free residual chlorine microprocessor analyzer...2 model 1054b cl section 1.0 description and...

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Free Residual Chlorine Microprocessor Analyzer

Instruction ManualPN 51-1054BCL/rev.BApril 2003

WARNINGELECTRICAL SHOCK HAZARD

Making cable connections to and servicing thisinstrument require access to shock hazard levelvoltages which can cause death or serious injury.

Be sure to disconnect all hazardous voltagebefore opening the enclosure.

Relay contacts made to separate power sourcesmust be disconnected before servicing.

Electrical installation must be in accordancewith the National Electrical Code (ANSI/NFPA-70) and/or any other applicable national or localcodes.

Unused cable conduit entries must be securelysealed by non-flammable closures to provideenclosure integrity in compliance with personalsafety and environmental protection require-ments.

The unused conduit openings need to be sealedwith NEMA 4X or IP65 conduit plugs to maintainthe ingress protection rating (IP65).

For safety and proper performance this instru-ment must be connected to a properly ground-ed three-wire power source.

Proper relay use and configuration is theresponsibility of the user.

No external connection to the instrument ofmore than 69VDC or 43V peak allowed with theexception of power and relay terminals. Any vio-lation will impair the safety protection provided

Do not operate this instrument without frontcover secured. Refer installation, operation andservicing to qualified personnel..

ESSENTIAL INSTRUCTIONSREAD THIS PAGE BEFORE PRO-

CEEDING!

Rosemount Analytical designs, manufactures, and tests itsproducts to meet many national and international stan-dards. Because these instruments are sophisticated tech-nical products, you must properly install, use, and maintainthem to ensure they continue to operate within their normalspecifications. The following instructions must be adheredto and integrated into your safety program when installing,using, and maintaining Rosemount Analytical products.Failure to follow the proper instructions may cause any oneof the following situations to occur: Loss of life; personalinjury; property damage; damage to this instrument; andwarranty invalidation.

• Read all instructions prior to installing, operating, andservicing the product. If this Instruction Manual is not thecorrect manual, telephone 1-949-757-8500 and therequested manual will be provided. Save this InstructionManual for future reference.

• If you do not understand any of the instructions, contactyour Rosemount representative for clarification.

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

• Inform and educate your personnel in the proper instal-lation, operation, and maintenance of the product.

• Install your equipment as specified in the InstallationInstructions of the appropriate Instruction Manual andper applicable local and national codes. Connect allproducts to the proper electrical and pressure sources.

• To ensure proper performance, use qualified personnelto install, operate, update, program, and maintain theproduct.

• When replacement parts are required, ensure that qual-ified people use replacement parts specified byRosemount. Unauthorized parts and procedures canaffect the product’s performance and place the safeoperation of your process at risk. Look alike substitu-tions may result in fire, electrical hazards, or improperoperation.

• Ensure that all equipment doors are closed and protec-tive covers are in place, except when maintenance isbeing performed by qualified persons, to prevent electri-cal shock and personal injury.

WARNINGThis product is not intended for use in the light industrial,residential or commercial environment, per the instru-ment’s certification to EN50081-2.

Emerson Process Management

Rosemount Analytical Inc.2400 Barranca ParkwayIrvine, CA 92606 USATel: (949) 757-8500Fax: (949) 474-7250

http://www.RAuniloc.com

© Rosemount Analytical Inc. 2001

MODEL 1054B CL TABLE OF CONTENTS

MODEL 1054B CLMICROPROCESSOR ANALYZER

TABLE OF CONTENTSSection Title Page

1.0 DESCRIPTION AND SPECIFICATIONS................................................................. 11.1 Features and Applications ....................................................................................... 11.2 Physical Specifications - General ............................................................................ 21.3 Analyzer Specifications @ 25°C.............................................................................. 21.4 Recommended Sensors .......................................................................................... 21.5 Ordering Information................................................................................................ 3

2.0 INSTALLATION........................................................................................................ 42.1 General .................................................................................................................... 42.2 Unpacking and Inspection ....................................................................................... 42.3 Installation................................................................................................................ 42.4 Electrical Connections - General ............................................................................. 102.5 Sensor Wiring .......................................................................................................... 12

3.0 DESCRIPTION OF CONTROLS ............................................................................. 143.1 Display and Keyboard Functions............................................................................. 143.2 View ......................................................................................................................... 163.3 Edit........................................................................................................................... 163.4 Configure Display .................................................................................................... 16

4.0 CONFIGURATION................................................................................................... 184.1 General ................................................................................................................... 184.2 Memory.................................................................................................................... 184.3 Start-up.................................................................................................................... 184.4 Set Function............................................................................................................. 184.5 Alarm 1 and 2 .......................................................................................................... 224.6 Interval Timer........................................................................................................... 234.7 Temperature Configuration ...................................................................................... 244.8 Current Output ......................................................................................................... 244.9 Defaults.................................................................................................................... 254.10 Input Filter................................................................................................................ 264.11 Alarm Setpoint ......................................................................................................... 264.12 Output Scale Expansion .......................................................................................... 274.13 Simulate Current Output ......................................................................................... 284.14 pH Correction........................................................................................................... 29

5.0 START UP AND CALIBRATION.............................................................................. 305.1 General .................................................................................................................... 305.2 Start-up.................................................................................................................... 305.3 Calibration................................................................................................................ 30

6.0 KEYBOARD SECURITY.......................................................................................... 34

7.0 THEORY OF OPERATION ...................................................................................... 35

8.0 DIAGNOSTICS AND TROUBLESHOOTING .......................................................... 368.1 Diagnostics .............................................................................................................. 368.2 Troubleshooting ....................................................................................................... 368.3 CPU and Power Board Replacement ...................................................................... 398.4 Maintenance ............................................................................................................ 39

9.0 RETURN OF MATERIALS....................................................................................... 42

i

LIST OF FIGURESFigure No. Title Page

2-1 Panel Mounting Cutout Information ......................................................................... 52-2 Panel Mounting Tab Installation .............................................................................. 62-3 Wall Mounting Junction Box Assembly .................................................................... 62-4 Wall Mounting Junction Box Wiring Diagram........................................................... 72-5 Pipe Mounting Installation........................................................................................ 82-6 Wall Mount Enclosure (option -20)........................................................................... 92-7 Electrical Wiring ....................................................................................................... 102-8 Wiring Sensor with Standard Cable to 1054B CL Analyzer ..................................... 122-9 Wiring Sensor with Optimum EMI/RFI Cable to 1054B CL Analyzer....................... 122-10 Wiring Sensor Model 389-01-10-54 to Model 1054B CL Analyzer .......................... 132-11 Wiring Sensor Model 396P-01-10-54 to Model 1054B CL Analyzer........................ 132-12 Wiring Sensor Model 399-07 or 399-08 to Model 1054B CL Analyzer .................... 133-1 Front Panel .............................................................................................................. 143-2 Key Labels ............................................................................................................... 163-3 Accessing Editing Function...................................................................................... 163-4 Accessing Configuration Menus .............................................................................. 164-1 Set Function Menu................................................................................................... 204-2 Alarm 1 and Alarm 2 Set Up .................................................................................... 224-3 Timer Diagram for One Cycle .................................................................................. 234-4 Interval Timer Setup................................................................................................. 234-5 Temperature Configuration Setup ............................................................................ 244-6 Current Output Setup............................................................................................... 244-7 Default Setup ........................................................................................................... 254-8 Alarm Setpoint ......................................................................................................... 264-9 Output Scale Expansion .......................................................................................... 274-10 Simulate Output Current .......................................................................................... 288-1 Three-wire 100 ohm Platinum RTD.......................................................................... 378-2 Temperature Simulation into 1054B CL Analyzer .................................................... 378-3 Electronic Bench Check Setup ................................................................................ 38

LIST OF TABLESTable No. Title Page

1-1 Replacement Parts .................................................................................................. 31-2 Accessories.............................................................................................................. 33-1 Description of Keys and Functions .......................................................................... 153-2 Information Mnemonics............................................................................................ 164-1 Configuration Worksheet.......................................................................................... 194-2 Set Mode Function Mnemonics ............................................................................... 214-3 Relay States............................................................................................................. 258-1 Fault Message Codes .............................................................................................. 368-2 RTD Resistance Values ........................................................................................... 378-3 Troubleshooting Guide............................................................................................. 40

ii

MODEL 1054B CL TABLE OF CONTENTS

1

Model 1054B CL SECTION 1.0DESCRIPTION AND SPECIFICATIONS

SECTION 1.0DESCRIPTION AND SPECIFICATIONS

1.1 FEATURES AND APPLICATIONS

The Model 1054B Microprocessor Analyzers with theappropriate sensor are designed to continuously meas-ure and control pH, ORP, conductivity, percent concen-tration, ratio, resistivity, dissolved oxygen, free residualchlorine, or dissolved ozone in industrial and municipalprocesses.

The Model 1054B Analyzer is housed in a NEMA 4X(IP65) weatherproof, corrosion-resistant, flame retardantenclosure suitable for panel, pipe, or wall mounting. Allfunctions are accessed through the front panel mem-brane keypad which features tactile feedback. Settingsmay be protected against accidental or unauthorizedchanges by a user selectable security code.Measurement data may be read at any time on either anLED or LCD display. The display shows the concentra-tion of free residual chlorine, the pH (optional), tempera-ture, alarm status, and hold and fault conditions.

