analog I/O card is installed, a menu option titled “Setup Analog I/O” will appear.

Page 31 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor

Configuration Programming, continued Select the SETUP ANALOG I/O option on the menu. The analog set up menu similar to the following will appear: ---I/O Card Setup Menu---

1 –Analog Inputs [AN0,AN1,AN2,AN3,AN4,AN5,AN6,AN7] [ON, ON, ON, ON, ON, ON, ON, ON]2 – Analog Outputs

Note: Some operation problems have been reported if one or more unused analog inputs are set to OFF when others are in use. Set all analog inputs to ON, even if they are not in use.

CH

Lower

Upper

Full Scale

0

– – –

– – –

– – – – – –

1

– – –

– – –

– – – – – –

2

– – –

– – –

– – – – – –

3

– – –

– – –

– – – – – –

4

– – –

– – –

– – – – – –

5

– – –

– – –

– – – – – –

6

– – –

– – –

– – – – – –

7

– – –

– – –

– – – – – –

In most cases, the analog inputs will be set to ON when shipped from the factory. If the instrument reverts to default condition, the default is for the analog inputs is ON. If the analog connection to be used is indicated as ON, no further action is needed. If it is not set to ON, set it to ON before continuing.

3.2.2 Setting Up the Analog Outputs Up to eight analog output signals of particle count data can be configured for 2200 PCX sensors equipped with the analog I/O card. Connections for analog outputs are labeled OUT0 through OUT7. Grounds for all analog outputs are made to I-RET. All of these outputs are configured as 4-20 mA outputs. See Figure 16 on page 27. The analog particle count outputs are independent of the digital outputs via the RS485 connection to the Vista software package. The first step in setting up the analog outputs is to determine the proper count period. For raw water or filter influent samples, it is recommended that a count period between 6 and 15 seconds be set. For filter effluent samples, a count period between 30 seconds and one minute be set. Set the count period in the Main Menu, see Section 3.1 on page 29. Note: If the digital RS485 signal is connected to the Vista software package, the count period set in Vista will also be the count period used for analog outputs. Connection to Vista automatically overrides the count period set in the main menu during configuration programming.

Once the count period has been determined and set, the output channels must be set up. From 1 – 8 of the channels can be configured and used. Normally only 1 – 4 of these channels is used. Since each active channel requires a shielded, twisted-pair cable, wiring for eight channels and the connections to a PLC or other device can become quite expensive. However, careful decisions can result in a large amount of data being available with only three or four connections.

Page 32 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor

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Configuration Programming, continued The analog outputs can be configured for cumulative or differential count formats in any combination. One output can be configured for cumulative and another for differential if desired. Generally, setting all outputs as cumulative counts will provide the greatest flexibility. This will be discussed in greater detail below. Use the blank table on page 37 as a work sheet when determining how the analog output channels are to be set. Follow the instructions in Section 3.1.1, step 6, to set the lower and upper size for a channel. Some calculations must be performed to determine the proper setting for the Full Scale value, see Section 3.2.3, below.

3.2.3 Determining the Full Scale Value Full Scale (FS) = Counts/mL x mL sample mL Sample = 100 mL/min* x count period (in minutes) or = 100 mL/60 seconds x count period (in seconds)

Table 3 Sample Size Reference Table (assuming flow of 100 mL/min.) Count Period (seconds)

Sample Size (mL)

Count Period (seconds)

Sample Size (mL)

6

10

24

40

12

20

30

50

15

25

48

80

18

30

60

100

Counts/mL must be less than or equal to 17,000 counts/mL, this is the concentration limit of the 2200 PCX sensor. The value used for counts/mL should be as small as is practical for the sample to be measured. Select the maximum counts/mL by considering the resolution of the analog output signal. Determine the full scale value by estimating the maximum cumulative particle counts at the sensitivity of the instrument, >2 µm. Once that is determined, calculate the estimated full scale value for other channels by using the appropriate divisor from the tables below: Table 4 Divisors for determining full scale values Divide FS value for >2 µm by:

Divide FS value for >2 µm by:

>3 µm

3.4

>9 µm

90

>4 µm

8

>10 µm

125

>5 µm

15.6

>11 µm

166

>6 µm

27

>12 µm

216

>7 µm

43

>14 µm

343

>8 µm

64

>15 µm

422

To estimate divisors for values not shown in the table use the following formula: Divisor = (Size/2)3.

