Hanna Instruments PCA 300 Series Instruction Manual
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Hanna Instruments PCA 300 Series Instruction Manual

Hanna Instruments PCA 300 Series Instruction Manual

Panel-mounted, microprocessor-based chlorine analyzers
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PCA 300/PCA 301
Series
Panel-mounted,
Microprocessor-based
Chlorine Analyzers
Instruction Manual

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  • Page 1 PCA 300/PCA 301 Series Panel-mounted, Microprocessor-based Chlorine Analyzers Instruction Manual...

  • Page 2: Table Of Contents

    Dear Customer, Thank you for choosing a Hanna Product. This instruction manual has been written for the following products: PCA 300 Free Chlorine Analyzer with features such as alarm functions, user-se- lectable sampling periods, LED warning indications, recorder outputs, RS232 port and a Nema 4X, 12 and 13 enclosure. PCA 301 Total Chlorine Analyzer with features such as alarm functions, user- selectable sampling periods, LED warning indications, recorder outputs,...
  • Page 3 CE DECLARATION OF CONFORMITY ..59 © 1997 Hanna Instruments All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of the copyright owner, Hanna Instruments Inc., 584 Park East Drive, Woonsocket, Rhode Island, 02895 , USA.

  • Page 4: Preliminary Examination

    Note Because of the inherent dangers in handling chemical samples, standards and reagents, HANNA Instruments strongly recommends the users of this product review the Material Safety Data Sheets and become familiar with safe handling procedures and proper usage prior to handling any chemicals.

  • Page 5: General Description

    GENERAL DESCRIPTION The Hanna PCA 300 and PCA 301 series of Chlorine Ana- lyzers are microprocessor-controlled, process analyzers which continuously monitor a sample stream for Chlorine content. The PCA 300 series monitor Free Chlorine and the PCA 301 series Total Chlorine in the 0 to 5 mg/L (ppm) range. In the DPD Colorimetric method, N, N-Diethyl-p-phenylene- diamine indicator and a buffer are mixed with the sample.

  • Page 6: Mechanical Dimensions

    Two selectable chlorine level setpoints can be set by the op- erator: a proportional dosing setpoint and an alarm setpoint. Both setpoints control a SPDT relay. The proportional dosing setpoint analyzers is user-selectable with a delta from 0.1 to 2.0 mg/L (ppm). The alarm level can be set by the user to be an “activate- if-lower-than”...

  • Page 7: Functional Description

    FUNCTIONAL DESCRIPTION 1. Alarms Indicators 11. Drain Port of Measuring Cell 2. LED Display 12. Drain Port Valve 3. Keyboard 13. Sample Tubing 4. Alarms Output 14. Buffer Bottle 5. Recorder Output 15. Indicator Bottle 6. Peristaltic Pump 16. Sample Port 7.

  • Page 8: Led Display, Indicators And Keyboard

    LED DISPLAY, INDICATORS AND KEYBOARD DIGITAL DISPLAY The digital readout will indicate the Chlorine concentration of the last sample measured in milligrams per liter (mg/L) dur- ing normal operation. Only when a key is pressed to execute some other function, will the concentration reading be interrupted.
  • Page 9 SYSTEM ERROR INDICATOR This LED is lit when a system error has oc- curred. If the situation persists for more than a few samples, the operator should notify maintenance personnel for investigation of the problem. When the meter is in system error mode, the user can directly access the diag- nostic code that indicates the source of error.

  • Page 10: Specifications

    SPECIFICATIONS PCA 300 PCA 301 Range 0.00 to 5.00 mg/L 0.00 to 5.00 mg/L Free Cl Total Residual Cl Resolution 0.01 mg/L Accuracy ±8% of reading or ±0.05 mg/L whichever is greater Typical EMC ±0.05 mg/L Deviation Minimum 0.05 mg/L detectable level Repeatability ±0.05 mg/L...
  • Page 11 400mg/L for Free Chlorine analysis (PCA 300) or 700mg/L for Total Chlorine analysis (PCA 301) Operating 5 to 40°C (41 to 104°F) temperature range Recorder output Selectable 0-10mV, 0-100mV, 0-1V or 4-20 mA. Output span is settable anywhere in the 0-5 mg/L range Dosage Proportional on one point with a delta adjustable at 0.1, 0.2, 0.3, 0.4, 0.5,...

  • Page 12: Operating Description

    OPERATING DESCRIPTION Referring to the drawing on page 7 and the Fluidic Dia- gram on page 13, the Sample Line is connected to the instrument at the Sample Port (#16); an internal Regulator (#17) reduces the inlet pressure from a maximum of 4 bar (57.2 psig) down to 1 bar (14.3 psig);...