The 1054B transmits isolated current outputs for chlo-rine and pH that are continuously expandable over themeasurement range. Current outputs can be configuredfor either direct or reverse action and can be displayedin milliamps or percent of full scale. Output dampeningof 0-255 seconds is user selectable. The output andrelay settings for hold and fault mode operation are alsouser selectable. The hold output function allows the userto manually control the process while the sensor is off-line for maintenance. Continuous self diagnostics alertthe operator to faults caused by analyzer electronics,RTD failure, and open wiring.

Two alarm relays are standard, and the relays can be pro-grammed for high or low activation. For Model 1054B CLAnalyzers equipped with dual output (chlorine and pH),either alarm can monitor either output. Alarm 2 can beprogrammed as a fault alarm. Both alarms feature inde-pendent setpoints, adjustable deadband or hysteresis,and time delay action. A dedicated relay with programma-ble timer function is also provided.

The Model 1054B CL Analyzer is intended for use witha membrane covered amperometric sensor.* Becausethe permeability of the membrane is a function of tem-perature, a correction is necessary when the sensor isused at a temperature different from the one at which itwas calibrated. The analyzer automatically applies thetemperature correction factor. The temperature of theprocess is measured by an RTD in the sensor and isdisplayed in either °C or °F.

An aqueous solution of free chlorine is a mixture ofhypochlorous acid and hypochlorite ion. The relativeamount of each species depends on temperature andpH. Generally, increasing the pH and temperaturereduces the amount of hypochlorous acid in the mixture.Because the response of the sensor to hypochlorousacid is greater than its response to hypochlorite, accu-rate determination of chlorine requires knowledge of thepH and temperature of the sample. If the pH is relativelyconstant, a fixed pH correction factor can be enteredinto the analyzer software. If the pH is greater than 7and fluctuates by more than 0.1 unit, continuous meas-urement of pH and automatic pH correction is neces-sary. For analyzers having automatic pH correction,two-point buffer calibration is standard.

An input filter allows the user to configure the analyzerfor rapid response or low noise.

The 1054B CL Analyzer is intended for use in applica-tions where species that react with free chlorine, suchas ammonia, certain organic amines, and bromide areabsent.

1.1 Features and Applications1.2 Physical Specifications - General1.3 Analyzer Specifications @ 25°C1.4 Recommended Sensors1.5 Ordering Information

2


1.3 ANALYZER SPECIFICATIONS @ 25°C.Measurement Range: 0-20 ppm (mg/L) chlorine,

0-14 pHResolution: 0.001 ppm free residual chlorine (as CI2)

and 0.01 pH units (3-1/2 digit display)Automatic pH Correction: 5.0 to 9.5 pHOutput Stability: ± 0.25% of span over 30 days,

non-cumulativeTemperature Compensation: Automatic or manual

0-50°C. Can be disabled if desired.Input Filter: 1-255 samplesAlarms: Dual, field selectable High/Low, High/High,

or Low/LowAlarm 2 configurable as a fault alarmTime delay: 0 to 254 secondsDual setpoints, continuously adjustableHysteresis is adjustable up to 25% of setpoint for low side/high alarm and high side/low alarm

Interval Timer: Controls dedicated relayInterval: 10 min. to 2999 days On Counts: 1 to 60On Duration: 1 to 299.9 secondsOff Duration: 1 to 299.9 secondsWait Duration: 1 to 299.9 seconds

Relay Contacts: Epoxy Sealed Form A contacts, SPST, Normally Open.

Resistive Inductive28 VDC 5.0 Amps 3.0 Amps115 VAC 5.0 Amps 3.0 Amps230 VAC 5.0 Amps 1.5 Amps

1.4 RECOMMENDED SENSORS

Chlorine: Model 499A CL Free Residual Chlorine

pH: Model 389-01-10-54Model 396P-01-10-54Model 399-07 or 399-08

1.2 PHYSICAL SPECIFICATIONS - GENERALPanel Mount Enclosure: Black, ABS, NEMA 4X, IP65,

CSA Enclosure 4144 X 144 X 192 mm(5.7 X 5.7 X 7.6 in.)

Wall Mount Enclosure: NEMA 4X, Heavy duty fiberglass, reinforced thermoplastic.356.4 X 450.1 X 180.2 mm* (14 X 17.7 X 7.1 in.*)

Front Panel: Membrane keypad with tactile feed-back and user selectable security code

Digital Display: LCD, black on greyOptional red LEDCharacter height: 18 mm (0.7 in.)

Electrical Classification: FM Class I, Div. 2, Group A thru D

28 Vdc relays - 5.0 amps resistive only150 mA - Groups A & B; 400 mA - Group C;540 mA - Group D; Ci = 0; Li = 0

CSA Class I, Div. 2, Group A thru D28 Vdc, 110 Vac & 230 Vac relays5.0 Amps resistive only

Wall Mount Enclosure: General Purpose

Power: 100 - 127 VAC, 50/60 Hz ±6%, 4.0 W200 - 253 VAC, 50/60 Hz ±6%, 4.0 W

Current Output: Isolated, 0-20 mA or 4-20 mA into600 ohms maximum load at 115/230 Vac or550 ohms maximum load at 100/200 Vac; director reverse acting; dampening: 0-255 secondsOutput 1: total free chlorine (ppm)Output 2 (optional): pH

EMI/RFI: EN 61326

LVD: EN 61010-1

Model option -20 Wall Mount Enclosure does notmeet CE requirements

Ambient Temperature: -10 to 65°C (14 to 149°F)Ambient Humidity: LED: 0-95% RH

LCD: 0-85% RHWeight/Shipping Weight: 1.0 kg/1.5 kg (3.0 lb/4.0 lb)

*Includes latches and mounting feet

3


Model 1054B Free Residual Chlorine Microprocessor Analyzer: Housed in a NEMA 4X corrosion resistant,weatherproof housing suitable for panel, pipe, or wall mounting. Standard features include digital display, isolatedcurrent outputs, dual programmable alarms, programmable timer with independent relays, and manual or automatictemperature correction for membrane permeability. Optional pH correction is available for processes in which thepH exceeds 7 and varies by more than ±0.1.

MODEL1054B MICROPROCESSOR ANALYZER (3.5 lb./1.5 kg)

1.5 ORDERING INFORMATION

PN DESCRIPTION33469-00 Enclosure Body

33470-00 Enclosure, Rear Cover

32938-00 Gasket, Front Cover

32937-00 Gasket, Rear Cover

22966-00 PCB, LCD Digital Display

23245-01 PCB, LED Digital Display

23695-22 Keyboard Overlay, LCD Version, CL

23695-23 Keyboard Overlay, LED Version, CL

23666-03 PCB, CPU, Free Residual Chlorine

23332-00 PCB, CPU, pH

23739-00 PCB, Power Supply

23740-02 PCB, Motherboard

9100157 Fuse, 0.1A, 250V, 3AB, Slo Blo

9100160 Fuse, 0.25A, 125V Axial Lead PICO II

9100189 Fuse, 0.75A, 125V Axial Lead PICO II

TABLE 1-1. Replacement Parts TABLE 1-2. Accessories

CODE Measurement

CL Free Residual Chlorine

CODE Display (Required Selection)

01 LCD Display

02 LED Display

CODE pH Correction

10 Automatic pH Correction with 2nd Output (Requires pH Sensor with preamplifier)

CODE Options

20 Wall Mount Enclosure (not CE approved)

PN DESCRIPTION

2001492 Tag, Stainless Steel, Specify Marking

23025-01 Panel Mounting Kit23053-00 Pipe Mounting Kit for 2-inch pipe,

complete; includes mounting bracket, U-bolts, and all necessary fasteners

23054-01 Wall Mounting Kit, complete; includes wall mounting bracket, junction box, conduit nipples to connect analyzer to junction box, and all necessary seals and fasteners

23268-01 Heater, 115 VAC, 50/60 Hz, 1054B(Code 20 only)

23268-02 Heater, 230 VAC, 50/60 Hz, 1054B(Code 20 only)

1054B CL 01 10 EXAMPLE

4

MODEL 1054B CL SECTION 2.0INSTALLATION

SECTION 2.0INSTALLATION AND WIRING

2.1 GENERAL. The analyzer is suitable for outdooruse. However, the analyzer should be located in anarea where temperature extremes and vibrations areminimized or absent. Installation must be performedby a trained technician.

2.2 UNPACKING AND INSPECTION. Inspect theanalyzer for shipping damage. If damage is found,notify the carrier immediately. Confirm that all itemsshown on the packing l ist are present. NotifyRosemount Analytical if items are missing.

2.3 INSTALLATION. Select a location at least onefoot from any high voltage conduit, with easy accessfor operating personnel, and not in direct sunlight.Prepare the analyzer for installation by following theprocedure for the appropriate mounting configura-tion:

2.3.1 Panel Mounting (Standard). The Model 1054Bfits into a DIN standard 137.9 mm X 137.9 mm (5.43in. X 5.43 in.) panel cutout. Refer to Figures 2-1 and2-2.1. Remove the four screws holding the front panel

assembly of the enclosure and carefully pull thefront panel and connected printed circuit boardsstraight out.

