Emerson Process Management CFA-3000 User manual

Brand: Emerson Process Management

Model: CFA-3000

Type: User manual

This manual is also suitable for

185 Ion Selective Electrode

CFA-3000

Ion Selective Electrode (ISE) Analyzer

Instruction Manual

PN 51CFA3000ISE/rev.F

December 2013

ESSENTIAL INSTRUCTIONS

READ THIS PAGE BEFORE PROCEEDING!

Your purchase from Rosemount Analytical, Inc. has

resulted in one of the finest instruments available for

your particular application. These instruments have

been designed, and tested to meet many national

and international standards. Experience indicates

that its performance is directly related to the quality

of the installation and knowledge of the user in oper

ating and maintaining the instrument. To ensure their

continued operation to the design specifications, per

sonnel should read this manual thoroughly before

proceeding with installation, commissioning, opera

tion, and maintenance of this instrument. If this

equipment is used in a manner not specified by the

manufacturer, the protection provided by it against

hazards may be impaired.

• Failure to follow the proper instructions may cause

any one of the following situations to occur: Loss

of life; personal injury; property damage; damage

to this instrument; and warranty invalidation.

• Ensure that you have received the correct model

and options from your purchase order. Verify that

this manual covers your model and options. If not,

call 18008548257 or 9497578500 to request

correct manual.

• For clarification of instructions, contact your

Rosemount representative.

• Follow all warnings, cautions, and instructions

marked on and supplied with the product.

• Use only qualified personnel to install, operate,

update, program and maintain the product.

• Educate your personnel in the proper installation,

operation, and maintenance of the product.

• Install equipment as specified in the Installation

section of this manual. Follow appropriate local

and national codes. Only connect the product to

electrical and pressure sources specified in this

manual.

• Use only factory documented components for

repair. Tampering or unauthorized substitution of

parts and procedures can affect the performance

and cause unsafe operation of your process.

• All equipment doors must be closed and protective

covers must be in place unless qualified personnel

are performing maintenance.

• If this equipment is used in a manner not specified

by the manufacturer, the protection provided by it

against hazards may be impaired.

WARNINGS

RISK OF ELECTRICAL SHOCK

Equipment protected throughout by double insulation.

• Installation of cable connections and servicing of this

product require access to shock hazard voltage levels.

• Main power and relay contacts wired to separate power

source must be disconnected before servicing.

• Do not operate or energize instrument with case open!

• Signal wiring connected in this box must be rated at least

240 V.

• Nonmetallic cable strain reliefs do not provide grounding

between conduit connections! Use grounding type bush

ings and jumper wires.

• Unused cable conduit entries must be securely sealed by

nonflammable closures to provide enclosure integrity in

compliance with personal safety and environmental protec

tion requirements. Unused conduit openings must be

sealed with NEMA 4X or IP65 conduit plugs to maintain

the ingress protection rating (NEMA 4X).

• Electrical installation must be in accordance with the

National Electrical Code (ANSI/NFPA70) and/or any

other applicable national or local codes.

• Operate only with front and rear panels fastened and in

place over terminal area.

• Safety and performance require that this instrument be

connected and properly grounded through a threewire

power source.

• Proper relay use and configuration is the responsibility of

the user.

CAUTION

This product generates, uses, and can radiate radio frequency

energy and thus can cause radio communication interference.

Improper installation, or operation, may increase such interfer

ence. As temporarily permitted by regulation, this unit has not

been tested for compliance within the limits of Class A comput

ing devices, pursuant to Subpart J of Part 15, of FCC Rules,

which are designed to provide reasonable protection against

such interference. Operation of this equipment in a residential

area may cause interference, in which case the user at his

own expense, will be required to take whatever measures may

be required to correct the interference.

WARNING

This product is not intended for use in the light

industrial, residential or commercial environments

per the instrument’s certification to EN500812.

