Operator Manual
POLYMETRON 9135pH/redox measurement
221=191=035 - Revision N - 10/12/2007
Page 1: ...Operator Manual POLYMETRON 9135 pH redox measurement 221 191 035 Revision N 10 12 2007 ...
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Page 3: ...he FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential...
Page 4: ... Elements Part Name Lead Pb Mercury Hg Cadmium Cd Hexavalent Chromium Cr VI Polybrom Biphenyls PBB Polybrom Diphenyls PBDE Transmitter box X CPU PCB X O Power PCB X O Relay PCB X O Module X O Indicates that this toxic or hazardous substance contained in all homogeneous material for this part is below the limit requirement X Indicates that this toxic or hazardous substance contained in at least one...
Page 5: ...ifferent links 18 Configurations of the cables 20 Relation between colour function 22 Intermediary connection details junctions 23 4 Using the 9135 transmitter 27 Utilization rules for the menus 27 Modification of a value 28 Measures display 28 Main display 29 Display options 30 Choice of the language 30 S DISPLAY Menu 30 5 Configuration of the 9135 transmitter 31 MAIN menu 31 CALIBRATION menu 32 ...
Page 6: ...4 S AVERAGE Menu 55 S DISPLAY Menu 55 S CODE Menu 56 S SOFT ISSUE Menu 57 S DEFAULT VALUES Menu 57 S mA ADJUST Menu 58 S FACTORY menu 58 6 Failures detection and error messages 59 Failures detection 59 Electrode cleaning 60 Maintenance 60 Error messages 60 7 Impedance measurement 65 Electrode impedance electrode integrity index 65 Measurement principle 66 8 Analogue outputs and temperature control...
Page 7: ...continuous control of pH or redox potential with possibility of temperature measurement in industrial process An automatic control of the sensor defaults improves the preventive servicing of the measuring chain 2 analogue outputs 0 4 20 mA may be freely programmed Note The programming is displayed in 6 languages To modify this parameter see 4 Changing the programming language Four relays and RS485...
Page 8: ...low of ions from the reference solution to the solution under test The electrode and reference solution together develop a voltage emf whose magnitude depends on the type of reference electrode the internal construction of the glass electrode the pH of the solution and the temperature of the solution This voltage is expressed by the Nernst equation E Eo 2 3 RT F xlog a H E Eo slope xlog a H where ...
Page 9: ...ch will be measured in a redox system with a measuring chain consisting of a redox electrode and a reference electrode is called the redox potential It depends on the ratio of activities of the two partners of a redox system and of the numbers of transferred electrons In many cases the pH of the solution will influence the potential too Peters s equation can determine the redox potentials The stab...
Page 10: ...the hydrogen electrode If εB is the half cell potential of the reference electrode used the calculation is made by ε H ε ε R Such standardized redox potentials to some extent provide information on the oxidizing or reducing power of a redox system Increasing positive values express an increasing power of oxidation The more negative the potential the stronger the reducing power will be The range of...
Page 11: ...V 1500 mV 20 C 200 C 4 F 392 F Display resolution 0 01 pH 0 1 pH adjustable 1 mV 0 1 C Repeatability 0 02 pH 1 mV 0 2 C Temperature sensor Pt 100 Pt 1000 Automatic temperature compensation range 20 200 C 4 392 F Temperature compensation range Nernst ultrapure water different tables Electrode type glass with or without preamplifier antimony redox programmable slope Uiso pHiso Cable length 0 25 m hi...
Page 12: ...mable in the range 0 14 pH or 1500 mV 1500 mV Neutral zone programmable from 0 3 pH or 0 200 mV symetric around the regulating point Proportional band programmable from 0 500 Periodicity programmable from 3 to 60 seconds impulse control or from 1 to 30 seconds frequency control Controller output 2 isolated contacts S1 and S2 S1 base injection S2 acid injection Automatic manual switch possible ANAL...