2. Align the latches as shown in Figure 2-2 andinsert the analyzer enclosure through the front ofthe panel cutout. Tighten the screws for a firm fit.Do not overtighten.

3. Replace the front panel assembly. The circuitboards must align with the slots on the inside ofthe enclosure. Tighten the four front panelscrews.

2.3.2 Wall Mounting Plate with Junction Box(PN 23054-01). Refer to Figures 2-3 and 2-4.

1. Remove the four screws holding the front panelassembly of the enclosure and carefully pull thefront panel and connected printed circuit boardsstraight out.

2. Attach the mounting bracket to the junction boxwith the hardware provided. See Figure 2-3.Wiring can be brought to the terminal strip prior tomounting the analyzer to the junction box.

3. Place the metal stiffener on the inside of the ana-lyzer and install the two 1/2 in. conduit fittingsusing two weather seals. Place the NEMA 4Xconduit plug in the center hole.

4. Attach the analyzer to the junction box using the1/2 in. conduit fittings.

5. Complete the wiring connections between theanalyzer and the junction box. Refer to Figure 2-4.

Panel Mounting Section 2.3.1

Wall Mounting Section 2.3.2

Pipe Mounting Section 2.3.3

Wall Mount Enclosure Section 2.3.4

2.1 General2.2 Unpacking and Inspection2.3 Installation2.4 Electrical Connections - General2.5 Sensor Wiring

5


DWG. NO. REV.

41054B01 A

FIGURE 2-1. Panel Mounting Cutout Information

MILLIMETERINCH

6

Model 1054B CL SECTION 2.0INSTALLATION

FIGURE 2-3. Wall Mounting Junction BoxAssembly

DWG. NO. REV.

41054A27 A

FIGURE 2-2. Panel Mounting Tab Installation

DWG. NO. REV.

41054A26 A

Install the mounting latches as shown (latches areshown oversize for clarity). If the latches are notinstalled exactly as shown, they will not work cor-rectly. The screws provided are self-tapping. Tapthe screw the full depth of the mounting latch (referto side view) leaving a gap greater than the thick-ness of the cutout panel.

7


FIGURE 2-4. Wall Mounting Junction Box Wiring Diagram

Run the sensor wiring into the left hand opening (from front view) of the junction box. Run all other wiring outof the right hand opening. The wiring diagram is for the most common sensors. See Figures 2-8 through 2-12for complete wiring information.

DWG. NO. REV.

41054B39 A

WHEN INCH AND METRIC DIMSARE GIVEN

MILLIMETERINCH

8

2.3.3 Pipe Mounting (PN 23053-00). The 2 in. pipe mounting kit includes a metal plate with a cutout for the analyz-er. Refer to Section 2.3.1 for mounting the analyzer into the plate. Mounting details are shown in Figure 2-5 (below).


FIGURE 2-5. Pipe Mounting Installation

DWG. NO. REV.

41054B02 C


MILLIMETERINCH

9

2.3.4 Wall Mount Enclosure (option -20). See Figure 2-6 (below) for installation details.


FIGURE 2-6. Wall Mount Enclosure (Option -20)

DWG. NO. REV.

41054B43 A


MILLIMETERINCH


10

2.4 ELECTRICAL CONNECTIONS-GENERAL

All electrical connections are made to terminal blocks on the rear panel (interface board) of the analyzer. To reachthe rear panel, remove the four screws securing the back cover of the enclosure. Gently pull away the cover, whichis connected to the rear panel by a continuity wire. If the wire is disconnected for any reason, reconnect it to thenearest mounting screw before replacing the cover.

Figure 2-7 (below) shows the interface panel and wiring connections.

FIGURE 2-7. Electrical Wiring

Wire the pH sensor to terminal block TB3 (see Figures 2-10, 2-11, and 2-12). Wire the chlorine sensor to TB2 (see Figures 2-8 and 2-9).

DWG. NO. REV.

41054B38 A

11


The three openings in the bottom rear of the analyzerhousing accommodate 1/2 in. conduit fittings. Lookingat the analyzer from the rear, the right opening is forsensor wiring, the center opening is for signal output,and the left opening is for power, timer, and alarmwiring. Always run sensor wiring in a separate conduitfrom power wiring.

2.4.1 Power Connections. The model 1054BCL ana-lyzer uses either 115 Vac or 230 Vac power. SeeFigure 2-7 for connections. AC power wiring should be14 gauge or greater.

2.4.2 Output Signal Wiring. Terminals 1 and 2 on TB3are for the chlorine output signal and terminals 3 and 4are for the pH signal. Maximum output load is 600ohms. For best EMI/RFI protection shield the outputcable and enclose it in an earth grounded metal con-duit. If the output wiring is connected directly to theanalyzer, connect the cable shield to terminal 8 on TB3.If the output wiring runs through a junction box, connectthe cable shield to earth ground on terminal board TBA.

2.4.3 Alarm Wiring. Connect the alarm and timer cir-cuits to terminals 1 through 6 on TB1. See Figure 2-7for details.

CAUTIONThe sensitivity and stability of the analyzerwill be impaired if the input wiring is notgrounded. DO NOT apply power to theanalyzer until all electrical connections areverified and secure. The following precau-tions are a guide using UL 508 as a safe-guard for personnel and property.

NOTEThe user must provide a means to discon-nect the main power supply in the form ofcircuit breaker or switch. The circuit break-er or the switch must be located in closeproximity to the instrument and identifiedas the disconnecting device for the instru-ment.

1. AC connections and grounding must be in com-pliance with UL 508 and/or local electrical codes.

2. The metal stiffener is required to provide supportand proper electrical continuity between conduitfittings.

3. This type 4/4X enclosure requires a conduit hubor equivalent that provides watertight connect,REF UL 508-26.10.

4. Watertight fittings/hubs that comply with therequirements of UL 514B must be used.

5. Conduit hubs must be connected to the conduitbefore the hub is connected to the enclosure,REF UL 508-26.10.

6. If the metal support plate is not used, plastic fit-tings must be used to prevent structural damageto the enclosure. Also, appropriate grounding lugand AWG conductor must be used with the plas-tic fittings.

12


2.5 SENSOR WIRING

2.5.1 Chlorine Sensor. The analyzer is recommended for use with only the 499ACL chlorine sensor. Wire the sen-sor to terminal block TB2. See Figure 2-8 for sensors having standard cable. See Figure 2-9 for sensors havingoptimum EMI/RFI cable.

Sensor cable should also be shielded. If the sensor is wired directly to the analyzer, connect the outer shield of thesensor cable to earth ground using terminal 8 on TB2. If the sensor is wired through a wall mounting junction box,connect the outer shield to the earth ground terminal of TBA. If the outer shield of the cable is metal braid, use ametal cable gland fitting to connect the braid to earth ground by way of the instrument case.

FIGURE 2-8. Wiring Sensor with Standard Cable to 1054B CL Analyzer

FIGURE 2-9. Wiring Sensor with Optimum EMI/RFI Cable to 1054B CL Analyzer

13


2.5.2 pH Sensor. Wire the pH sensor to terminal blockTB3. The table lists recommended pH sensors and thefigure number of the wiring diagram. The pH sensormust have a preamplifier compatible with the Model1054B.

Insulate unused leads and connect them to the cableto prevent shorted connections.

pH Sensor Wiring Diagram

389-01-10-54 Figure 2-10

396P-01-10-54 Figure 2-11

399-07 or 399-08 Figure 2-12

FIGURE 2-10. Wiring Sensor Model 389-01-10-54 to Model 1054B CL Analyzer

FIGURE 2-11. Wiring Sensor Model 396P-01-10-54 to Model 1054B CL Analyzer

FIGURE 2-12. Wiring Sensor Model 399-07 or 399-08 to Model 1054B CL Analyzer

14

2. Set alarm points, generate specific output currentsfor testing, set zero and full-scale outputs, and cal-ibrate concentration, pH and temperature.

3. Select temperature in °C or °F, configure alarms(setting an alarm and configuring an alarm are dif-ferent operations [see Section 4.0]), set timerfunctions, establish a password, and set the cur-rent output range.

Each key in the top row of the keypad has dual func-tions. Pressing the key once displays the value identi-fied by the lower (white on blue) label. Pressing the keytwice in rapid succession displays the value or acti-vates the function identified by the upper (blue onwhite) label. Two keys in the bottom row also have dualfunctions. The use of these keys is explained in latersections. Table 3-1 summarizes the values and func-tions associated with each key.

MODEL 1054B CL SECTION 3.0DESCRIPTION OF CONTROLS

SECTION 3.0DESCRIPTION OF CONTROLS

3.1 DISPLAY AND KEYBOARD FUNCTIONS. Figure 3-1shows the front panel of the 1054B CL MicroprocessorAnalyzer. The front panel consists of a single line dis-play with information flags and an eight key membranekeypad. Readings and instrument settings and themnemonics that guide the user through configuring theinstrument appear in the main display. The flags at thesides of the display show whether an alarm relay is acti-vated or deactivated, indicate hold and fault conditions,and show the units of the value being displayed. Asexplained in Figure 3-1 a steady flag and a flashing flaghave different meanings.