Emerson Process Management

2400 Barranca Parkway

Irvine, CA 92606 USA

Tel: (949) 7578500

Fax: (949) 4747250

http://www.rosemountanalytical.com

CFA3000 ISE Analyzer TABLE OF CONTENTS

Instruction Manual

1.0 INTRODUCTION...........................................................................................................................1

1.1 Thoroughly Read This Manual......................................................................................................2

1.2 Analyzer Benefits...........................................................................................................................2

1.3 WARNING  Electrical Shock Hazard..........................................................................................3

2.0 INSTALLING THE ANALYZER ....................................................................................................4

2.1 Unpack Parts .................................................................................................................................4

2.2 Mount Main Cabinet ......................................................................................................................6

2.3 Mount Reagent Cabinet ................................................................................................................6

2.4 Install Waste Tube .........................................................................................................................8

2.5 Mount Overflow Sampling Assembly ............................................................................................8

2.6 Prepare Electrical Connections...................................................................................................10

2.7 Install Valve Pump Assembly ......................................................................................................11

2.8 Prepare Reagent Containers ......................................................................................................13

3.0 OPERATING THE ANALYZER ..................................................................................................14

3.1 Operational Overview..................................................................................................................14

3.2 Check Sample Stream ................................................................................................................15

3.2.1 Check Fluidics .............................................................................................................................15

3.2.2 Check Reagents..........................................................................................................................15

3.2.3 Turn On Power ............................................................................................................................15

3.2.4 Test Valve Pump Operation ........................................................................................................16

3.2.5 Set Up Stream Parameters ........................................................................................................20

3.3 Set Reagent Supply Time ..........................................................................................................22

3.4 Set Scaling Outputs.....................................................................................................................22

3.4.1 Record mV ................................................................................................................................23

3.4.2 Initiate Auto Calibration ..............................................................................................................23

3.5 Process a Grab Sample .............................................................................................................24

3.6 Manually Sample a Particular Stream .......................................................................................25

3.7 Shutdown ................................................................................................................................25

3.8 Quick Start ................................................................................................................................26

4.0 MAINTAINING THE ANALYZER ...............................................................................................27

4.1 Analyzer Equipment ....................................................................................................................27

5.0 TROUBLESHOOTING PROCEDURES....................................................................................28

5.1 Troubleshooting Chart.................................................................................................................28

5.2 Test Functions .............................................................................................................................29

6.0 REPAIR PROCEDURES ............................................................................................................31

6.1 Replace Valve Pump Assembly ..................................................................................................31

6.2 Replace Circuit Boards ...............................................................................................................32

6.3 Replace Fuses.............................................................................................................................33

6.4 Replace ISE Components...........................................................................................................33

7.0 INSTRUMENT DESCRIPTION ..................................................................................................34

7.1 Analyzer Front View ....................................................................................................................34

7.1.1 Main Cabinet ...............................................................................................................................34

7.1.2 Reagent Cabinet .........................................................................................................................34

7.2 Keypad Panel ..............................................................................................................................36

7.3 Card Cage 41 ............................................................................................................................37

7.3.1 Card Cage and Door ...................................................................................................................37

7.3.2 CPU Board 41 ............................................................................................................................37

7.3.3 Analog Board...............................................................................................................................37

7.3.4 Valve Board 41 ............................................................................................................................37

7.3.5 Power Supply Board ...................................................................................................................37

CFA3000 ISE Analyzer

TABLE OF CONTENTS

CFA3000 ISE Analyzer TABLE OF CONTENTS

Instruction Manual

7.3.6 Analog Board DIP Switches........................................................................................................39

7.4 Rear of Main Cabinet ..................................................................................................................40

7.5 Valve Pump Assembly.................................................................................................................41

7.6 Interface Ports .............................................................................................................................42

7.7 Relay Output Option....................................................................................................................42

7.8 MultiOutput Board ......................................................................................................................42

7.9 Overflow Sampling Assemblies ..................................................................................................43