For example, the divisor for >18 µm is (18/2) 3 = 729 * The recommended flow rate for the 2200 PCX is 100 mL/min ±5%. This flow rate should be used whenever possible.

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Page 33 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor

Configuration Programming, continued 3.2.4 Understanding the 4-20 mA Output Signal The 4-20 mA output signal is divided into 4,096 steps where a signal of 4 mA will equal zero particles/mL and 20 mA will equal the full scale (FS) value. If the full scale value is set too high, the resolution of the analog output signal will be poor. For example, if the maximum concentration of the sensor, 17000, is selected, then smallest increment of counts that will be recorded is 4.15 particles/mL (17,000/4,096). This may be sufficient signal resolution for raw water, but may be insufficient for filter effluent. If filter effluent never exceeds, for example, 1000 counts/mL, then resolution of the analog output signal will be to the nearest 0.24 particles/mL (1,000/4,096). Setting Cumulative or Differential Modes Setting the analog particle count outputs as cumulative channels will minimize the number of channels that must be set and also provide the maximum amount of flexibility. For example, one set four differential channels: CH0 = 2-5 µm, CH1 = 5-7 µm, CH2 = 7-10 µm, and CH3 = 10-15 µm. Much more can be achieved if the channels are set to be cumulative instead. For example: CH0 = >2µm, CH1 = >5µm, CH2 = >7µm and CH3 = >10µm. Then, once values are received at the SCADA, values can be subtracted to create other combinations. To achieve differential data as 2-5µm, program the SCADA to subtract the value in CH1 from CH0. A total of ten distinctly different values can be achieved: Table 5 Calculating Differential Values From Cumulative Values CH 0 >2 µm CH 0 - CH 1 = 2-5 µm CH 1 >5 µm

CH 0 - CH 2 = 2-7 µm CH 1 - CH 2 = 5-7 µm

CH 2 >7 µm

CH 0 - CH 3 = 2-10 µm CH 1 - CH 3 = 5-10 µm

CH 2 - CH 3 = 7-10 µm CH 3 >10 µm

Page 34 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor

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Configuration Programming, continued 3.2.5 Calculation at the SCADA Once each analog output is defined for lower limit, upper limit, and full scale, the SCADA programmer must be informed as to how the information is to be handled. For each channel, the channel range and label must be defined, along with the lower and upper limit signal values and the divisor to apply to the upper limit value. In all cases, the lower limit signal (4 mA) will be 0 (zero) particles, the upper limit signal (20 mA) will be equal to the full scale value. The full scale value must then be divided by the sample volume (mL sample). For example: Assume a sample flow rate of 100 mL/min, a count period of 30 seconds, resulting in a sample volume of 50 mL. Assume also a maximum expected particle count of 1000 particles/mL. Then, FS value = 1000 particles/mL X 50 mL = 50,000 CH0 set to cumulative particle counts > 2 µm, then: CH

Lower

Upper

Full Scale

Label at SCADA

4 mA =

20 mA =

Divide by*

0

2

0

50000

>2 µm

0

50000

50

1

5

0

3200**

>5 µm

0

3200

50

2

7

0

1166**

>7 µm

0

1166

50

3

10

0

400**

>10 µm

0

400

50

4 5 6 7 * Divide by value equals the mL sample used to calculate the full scale value. ** Divisor applied from Table 4.

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Page 35 Setting Up Analog Inputs to the Sensor and Analog Outputs from the Sensor

Configuration Programming, continued 3.3 4-20 mA Output Test For 2200 PCX Instruments equipped with the optional analog I/O card, use the following test to verify the analog current scaling of 4-20 mA data acquisition instruments (SCADA, PLC, etc.) connected to the 2200 PCX Instrument. The procedure will alternately force 4 mA or 20 mA from the 2200 PCX Instrument. An ammeter in the line will verify current flow. Note: To avoid damage to internal components, always power down the 2200 PCX Instrument before making electrical connections.

