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29

• Enter code 710 using the 

 and 

 keys.

• Press DIAG and the display will scroll through “AL 

—

”,

maximum desired level, and “AL 

—

”, minimum desired level.

• Press DIAG when the needed condition

appears.

• To see the current alarm logic (high or low alarm), press

DIAG. The display will show the last diagnostic mode and
the right-most numerical digit will blink.

• Enter code 711 using the 

 and 

 keys.

• Press DIAG and the display will show if the current alarm is

set as minimum (LOW) or maximum (HIGH) desired level.

  LOW

   HIGH

DIAG

DIAG

DIAG

DIAG

Summary of Contents for PCA 300 Series

Page 1: ...PCA 300 PCA 301 Series Panel mounted Microprocessor based Chlorine Analyzers Instruction Manual ...

Page 2: ...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 RS232 port and a Nema 4X 12 and 13 enclosure PCA 300A Same as PCA 300 except for the RS232 port which is not supplied PCA 301A Same as PCA 301 except for the RS232 port which is not supplied PCA 300AC This OEM version is exactly the ...

Page 3: ...INTENANCE 44 Calibration Requirement 44 Hydraulic System 44 Reagents Supply 44 Changing Peristaltic Pump Tubing 46 Tubing Replacement 47 Y Strainer Cleaning 47 Cleaning Measurement Cell 47 Relay Test 48 Calibration Procedure 48 ERROR CODES 50 OPERATIONAL DIAGNOSTIC CODES 53 INTERFACE WITH PC 55 ACCESSORIES 56 WARRANTY 57 CE DECLARATION OF CONFORMITY 59 1997 Hanna Instruments All rights are reserve...

Page 4: ...lammable or explosive in nature If any sample solution other than water is used with these products test the sample product compat ibility to assure user safety and proper product performance Safety Precautions Please take the time to read the safety precautions carefully wherever they appear in this manual They are provided to prevent personal injury and damage to the instrument This safety infor...

Page 5: ...verted to Chlorine concentration in mg L which is displayed on the front panel four digit LED display Indicator and buffer reagent bottles are placed directly into the instrument case With a sampling period of 5 minutes reagents need to be replenished about once a month The reagent bottles are easily visible through the transparent win dow to allow the operator to check the reagent levels The case...

Page 6: ...em alarm feature provides relay activation to signal need for operator intervention The PCA 300 and PCA 301 analyzers can supply data to an external computer through an RS232C output connec tion Voltage output levels of 0 10mV 0 100mV 0 1V or a cur rent output of 4 20 mA are selectable to drive an external device such as a chart recorder or an external regulator Recorder span minimum and maximum v...

Page 7: ...t to Cell 8 Measuring Cell 9 Output Port 10 Drain Tube 11 Drain Port of Measuring Cell 12 Drain Port Valve 13 Sample Tubing 14 Buffer Bottle 15 Indicator Bottle 16 Sample Port 17 Incoming Pressure Regulator 18 Electrovalve 19 Reagent Tubing 20 Line Input 21 Pressure Regulator Output Port Unplug the meter before any electrical connection ...

Page 8: ...above 5 mg L the display will blink mg L CHLORINE INDICATOR During normal operation this green indica tor will be on continuously indicating that the LED is displaying Chlorine concentration Dur ing the diagnostic or other modes this indicator will be off DOSE INDICATOR When proportional dosing is active the dose LED will be on and the corresponding relay closes This LED turns off automatically wh...

Page 9: ...ximum and mini mum Chlorine concentration levels since last reset The RIGHT arrow key is used to shift digit position within a displayed number The UP arrow key is used to scroll up a displayed digit 0 1 2 9 0 1 2 etc The DIAG key is used to select programming and self diag nostic modes The Rec Max key is used to enter and recall maximum value of the recorder output in mg L The Rec Min key is used...

Page 10: ...ampling cycle for 90 response and two sampling cycles for 100 response Sampling rate Adjustable from 3 to 102 minutes Sample inlet 0 07 bar 1psig min 4 bar 57 2 psig pressure max An internal regulator reduces pressure from 4 bar 57 2 psig to 1 bar 14 3 psig Sample flow Flow rate of 300 mL min is recom range mended Minimum and maximum allowed are 100 mL min and 500 mL min respectively Sample 5 to 4...