Page 13: ... V DC 0 5A max Use a cable rated 105 C and AWG22 to 14 The external cable insulation should be cut as close as possible from the terminal block Response time 10 ms Relaxation time 5 ms RS485 Baud rate 300 19200 bauds Insulation galvanic Station number 32 max PROGRAMMING Language French English German Italian Spanish Dutch Display icones graphic zone 80 64 pixels Protection codes calibration progra...
Page 14: ...m2 Consumption 25 VA Fuse 5 x 20 cartridge T2AL 250V European standards EN 61326 1997 and EN61326 A1 1998 Industrial level for immunity EN 61010 1 low tension main lines UL and CSA agreement File E226594 MECHANICAL CHARACTERISTICS Dimensions 144 x 144 x 150 mm Weight 2 Kg Material housing Polyester coated aluminium screws stainless steel Tightness IP65 Mounting types wall pipe panel Cable glands 2...
Page 15: ...sion accordingly to the instruction plates accessories 4 cable glands 2 fittings and 2 mounting screws instruction manual certificate of conformity to specifications Advice for installation Choose a site where vibrations are not too excessive supplay relays or commuters are away la maintenance sera facile the transmitter is not directly exposed to sunlight and is not summited to atmospheric exposu...
Page 16: ... DIN 43700 Panel mounting Panel cutting 138 x 138 mm Front panel dimensions 144 x 144 mm 2 screws 4 mm lg 16 flat head provided for panel thickness 0 to 4 mm 2 screws 4 mm lg 20 flat head provided for panel thickness 4 to 8 mm Fig 2 1 Panel mounting Panel outline 138 x 138 mm 5 4 in x 5 4 in Front dimensions 144 x 144 mm 5 8 in x 5 8 in Thickness panel Inferior to 8 mm ...
Page 17: ...Transmitter 9135 pH redox measurement Page 13 Wall mounting 2 screws 4 mm lg 60 flat head not provided 80 mm center distance Fig 2 2 Wall mounting ...
Page 18: ...Transmitter 9135 pH redox measurement Page 14 Pipe mounting 2 maximum 2 screws 4 mm lg 60 provided Fig 2 3 Vertical mounting Fig 2 4 Horizontal mounting ...
Page 19: ...n the 9135 transmitter enclosure ________________________________________________________________________ Fig 3 1 Electronic board lay out 1 Terminal block 4 20 mA 2 CPU board 3 RS485 board option 4 Relay board option 5 pH module 6 Programmed EEPROM 7 Program update connector 8 Power supply board ...
Page 20: ... 9135 shielded plate Supply terminals blocks and relays are under the shielded plate Note Electrical connections should remain dry to ensure a proper operation of the instrument Check the creeping of the cables when opening the transmitter Il is required to use shielded cables The shield should be linked to the main shielding ...
Page 21: ... section between 0 35 and 2 mm AWG 22 to 14 rated at 105 C minimum The external cable insulation should be cut as close as possible from the terminal block The instrument should be connected to the power supply by means of a breaker located close to the instrument and be identified The supply shall be fitted with an overcurrent protection device rated at 20 Amp maximum This breaker should switch o...
Page 22: ...m 8350 10m integrated 0 10 m 8350 0 1 2 4 10m integrated 08350 A 8500 HI 2654 10 25m 8350 0 1 2 4 10m integrated 08350 A 8000 2666 10 100m 8351 10m integrated 0 10m 8351 10m integrated 08350 A 8500 HI 2666 10 100m 8360 1P 8663 AS7 8495 Internal box 2666 25 100m 8360 1 AS9 AS7 8495 Internal box HI 2654 3 25m 8360 AS9 AS7 8495 0 3m 8361 10m fixed for pH and temperature sensor 0 10m 8361 10m fixed fo...
Page 23: ... with 3 m of fixed integrated cable 8496 Liquid earth rod with 2 m of fixed inegrated cable 8497 Pt100 temperature sensor with liquid earth rod and 3 m of integrated cable HI High impedance Impedance control with these configurations It can only be measured if the probe has a conduction earth rod which can be connected to the Liquid Earth terminal of the instrument This applies to the probes below...