8.0 ADDITIONAL FEATURES .........................................................................................................45

8.1 Chart Recorders and Data Loggers............................................................................................45

8.2 Computer Interface......................................................................................................................48

8.2.1 Data Output Format.....................................................................................................................48

8.2.2 Data Configuration.......................................................................................................................48

8.2.3 RS232C Function Commands...................................................................................................48

8.2.4 Initiating RS232C Communications to Computer .....................................................................49

8.2.5 Printer Interface ...........................................................................................................................51

8.2.6 Set Printer Internal Clock ............................................................................................................51

Appendix A. CHEMISTRIES ..................................................................................................................52

Appendix B. SPECIFICATIONS ........................................................................................................5354

Appendix C. POWER INTERCONNECT DESCRIPTION .....................................................................55

Appendix D. BYPASS FOR CALIBRATION ..........................................................................................56

Appendix E. KEYPAD HELP SHEETS .................................................................................................57

ORDERING INFORMATION....................................................................................................................63

WARRANTY ................................................................................................................................64

9.0 RETURN OF MATERIAL............................................................................................................65

TABLE OF CONTENTS (CON’T)

iii

TABLE OF CONTENTS (CON’T)

CFA3000 ISE Analyzer TABLE OF CONTENTS

Instruction Manual

LIST OF FIGURES

Figure 21 Opened Assembled Cabinet ....................................................................................5

Figure 22 Mounting Main and Reagent Cabinets ....................................................................7

Figure 23 Attaching Grounding Strap.......................................................................................7

Figure 24a Singlestream Overflow Sampling Assembly...........................................................9

Figure 24b Multistream Overflow Sampling Assembly .............................................................9

Figure 25 Input/Output Panel..................................................................................................11

Figure 26 Valve Pump Assembly............................................................................................12

Figure 27 Pump Connectors ..................................................................................................12

Figure 28 Sample Bottle Placement in Cabinet (for all methods; colors refer to

reagent straw colors)..............................................................................................13

Figure 31 Simple Block Diagram............................................................................................14

Figure 32 Numbered Positions on a SingleStream Keypad.................................................17

Figure 33 Valve Pump LED Designations..............................................................................19

Figure 34 Logic Flow for Singlestream Parameter Definition...............................................20

Figure 35 Logic Flow for Multistream Parameter Definition .................................................21

Figure 61 Remove Valve Pump Assembly.............................................................................31

Figure 62 Card Cage ..............................................................................................................32

Figure 63 ISE Reaction Cell Assembly, Electrodes ...............................................................33

Figure 71 Analyzer Front View ...............................................................................................35

Figure 72 Card Cage and Boards ..........................................................................................38

Figure 73 Analog Board DIP Switches (with #3 set in OFF position for multi..........................

stream analyzer)....................................................................................................39

Figure 74 Electrical Wiring and Components in Rear Cabinet..............................................40

Figure 75 Valve Pump Assembly............................................................................................41

Figure 76 Interface Ports ........................................................................................................42

Figure 77 "D" Connector for Relay Output.............................................................................42

Figure 78 SingleStream Overflow Sampling Assembly ........................................................43

Figure 79 Multistream Overflow Sampling Assembly (threestream option)........................44

Figure 81 Input/Output Panel .................................................................................................45

Figure 82 Typical Trace Recording with Calibration of Single Stream System .....................46

Figure 83 Typical Stream Trace Recording with Calibration of Multistream

System....................................................................................................................47

Figure 84 Numbered Positions on a SingleStream Keypad................................................49

Figure D1 Calibration Bypass Wiring......................................................................................56

Figure E1 Keypad Panel for Single Stream Option................................................................57

Figure E2 Number Positions on a SingleStream Keypad ....................................................57

Figure E3 Keypad Panel for Multistream Option...................................................................60

CFA3000 ISE Analyzer TABLE OF CONTENTS

Instruction Manual

TABLE OF CONTENTS (CON’T)