1. Turn power off to the 2200 PCX Instrument under test. 2. Disconnect RS485 "COM" line connector (485A, 485B, SGND) from the 2200 PCX Instrument Interconnect Card. 3. Connect the cable between your computer serial port 1 or 2 and connector J1-RS232 on the 2200 PCX Instrument Interconnect Card. Supply power to the 2200 PCX Instrument. 4. Connect a load (e.g., PLC) as described in Section 2.2 on page 24. Attach a 100 mA DC ammeter in series with the load.

Note: The word "load" in the next step is case sensitive, that is, all letters in the word must be either all lower or all upper case characters.

5. Access the load command menu by sending the ASCII command “load <Enter>” to 2200 PCX Instrument using Windows Terminal. You will have 60 seconds after initialization (initialization takes about 5 seconds after power turn-on) to access the change menu for configuration of the 2200 PCX Instrument. 6. Type the number “7” to activate the Calibrate mode. Calibration data will begin to scroll on the monitor. Two lines of instruction while in the Calibrate mode will also scroll. They are:

SPACE — toggles analog outputs between 4 mA and 20 mA RETURN — return to main menu 7. Press the space bar once to initialize the system (begins current flow). Press the space bar again to toggle either from 4 mA to 20 mA or from 20 mA to 4 mA current source as read on the ammeter. Press the space bar repeatedly to toggle back and forth. Note: Failure to enter the "quit" command may result in erroneous calibration and address values.

8. When finished, press <Enter> to return to the main menu then end the sequence by typing “Q <Enter>”. Turn power off to 2200 PCX Instrument and remove programming cable and ammeter. 9. Return all wiring to its original configuration.

Page 36 4-20 mA Output Test

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SCADA Worksheet Setting the Analog Output Channels CH

Lower

Upper

Full Scale

0 1 2 3 4 5 6 7

Calculating Differential Values From Cumulative Values

Calculation at the SCADA CH

Lower

Upper

Full Scale

Label at SCADA

4 mA =

20 mA =

Divide by

0 1 2 3 4 5 6 7

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Page 37 SCADA Worksheet

Visit http: //www.hach.com

Section 4

Serial Port Protocol and Commands This section describes 2200 PCX Instrument operation using a computer and Vista Software. The Vista Software was designed to control 2200 PCX Instrument operation using a computer and to download count data into computer memory. If you are not using Vista, the information on the following pages will still help you understand operation of the particle counter with a computer. Your particle counter has been set up for one of two serial data communications capabilities: 1) RS232 serial interface circuitry provides for using Vista Software and a computer to control a counter, or 2) RS485 serial network circuitry provides asynchronous communications between multiple counters and a controlling computer.

4.1 Communication Protocol The 2200 PCX Instrument has the following fixed settings for serial communications:

Eight(8) data bits No parity One(1) stop bit9600 baud (RS232) The Device Select [= 128 (ID# = 00)—equivalent to Vista sensor 01] mode is selectable by means of a computer. This value can be changed as described in Changing Operating Configuration on page 29.

4.2 Command and Data Syntax The 2200 PCX Instrument responds to ASCII commands and sends a data record that varies in length based on content. The command and data syntax is defined below. Commands The following ASCII commands described below are supported by the particle counter and are case sensitive (lower-case letter is a different command from an upper-case letter): “c” Start Counting (computer controlled): The counter will begin counting without waiting for an even second boundary (quick start). Counting will continue until stopped by the computer. The count cycle should be controlled by the computer. “d” Start Counting (counter controlled): The counter will begin counting and control the count cycle based on the front-panel setting for period (sample time). “e” Stop Counting: The counter will immediately stop counting without waiting for an even second boundary. “o” Alarm Output: The analog multiplexer will set (or reset) a current-sinking output for activating (or deactivating) an external alarm. “C” Clear Buffer: The rotating buffer will be erased.