  • Page 13: Method Of Analysis

    Fluid Diagram of the Analyzers METHOD OF ANALYSIS Free available Chlorine (monitored by the PCA300 series) oxidizes the DPD indicator reagent at a pH between 5.5 and 6.0 to form a magenta-colored compound. The intensity of the resulting color is proportional to the concentration of Chlo- rine in the sample.

  • Page 14: Initial Preparation And Installation

    Analyzers should be undertaken by persons with technical knowledge of the dangers associated with chemical exposure and electrical shock. Hanna Instruments assumes persons performing the instal- lation tasks are aware of the appropriate safety procedures. Review the Material Safety Data Sheets (MSDS) before han- dling the supplied chemical reagents.
  • Page 15 Direct routing of sample lines is also recommended. If the large process pipes are horizontal, taps should be in- serted vertically in the middle of the pipe to avoid pulling sediment from the bottom or air bubbles from the top of the pipe into the sample line.

  • Page 16: Installing The Input Filter

    Return Line Installation The return hose fitting is a 12 mm (1/2”) hose barb on the bottom of the regulator output port and should always be connected even when pressure is below 1 bar. INSTALLING THE INPUT FILTER In order to ensure maximum accuracy of measurements, it is recommended to have always clear sample, with suspended particles smaller than 0.5 µm.
  • Page 17 Grasp the other plastic collar and pull, stretching the center section, and place the grommet in the lower left indentation hole. Repeat this process with the second pump tube, placing it in the upper indentation holes. Separate reagent caps are provided in the accessory kit. Put the supplied caps onto each reagent bottle prior to installing them.

  • Page 18: Electrical Connections

    ELECTRICAL CONNECTIONS A power cable (3 mt.) is provided with your analyzer. How- ever, if access to the terminal block is required, see below. Warning Electrical connections should be installed only by qualified personnel to assure conformity to applicable electrical codes. Unplug the meter before any electrical connection.
  • Page 19 Recorder Output and Relay Access Hard wiring for alarms and relays can be accomplished through four watertight connectors on the left of the enclo- sure, by passing wires through the rubber grommet and tightening the nut as described earlier. Refer to the drawing on the right for proper wire connections. Alarm System A system alarm feature provides relay acti- vation to signal need for operator...
  • Page 20 Recorder Output Recorder output connections are made as indicated on the picture aside. The control panel must be opened. A wiring access hole is located on the left side of the instru- ment case. Use two wire shielded cable with the shield connected at the analyzer end only.
  • Page 21 Set the individual micro-switch for the desired output in the ON position (e.g. 0-1V). See table below. Switch Function Not used Calibrate Current 4 - 20 mA 0 -1 V 0 -100 mV 0 -10 mV Dosing Pump Proportional dosing can be performed connecting an external pump to the DOSING RELAY block terminal.

  • Page 22: Start-Up

    START-UP INSTRUMENT POWER ON When the POWER switch is turned on or RESET is pressed, the moving words “Hanna PCA300” will appear. This dis- play will continue for 20 seconds. RESET Then the concentration is set to 0.00 mg/L. An indication appropriate to the key pressed or, after 5 minutes, the first mg/L read- ing will appear on the display.

  • Page 23: Minimum And Maximum Concentration

    • Enter code 700 using the keys. • Press DIAG and “brt” will be displayed. Then the bright- ness of the display will begin to change through the three levels. DIAG • Press DIAG at one of the 3 brightness level and the analyzer will store that brightness DIAG level.

  • Page 24: Sampling Rate

    Press DIAG. “0.00” will appear on the display and the two levels will be set to the current value. DIAG SAMPLING RATE The sampling rate is user-selectable from a minimum of a measurement every 5 minutes to a maximum of one every 90 minutes.

  • Page 25: Priming The Reagent System

    PRIMING THE REAGENT SYSTEM A special diagnostic function included in the software pro- vides a convenient way to prime the peristaltic pump and reagent tubing during initial start-up. This decreases the time needed for instrument stabilization to about three minutes or until DIAG is pressed again.

  • Page 26: Analyzer Programming

    ANALYZER PROGRAMMING When power is first applied to the analyzer, programmable parameters of the analyzer are set to default values estab- lished at the factory. These values or any new values entered by the operator are stored in nonvolatile EEPROM which will retain the programmed values in the event of power failure.
  • Page 27 • Press SETPOINT twice to store the new set- point. • To set the range within which the proportional dosing occurs (delta), press DIAG. The display will show the last diag- nostic mode and the right-most numerical digit will blink. DIAG •...