The operations of the 1054B Microprocessor Analyzerare controlled by the eight keys shown in Figure 3-1.The keys are used to:

1. Display values other than the primary value (PV).Free residual chlorine concentration is the primaryvalue.

FIGURE 3-1. Front Panel

DWG. NO. REV.

41054B37 A

3.1 Display and Keyboard Functions3.2 View3.3 Edit3.4 Configure Display

15


Displays the present output in mA or percent of fullscale.

Pressing SELECT with the output showing causesthe analyzer to simulate an output current

Displays the value corresponding to the low cur-rent (4 or 0 mA) output.

Pressing SELECT with the value showing allowsthe value to be changed.

Displays the value corresponding to the full scale(20 mA) output .

Pressing SELECT with the value showing allowsthe value to be changed.

1. Selects a sub-menu when a mnemonic is displayed.2. Shifts to next digit when a number is displayed.

1. Moves to the next item in the menu when a mnemonic is displayed.

2. Pressing once increases the flashing digit by one.3. Holding the key down autoscrolls the display.

1. Pressing key twice in rapid succession allows access to the set function menu.

2. Enters displayed value into memory.3. Enters displayed mnemonic into memory.

Displays Alarm 1 setpoint.

Pressing SELECT with the setpointshowing allows the setpoint to bechanged.

Displays the concentration of free resid-ual chlorine.

Pressing SELECT with the concentrationshowing allows one point standardizationof the analyzer.

Places the analyzer in hold or removes the analyz-er from hold. When the analyzer is in hold, the dis-play shows the present chlorine concentration, butthe output remains at the value it was when holdwas initiated.

Displays the process temperature (°C or °F).

Pressing SELECT with temperatureshowing allows the temperature to bescalibrated.

Displays Alarm 2 setpoint.

Pressing SELECT with the setpointshowing allows the setpoint to bechanged.

Display pH.Pressing SELECT with pH showing allows the pH reading to be changed.Pressing SCROLL (��) with pH showing allows the automatic pH correction feature to be setand permits the pH sensor to be calibrated.

HOLD

TEMP

OUTPUT

PV

ZERO

ALARM 1

F.S.

ALARM 2

CAL

�SELECT

�

ACCESS

ENTER

SECOND FUNCTION (PRESS TWICE QUICKLY)MAIN FUNCTION (PRESS ONCE)

TABLE 3-1. Description of Keys and Functions.

16


3.2 VIEW. To view a measurement or a setting withoutchanging its value, press the appropriate key in the toprow. Press once to display the value of the lower label.Press twice in rapid succession to display the value ofthe upper label (see Figure 3-2).

In some cases, an information mnemonic appearsmomentarily before the value is displayed. Table 3-2explains the meaning of the information mnemonics.

TABLE 3-2. Information Mnemonics

Mnemonic Description Mnemonic Description

�� Adjust value �� Access locked – enter security code�� Incorrect entry � Displays FRC output in percent�� Buffer 1

Displays pH output in percent�� Buffer 2 � pH display (measured process pH)�� Displays FRC output value in mA �� Free residual chlorine display�

Displays pH output value in mA �� Set mode�� Display output (FRC) �� Simulates FRC output (mA)�� Display output (pH) �� Simulates pH output (mA)�� Fixed pH display (manual pH input) �� Simulates FRC output (%)�� Analyzer in hold mode � Simulates pH output (%)�� Displays 20 mA setpoint (FRC) �� Displays pH electrode slope�� Displays 20 mA setpoint (pH) �� Displays Alarm 1 setpoint� � � Interval timer activated � Displays Alarm 2 setpoint�� Displays 0 or 4 mA setpoint (FRC) �� Standardize�� Displays 0 or 4 mA setpoint (pH)

3.3 EDIT. If desired, the values accessed by the keys inthe upper row of the keypad can be edited. Use theSELECT, SCROLL (�), SHIFT (�), and ENTER keysto change a displayed value. With the value to bechanged showing in the display, press SELECT. Aninformation mnemonic appears momentarily, then thenumber reappears with the right hand digit flashing toindicate that the number can be changed (see Figure 3-3). Pressing the � key increases the value of the blink-ing digit by one unit. To move to the next digit, use the� key. To place the new value in memory, pressENTER. Refer to Table 3-2 for an explanation of theinformation mnemonics.

Table 3-1 summarizes the functions of the edit keys.

1. Press key. 2. �� shows briefly. 3. Numbers show with digit flashing.

1. Press key twice.2. �� shows briefly.3. Zero point is displayed.

SELECT

ZERO

ALARM1

FIGURE 3-3. Accessing Editing Function.

�

FIGURE 3-2. Key Labels.

Single press of the key displays the presentfree residual chlorine reading. Read only.

OUTPUT

PV

Quick double press of the key displays thepresent output in mA or percent of fullscale. Read only.

17

3.4 CONFIGURE DISPLAY. The display and analyzerfunctions are configured using the set function program.To enter the program, quickly double press theACCESS/ENTER key (see Figure 3-4).

Figure 4-1 on page 20 shows the main menu, the sub-menus, and the shorthand labels or mnemonicsassigned to each item in the menus. Table 4-2 on page24 explains the meaning of each mnemonic. The setfunction is used to configure alarms, set the intervaltimer, change the units in which temperature is dis-played, configure the output signal, tell the analyzerwhat to do during fault or hold conditions, filter the inputsignal, and set a security code.

To move through the main menu press and hold theSCROLL (�) key. When the desired item is displayed,release the key. Most items in the main menu have asub-menu associated with them. To enter a sub-menu,press SELECT and use the SCROLL (�) key to movethrough the sub-menu. To choose an item in a sub-menu, press SELECT. If the item selected can be edit-ed, the screen will change to a flashing display. If digitsare showing, use the SCROLL (�) key to change num-ber and the SHIFT (�) key to move to the next digit.Press ENTER to place the value in memory. If a wordor a mnemonic is flashing, indicating it can be changedto a different mnemonic, use the SCROLL (�) key todisplay the desired setting and press ENTER to placethe selection in memory.

To leave a menu or sub-menu without entering the edit-ed value, press PV. The display will change to the con-centration of free residual chlorine in the sample.


1. Press twice in rapid succession.

2. �� appears momentarily to confirmentry into set function menu.

3. First menu item is displayed.Analyzer now ready to configure.

4. Use the SCROLL key to move throughthe menus.

ACCESS

ENTER

��

��

�

FIGURE 3-4. Accessing Configuration Menus

18

4.1 GENERAL. This section explains how to configurethe Model 1054 B CL Analyzer to a specific application.

NOTE

The analyzer is configured at the factory forthe best general use. Table 4-1 lists the fac-tory settings. Use the worksheet (Table 4-1)to record your configuration. The configura-tion can be done in any order. However, toreduce the chance of accidentally omittingimportant settings, it is best to configure theanalyzer in the order presented in the manu-al and on the worksheet.

4.2 MEMORY. The Model 1054B CL Analyzer can beconfigured before or after installation. Configurationsettings are written into non-volatile memory andremain in memory when power is removed.

4.3 START-UP. If the sensor is not connected, the ana-lyzer may start up flashing a fault mnemonic. Themnemonic will be suppressed when the analyzer is inthe set function mode; however, the fault flag will con-tinue to flash.

NOTE

To shorten sensor warmup time, wire thesensor to the analyzer as soon as possible.

4.4 SET FUNCTION. Enter the set function by press-ing the ACCESS/ENTER key twice in rapid succes-sion. The mnemonic �� appears momentarily, con-firming that the analyzer is in the set mode. The displaythen changes to the first item in the main menu, ��.

NOTE

If �� is displayed instead of ��, the key-pad is locked, and the security code mustbe keyed in to gain access to the set func-tion menus. Refer to Section 6.0.

The first three items in the menu, ��, ��, and �� are not used for configuring the analyzer. Instead,selecting �� displays the current being generated in thesensor, selecting �� allows the approximate sensitivi-ty (current per ppm) of the sensor to be entered, andselecting �� sets the present current equal to zeroconcentration.

Figure 4-1 is a map of the set function program. Theprogram contains a main menu, shown on the left handside of the figure, and several sub-menus connected toitems in the main menu. The menu items are identifiedby mnemonics. Refer to Table 4-2 for an explanation ofeach mnemonic. Selecting an item in the main menugives access to the associated sub-menu. For exam-ple, choosing �� in the main menu moves the userinto a sub-menu containing ��, �, and �� Selecting�� or � in this sub-menu gives access to a deepersub-menu containing ��, ��, ��, and ��. Selecting�� from this menu gives a mnemonic display that canbe edited (� � � � � ��). Selecting any other item gives anumeric display for editing.