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Page 39 Serial Port Protocol and Commands

Serial Port Protocol and Commands, continued “E” Send EPROM Revision: The counter will send the EPROM number and revision. “K” Sensor Cal Curve: The calibration curve will be placed (or verified) in memory. “M” Mode Request: The counter will send its present mode. If counting, a “C” will be sent. If holding, an “H” will be sent. If stopped, an “S” will be sent. “P” Program Sizes: The program size labels will be placed (or verified) in memory. “T” Identify Model: The counter will send a four character model number (e.g., PCX[space]). “A” Send Record: The next record in the rotating buffer will be sent. When the rotating buffer is empty, a “#” will be sent. Each record is erased from the buffer as it is sent. If no count cycles have been completed since the counter was turned on, then a “#” will be sent. The record can not be sent until the current count cycle is complete. “R” Resend Record: The last record sent will be resent. Records sent prior to the last record have been permanently erased. “l” Local Mode: (for factory test purposes) The counter will be set to off-line. “U” Universal Select: The counter will respond to all commands after receiving this command, regardless of which select code is programmed into the counter. “128 to 191” Counter Select: The counter will respond to all subsequent commands when a number is sent that matches its select code, i.e. sending a number between 128 (corresponding to ID# 00) and 191 (corresponding to ID# 63). The counter is deselected, or made unresponsive to computer commands, by selecting another counter. Command Responses: The 2200 PCX Instrument will respond to all commands and select codes by sending the command character back to the computer. If the 2200 PCX Instrument does not recognize a command, it will send a “?” character. If the computer is asking for a record from an empty buffer, the 2200 PCX Instrument will send a “#” character. If the computer is asking for a record that has already been sent, the 2200 PCX Instrument will send a “#” character unless the computer uses the Resend Record command. The 2200 PCX Instrument will not send any command characters if a parity or framing error occurs. Data: Each counter can send a stream of its data records. Data records are strings of ASCII characters separated by end-of-record characters. Each data record begins with 20 characters of Counter Data. The remainder of the data record consists of Count Data for each of the six particle size ranges, Analog Input Fields data (up to eight: two 4-20 mA, six 0-5V [in mV]—Vista supports two inputs total), Calibration number (sensor calibration voltage in mV), Location number that was assigned to this counter, and a Checksum (hexadecimal number) for testing accuracy of the data transmission.

Page 40 Command and Data Syntax

57050serial.fm

Serial Port Protocol and Commands, continued The length of the string may change with the number of data points—count channels and analog inputs—available from the counter. Each data point consists of a three-character tag that identifies the type of data and six data characters, separated by spaces. In Table 6 bold characters represent a data record showing the serial communications format of a 2200 PCX Instrument with six size ranges and two analog inputs. The analog inputs are tagged with AN0 (dc current level from flow controller) and AN1 (dc current level from turbidimeter).

Table 6 Serial Communications Format Counter Data

Count Data

Analog Input Fields

Status

$

—

Date

080193

Time

081350

Period

0130

Range 1

2.0 002682

Range 2

5.0 000334

Range 3

8.0 000136

Range 4

10. 000102

Range 5

12. 000032

Range 6

15. 000009

Input A

AN0 001730

Input B

AN1 002481

Calibration

CAL 001000

Location

LOC 000007

Checksum

C/S 001676

End. msg

CRLF

The first two numbers designate particle size and the final six numbers report particle counts.

The first three characters are the tag and the remaining characters are the value for that tag.

—

Status: When translated to a binary byte, this character will indicate the status of the 2200 PCX Instrument. For example, the ASCII character “$” has a decimal value of 36, which when converted to a binary byte sets the 3rd and 6th bits:

Decoding the Status Character ASCII Character

Meaning

Decimal Equivalent

Binary Equivalent (bit 76543210)

Blank Space

no alarms

32

00100000

!