  • Page 28: Concentration Setpoint Alarm Setting

    Example With the previously given values, sample rate 5 minutes and measured value 2.8 mg/L, the proportional dosing will be active for the initial 2 minutes and will stop for the remaining 3 minutes. In fact: 0.5 mg/L : 5 min = 0.2 mg/L (3-2.8) : X then X = 2 minutes.
  • Page 29 • Enter code 710 using the keys. • Press DIAG and the display will scroll through “AL — ”, maximum desired level, and “AL ”, minimum desired level. — DIAG DIAG • Press DIAG when the needed condition appears. • To see the current alarm logic (high or low alarm), press DIAG.

  • Page 30: Recorder Output Span Setting

    • When an alarm condition is met, the ALARM LED turns on and the corre- sponding relays closes. RECORDER OUTPUT SPAN SETTING The selected recorder output voltage range or the 4-20 mA current output may be associated with any Chlorine concen- tration in the 0 to 5 mg/L range.
  • Page 31 • If you want to store the new setpoint promptly press REC.MIN again. Display will show “Stor” for a short time indicating that the new setpoint is stored and will return to the Chlo- rine concentration display. REC. • If you do not want to change the setpoint, do not press REC.MIN a second time.

  • Page 32: Standby Mode

    • If you want to store the new setpoint, promptly press REC.MAX again. Display will show “Stor” for a short time indicating that new setpoint is stored and will return to the Chlorine concentration display. REC. • If you do not want to change the setpoint, do not press REC.MAX a second time.
  • Page 33 voltage limits can be calibrated automatically as follows: 1.A To automatically calibrate "ZERO" scale 1.A.1 Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG Note If the analyzer has been reset or turned on, “d000” will ap- pear when pressing DIAG.
  • Page 34 1.B.3 Press DIAG; “rc 1” will be displayed and the analyzer will execute this mode calibrating the span value e.g. 1V, 10mV or 100mV. DIAG Microprocessor programming routines will measure and cali- brate the output limits. This procedure will set the output to approximately 1% accuracy.
  • Page 35 2.A.4 Press DIAG; “rc 4” will be displayed and the analyzer will execute this mode calibrating the output to 4 mA. DIAG 2.B To automatically calibrate "20 mA 2.B.1 Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG 2.B.2 Enter code 107 using the keys.
  • Page 36 This procedure will set the output to 1%. Fine tune the re- corder output by following the procedure in step 3. Step 3 Recorder If the recorder output needs fine tuning, use Output the diagnostic routines described below. • Set the DIP switch to the desired option: 0-10mV/100mV/1V or 4-20 mA.
  • Page 37 DIAG 3.A.4 The reading on multimeter will slowly in- DIAG crease. When the desired value is reached, press DIAG again to store it and quit the mode. 3.B If the recorder zero reads too high 3.B.1 Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink.
  • Page 38 3.C If the recorder full scale (upper limit) reads too 3.C.1 Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG 3.C.2 Enter code 102 using the keys. 3.C.3 Press DIAG; “r up” will be displayed and the analyzer will execute this mode fine tuning upper value.
  • Page 39 3.D.2 Enter code 103 using the keys. 3.D.3 Press DIAG; “r dn” will be displayed and the analyzer will execute this mode fine tuning upper value. DIAG 3.D.4 The reading on multimeter will slowly DIAG decrease. When the desired value is reached, press DIAG again to store it and quit the mode.

  • Page 40: Recorder Output Limits Check

    RECORDER OUTPUT LIMITS CHECK At any time, it is possible to see on a multimeter the present settings of the recorder output, e.g. 0-1mV, 4-20 mA etc. This feature is particularly useful to check Recorder the settings and to ensure the outputs are Output functioning.
  • Page 41 and the multimeter will display the current minimum recorder output limit. Press DIAG again to quit the mode. DIAG DIAG To see the current maximum recorder output limit Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink.

  • Page 42: Adjusting The Light Source

    Enter code 112 using the keys. Press DIAG; “– –” will be displayed and the analyzer and the multimeter will display the current mid-range recorder output limit. DIAG DIAG Press DIAG again to quit the mode. ADJUSTING THE LIGHT SOURCE If the sample blank is highly colored or turbid, the light level may be inadequate for a proper operation.
  • Page 43 To adjust the light level of the blank sample: 1. Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG 2. Enter code 999 using the keys. After the code is selected display will show “d999”. 3.

  • Page 44: Maintenance

    MAINTENANCE CALIBRATION REQUIREMENT Calibration of the PCA 300 and PCA 301 series of Chlo- rine Analyzers is not normally required. The DPD technique for measuring Chlorine concentration is well established and consistent. Also, by measuring the sample blank absorbancy to establish the zero reference with each measurement, the accuracy of the analyzer is assured.
  • Page 45 To see the current value, press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG Enter code 701 using the keys. Press DIAG and the number of measurements taken will be displayed in tens (e.g. 8363 will be displayed as 836). DIAG To reset the counter, press DIAG.