Model 1054B CL SECTION 4.0CONFIGURATION

SECTION 4.0CONFIGURATION

4.1 General4.2 Memory4.3 Start-Up4.4 Set Function4.5 Alarm 1 and 24.6 Interval Timer4.7 Temperature Configuration4.8 Current Output4.9 Defaults4.10 Input Filter4.11 Alarm Setpoint4.12 Output Scale Expansion4.13 Simulate Current Output4.14 pH Correction

19


FACTORY SET USER SETA. Alarm 1 Setup (��)1. Alarm Configuration (��) �� _________2. High or Low (��) (� � /��) �� _________3. Hysteresis (��) 0-25% 0.00 _________4. Delay Time On (��) 0-255 sec 000 sec _________5. Delay Time Off (��) 0-255 sec 000 sec _________

B. Alarm 2 Setup (��

)1. Alarm Configuration (��/�/��/��) �� _________2. High or Low (��) (�� / ��) � � _________3. Hysteresis (��) 0-25% 0.00% _________4. Delay Time On (��) 0-255 sec 000 sec _________5. Delay Time Off (��) 0-255 sec 000 sec _________

C. Interval Timer (��)1. Active Status (��) (��/��) �� _________2. Interval Time (��) minimum 10 minutes 1 Day _________3. Count (��) 1 to 60 5 _________4. On Time (��) 0 to 299 sec 1 sec _________5. Off Time (��) 0 to 299 sec 1 sec _________6. Duration (��) 0 to 299 sec 2 sec _________

D. Temperature Setup (�-��)1. Display Temperature (��) (��/��) �� _________2. Automatic TC (��) (��/��) �� _________

Manual Temp. Value 0°C to 50°C _________

E. Current Output Setup (��

)1. mA Output (��) (��/��) �� _________2. Display Current Output (��) (�/��) �� _________3. Dampen Current Output (��) 0 to 255 sec 000 sec _________

F. Default Setup (��)1. Relay 1 Default (��) (��/��/��) �� _________2. Relay 2 Default (��) (��/��/��) �� _________3. �� Output Default (��) (��/��) �� _________4. � Output Default (��) (��/��) �� _________

G. Keyboard Security Setup (��)1. Keyboard Security Required 001-999 – _________2. Keyboard Security Not Required 000 000 _________

H. Alarm Setpoints1. Alarm 1 (��) 0-20 ppm or 0-14 pH 0 ppm _________2. Alarm 2 (�) 0-20 ppm or 0-14 pH 20 ppm _________

I. Current Outputs1. Zero (0 or 4 mA) (��/��) 0-20 ppm or 0-14 pH 0 ppm or 0 pH _________2. F.S. (Full Scale) (20 mA) (� � � / � � ) 0-20 ppm or 0-14 pH 20 ppm or 14 pH _________

TABLE 4-1. Configuration Worksheet

To move around in the main menu or in a sub-menu,press the SCROLL (�) key. To choose an item in themenu, press the SELECT key. If pressing SELECTproduces a flashing display, the mnemonic or num-ber shown can be changed. Press the SCROLL (�)and SHIFT (�) keys to change a number; press theSCROLL (�) key to change a mnemonic. To place

the value in memory, press ENTER. After an editedvalue has been stored, the display returns to the itemin the sub-menu that allowed access to the value. Forexample, selecting �� from the sub-menu attachedto ��, allows access to a number whose value canbe changed. After the number has been edited andstored in memory, the display returns to ��.

20


FIGURE 4-1. Set Function Menu

��

�*

��

��

��

��

��

��*

��

��

�*

��

��

��

�t

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

�

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

* Not available unless the optionalpH board has been installed

��

��

��

��

� �

��

21


�� Alarm 1 setup

�� Alarm 2 setup

�� Automatic pH adjustment

�� Automatic temperature compensation�� Temperature °C

�� Security code

�� Timer count

�� Configure current output

�� Configure fault output 1 (FRC)

�� Configure fault output 2 (pH)

�� Default current setpoint

�� Days

�� Fault configuration

�� Display output

�� Display temperature

�� Display output in mA

�� Relay delay off time

�� Relay delay on time

�� Dampen outputs

�� LCD/LED display test

�� Timer duration �� Temperature °F

�� Use alarm as fault alarm

�� Relay action – high

�� Alarm logic

�� Hours

�� Hysteresis

�� Sensor input current

�� Interval period

�� Timer setup

�� Relay action – low

�� No action on fault

�� pH CPU PCB not installed

�� Alarm not used

�� Function off

�� Timer on time

�� Use alarm as process alarm

�� Function on

�� Timer off time

�� Configure output 1 (FRC)

�� Configure output 2 (pH)

� Display output in percent

�� Relay 1 fault setup

�� Relay 2 fault setup

�� Seconds

�� Show fault history

�� Temperature configuration

�� Timer – time remaining

�� Timer status

�� Software version

�� Minutes

�� 4mA to 20mA output

�� 0mA to 20mA output

�� Zero sensor

TABLE 4-2.Set Function Mnemonics

22

4.5 ALARM 1 AND 2. The alarms can be configured toperform on - off process control. Selecting �� or ��allows alarm 1 or alarm 2, respectively, to be configured.

A. Alarm for Free Residual Chlorine. Select �� if thealarm is to monitor the concentration of free residualchlorine. See steps E through H for further alarm con-figuration.

B. Alarm for pH. Select � if the alarm is to monitorpH. See steps E through H for further alarm configura-tion.

C. Fault (Alarm 2 Only). Selecting �� makes Alarm 2a fault alarm. Relay 2 energizes when the analyzersenses a fault condition.

D. Off. Select �� if the alarm is not to be used or totemporarily disable the alarm. Alarm setpoints will dis-play �� if this item is selected.

E. Alarm Logic. Select �� to set high or low alarmlogic. �� act ivates the alarm when the reading isgreater than the setpoint value. �� activates the alarmwhen the reading is less than the setpoint value.

F. Relay Hysteresis. Select �� to set the hysteresis ordead band. Hysteresis is the difference between thealarm setpoint and the reading past the setpoint atwhich the relay deactivates. Hysteresis may be setbetween 0 and 25% of the setpoint. Use hysteresiswhen a specific chlorine concentration should bereached before the alarm deactivates.


G. Delay On Time. Select �� to set the delay on time.Delay on time is the time between an alarm setpointbeing reached and the relay activating. The delay maybe set between 0 and 255 seconds. An alarm staterestarts the time from zero.

H. Delay Off Time. Select �� to set the delay off time.Delay off time is the time between an alarm setpointbeing cleared and a relay deactivating. The delay maybe set between 0 and 255 seconds. An alarm staterestarts the time from zero.

4.5.1 Alarm Setup (��/��

). Refer to Figure 4-2.1. Enter the set function menu by double pressing

the ACCESS/ENTER key. 2. SCROLL (�) until �� or �� appears in the dis-

play.3. Press SELECT to move into the sub-menu. ��, �,

��, or �� (Alarm 2 only) will be displayed.4. SCROLL (�) until the desired item appears, then

press SELECT.5. If �� was selected, the display will show ��!.

Press the ENTER key to return to �� or ��(whichever alarm was being configured). Skip toStep 11.If �� or � was selected, the display will show�� or � momentarily, then change to ��. Go toStep 6.If �� was selected, the display will show ��.Press the ENTER key to return to ��. Go to Step 11.

6. With �� showing in the display, press SELECT.� � or �� will appear as a flashing display.

7. SCROLL (�) to the desired setting and pressENTER to store the setting in memory. The dis-play will return to ��. To make changes to therelay activation logic, proceed to Step 8, other-wise go to Step 11.

8. SCROLL (� ) to display ��, ��, or �� thenSELECT the desired item. A flashing numeric dis-play will appear, indicating that a number isrequired.

9. Use the SCROLL (�) and SHIFT (�) keys tochange the display to the desired value.

10. Press ENTER to store the value in memory. Theanalyzer will acknowledge, and the display will returnto the mnemonic that permitted access to the value.Repeat Step 8 if further changes are desired.

11. Repeat Steps 3 through 10 to configure the otheralarm.

12. To return to the top menu of the set functionmenu, press the ACCESS/ENTER key.

��

�

��

��

�

��

��

��

��

��

��

��

��

��

��

��

��

Figure 4-2. Alarm 1 and Alarm 2 Setup.

23

4.6 INTERVAL TIMER. Select �� to set the intervaltimer relay logic. The timer can be used to activateand control a sensor cleaner. Refer to Figure 4-3 for anexplanation of the terms used.

A. Interval Timer Enable/Disable. Select �� toenable the interval cycle (��) or disable the intervalcycle (��).

B. Interval Period. Select �� to set the amount oftime between control cycles (see Figure 4-3). ��opens a sub-menu that asks for time in �� for sec-onds, �� for minutes, �� for hours, and �� for days.The recommended minimum interval is 10 minutes.

C. Relay Activations Per Cycle. Select �� to enterthe number of times the relay activates per cycle. Therange is 1 to 60.

D. Relay Activation Duration. Select �� to enter theamount of time the relay remains on each time it acti-vates. The range is 0.1 to 299.9 seconds.

E. Relay Deactivation Duration. Select �� to set theamount of time the relay remains deactivated betweeneach on-period during the cycle. Deactivation time isvalid only when �� is 2 or greater. The range is 0.1 to299.9 seconds.

F. Sensor Recovery Time. Select �� to set thelength of time between the end of the last on-periodand the end of the control cycle. The recovery timegives the sensor time to restabilize before the analyz-er returns to on-line operation. Recovery time may beset between 0 and 299 seconds.

G. Interval Time Remaining. Select �� to display thetime remaining before the next cycle starts. If �� isselected during the control cycle, display will show ��.