SENSOR fail alarm

33

00100001

$

alarm/count alarm

36

00100100

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Page 41 Command and Data Syntax

Serial Port Protocol and Commands, continued In this example the ASCII character “$” translates to a status byte that is indicating a “Count Alarm”. Date: Date information is carried in the 3rd through 8th characters of the record. The 2nd character is always a space, to separate the status character from the date characters. The date is arranged as MMDDYY (Month Day Year). The example in Table 6 shows the date as August 1, 1993, the day the 2200 PCX Instrument collected the data in the record. Time: Time information is carried in the 10th through the 15th characters of the record. The 9th character is always a space, to separate the date from the time. The time is arranged as HHMMSS (Hours Minutes Seconds) military time. In the example on the preceding page, the time is 8:13 A.M. and 50 seconds. Period: The period is the sample time, or the length of counting time. The period information is carried in the 17th through 20th characters. The 16th character is always a space, to separate the time in the 17th through 20th characters. The period is presented in minutes and seconds. In the example above the period was 6 seconds. When the period is controlled by the computer (e command), the period characters will be zeros. When the period (sample time) is controlled by the 2200 PCX Instrument (d command), the period characters will represent the sample time. Data 1, 2, 3, 4, 5, and 6: These characters contain data from the different programmed 2200 PCX Instrument size ranges. Each data value is preceded by a three-character tag that identifies the size range of data that follows. The tags and data are each preceded by a space character for separation. The record will contain as many tag/data elements as required (a minimum of seven and a maximum of ten). Tags: The tags contain three characters that identify the type of data that will follow. If the data is a particle count, the tag will indicate the particle size. In the example above the first tag indicates that particle count data follows for the 2.0 micron particle size range. The record data will be in the following units of measure: Particle Counts....counts Analog Inputs......millivolts

Data: The data are six numeric characters, preceded by a space. Checksum: The sum of the ASCII value of each character in the data string. Used for testing accuracy of data transmission. End of Message: The end of message characters will immediately follow the last tag/data element. There will be no separating space. The end of message characters are a carriage return and line feed.

Page 42 Command and Data Syntax

57050serial.fm

Section 5

Maintenance

5.1 Cleaning the Sensor Each on-line sensor contains a cell assembly that channels water through the laser beam. Occasionally, this cell may become dirty (or develop a film coating), affecting the normal calibration of the sensor. If this occurs, the Calibration Fail indicator (LED on the front of the unit) will illuminate. Cleaning the sensor may be accomplished without opening the NEMA enclosure. Note: Handle all chemical solutions with care. Hach recommends use of rubber gloves and goggles when handling all cleaning solutions. Treat all chemical solutions with respect.

Hach sensors are designed to make maintenance quick and easy. Hach particle counting sensors are designed to be cleaned with a specially designed brush. The cell of the sensor is constructed of material that is harder than the brush bristles; hence, the brush will not scratch or otherwise damage the cell. A variety of dilute non-abrasive cleaning solutions may be used; never use concentrated acids or bases. Concentrated solutions may damage sensor components.

5.1.1 Cleaning Frequency Cleaning requirements vary widely. Typically, sensors used to monitor clean samples such as filter effluent should be cleaned about once per month. Sensors used to monitor untreated water or clarifier effluent may need to be cleaned weekly. The best policy is to clean sensors as often as experience dictates. Excursions of high turbidity, minerals (iron, manganese, calcium, etc.) and algae or other microbiological growths may increase the need for cleaning.

5.1.2 Brush Cleaning Often, a cell becomes dirty when the sample dries out in the flow cell and leaves small amounts of residue on the flow cell surface. For this reason, Hach ships liquid particle sensors cleaned and dry. If the Calibration Fail LED lights, clean the cell using Figure 18 and the procedure below. This procedure will not damage the cell. 1. Remove the sample line quick-disconnect fitting at the inlet port (bottom) of the NEMA enclosure. Leave the quick-disconnect connected at the top. 2. Insert the cleaning brush up through the bottom flow path as shown in Figure 18. Use a gentle laboratory cleaning solution to enhance the cleaning and lubricate the brush/cell. Gently insert the brush and twirl it as it is being inserted into the bottom fitting. It will bottom out to a stop. Repeat several times, then reconnect the inlet flow connector to flush the cell. 3. Observe the Calibration Fail indicator. The indicator should go off within a few seconds. 4. If the Calibration Fail indicator remains on, perform the stain cleaning procedure in Section 5.1.3 or contact the Hach Customer Service Department.