  • Page 46: Changing Peristaltic Pump Tubing

    Once reagents are completely ex- hausted, the system error LED will lit (while the relay remains activated) to notify the user. CHANGING PERISTALTIC PUMP TUBING It is recommended that the peristaltic pump tubes be changed on a regular basis depending on sampling period and oper- ating time.

  • Page 47: Tubing Replacement

    TUBING REPLACEMENT The remaining tubing in the analyzers should be replaced every two months. When installing new tubing it is helpful to dip them in hot water before making the connections. It is also recommended that one tube at a time is removed and replaced.

  • Page 48: Relay Test

    RELAY TEST In the relay test mode all three alarm relays close for about one second. 1. Press DIAG . The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG 2. Enter code 501 using the keys.
  • Page 49 3. Wait for the PCA to display the reading. 4. Press DIAG. The display will show the last diagnostic mode and the right-most numerical digit will blink. DIAG 5. Enter code 900 using the keys and press DIAG. DIAG 6. Enter the calibration value using the keys.

  • Page 50: Error Codes

    ERROR CODES ERROR 0 - NO ERROR ERROR 1- INVALID LOW-SCALE ADJUSTMENT OF RECORDER OUTPUT 1. The manual (fine) low-scale adjustment of the recorder output in the DOWN direction (DIAG 101) could not be performed. 2. The automatic low-scale adjustment of the recorder out- put in the DOWN direction (DIAG 104 or 106) could not be performed.
  • Page 51 Check the dip switches for proper configuration. Also, when in DIAG 100, “E03” can occur if the user does not press DIAG again before the displayed DVM reading goes above: a. 100 mV, with 0-1 V dip switch setting b. 10 mV, with 0-100 mV dip switch setting c.
  • Page 52 ERROR 8 - LOW ABSORPTION The measured absorption is too low. Possible reasons in- clude: 1. empty reagent bottles; 2. clogged, pinched or broken tubes; 3. interrupted sample flow. ERROR 9 - LOW BLANK READING If the sample blank is highly colored or turbid, the light level may be inadequate for a proper operation.

  • Page 53: Operational & Diagnostic Codes

    OPERATIONAL & DIAGNOSTIC CODES Code Function Increase recorder output lower limit in manual 1 0 0 low-scale adjustment Decrease recorder output lower limit in manual low-scale adjustment Increase recorder output upper limit in 1 0 2 manual full-scale adjustment Decrease recorder output upper limit in 1 0 3 manual full-scale adjustment Set recorder 0 V automatically with dip...
  • Page 54 Clear previous minimum/maximum concen- 5 0 3 tration values Set the display brightness level 7 0 0 Show the current reagent counter value (in 7 0 1 tens) Reset the reagent counter 7 0 2 Set the alarm logic (low or high) 7 1 0 Show the current alarm logic Show the last system error message (E08...

  • Page 55: Interface With Pc

    Data transmission from the instruments to the PC is possible with the HI92000 Windows ® compatible application software offered by Hanna Instruments. Refer to the drawing for proper wire connec- tions. Serial port set up is: 1200 baud, no parity, 8 bits per byte, one stop bit (can not be changed by the operator).

  • Page 56: Accessories

    ACCESSORIES ChecktempC Termometer (-50.0 to 150.0 ºC) HI 70473 Complete kit of tubes from pressure regulator to drain HI 70474 Peristaltic pump tube (6 pcs) HI 70475 Peristaltic pump tube (2 pcs) HI 70476 Reagent bottle inside tube (6 pcs) HI 70477 Y strainer and line tube from Y strainer to cell (6 pcs) HI 70478...

  • Page 57: Warranty

    If the repair is not covered by the warranty, you will be notified of the charges incurred. If the instrument is to be returned to Hanna Instruments, first ob- tain a Returned Goods Authorization number from the Customer Service department and then send it with ship- ping costs prepaid.
  • Page 58 OTHER PRODUCTS FROM HANNA • CALIBRATION AND MAINTENANCE SOLUTIONS • CHEMICAL TEST KITS • CHLORINE METERS • CONDUCTIVITY/TDS METERS • DISSOLVED OXYGEN METERS • HYGROMETERS • ION SPECIFIC METERS (Colorimeters) • MAGNETIC STIRRERS • Na/NaCl METERS • pH/ORP/Na ELECTRODES • pH METERS •...

  • Page 59: Ce Declaration Of Conformity

    CE DECLARATION OF CONFORMITY Recommendations for Users Before using these products, make sure that they are entirely suitable for the environment in which they are used. Operation of these instruments in residential areas could cause unacceptable interference to radio and TV equipment.
  • Page 60 PCA300 AND PCA301 COMPLIANCE MARKS...

This manual is also suitable for:

Pca 301 series

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