NOTEThe Model 1054B CL is placed on HOLDduring the control cycle (from first on-periodthrough the sensor recovery time). The ana-lyzer simulates a fault condition and brieflyshows �� every eight seconds. The displaycontinues to show the measured value.


4.6.1 Interval Timer Set Up (��). Refer to Figure 4-4.1. Enter the set function menu by double pressing

the ACCESS/ENTER key.

2. SCROLL (�) until �� appears in the display.3. Press SELECT to move to the next menu level. The

display will show ��. Press the SELECT key again.4. SCROLL (� ) to display �� or �� and press

ENTER to store the desired setting in memory. Ifthe interval timer was selected, go to Step 5, other-wise go to Step 10.

5. Press the SCROLL (�) key once to display ��,then press the SELECT key. The display willchange to ��. SCROLL (�) until the desiredunit, minutes (��) hours (��), or days (��)appears in the display. Press SELECT. The dis-play will change to a numeric value with the righthand digit flashing.

6. Use the SCROLL (�) and the SHIFT (�) keysto change the displayed number to the desiredvalue. ENTER the number into memory.

7. Repeat steps 5 and 6 if needed. For example, if thedesired interval is 6.5 hours, enter 30 �� and 6 ��.

8. Press the ENTER key again to return to the maintimer menu. SCROLL (�) to the next desireditem and press SELECT.

9. Selecting any of the remaining menu items (��,��, ��, and ��) causes the display to show anumeric value. Use the SCROLL (�) and SHIFT(�) keys to change the displayed number to thedesired value and ENTER the new value intomemory. Continue until all the settings have beenmade.

10. Press the ENTER key to return to the main menu.

RELAYON

RELAYOFF

TIME

��

��

��

��

��

�� = 2

��

��

��

��

��

��

��

��

��

��

��

��

��

��

��

Figure 4-3. Timer Diagram for One Cycle

Figure 4-4. Interval Timer Setup

24

4.7 TEMPERATURE CONFIGURATION. Select ��for temperature reading and compensation choices.

A. Temperature Display. Select �� to display tem-perature in °C or °F.

B. Automatic Temperature Compensation. Select�t to enable or disable automatic temperature com-pensation. The 1054B CL Analyzer uses a membrane-covered amperometric sensor. Because the permeabil-ity of the membrane increases about 3%/°C, tempera-ture compensation is critical if the measurement andcalibration temperatures are different. When �� isselected, the analyzer uses the temperature input fromthe sensor for temperature compensation. When �� isselected, the analyzer uses the value entered by theuser. Turning off the automatic temperature compen-sation, i.e., placing the analyzer in manual temperaturecompensation, is useful only if the temperature sensoris faulty and the calibration and measurement temper-atures differ by at most 1 or 2 °C. Selecting �� dis-ables temperature specific fault messages (refer toSection 8.1).

4.7.1 Temperature Setup (��). Refer to Figure 4-5.

1. Enter the set function menu by double pressing theACCESS/ENTER key.

2. SCROLL (�) until �� appears in the display.

3. Press SELECT to move to the next menu level.�� will show the display.

4. SCROLL (� ) to display desired item, thenSELECT it.

5. If �� is selected, the display will flash �� or ��.SCROLL (�) until the desired unit appears in thedisplay. Press ENTER to store the selection intomemory. The display will return to ��.

6. If �� is selected, the display will flash �� or ��.SCROLL (�) and ENTER the desired temperaturecompensation into memory. Choosing �� causes thedisplay to return to ��. Choosing �� causes aflashing number to be displayed. Use the

SCROLL (�) and SHIFT (�) keys to change thedisplay to the desired temperature and pressENTER. The display returns to ��.

7. Press the ENTER key to return to the main menu.

4.8 CURRENT OUTPUT. Select �� to configure thecurrent output for free residual chlorine. Select �� toconfigure the output for pH. Note that �� is availableonly if the pH board has been installed. See Figure 4-6.

A. Output Dampening. Select �� to dampen the analyz-er output. Dampening reduces the apparent noise butincreases the response time of the output. The dampeningfeature averages the signal for a set period of time(between 0 and 255 seconds) and changes the output byan amount equal to 63% of change between the presentand previous sampling period.

B. mA Output Range. Select �� to set the output sig-nal to 0-20 mA (��) or to 4-20 mA (��).

C. Display Output. Select �� to display the output inmA (��) or in percent of full scale (�).

4.8.1 Output Setup (��/��

). Refer to Figure 4-6.



3. Press SELECT to move to the next menu level.�� will displayed.

4. SCROLL (�) then SELECT desired item.

5. If �� is selected, a numeric display will flash to indi-cate that a value is required. Use the SCROLL (�)and SHIFT (�) keys to change the display to thedesired value. Press ENTER to place the value inmemory.


��

��

��

��

��

��

��

��

��

��

��

��

��

�

��

��

��

��

��Figure 4-5. Temperature Configuration Setup

Figure 4-6. Current Output Setup

25


��

��

��

6. If �� or �� is selected, SCROLL (�) to thedesired mnemonic and press ENTER to store it inmemory.

7. Press ENTER to return to the main menu andSCROLL (� ) until �� shows in the display.Repeat steps 5 and 6 to configure the pH output.�� is available only if the pH correction boardhas been installed in the analyzer.

8. Press the ENTER key to return to the mainmenu.

4.9 DEFAULTS. Select �� to configure default set-tings during faults or hold status. See Table 8-1 for alisting of the fault conditions that can be diagnosed bythe analyzer.

A. Relay 1 and 2. �� is relay 1 and �� is relay 2.The relays can be set to activate (��), deactivate(��), or hold present status (��). Table 4-3 describeshow to configure the relays for various fault or holdconditions. For example, for relay 1 to activate whenthe analyzer is in hold, both alarm 1 and relay 1 mustbe on.

B. Current Output. �� sets the value to which thecurrent at output 1 goes and �� sets the value towhich the current at output 2 goes when the analyzeris in hold or senses a fault. To hold the output currentat the last process value, choose ��. To send the out-put current to a specified value, chose ��; �� isprobably the better choice.

C. Fault History. Selecting �� causes all the faultsdetected during the most recent event to be displayedone at a time. Several faults occurring at the sametime are considered to be one fault event. To view theprevious fault event, press the SCROLL (�) key. Toclear the �� history, press ENTER.

4.9.1 Default Setup (��). Refer to Figure 4-7.

1. Enter the set function menu by double pressingthe ACCESS/ENTER key.


3. Press SELECT to move to the next menu level.�� will show in the display.

4. To set default relay 1, SELECT ��.

5. SCROLL (� ) to ��, ��, or ��, and pressSELECT to enter the desired mnemonic.

6. Repeat Steps 4 and 5 for relay 2.

7. To set the default current for output 1, SCROLL(�) to �� and SELECT it.

8. SELECT �� or ��. Choosing �� causes thedisplay to change to a flashing number. Use theSCROLL (�) and SHIFT (�) keys to changethe display to the desired value. Press ENTER toplace the value in memory.

9. To set the default current for output 2, repeatsteps 7 and 8.

10. Press the ENTER key to return to the mainmenu.

ANALYZER CONDITION

NORMAL HOLD FAULT

��/�� setting ��/��setting ��/��setting

��

(Alarm 2 (Alarm 2 (Alarm 2only) only) only)

�� PV dtmns – – + – – + – +

�� PV dtmns – – – – – – – +

�� PV dtmns – – PV dtmns – – PV dtmns – +

Defaultsetting��

PV dtmns : Process value determines the alarm state.+ : means the relay activates– : means the relay does not activate

TABLE 4-3. Relay States for Various Analyzer Conditions and Alarm/Default Configurations

��

��

��

FIGURE 4-7. Default Setup

��

��

��

��

��

��

��

26

4.10 INPUT FILTER. The input filter (��) compen-sates for noise by averaging a given number samplesof the input signal. Increasing the sample numberreduces noise but increases the response time (seeSection 7.1 for more information).

4.10.1 Filter Response Setting.



3. Press SELECT. A numeric display appears withthe right hand digit flashing.

4. Use the SCROLL (�) and SHIFT (�) keys tochange the display to the desired number of sam-ples.

5. Press ENTER to place the number in memory.

4.11 ALARM SETPOINT. Configure the analyzer asdescribed in sections 4.5 through 4.10 beforeprogramming the alarm setpoints. Refer toFigure 4-8.

1. Press the PV key to ensure the analyzer is not inthe set function menu.

2. Press the ZERO/ALARM 1 or F.S./ALARM 2 key.�� for alarm 1 or � for alarm 2 will show briefly,followed by the present alarm setpoint.

NOTEIf the alarm was set to OFF or, in thecase of alarm 2, to FAULT during con-figuration, the analyzer will display ��or �� respectively when the ALARMkey is pressed.

3. To change the alarm setpoint, press SELECT.�� will show briefly followed by a numeric dis-play with right hand digit flashing.