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Page 43 Maintenance

Maintenance, continued 5.1.3 Stain Cleaning If brush cleaning is unsuccessful in restoring the sample cell and resolving the Calibration Fail condition, then the cell may have been chemically stained. Disconnect the particle sensor from the normal on-line flow path and chemically dissolve the stain as follows: •

For microbiological (green) growths, soak the cell with 30 to 50 mL of 70% or 90% isopropyl alcohol.

Dilute solutions of household chlorine bleach (5.25% available chlorine) also may be used. Dilute the bleach approximately 1:1000 (1mL bleach to 1 liter of water) to prepare a 50 mg/L cleaning solution. Stronger bleach solutions may be used to remove severe growths. Soak the cell with 30 to 50 mL of the bleach solution. Rinse with clean water. •

For red mineral deposits (iron, etc.), soak the cell with an iron reducing agent (Hach RoVer®) then flush the cell with water.

•

For calcium (white) deposits, soak the cell with white vinegar or phosphoric acid then flush the cell with water.

•

For mild manganese stains (purple or black), soak the cell with a solution (by volume) of 1/3 water, 1/3 white vinegar, and 1/3 hydrogen peroxide; flush the cell with water.

•

For severe manganese stains, soak the cell with a solution by volume of 70% white vinegar and 30% hydrogen peroxide (3% strength).

Reconnect the sensor to the flow path. Check the cell condition indicator with a fully wetted cell. If the cell indicator remains on, try the chemical soak using one of the other solutions discussed above, or try soaking for a longer period of time. Contact Hach Customer Service for additional recommendations.

Page 44 Cleaning the Sensor

57050maintenance.fm

Maintenance, continued Figure 18

Cleaning the Cell

MCA POWER

J6

I/O ALARM OUT

J8

I/O 4-20mA OUT BANK 1

J2

MCA SERIAL

J7

I/O 4-20mA OUT BANK 2

J3

ANALOG G IN 4-20Ma IN

J4

J5

J1 RS232

JP1

+15V

I_PWR

OUT4

AIN2

AGND

OUT0

OUT5

AIN3

-15V

OUT1

OUT6

AIN4

+5V

OUT2

OUT7

AIN5

DGND

OUT3

IN0

AIN6

SGND

I_RET

RET0

AIN7

485A

ALM1

IN1

AINGND

485B

ALM2

RET1

SPARE

DANGER

INVISIBLE LASER RADIATION WHEN OPEN —AVOID DIRECT EXPOSURE TO BEAM—

VOID ANTY WARRWARRAN NTY VOID ROKE IF BIF BRTY OKVO ENID WARRAN IF BROKEN

The brush should stop here.

Disconnect the Sample Inlet Line

Gently insert the brush into the Sample Inlet Port. Twirl the brush to clean.

5.2 Long-term Storage or Shipping Clean the sensor thoroughly prior to long-term storage or shipment. “Long-term” storage is defined as a period of time longer than two weeks. Do not leave water in the sensor; water spots could develop on the cell windows and may be difficult to remove. Water left in the cell during storage or shipment in cold weather may freeze and cause severe damage to the sensor. To prepare the sensor for long-term storage or shipping, clean the sensor with appropriate cleaning solutions (see Section 5.1). Then, flush approximately 30 mL of isopropyl alcohol through the sensor to remove any remaining water.

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Page 45 Long-term Storage or Shipping

Maintenance, continued 5.3 Replacing or Removing the Sensor Flow Cell The particle counter sensor has a field-replaceable sample cell. If the cell becomes damaged or coated with a substance that cleaning solutions will not remove, the sample cell can be replaced and calibration is not affected. The replacement must be done carefully and correctly to avoid damage to the sensor. Please contact Hach Service Department for replacement information.

5.4 Tubing Replacement The 2200 PCX sensor is supplied with tubing that has been specially selected to minimize accumulation of dirt and mineral deposits. Replace it only with the same tubing size and type. Change tubing as often as is necessary, depending on your sample conditions. Typically, for treated water samples (filter effluent) change the tubing once per year. For sensors used to monitor clarifier effluent, change the tubing every six months. For sensors used to monitor untreated water, replace the tubing on an approximately three-month interval.