Page 11: ...VAC or 5 A at 30VDC inductive load 2 A at 250VAC or 3 A at 30VDC Alarms One sample concentration alarm adjustable as minimum or maximum acceptable value equipped with a SPDT relay with contacts rated for resistive load 5 A at 250VAC or 5 A at 30VDC inductive load 2 A at 250VAC or 3 A at 30VDC One system error alarm Power 20VA at 115VAC 230VAC requirements 50 60 Hz Sample inlet 12 mm 1 2 male NPT f...

Page 12: ...put valve is open to allow sample flow to flush the colorimeter cell Every 3 to 102 minutes user se lectable the valve closes stopping the sample flow and leaving the sample cell full of fresh sample Cell volume is controlled by an overflow gateway As the sample inlet valve closes a series of measurements with LED on and off of the unreacted sample is taken to determine an average Blank level prio...

Page 13: ...ntain the proper pH To measure Total Residual Chlorine Free available Chlorine plus combined Chloramines the PCA301 series adds Po tassium Iodide The Chloramines in the sample cause iodide ions to become iodine which then act with free Chlo rine to oxidize the DPD indicator After the chemical reaction is complete the optical signal at 555 nm is compared to the signal measured through the sample be...

Page 14: ...r from the sampling point The result is improved response time of the analyzer to changes in Chlo rine contents The instrument should be mounted indoors out of direct sunlight Instrument operating temperature is 5 to 40 C 41 to 104 F Sampling Point Location Locate the sampling point to obtain a truly representative sample from the product stream For example be sure the sampling point is well downs...

Page 15: ... A 1 2 BSP sample input fitting allows direct connection to the optional input filter Sample line pressure should be between 0 07 and 4 bar 1 and 57 2 psig with an ideal pressure of 0 7 bar 10 psig Drain Line Installation The drain hose fitting is a 20 mm 3 4 hose barb on the bottom of the instrument enclosure An air gap between the end of the drain hose and the drain is recommended to prevent any...

Page 16: ...rst filter should have 50 100 µm pore size whereas in any case the second filter the one closer to the analyzer has to be 0 5 µm For correct installing procedure and maintenance see the instructions of filters INSTALLING THE PUMP TUBES Locate the analyzer reagent tubes in the accessory kit Each tube is composed of three sections The sections are joined together by plastic connectors with plastic c...

Page 17: ...ttle prior to installing them Place the indicator bottle HI 70450 for PCA 300 and HI 70460 for PCA 301 on the right and the buffer bottle HI 70451 for PCA 300 and HI 70461 for PCA 301 on the left Note Add the content of 5 HI 70452 sachets DPD Compound to the Indicator Solution prior to installing it Connect the longer tube ends on the left side of the pump to the reagent bottle cap insert fitting ...

Page 18: ...enter of the electrical compartment to the right of the fuses Hard wiring with 13 mm conduit is recommended and usually required by most municipal electrical codes Warning Before connecting the instrument to the line 1 Check the sticker near the fuses for proper voltage 2 Be sure the power cord is not connected to the line 3 Open front panel 4 Remove the cover screws Allen head 5 Do not remove per...

Page 19: ...ntervention through an external device such as a buzzer a light or any other electrical equipment Refer to the drawing on the right for proper wire connections The SYS ERROR LED goes on when a sys tem error has occurred If the situation persists for more than a few samples the operator should notify maintenance personnel for in vestigation of the problem When the meter is in system error mode the ...

Page 20: ...d be connected to Earth terminal at the instrument end and left open at the re corder end Refer to the drawing here for proper wire connections To operate with this hookup the following conditions are re quired at the recorder end The input to the recorder must be isolated from the chassis ground earth of the recorder If the recorder has more than one input they must be dif ferential inputs A choi...

Page 21: ...ion e g 0 1V See table below Switch Function 6 Not used 5 Calibrate Current 4 4 20 mA 3 0 1 V 2 0 100 mV 1 0 10 mV Dosing Pump Proportional dosing can be performed connecting an external pump to the DOSING RELAY block terminal For the correct connection see the drawing aside ...

Page 22: ...long enough for the tubing and colorimeter to be flushed and filled completely and for the reading on the digital display to become stable If no priming action is taken one or two hours may be re quired to initialize the instrument Faster stabilization can be obtained by priming the reagent pump and tubing using the provided operational code DISPLAY BRIGHTNESS The display brightness is set at the ...

Page 23: ...level MINIMUM AND MAXIMUM CONCENTRATION In any moment it is possible to recall the current minimum and maximum chlorine values taken since the last reset Simply press MAX MIN and the display will show alternately the two levels After a few seconds the display will revert to the last reading To clear the current minimum and maximum concentrations press DIAG The display will show the last diagnostic...