LIST OF TABLES

Table 51 Troubleshooting Chart.....................................................................................28

Table 52 Test Functions .................................................................................................29

Table 71 Main Cabinet Parts..........................................................................................34

Table 72 Reagent Cabinet Parts....................................................................................34

Table 73 Buttons/LED Functions ...................................................................................36

Table 74 Card Cage Parts .............................................................................................37

Table 75 CPU Board Components.................................................................................37

Table 76 Analog Board Components .............................................................................37

Table 77 Valve Board Components ...............................................................................37

Table 78 Power Supply Board Components..................................................................37

Table 79 Analog Board DIP Switch Positions ................................................................39

Table 710 Back Cabinet Parts .........................................................................................40

Table 711 Valve Pump Parts............................................................................................41

Table 712 Interface Ports.................................................................................................42

Table 713 Relay Output Option Pin Assignments............................................................42

Table 714 Multioutput Pin Assignments on “D” Connector.............................................42

Table 715 Overflow Sampling Assembly Parts ................................................................43

Table 81 Stream Identification Blips (SIBs)....................................................................45

Table 82 Normal Data Output Format............................................................................48

Table 83 Data Configuration ..........................................................................................48

Table 84 RS232C Pin Configuration.............................................................................48

Table 85 RS232C Commands ......................................................................................50

Table 86 Printer Port Pin Configuration .........................................................................51

Table E1 Singlestream Keypad Help Sheet.............................................................5859

Table E2 Multistream Keypad Help Sheet ...............................................................6062

Table E3 Replacement Parts .........………..……………………………………….…….63

CFA3000 MANUAL SECTION 1

INTRODUCTION

SECTION 1

INTRODUCTION

The Rosemount Analytical CFA3000 Series analyzers are designed for minimum maintenance and maximum

reliability. The touch of a button starts the microprocessorcontrolled program, calibrates the analyzer, keeps it

calibrated, and reports results directly  unattended  for months at a time. Maintenance is simplified by a modular

design with special fittings, labeled tubing, and colorcoded components.

The CFA3000 Series includes analyzers for parameters commonly measured using Ion Selective Electrode (ISE)

technology including sodium, fluoride and chloride. Sample concentration is clearly indicated on the digital display

panel, and output signals are provided to drive recorders, alarms, or other external devices such as printers or

computers. The specific chemistry of your individual analyzer is discussed in Appendix A, Chemistries, or in an

accompanying method sheet..

Your purchase from Rosemount Analytical provides you with one of the finest instruments available for your

particular application. These instruments have been designed and tested to meet many national and international

standards. Experience indicates that its performance is directly related to the quality of the installation and knowl

edge of the user in operating and maintaining the instrument.

CFA3000 ISE Analyzer

Instruction Manual

1.1 Thoroughly Read This Manual

This instruction manual describes installation, operation, and maintenance of the CFA3000 ISE Analyzer. To

ensure continued operation to the design specifications, personnel should read this manual thoroughly before

proceeding with installation, operation, or maintenance of the analyzer.

• Ensure that you have received the correct model and options from your purchase order. Verify that this

manual covers your model and options. If not, call: 18008548257 or 9497578500 to request the correct

manual.

• For any inquiries about your analyzer, contact your Rosemount Analytical representative.

• Failure to follow the documented instructions may cause any one of the following situations to occur: damage

to this instrument and warranty invalidation.

• Follow all warnings, cautions, and instructions supplied with the product.

• Only qualified personnel should install, operate, update, program, and maintain the product.

• All personnel must learn proper installation, operation, and maintenance of the product.

• Install, operate, and maintain equipment exactly as specified in this manual.

• Follow appropriate local and national codes.

• Only connect the analyzer to electrical sources specified in this manual.

• Use only components supplied by Rosemount Analytical or recommended by them for replacement.

Tampering or unauthorized substitution of parts and procedures may affect the performance of the analyzer

as well as void the warranty.