Page 46 Replacing or Removing the Sensor Flow Cell

57050maintenance.fm

GENERAL INFORMATION

At Hach Company, customer service is an important part of every product we make. With that in mind, we have compiled the following information for your convenience.

57050gi_stop.fm

Page 47 GENERAL INFORMATION

Certification Hach Company certifies this instrument was tested thoroughly, inspected and found to meet its published specifications when it was shipped from the factory. The 2200 PCX Particle Counter has been tested and is certified as indicated to the following instrumentation standards:

Product Safety UL/CSA approved 100-115 V, 50/60 Hz external wall-style power supply or 100-240 V, 50/60 Hz external NEMA-enclosed power supply certified with the 2200 PCX to EN 61010-1 (IEC1010-1) per 73/23/EEC, supporting test records with Elliot Laboratories, Inc.

Immunity The 2200 PCX Particle Counter tested the Sensor and 100-240 V, 50/60 Hz external NEMA-enclosed power supply. EN 50081-2: 1992 (Generic Immunity Standard) per 89/336/EEC EMC: Supporting test records with Elliot Laboratories, Inc. Required Standard/s include: IEC 801-2:1991 Electro-static Discharge IEC 801-3 Radiated RF Electro-magnetic Fields IEC 801-4 Electrical Fast Transients/Burst

Emissions The 2200 PCX Particle Counter tested the Sensor and 100-240 V, 50/60 Hz external NEMA enclosed power supply. EN 50081-2 (Generic Emissions Standard) per 89/336/EEC EMC:. Supporting test records by Elliot Laboratories, Inc. (NVLAP # 200069-0). Required Standard/s include: EN 55011 (CISPR 11) Emissions, Class A Limits

Canadian Interference-causing Equipment Regulation, Chapter 1374, Class A Supporting test records with Elliot Laboratories, Inc. (NVLAP # 200069-0). This Class A digital apparatus meets all requirements of the Canadian Interference- Causing Equipment Regulations. Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.

Page 48 Certification

5705018Certification.fm

Certification, continued FCC Part 15, Class "A" Limits Supporting test records with Elliot Laboratories, Inc. (NVLAP #200069-0). This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment. This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference, in which case the user will be required to correct the interference at his own expense. The following techniques of reducing the interference problems are applied easily. 1. Disconnect the Model 2200 PCX Particle Counter from it’s power source to verify that it is or is not the source of the interference. 2. If the Model 2200 PCX Particle Counter is connected into the same outlet as the device with which it is interfering, try another outlet. 3. Move the Model 2200 PCX Particle Counter away from the device receiving the interference. 4. Reposition the receiving antenna for the device receiving the interference. 5. Try combinations of the above.

5705018Certification.fm

Page 49 Certification

How to Order By Telephone: 6:30 a.m. to 5:00 p.m. MST Monday through Friday (800) 227-HACH (800-227-4224)

By Mail: Hach Company P.O. Box 389 Loveland, Colorado 80539-0389 U.S.A.

By Fax: (970) 669-2932

Ordering information by E-mail: [email protected]

Information Required • Hach account number (if available)

• Billing address

• Your name and phone number

• Shipping address

• Purchase order number • Brief description or model number

• Catalog number • Quantity

Technical and Customer Service (U.S.A. only) Hach Technical and Customer Service Department personnel are eager to answer questions about our products and their use. Specialists in analytical methods, they are happy to put their talents to work for you. Call 1-800-227-4224 or E-mail [email protected].

International Customers Hach maintains a worldwide network of dealers and distributors. To locate the representative nearest you, send E-mail to [email protected] or contact: Hach Company World Headquarters; Loveland, Colorado, U.S.A. Telephone: (970) 669-3050; FAX: (970) 669-2932 In Canada: Hach Sales & Service Canada Ltd.; Manitoba, Canada Telephone: (204) 632-5598; FAX: (204) 694-5134

Page 50 How to Order

57050end.fm

Repair Service Authorization must be obtained from Hach Company before sending any items for repair. Please contact the HACH Service Center serving your location.