4. Use the SCROLL (�) and SHIFT (�) keys tochange the display to the desired setpoint.

5. Press ENTER to place the new value in memory.The display will show �� (or �) briefly followedby the new setpoint.

6. To program the second alarm setpoint repeatSteps 2 through 5.

NOTERelays are normally open (N.O.), but they canbe changed to normally closed (N.C.). Locatethe relay to be changed. K1 is relay 1, K2 isrelay 2, and K3 is relay 3. For the relay selected,cut the conductor at the bowtie on the reverseside of the power supply board. For relay 1, sol-der a jumper between the center terminal andW4. For relay 2, solder a jumper between thecenter terminal and W6. For relay 3, solder ajumper between the center terminal and W8.

ACCESS

ENTER

ZERO

ALARM1

F.S.

ALARM2

�

�

SELECT

�

SELECT

PressOnce

PressOnce

DisplaysBriefly

DisplaysBriefly

NumericDisplay

Change todesiredvalue

PressOnce

NumericDisplay

ofSetpoint

FIGURE 4-8. Alarm Setpoint


�� /��/�

DisplaysBriefly

27

B. Full Scale Setpoint. The full scale setpoint is thereading that produces a 20 mA output. �� identifiesthe full scale for output 1, and �� identifies the fullscale setpoint for output 2. For an analyzer equippedwith automatic pH compensation, output 1 is chlorineand output 2 is pH.

1. Press the PV key to ensure that the analyzer isnot in the set function menu.

2. Quickly double press the F.S./ALARM2 key. ��or �� will show briefly in the display, followed bythe present full scale setpoint for the outputselected. To switch outputs, press theF.S./ALARM2 key twice again and the display willtoggle to the other output.

3. To change the setpoint, press the SELECT key.The display will acknowledge briefly with �� fol-lowed by a numeric display with the right handdigit flashing.

4. Use the SCROLL (�) and SHIFT (�) keys todisplay the desired setpoint.

5. Press ENTER to place the new value in memory.The display will show �� or �� briefly followedby the new zero setpoint.

6. If the analyzer has two setpoints, repeat steps 2 through 5 to program the full scale setpoint forthe second output.

NOTE

For reverse output, enter the higherconcentration or pH for zero and thelower concentration or pH for full scale.

4.12 OUTPUT SCALE EXPANSION. Configure theanalyzer as described in Sections 4.5 through 4.10before programming the zero and full scale setpoints.Refer to Figure 4-9.

A. Zero Setpoint. The zero setpoint is the reading thatproduces a 0 or 4mA output (depending on how theoutput was configured). �� identifies the zero setpointfor output 1, and �� identifies the zero setpoint foroutput 2. For analyzers equipped with automatic pHcompensation, output 1 is chlorine and output 2 is pH.

1. Press the PV key to ensure the analyzer is not inthe set function menu.

2. Quickly double press the ZERO/ALARM1 key.�� or �� will show briefly in the display, followedby the present zero setpoint for the output select-ed. To switch outputs, press the ZERO/ALARM1key twice again and the display will toggle to theother output.

3. To change the setpoint, press the SELECT key.The display will acknowledge briefly with �� fol-lowed by a numeric display with the right handdigit flashing.

4. Use the SCROLL (�) and SHIFT (�) keys tochange the display to the desired value.

5. Press ENTER to place the new value in memory.The display will show �� or �� briefly followed bythe new zero setpoint.

6. If the analyzer has two outputs, repeat steps 2through 5 to program the zero setpoint for thesecond output.

ACCESS

ENTER

ZERO

ALARM1

F.S.

ALARM2

�

�SELECT

�

SELECT

PressTwice

PressOnce

DisplaysBriefly

DisplaysBriefly

NumericDisplay


PressOnce

NumericDisplay

ofOutput

FIGURE 4-9. Output Scale Expansion

��/�� /��


�� /�� /� �

DisplaysBriefly

28

4.13 SIMULATE CURRENT OUTPUT. The analyzercan provide a simulated output to check the operationof pumps, valves, and recorders. The output can be incurrent (��) or in percent of full scale (�). The out-put configuration programmed in Section 4.9 deter-mines which mnemonic appears. If the analyzer hasdual outputs, i.e., the pH correction board has beeninstalled, a simulated signal can be generated at bothoutputs. � or �� identifies output 1 (free residualchlorine), and

or �� identifies output 2 (pH). Referto Figure 4-10.

A. Simulate Output in Percent. The simulated outputwill be in percent full scale if �� or �� in Section 4.8was configured to display percent (�).

1. Press the PV key once to ensure that the analyzeris not in the set function menu.

2. Quickly double press the OUTPUT/PV key. �or

will show briefly in the display, then thedisplay will change to the last simulated output. Ifthe analyzer has dual outputs and the wrong out-put is displayed, double press the OUTPUT/PVkey a second time. The display will toggle to theother output.

3. To make the analyzer generate the simulated out-put, press the SELECT key. �� or �,depending on which output was selected in step2, will appear momentarily, followed by a numericdisplay with the right hand digit flashing.

4. To change the simulated output to a differentvalue, use the SCROLL (� ) and SHIFT (� )keys.

5. Press ENTER to store the new value in memory.The display will briefly show � or

followedby the entered value. Because the analyzer is inhold while the simulated current is being generat-ed, the display flashes and the mnemonic ��appears occasionally. After one minute the dis-play returns to the measured value (flashing), thehold flag remains on, and the output remains atthe simulated value. The relays will operate asprogrammed in Section 4.9.

6. To end the simulated output and remove the ana-lyzer from hold, quickly double press theHOLD/TEMP key. The display stops flashing, thehold flag turns off, and the output returns to thevalue determined by the scale expansion pro-grammed in Section 4.12.

B. Simulate Output in Current. The simulated outputwill be in mA if �� or �� in Section 4.8 was config-ured to display current (��).

1. Press the PV key once to ensure that the ana-lyzer is not in the set function menu.

2. Quickly double press the OUTPUT/PV key. ��or �� will show briefly in the display, then the dis-play will change to the last simulated output. If theanalyzer has dual outputs and the wrong output isdisplayed, double press the OUTPUT/PV key asecond time. The display will toggle to the otheroutput.


ACCESS

ENTER

OUTPUT

PV

�

�SELECT

�SELECT

PressTwice

PressOnce

DisplaysBriefly

DisplaysBriefly

NumericDisplay


PressOnce

FIGURE 4-10. Simulate Current Output

��

��/�

��/��/

NumericDisplay of

Output

��/��/

DisplaysBriefly


3. To change the simulated output, press theSELECT key. �� or ��, depending on which out-put was selected in step 2, will appear momentar-ily, followed by a numeric display with the righthand digit blinking.

4. To change the simulated output to a differentvalue, use the SCROLL (� ) and SHIFT (� )keys.

5. Press ENTER to store value in memory. The dis-play will briefly show �� or �� followed by theentered value. Because the analyzer is in holdwhile the simulated current is being generated,the display f lashes and the mnemonic ��appears occasionally. After one minute the dis-play returns to the measured value (flashing), thehold flag remains on, and the output remains atthe simulated value. The relays will operate asprogrammed in Section 4.9.

6. To end the simulated output and remove the ana-lyzer from hold, quickly double press theHOLD/TEMP key. The display stops flashing, thehold flag turns off, and the output returns to thevalue determined by the scale expansion pro-grammed in Section 4.12.

4.14 pH CORRECTION. Free residual chlorine is thesum of hypochlorous acid and hypochlorite ion. Thefraction of each species present is determined by thepH. Because the sensor responds only to hypochlor-ous acid, a pH correction is necessary to convert sen-sor response into the total concentration of freechlorine. The analyzer permits either automatic ormanual pH correction. In automatic pH correction, theanalyzer uses the measured pH of the sample to cal-culate the total concentration of free chlorine. In man-ual pH correction, the user keys in the sample pH.

A. Analyzer Equipped with Automatic pHCorrection. Select �� to enable and select �� to dis-able automatic pH correction. If automatic pH correc-tion is disabled, a manual pH value must be entered.The analyzer uses the entered value for the correc-tion.1. Press the PV key to ensure that the analyzer is

not in the set function menu.

2. Press CAL. The display will show � momentarilyfollowed by the present pH.

29

3. SCROLL (�) until �� appears in the display,then press SELECT. The display will be flashingeither �� or ��.

4. Press SCROLL (�) until the desired mnemonicappears in the display. Press ENTER to place theselection in memory.

5. If �� was selected, mnemonic � appears momen-tarily, and the display returns to the current pHvalue.

6. Press the PV key to return the display to the chlo-rine reading.

7. If �� was selected, the mnemonic �� appearsfollowed by a number. Press SELECT . ��appears momentarily followed by a number withthe right hand digit flashing. Use the SCROLL(�) and SHIFT (�) keys to change the displayto the desired pH value. Press ENTER to storethe value in memory. �� appears momentarily,and the entered number reappears in the display.The analyzer will use the pH value entered in thisstep for future pH corrections.


B. Analyzer Without pH Correction. The analyzeruses the pH value entered in this step for al l corrections.

1. Press the PV key to ensure that the analyzer isnot set in the set function menu.

2. Press CAL. The display will show �� momentari-ly followed by a number.

3. Press SELECT. �� will appear momentarily fol-lowed by a number with the right hand digit flash-ing. Use the SCROLL (�) and SHIFT (�) keysto change the display to the desired pH value.Press ENTER to store the value in memory. ��appears momentarily, and the entered numberreappears in the display.


