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Emerson Process Management CFA-3000, 185 Ion Selective Electrode User manual

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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
© Rosemount Analytical Inc. 2012
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
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CFA3000 ISE Analyzer
TABLE OF CONTENTS
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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
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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
1
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.
2
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.
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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
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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
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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”).
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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.
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CFA3000 ISE Analyzer
Instruction Manual
Figure 22. Mounting Main and
Reagent Cabinets
Figure 23. Attaching
Grounding Strap
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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).
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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
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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.
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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.
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CFA3000 ISE Analyzer
Instruction Manual
Figure 26. Valve Pump Assembly
Figure 27. Pump Connector
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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)
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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
/