In the United States: Hach Company 100 Dayton Avenue Ames, Iowa 50010 (800) 227-4224 (U.S.A. only) Telephone: (515) 232-2533 FAX: (515) 232-1276

In Canada: Hach Sales & Service Canada Ltd. 1313 Border Street, Unit 34 Winnipeg, Manitoba R3H 0X4 (800) 665-7635 (Canada only) Telephone: (204) 632-5598 FAX: (204) 694-5134 E-mail: [email protected]

In Latin America, the Caribbean, the Far East, the Indian Subcontinent, Africa, Europe, or the Middle East: Hach Company World Headquarters, P.O. Box 389 Loveland, Colorado, 80539-0389 U.S.A. Telephone: (970) 669-3050 FAX: (970) 669-2932 E-mail: [email protected]

57050end.fm

Page 51 Repair Service

Warranty Hach warrants most products against defective materials or workmanship for at least one year from the date of shipment; longer warranties may apply to some items.

HACH WARRANTS TO THE ORIGINAL BUYER THAT HACH PRODUCTS WILL CONFORM TO ANY EXPRESS WRITTEN WARRANTY GIVEN BY HACH TO THE BUYER. EXCEPT AS EXPRESSLY SET FORTH IN THE PRECEDING SENTENCE, HACH MAKES NO WARRANTY OF ANY KIND WHATSOEVER WITH RESPECT TO ANY PRODUCTS. HACH EXPRESSLY DISCLAIMS ANY WARRANTIES IMPLIED BY LAW, INCLUDING BUT NOT BINDING TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. LIMITATION OF REMEDIES: Hach shall, at its option, replace or repair nonconforming products or refund all amounts paid by the buyer. THIS IS THE EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY. LIMITATION OF DAMAGES: IN NO EVENT SHALL HACH BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND FOR BREACH OF ANY WARRANTY, NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY, OR OTHERWISE.

This warranty applies to Hach products purchased and delivered in the United States. Catalog descriptions, pictures and specification, although accurate to the best of our knowledge, are not guarantee or warranty. For a complete description of Hach Company’s warranty policy, request a copy of our Terms and Conditions of Sale for U.S. Sales from our Customer Service Department.

Page 52 Warranty

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LIST OF REFERENCES

../../ART/hach.eps ........................................................................................................................................................... 1 ../../MASTERPG/85X11/BOILERS/Safety.eps ................................................................................................................ 5 ../../ART/hach.eps ........................................................................................................................................................... 9 ../../Art06000/06505a.eps.............................................................................................................................................. 11 ../../Art06000/06507a.eps.............................................................................................................................................. 12 ../../Art06000/06506a.eps.............................................................................................................................................. 13 ../../art/hach.eps ............................................................................................................................................................ 15 ../../Art06000/06508a.eps.............................................................................................................................................. 17 ../../Art03000/03540.eps................................................................................................................................................ 18 ../../Art06000/06510b.eps.............................................................................................................................................. 18 ../../Art06000/06509a.eps.............................................................................................................................................. 19 ../../Art06000/06511a.eps.............................................................................................................................................. 20 ../../Art06000/06512a.eps.............................................................................................................................................. 21 ../../Art06000/06512b.eps.............................................................................................................................................. 22 ../../Art06000/06516a.eps.............................................................................................................................................. 24 ../../Art06000/06513a.eps.............................................................................................................................................. 25 ../../Art06000/06514a.eps.............................................................................................................................................. 27 ../../Art06000/06515a.eps.............................................................................................................................................. 28 ../../Art06000/06517a.eps.............................................................................................................................................. 29 ../../Art06000/06518a.eps.............................................................................................................................................. 40 ../../MASTERPG/85X11/BOILERS/order.eps................................................................................................................ 45 ../../MASTERPG/85X11/BOILERS/repair.eps ............................................................................................................... 46 ../../MASTERPG/85X11/BOILERS/warranty.eps .......................................................................................................... 47 ../../Art00100/00568.eps................................................................................................................................................ 48

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