• All protective covers must be in place and cabinet panels must be closed at all times after installation or

maintenance.

1.2 Analyzer Benefits

Rosemount Analytical listened to you and decided to move away from a peristaltic pump assembly requiring

monthly replacement of the pump tubing. The new pump assembly has a vacuum/pressure valve system which

eliminates pump tubing and used significantly less reagent. Since the new valve pump swiftly moves fluids through

the analyzer, the potential for clogging within any internal component is reduced. Significantly. As a result, mainte

nance is required less frequently and procedures such as cleaning flow cells and the mixing system are no longer

required.

The upgraded software now identifies a fixed standard that allows one to change the range of the 05 V and the

420 mA output signals to your requirements.

CFA3000 ISE Analyzer

Instruction Manual

1.3 WARNING – Electrical Shock Hazard

 Installation of cable connections and servicing of this product require access to shock hazard voltage levels.

 Main power and relay contacts wired to separate power sources must be disconnected before servicing.

 Nonmetallic cable strain relief does not provide grounding between conduit connections! Use grounding

type bushings and jumper wires.

 Electrical installation must be in accordance with the National Electrical Code (ANSI/NFPA 70) and/or any

other applicable national or local codes.

 Operate only with:

1. Main console rear cover fastened.

2. Left side power terminal cover closed.

3. Keypad assembly latched closed.

 Safety and performance require that this instrument be connected and properly grounded through a three

wire power source.

 Proper configuration and use is the responsibility of the user.

Mark

ID Description

EN 610101 Safety of electrical equipment

EN 55011 Limits of RF equipment

EN 500821:92

Generic immunity from electrostatic

discharge, RF & Fast

Transient/Burst Immunity

EtL

9700516

ETL LISTED CONFORMS TO UL

STD. 31011

EtL

ETL LISTED CERTIFIED

TOCAN/CSA C22.2 No. 1010.192

CFA3000 ISE Analyzer

Instruction Manual

2.0 INSTALLING THE ANALYZER

2.1 UNPACK PARTS

When you receive your new CFA3000 analyzer, carefully unpack the items in the following list.

√ Main cabinet

√ Reagent cabinet

√ Mounting brackets

√ Overflow sampler assembly

√ Waste tube assembly

√ Accessories pack

√ Startup reagents

√ Valve pump assembly (integrated housing includes pump, labeled tubes with straws)

If any of the items are missing or damaged, contact Rosemount Analytical at: our:

Tollfree number: (800) 8548257

Direct number: (949) 7578500

Fax: (949) 8639159

Inspect each piece to confirm that there is no damage or loose parts. If anything is missing or appears broken or

damaged, contact Rosemount Analytical at the tollfree phone number above.

SECTION 2

INSTALLING THE ANALYZER

CFA3000 ISE Analyzer

Instruction Manual

After analyzer has been unpacked and all parts accounted for, install as described in following sections. Refer to

Figure 21 to view a completely installed analyzer.

Figure 21. Opened Assembled Cabinet

To mount main cabinet, proceed as follows (see Figure 22):

1. Securely attach supplied "L" brackets to wall using suitable hardware. Brackets must be anchored properly

to support 250 pounds (113.6 kg).

2. Attach main cabinet to "L" brackets using supplied four bolts, split ring washers, and hex nuts.

2.3 Mount Reagent Cabinet

To mount reagent cabinet, proceed as follows:

1. Loosen the four bolts in bottom of main cabinet.

2. Lift reagent cabinet and attach to main cabinet by placing heads of bolts into keyhole slots in top of

reagent cabinet.

3. Slide reagent cabinet back.

4. Feed grounding strap on bottom of main cabinet through notched hole in left rear corner and attach it to

stud on back of reagent cabinet (see Figure 23).

5. Tighten screws to attach reagent cabinet to main cabinet.

6. For multistream units, plug valve bank cable into positive fit receptacle at left side of cabinet (refer to

Figure 71, “Multistream Valve Panel Connector”).