30

If the temperature reading from the analyzer does notagree with the standard thermometer, adjust the ana-lyzer temperature display.

1. Press the PV key to ensure that the analyzer isnot in the set function menu.

2. Press the TEMP key once. The display will brieflyshow °� or °� followed by the present temperaturein either °F or °C (depending on the units select-ed in Section 4.7).

3. Press the SELECT key. �� will show briefly fol-lowed by a numeric display with the right hand digitflashing.

4. Use the SCROLL (�) and SHIFT (�) keys tochange the display to the correct value.

5. Press ENTER to place the new value in memory.°� or °� shows briefly followed by the correctedtemperature.

Temperature calibration can be done without removingthe sensor from the process stream. To ensure thatthe reference instrument and the 499A CL sensor aremeasuring the same sample temperature, install thereference thermowell as close to the sensor as possi-ble. If a thermowell is not available, measure the tem-perature of the process at a sample tap. Let a sampleof the process stream, taken from a point as close tothe sensor as possible, discharge into the bottom of asmall container. To minimize heat exchange betweenthe sample and the ambient air, let the sample flow asrapidly as possible. Place the reference temperaturesensor in the container so that it is completely bathedin the sample. Allow adequate time for equilibrationand compare the analyzer temperature reading withthe reference temperature. Adjust the analyzer read-ing if necessary.

5.3.2 Analyzer Zero. The analyzer/sensor loop must bezeroed every time a new sensor is place in service or anexisting sensor is rebuilt. Rebuilding a sensor meansreplacing the membrane and/or replenishing the elec-trolyte. Zero the loop by placing the sensor in chlorine-free water, and allow it to operate until the currentreaches a minimum value. The minimum current iscalled the residual current.

Model 1054B CL SECTION 5.0START-UP AND CALIBRATION

SECTION 5.0START-UP AND CALIBRATION

5.1 GENERAL. This section gives the start-up and cali-bration procedures for the Model 1054B CL Analyzerwith the Model 499A CL sensor and, if appropriate, aModel 389, 396P, or 399 pH sensor.

5.2 START-UP. When the analyzer is powered up, apolarization voltage is applied between the anode andcathode. The sensor current is initially very high butthen falls off quickly and usually reaches a steadystate after a few hours.

5.3 CALIBRATION. This section describes how to do the following:

1. calibrate the temperature response of the chlorine sensor;

2. zero the chlorine sensor;3. calibrate the chlorine sensor against a grab

sample or a known standard4. calibrate the pH sensor.

5.3.1 Temperature Standardization. The 1054B CLanalyzer uses a membrane-covered amperometric sen-sor. Because the permeability of the membrane is astrong function of temperature, accurate temperaturemeasurement is necessary for accurate chlorine meas-urements. The 499A CL sensor measures temperatureusing a 100 ohm platinum RTD. The accuracy of a newsensor/analyzer loop is about ±1°C, which is adequatefor most applications. A new sensor seldom requirestemperature calibration. If ±1°C accuracy is not accept-able or if the temperature measurement is suspected ofbeing in error, use the following procedure to calibratethe RTD.

1. Immerse the sensor in a container of water to atleast an inch from the bottom of the lower threads.If the temperature of the water is appreciably dif-ferent from ambient, use an insulated container.

2. Place a calibrated thermometer in the water withthe sensor.

3. Stir the water continuously.

4. Allow temperature readings to stabilize. The stabi-lization step may take as long as 30 minutes.

5.1 General5.2 Start-Up5.3 Calibration

31

Model 1054B CL SECTION 5.0START-UP AND CALIBRATION

1. Place the sensor in a container of fresh distilled ordeionized water. Immerse the sensor to at least aninch from the bottom of the lower threads. Add 4 to 6mL of pH 7 buffer for every 1000 mL of water. If pH 7buffer is not available, add about 0.50 gram of a neu-tral salt, like sodium chloride or potassium chloride,to the water. The buffer or salt increases the ionicconcentration of the water and reduces the rate ofloss of electrolyte through the sensor membrane.

2. Allow the sensor to stabilize. The stabilization timemay be as long as 4 hours. Periodically measurethe current while the sensor is stabilizing. To viewthe current, quickly double press the ACCESS/ENTER key. �"� will be displayed momentarily, thenthe display will change to ��. Press the SELECTkey to display the current.

NOTE

The sensor current and, therefore, the dis-played concentration will fluctuate and mayeven become negative while the loop is zero-ing.

3. Once the current is stable, press theACCESS/ENTER key twice to return to the top of themain menu.

4. Press the SCROLL (�) key until �� is displayed.

5. Press the SELECT key. �� will flash for about fiveseconds and then freeze. The analyzer loop isnow zeroed.

6. Press the PV key to leave the set function menu.The analyzer should read near zero ppm.

5.3.3 Calibrating the Chlorine Sensor Against aGrab Sample. The chlorine sensor can be calibratedagainst a grab sample taken from the process stream.Observe the following precautions:

1. Calibrate the pH sensor before starting the grabsample calibration. See Sections 5.3.5, 5.3.6, and5.3.7. If automatic pH correction is not being used,measure the pH of the process stream and enterthe value before starting the calibration. SeeSection 4.14.

2. Ensure that the grab sample is representative ofthe liquid flowing past the senor. Take the samplefrom the process stream at a point as close to thesensor as possible.

3. The sensor requires continuous flow of liquid pastit. Place the sample valve downstream from thesensor to avoid starving the sensor when takingthe sample.

4. Flush the sample line thoroughly then rinse thesample bottle several times before sampling.Because aqueous solutions of free chlorinedecompose rapidly in light, collect the sample in acolored glass bottle.

5. Glassware used for sampling may have a chlo-rine demand. Before taking the sample, soak thesample bottle for several days in a solution ofdilute chlorine (20 drops of bleach in one liter ofwater) and rinse thoroughly. Check the bottle forresidual chlorine before using it for samples.

6. Aqueous solutions of free chlorine are unstable.Start the analysis immediately after collecting thesample. See Standard Methods, 19th edition,4500-CI for appropriate analytical methods.

To calibrate the sensor follow the steps below:

1. Wait until the analyzer reading is stable or driftingslowly. Note the reading and take the sample.

NOTEFor best results calibrate the sensorwhen the chlorine level in the processstream is at the high end of the nor-mal operating range. Ideally, thesenor current should be at least 70nanoamps when the senor is calibrat-ed. If the pH of the process stream ishigh and the chlorine levels are low,the sensor current might be too lowfor an accurate calibration.

2. Immediately measure the free residual chlorineconcentration in the sample.

3. Note the present concentration of chlorine in thesample stream. Be sure the concentration is sta-ble. Calculate the calibration value using the fol-lowing formula:

C = (X/Y) (A)where C is the calibration value to be entered, Xis the present analyzer reading, Y is the analyzerreading at the time the grab sample was taken,and A is the concentration of free residual chlo-rine in the grab sample.

4. Enter the calibration value:

A. Press the PV key to make sure the analyzeris not in the set function menu.

32

B. Press the SELECT key. �� appears momen-tarily, then the display changes to the lastfree chlorine reading. The right hand digit willbe flashing.

C. Use the SCROLL (�) and SHIFT (�) keysto change the display to the value calculatedin step 3.

D. Press the ENTER key to place the calibra-tion value in memory. The analyzer is nowstandardized.

5.3.4 Calibration Against a Known Standard. If cali-bration against a grab sample is not feasible, the loopcan be calibrated against a solution containing aknown concentration of chlorine.

1. The procedure requires that pH be known. Ifautomatic pH correction is being used, calibratethe pH sensor following the procedure in Section5.3.6 before starting. If automatic pH correction isnot being used, obtain and calibrate a pH meterand sensor.

2. Pour about 900 mL of process water into a 1-literbeaker. Place the chlorine and pH sensors in thebeaker. Place a magnetic string bar in the beakerand begin stirring. Adjust the stirring speed untilthe chlorine reading is essentially independent ofstirring speed. Do not stir so fast that a vortexappears. A thin sheet of plastic foam placedbetween the stirrer and the beaker will insulatethe liquid from the heat generated by the stirrer.

3. Using household bleach, adjust the chlorine leveluntil it is at the high end of the normal operatingrange. Bleach contains about 45,000 ppm chlo-rine (as Cl2). Adding 0.05 mL of bleach (onedrop) to 1000 mL of sample increases the chlo-rine level about 2 ppm. To increase the chlorinelevel by a smaller amount, dilute the bleachbefore adding it to the sample.

4. Monitor the temperature, pH, and the chlorinereading until all are stable or drifting slowly. Ifmanual pH correction is being used, enter the pHvalue. Note the analyzer reading and immediatelyremove a sample of the standard solution foranalysis. Determine the concentration of freechlorine in the sample. Aqueous solutions of freechlorine are unstable. Start the analysis immedi-ately after collecting the sample. See StandardMethods, 19th edition, 4500-CI for appropriateanalytical methods

5. Note the present concentration of chlorine in thestandard. Be sure the concentration is stable.Calculate the calibration value using the followingformula:

C = (X/Y) (A)where C is the cali

free residual chlorine microprocessor analyzer...2 model 1054b cl section 1.0 description and...

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