Page 24: ...le 2 4 3 where the wire colours and functions are indicated AS7 used with reference electrode AS9 used with a non combined measurement electrode AS9 used with a combined electrode and a pH 8361 sensor cable 2666 8663 8497 temperature sensor 8361 8495 8496 shielded cable with 6 4 3 2 and 1 wire see table colour function relation or 1 wire ...
Page 25: ...bined electrode and 5 wires 5 wires 2654 high impedance cable used with a combined electrode shielded cable with a AS9 for combined electrode and 5 wires 5 wires 8350 cable shielded cable with AS9 for combined electrode and 2 wires 3 wires for 8350 4 for impedance detection 2 or 3 wires 8351 cable shielded cable with AS9 for combined electrode ...
Page 26: ...ey 4 8350 0 1 2 1 clear 3 black white red 4 yellow green 8350 4 1 clear 3 black white red blue 4 yellow green 8351 1 clear 3 black 4 yellow green 8361 pH temp cables 1 black 3 white white red blue 4 yellow green AS9 NC 1 3 4 AS9 C 1 3 4 AS7 2 4 8497 white green blue 4 8663 brown white green yellow 4 black The earth terminal located on the shielded plate see figure 2 1 should be connected to the ca...
Page 27: ... preamplifier 08350 A 8000 Sonde Transmetteur Connection for 08366 A 5000 enclosure and internal for probes 8360 1P 8340P 8344P 8346 Sonde Transmetteur Transmitter Probe external shield V GND V INPUT TEMP TEMP REF external shield V GND V INPUT TEMP TEMP REF Transmitter Probe external shield TEMP TEMP REF V V INPUT TEMP TEMP REF INPUT external shield ...
Page 28: ...bes 8340 44 For non combined electrode Sonde Transmetteur For combined electrode Sonde Transmetteur INPUT GND TEMP TEMP Liq Earth REF INPUT GND TEMP TEMP Liq Earth REF Transmitter Probe Transmitter Probe INPUT REF TEMP TEMP Liq Earth INPUT REF TEMP TEMP Liq Earth ...
Page 29: ...Sonde Transmetteur For 8360 1 internal enclosure Sonde Transmetteur external shield INPUT REF TEMP TEMP Liq earth Transmitter Probe INPUT REF TEMP TEMP Liq Earth external shield external shield INPUT GND TEMP TEMP REF INPUT GND TEMP TEMP REF external shield Transmitter Probe ...
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Page 31: ... key is used to validate the selections and the data Both middle keys right and left function keys are defined according to the words and symbols which are displayed above each function key Modify a parameter Choice Choose a menu Main Go back to the main display Menu Display the main menu Disp2 Display screen 2 Disp3 Display screen 3 OK Validate the measure during a calibration Increase a value De...
Page 32: ... the display for at least 10 minutes the instrument returns to the measuring mode except for the calibration and maintenance mode An access code may be required for the calibration programming and service menu see CODE menu Measures display Measures display allow to display measures and state of the device There are three Reference Description Main display Alarm state ƒ Function keys 6 98 pH 25 0 ...
Page 33: ... Alarm state S1 activated by a temperature 30 0 C S2 inactive S3 in alarm system S3 unactived for temperature 20 0 C S4 not used Display 3 Analogue outputs allocation measure or temperature Display of each output value with a bargraph mA indication 6 98 pH 25 0 C Disp2 Menu S1 S2 S3 S4 S1 S2 OK S4 Not used Disp3 Main S1 S3 C 30 0 C 20 0 I1 Measure I2 Temp 6 7 mA 10 mA Main ...
Page 34: ...t function key Select to select DISPLAY and press Enter Select the language of your choice with the right function key Press Enter S DISPLAY Menu UNIT choice of the pH measurement unit pH mV for the redox TEMP choice of the temperature measurement unit C F LANGUAGE choice of the message language French English German Spanish Italian Dutch Press Esc to go back to the DISPLAY menu CALIBRATION MAINTE...