Page 24: ... one every 90 minutes It is possible to recall and change the interval between two different measurements at any given moment Simply press SET TIME Select the desired interval between 5 and 90 using the and keys The unit will not allow the user to enter a value less than 5 or greater than 90 Press SET TIME twice to store the new sampling interval setting and revert normal operational mode SET TIME...

Page 25: ...nt stabilization to about three minutes or until DIAG is pressed again 1 Press DIAG The display will show the last diagnostic mode and the right most numerical digit will blink 2 Enter priming code 502 using the and keys 3 Press DIAG to execute priming sequence The display will show CLn 4 Repeat the procedure if necessary until the reagents lines are completely primed from the bottles to the color...

Page 26: ...ill be shown on the display To change the setting enter the new setting into the display using the and keys and then quickly press the dedicated key twice The display will show the entries for approximately 2 sec onds after the last key stroke and after altering programmable parameters The display will then revert automatically to a Chlorine concentration display PROPORTIONAL DOSING Proportional d...

Page 27: ... DIAG and the possible settings 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 1 5 2 0 will scroll Note If the analyzer has been reset or turned on 0 1 is the de fault delta Store the desired delta e g 0 5 pressing DIAG when the desired value appears When dosing is active the DOSE LED turns on and the corresponding relays closes Note If the measured concentration is lower than the delta the dosing will b...

Page 28: ...ine concentration limit is exceeded The alarm can be set to actuate at any point from 0 00 to 5 00 mg L To set the concentration level alarm setpoint press SET ALARM and the display will show the previously pro grammed setpoint Note If the analyzer has been turned on for the first time 0 00 will appear as default setpoint Using the and keys set the new the mg L Chlorine value as desired alarm leve...

Page 29: ... the needed condition appears To see the current alarm logic high or low alarm press DIAG The display will show the last diagnostic mode and the right most numerical digit will blink Enter code 711 using the and keys Press DIAG and the display will show if the current alarm is set as minimum LOW or maximum HIGH desired level LOW HIGH DIAG DIAG DIAG DIAG ...

Page 30: ...order Minimum setting and 1 0 V to correspond to a concentration of 4 5 mg L Re corder Maximum setting The full scale span of the recorder would then be 1 5 mg L yielding a magnified view of the 3 0 to 4 5 mg L concentration range on the recorder To set the lower limit of the recorder output Press REC MIN Display will show the previously set mini mum recorder level e g 1 08 mg L The most signifi c...

Page 31: ...e The display will return to the Chlo rine concentration display and the setpoint will not be changed To set the higher limit of the recorder output Press REC MAX The display will show the previously set maximum recorder level e g 3 66 mg L The most sig nificant digit will be blinking Using the and keys set the new maximum recorder level e g 4 50 mg L Press REC MAX a second time The display will b...

Page 32: ...TION The PCA 300 and PCA 301 series of Analyzers are capable of self calibrating the voltage or current limits to ensure a 0 1V output is truly 0 1V or 4 20 mA output is exactly 4 20 mA This programmed capability eliminates the need for a voltmeter or milliammeter for output calibration Calibrating the recorder output involves a two part procedure First a coarse adjustment to set the voltage follo...

Page 33: ... Note If the analyzer has been reset or turned on d000 will ap pear when pressing DIAG 1 A 2 Enter code 104 using the and keys 1 A 3 Press DIAG rc 0 will be displayed and the analyzer will execute this mode 1 B To automatically calibrate FULL scale 1 B 1 Press DIAG The display will show the last diagnostic mode and the right most numerical digit will blink 1 B 2 Enter code 105 using the and keys D...

Page 34: ...ure in step 3 Step 2 If the 4 20 mA output is used 4 Ω load 500 Ω it is self calibrated by selecting the 4 20 mA CAL output with the recorder output selector DIP switch 2 A To automatically calibrate 4 mA 2 A 1 Set the 4 20 mA CAL switch to ON Because only one switch should be on at any one time all other switches should be off while the 4 20 mA CAL switch is selected 2 A 2 Press DIAG The display ...

Page 35: ...isplay will show the last diagnostic mode and the right most numerical digit will blink 2 B 2 Enter code 107 using the and keys 2 B 3 Press DIAG rc20 will be displayed and the analyzer will execute this mode calibrating the output to 20 mA 2 B 4 Using the recorder output selector switches turn the Calibrate Current switch off 5 and then turn the 4 20mA on 4 DIAG DIAG DIAG ...