CFA3000 ISE Analyzer

Instruction Manual

2.2 Mount Main Cabinet

General Recommendations

 This cabinet is not for outdoor installation.

 Environmental conditions of enclosed facility:

• Temperature:

min. 50°F to max. 113°F

(min 10°C – max. 45°C)

±10° within regulated range.

• Humidity: noncondensing

 Mount cabinet on a wall or other suitable vertical surface, at least 42” (107 cm) wide and

431/2” (111 cm) off the floor.

 Mounting surface must be able to support 250 pounds (113.6 kg).

 Allow 11/2 feet (.5 m) of clearance at left side of analyzer for access to input/output panel,

and allow for swing out for rear access.

 Allow 12” (.3 m) at right side for access to overflow tube assembly (if single stream).

Mount cabinet level, or with a slight backward tilt for proper leak detector operation.

CFA3000 ISE Analyzer

Instruction Manual

Figure 22. Mounting Main and

Reagent Cabinets

Figure 23. Attaching

Grounding Strap

CFA3000 ISE Analyzer

Instruction Manual

2.4 Install Waste Tube

To install waste tube, proceed as follows (refer to Figure 21):

1. Guide waste tube through main cabinet into reagent cabinet and out through bottom of reagent cabinet.

2. Secure plastic waste tube in clamp in lower right side of main cabinet.

3. Insert Colorimeter drain tube into waste tube.

2.5 Mount Overflow Sampling Assembly

To mount overflow sampling assembly proceed as follows (for sample configurations, see Figures 24a and 24b):

1. Mount overflow sampler assembly on outer, right side of reagent cabinet using the provided four machine

screws. For multistream units, mount overflow assembly on left side of cabinet. (If using IF100 InLine

Filter, refer to instruction sheet accompanying filter for complete installation instructions.)

2. Place ends of air vent tubing and overflow waste tubing into waste pipe.

3. Connect waste pipe to drain.

4. Supply sample stream to regulating or intake valve with 1/4” tubing (plastic or steel) as follows: Insert

tubing into tube fitting. Make sure tubing rests firmly on shoulder of fitting and nut is fingertight. Mark

nut at 6 o’clock position. While holding fitting body steady with a wrench, tighten nut 11/4 turns (go to 9

o’clock position).

5. For multistream assembly, connect sample intake line to bulkhead fitting.

6. For singlestream assembly, attach sample intake line to valve pump.

7. Make sure that sample liquid overflows into overflow chamber.

The Sample intake tube should extend into

The overflow tube approximately 1½” – 2”

3.81 –5.08 cm).

CFA3000 ISE Analyzer

Instruction Manual

Figure 24b. Multi

stream Overflow

Sampling Assembly,

threestream option)

Figure 24a. Singlestream Overflow Sampling Assembly

CFA3000 ISE Analyzer

Instruction Manual

Electrical connections are made to and from the cabinet at the input/output panel, located on the left side of the

analyzer. See Figure 25.

• Terminals are provided for ground, power supply, high/low alarms, output signals, calibration and status

relays

• Output signals  a voltage output of 05 Vdc and a floating, ungrounded current output of 420 mA are

available for remote readout or control of a process.

• Also available are contact closures for the following:

High alarm Calibration

Low Alarm Leak Alarm

To make electrical connections, proceed as follows:

1. Remove solid caps from the holes above the input/output panel by puncturing with an awl and prying

them out. (Note: remove caps only from those holes that will be used.)

2. Replace with permanent connectors.

3. Connect alarms and external computer interfaces (if any).

4. Feed 3wire power cable into analyzer through hole above the input/output panel.

5. Connect wires to appropriate contacts on Terminal Strip TB3.(See next page)

2.6 Prepare Electrical Connections

Use cable glands to hold cables securely in holes above input/output panel.

WARNING:

Connect output signals, if any before connecting the power supply.