Page 35: ...e CALIBRATION menu enables to adjust the instrument measurement according to the reference measurements The MAINTENANCE menu enables to intervene on the instrument The PROGRAMMING menu enables to program the instrument according to the application The SERVICE menu is reserved to qualified servicing personal CALIBRATION MAINTENANCE PROGRAMMING SERVICE MENU Select ...
Page 36: ...temperature the nominal pH values are referred to a temperature of 20 C For temperatures different from 20 C NIST standard buffer solutions DIN buffers and pH values are indicated in the table below NIST Delay Buffer 4 00 Buffer 6 88 Buffer 9 00 0 4 01 6 984 9 464 5 4 6 951 9 395 10 4 6 923 9 332 15 4 6 9 9 276 20 4 6 881 9 225 25 4 01 6 865 9 18 30 4 01 6 853 9 139 35 4 02 6 844 9 102 40 4 03 6 8...
Page 37: ... 01 6 96 8 73 65 4 01 6 96 8 71 70 4 01 6 96 8 7 75 4 01 6 96 8 68 80 4 01 6 97 8 66 85 4 01 6 97 8 65 90 4 09 6 98 8 64 DIN 10 Delay Buffer 4 00 Buffer 7 00 Buffer 10 00 0 4 05 7 13 10 26 5 4 04 7 07 10 17 10 4 02 7 05 10 11 15 4 01 7 02 10 05 20 4 7 10 25 4 01 6 98 9 94 30 4 01 6 98 9 89 35 4 01 6 96 9 84 40 4 01 6 85 9 82 45 4 01 6 9 9 78 50 4 01 6 95 9 74 55 4 01 6 95 9 7 60 4 01 6 96 9 67 65 ...
Page 38: ...zation and a pH 4 buffer solution or 4 01 to 25 C or pH 10 or 9 22 to 25 C is required to calibrate the electrode slope Choice of the calibration type Different calibration types may be selected In the CALIBRATION menu Press CHOICE to select pH standard Press Enter Press CHOICE to select PROGRAMMING With the right function key choose the calibration type Automatic calibration With the right functi...
Page 39: ...ocess calibration Note Warning This calibration is only active on the zero shift The user calibrates on one point using 1 buffer or the sample to measure The user needs to enter the buffer or sample value for each calibration Values calibration The user has calibrated his electrodes in the laboratory He programs the slope and zero values of 59 16 mV pH he has measured in the laboratory Slope and o...
Page 40: ...ation screen press the EXECUTION mode with ENTER Once the measurement is stable press OK Possibility to change the value Display of motion Note The temperature adjustment limits are between 50 C and 20 C TEMP CALIB EXECUTION T 2 5 C Press ENTER TEMP CALIB 6 8 C 4 2 pH TEMP CALIB 6 8 C 06 8 C TEMP CALIB ...
Page 41: ...of the electrode used Press ENTER to validate the choice Redox calibration Follow the pH calibration procedure in 4 Note In redox calibration the measure unit is mV LIMITS zero shift 250 mV slope shift 70 120 TEMP CALIB PARAMETERS CALIBRATION Select REDOX CALIB PROGRAMMING REDOX CALIB Select EXECUTION ...
Page 42: ...d in the historic menu Press the left function key SELECT to display the next parameters MAINTENANCE Menu When changing an electrode or servicing the instrument the transmitter continues to display measures Note The analogue output value is the value programmed in the mA menu The relay state is not modified DATE 26 03 96 SLOPE 95 ZERO 0 3 pH T 0 2 C PARAMETER DATE 26 03 96 SLOPE 98 ZERO 0 3 pH HIS...
Page 43: ...ning An access code may be required if programmed This menu enables the configuration of the instrument according to its application In this operating mode the measurements the analogue outputs and alarms remain active ALARMS CONTROLLER mA OUTPUTS RS485 PROGRAMMING Select MEASURE ...