Page 36: ...TAGE GROUND output terminal to GROUND input of multimeter OUT output terminal to VOLTS input of multimeter Afterconnections switchthemultimetertoDCVOLTSmode If output is CURRENT GROUND output terminal to GROUND input of multimeter OUT output terminal to AMPS input of multimeter After connections switch the multimeter to DC AMPS mode 3 A If the recorder zero reads too low 3 A 1 Press DIAG The displ...

Page 37: ...ow the last diagnostic mode and the right most numerical digit will blink 3 B 2 Enter code 101 using the and keys After code is selected display will show d101 3 B 3 Press DIAG r dn will be displayed and the analyzer will execute this mode fine tuning the low value 3 B 4 The reading on multimeter will slowly de crease When the desired value is reached press DIAG again to store it and quit the mode...

Page 38: ...C 3 Press DIAG r up will be displayed and the analyzer will execute this mode fine tuning upper value 3 C 4 The reading on multimeter will slowly increase When the desired value is reached press DIAG again to store it and quit the mode 3 D If the recorder full scale upper limit reads too high 3 D 1 Press DIAG The display will show the last diagnostic mode and the right most numerical digit will bl...

Page 39: ...eys 3 D 3 Press DIAG r dn will be displayed and the analyzer will execute this mode fine tuning upper value 3 D 4 The reading on multimeter will slowly decrease When the desired value is reached press DIAG again to store it and quit the mode DIAG ...

Page 40: ...ecorder output terminals with the following sequence If output is VOLTAGE GROUND output to GROUND input of multimeter OUT output to VOLTS input of multimeter Afterconnections switchthemultimetertoDCVOLTSmode If output is CURRENT GROUND output to GROUND input of multimeter OUT output to AMPS input of multimeter After connections switch the multimeter to DC AMPS mode To see the current minimum recor...

Page 41: ...show the last diagnostic mode and the right most numerical digit will blink 2 B Enter code 111 using the and keys 2 C Press DIAG will be displayed and the analyzer and the multimeter will display the current maximum recorder output limit 2 D Press DIAG again to quit the mode To see the current mid range recorder output 3 A Press DIAG The display will show the last diagnostic mode and the right mos...

Page 42: ...r turbid the light level may be inadequate for a proper operation This situation is indicated by the activation of the ana lyzer system alarm relay and the appearance of E09 on the display Note This condition can also be caused by failure of the LED light source It may be possible to compensate for inadequate light level by adjusting the light source intensity through the small ac cess holes provi...

Page 43: ...99 3 Press DIAG to execute the light level set mode All the display digits will blink 4 The display will show direct reading of the photodetector cell 5 Make sure the photometric chamber is well flushed Stop the external sample stream from flowing into the system The photometric cell is now filled with blank sample solu tion 6 Adjust the trimmer on the power supply board to obtain a reading betwee...

Page 44: ...partment can detect leaks pump tubing fatigue or breakage These periodic checks help ensure reliable analyzer perfor mance If a pump tube is interrupted and the reagents are not added to the sample the system error LED and relay will be activated to notify the user REAGENTS SUPPLY PCA 300 and PCA 301 warn the user when the reagents level reaches ap proximately 20 The green LED mg L will start blin...

Page 45: ...keys Press DIAG and the number of measurements taken will be displayed in tens e g 8363 will be displayed as 836 To reset the counter press DIAG The display will show the last diagnostic mode and the right most numerical digit will blink Enter code 702 using the and keys Press DIAG clr will be displayed and the analyzer will zero the counter DIAG DIAG DIAG DIAG ...

Page 46: ...eye protection must be worn while han dling reagent tubing to prevent contact with reagent chemi cals Read MSDS documents before proceeding Grasp the plastic collar of one pump tube and pull the fitting away from the pump toward the front of the case until it clears the retaining indentation Then move the fitting sideways away from the pump until the tube clears the slot Release the tube and fitti...

Page 47: ...ion and a cotton swab is recommended monthly Depending on sample con ditions at individual locations and absence of input filters it may be necessary to clean the cell on a weekly basis This can be determined by observing the cell condition when reagents are changed It is also highly recommended to clean the cell every time you turn the meter off In such a way scaling and molds growth are prevente...

Page 48: ...lay will show d501 3 Press DIAG The display will blink ON and OFF then the display will automatically return to the last concentra tion reading CALIBRATION PROCEDURE 1 Withdraw a sample of the measured liquid direct from the drain port of the measuring cell 11 by opening its valve 12 Note withdraw the sample just before the electrovalve stops the liquid flow to the measuring cell 2 With a calibrat...