CAUTION:

 For proper operation and for safety, electrical connections to this equipment must be

made in accordance with local or national electrical code as applicable.

 This equipment must be grounded. A qualified electrician should wire this equipment to an

electrical circuit.

CFA3000 ISE Analyzer

Instruction Manual

Figure 25.

Input/Output Panel

2.7 Install Valve Pump Assembly

The pump assembly has a vacuum pressure system that:

l Eliminates internal pump tubing

l Uses significantly less reagent

l Accurately moves fluids through the analyzer.

Perform the following procedure to install valve pump assembly:

1. Tilt pump assembly towards you.

2. Align the hinge pins and sockets, and slide assembly tray as far as possible to right (see Figure 27).

Carefully lay tray down into cabinet

3. Plug in the two connectors to the back of the cabinet (6position connector for heating bath; 9position

connector for pump) (see Figure 28).

4. Connect 16pin connector from pump assembly to small connector on CPU board (yellow ejector) above

connector for keypad panel.

5. Attach colorimeter inlet tubing on left side of pump to flowcell inlet (see Figure 21).

6. Continue with procedure depending on whether system is singlestream or multistream.

For singlestream, continue:

6. Thread tube labeled Sample" through hole 0n bottom of shelf to the right of pump assembly, and out

through hole on left side of cabinet.

7. Connect Sample tube to top of overflow sample on left side of cabinet.

8. Guide all other tubes that are attached to valve pump assembly through reagent cabinet access hole.

For multistream, continue:

6. Thread Sample tube from pump assembly through reagent access hole on the right side of the valve

pump assembly, and connect to Common (C) on #1 multistream solenoid valve on left side of reagent

cabinet.

Guide all other tubes that are attached to valve pump assembly through reagent cabinet access hole.

CFA3000 ISE Analyzer

Instruction Manual

Figure 26. Valve Pump Assembly

Figure 27. Pump Connector

CFA3000 ISE Analyzer

Instruction Manual

2.8 Prepare Reagent Containers

Prepare reagent containers as follows:

1. Remove screw caps from reagent bottles.

2. Using an awl, make one hole in foil for the reagent straw. Do not allow awl to touch reagent or standards.

3. Place Standard and Reagent bottles into reagent cabinet, as shown in Figure 28.

4. Insert colorcoded reagent straws and labeled Standard straw leading from valve pump assembly into holes

punched in corresponding bottles.

Figure 28. Sample Bottle Placement in Cabinet (for all methods; colors refer to reagent straw colors)

CFA3000 ISE Analyzer

Instruction Manual

3.0 Operating the Analyzer

3.1 Operational Overview

The analyzer uses a batch flow method for automatically analyzing a sample against a fixed standard (refer to block

diagram in Figure 31). That is, the touch of a button starts the microprocessorcontrolled program, calibrates the

analyzer, takes measurements of samples, and reports results directly  unattendedfor months at a time.

The automated monitoring program determines the sequence for activating each of the valve pumps in the valve

pump assembly to inject air and fluids into the reaction chamber. Each valve pump is associated with a specific

input via the quick disconnect connector on the side of the assembly (the number of reagents is determined by

your particular chemistry and procedure).For example, the inputs for sodium chemistry would be:

• Buffer or Ionic Strength Adjustor, reagent #1

• Sample

• Grab sample

• Baseline

• Standard

• Air

• Evacuation of chamber

• Recirculate

For a multistream system, solenoid valves in the analyzer reagent cabinet open and close streams for sampling.

When sampling, the keypad panel LEDs identify which sample stream (valve number) is associated with the dis

played value, and which valve is now open for sampling. Although the system runs samples on its own, you may

also perform a manual grab sampling or a manual calibration at any time.

Figure 31. Simple Block Diagram

Valve

Pump

Electronics

Data output

ISE

(ion selective

electrode)

Reaction

Cell

SECTION 3

OPERATING THE ANALYZER

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Model: CFA-3000

Type: User manual

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