Page 49: ... dis play will show Stor for a short time indi cating that the new calibration value is stored The unit will return to normal operation dis playing the calibrated value Value displayed can differ on the right most numerical digit Note it is not recommended to calibrate the meter at values below 2 mg L in order to maintain enough accuracy in the whole range Calibration below 2 mg L does not guarant...

Page 50: ...ossibility is hardware failure ERROR 2 INVALID FULL SCALE ADJUSTMENT OF RECORDER OUTPUT 1 The manual fine full scale adjustment of the recorder output in the UP direction DIAG 102 could not be per formed 2 The automatic full scale adjustment of the recorder out put in the DOWN direction DIAG 105 or 107 could not be performed Check the dip switches for proper configuration Also when in DIAG 102 E02...

Page 51: ... could not be performed Check the dip switches for proper configuration Also when in DIAG 103 E04 can occur if the user does not press DIAG again before the displayed DVM reading goes below a 0 9 V with 0 1 V dip switch setting b 90 mV with 0 100 mV dip switch setting c 9 mV with 0 10 mV dip switch setting Another possibility is hardware failure ERROR 5 INVALID VALUE The user attempted to set a sa...

Page 52: ...s indicated by the activation of the analyzer system alarm relay and the appearance of E09 on the display This condition can also be caused by failure of the LED light source ERROR 10 HIGH BLANK READING Possible reason is optical LED brightness DIAG 999 too high Note Error codes E01 to E07 are displayed on the analyzer but do not cause a system error condition Error codes E08 to E10 are not displa...

Page 53: ...0 mV 1 0 6 Set recorder 4 mA automatically with dip switch setting at calibrate current 1 0 7 Set recorder 20 mA automatically with dip switch setting at calibrate current 110 Show recorder output low scale setting on DVM or ammeter 111 Show recorder output full scale setting on DVM or ammeter 112 Show recorder output mid range value on DVM or ammeter 4 0 0 Set delta of proportional dosing 4 0 1 S...

Page 54: ...counter 71 0 Set the alarm logic low or high 711 Show the current alarm logic 8 0 0 Show the last system error message E08 to E10 9 0 0 Show the current value and allow calibra tion to a new value 901 Show the calibration factor 0 00 to 1 00 90 2 Reset the calibration factor to 1 00 9 9 9 Adjust optical LED light intensity Diagnostic codes reserved to technical personnel only ...

Page 55: ...00 baud no parity 8 bits per byte one stop bit can not be changed by the operator A simple example written in Microsoft QBASIC shows how to read print concentration data from the analyzer OPEN COM1 1200 N 8 1 CD0 CS0 DS0 OP0 RS TB2048 RB2048 FOR RANDOM AS 1 CLS PRINT 1 1 INITIALIZE PORT 1 COM 1 ON ENABLE EVENT TRAPPING ON PORT 1 ON COM 1 GOSUB ComHandler PROVIDE INTERRUPT NAME DO LOOP WHILE INKEY ...

Page 56: ...ump 6 pcs HI 70479 Tube from pump to Y strainer 6 pcs HI 70480 Free Cl2 Reagent Pack HI 70450 HI 70451 and HI 70452 HI 70481 Total Cl2 Reagent Pack HI 70460 HI 70461 and HI 70452 HI 70482 0 5 50 micron filter system HI 70483 Complete kit of reagent tubing spare kit 2 pcs HI 70484 Complete kit of reagent tubing spare kit 6 pcs HI 70485 Cuvet stirrer motor HI 70486 Stirring bar 5 pcs HI 70487 Colori...

Page 57: ...te of purchase serial number and the nature of the failure 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 When shipping any instrument make sure it is properly packa...

Page 58: ...µS cm RH T TDS PUMPS REAGENTS SOFTWARE THERMOMETERS TITRATORS TRANSMITTERS TURBIDITY METERS Wide Range of Accessories Most Hanna meters are available in the following formats BENCH TOP METERS POCKET SIZED METERS PORTABLE METERS PRINTING LOGGING METERS PROCESS METERS Panel and Wall mounted WATERPROOF METERS METERS FOR FOOD INDUSTRY For additional information contact your dealer or the near est Hann...

Page 59: ...the environment in which they are used Operation of these instruments in residential areas could cause unacceptable interference to radio and TV equipment Any variation introduced by the user to the supplied equipment may degrade the instruments EMC performance Unplug the instruments from power supply before opening the front cover ...

Page 60: ...w w w h a n n a i n s t c o m MANPCA300R1 07 02 PCA300 AND PCA301 COMPLIANCE MARKS ...

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