Page 44: ...electrode TYPE Glass Antimony Redox Other ISO Pt XX XX pH The isothermal point corresponds to the pH value which does not vary according to the temperature SLOPE XX Indication of the electrode sensitivity in of the theoric value 59 16 mV pH at 25 C Uiso XXXX mV Uiso is the potential of the isothermal point TEMP COMP MEASURE Select ELECTRODE TYPE ISO Pt 1 5 pH SLOPE 95 Uiso 200 mV ELECTRODE Redox ...
Page 45: ...ix 1 compensation according to the sulphate curve 4 84 mg l corresponds to a pH 4 0 to 25 C Matrix 2 compensation according to the ammoniac hydrazine curve 0 272 mg l ammoniac 20 µg l corresponds to a pH 9 0 to 25 C Matrix 3 compensation according to the ammoniac morpholine hydrazine curve 1 832 mg l ammoniac 10 mg l morpholine 50 µg l hydrazine corresponds to a pH 9 6 to 25 C Matrix 4 compensatio...
Page 46: ...choice if the analogue output allocated to measure or temperature pH mV C F TYPE choice of the analogue output type 0 20 mA 4 20 mA LOWER lower limit value programming UPPER upper limit value programming OUTPUT 1 OUTPUT 2 SPECIAL PROG TEST mA OUTPUTS Select AFFECT TYPE 0 20 mA LOWER 10 0 mS UPPER 20 0 mS OUTPUT 1 2 Select pH ...
Page 47: ...TION SYST ALARM TIMER MODE choice of a preset value during calibration alarm system or maintenance last preset live VALUE indication of the preset value 0 to 21 mA TEST TEST menu test the analogue outputs by step of 1 mA 0 21mA MODE VALUE 00 mA SPECIAL PROG Select Preset CALIBRATION SYST ALARM TIMER SPECIAL PROG Select MAINTENANCE VALUE TEST Select 12 mA ...
Page 48: ... 4 The MODE parameter allows to choose the operating mode of the 4 alarms Lim alarms 1 4 System only alarm 3 Timer only alarm 4 MODE No Lim Syst Timer ALARM 1 ALARM 2 ALARM 3 ALARM 4 ALARMS Select MODE ACCEPT Manu RELAY NO ALARM 3 Select Sys MODE INTERV 2440 mn IMPUL Nb 1 Ton 005 s Toff 005 s TmA 00 mn ALARM 4 Select Timer ...
Page 49: ...alue of the limit DIR choice of the direction Up Down DELAY definition of the temporization when the relay interlocking HYST definition of the limit hysteresis thresholds on 10 max RELAY choice of the relays normally open or closed NO NF AFFECT Non LIMIT 20 3 C DIR Up DELAY 30s HYST 10 RELAY NO ALARM 1 Select C F AFFECT Non ALARM 2 Select NO ...
Page 50: ... Choice between a limit on the measure or a timer for the probe cleaning with alarm 4 MODE No Limit Timer INTERV interval between 2 cleaning cycles in minutes IMPUL Nb number of pulses during a cleaning cycle Ton time when relay is activated in secondes Toff time when relay is desactivated in secondes TmA analog output hold time for the analogue outputs in minutes MODE ACCEPT Manu RELAY NO ALARM 3...
Page 51: ...ally 50 about the setpoint Within this neutral band the control element valve dosing pump is always inactive A proportional band XP represents the regulation slope A XP value equal to 100 is defined as a Y controlling value of 100 for a 5 pH or 1000 mV in redox drift according to the neutral zone extremity A power factor Exponent which calculates a controlling value from a lineary exponent 1 or an...
Page 52: ...ntrol Pul Frq S1 in pulse control S2 in frequency control Frq Pul S1 in frequency control S2 in pulse control Value of the setpoint POINT XXXX In pH or mV Neutral zone range zone around the setpoint where the regulation is not activated NEUT Z XXX In pH or mV Reaction time after activating relays S1 or S2 delay time after executing the next period INERTIA XXX In s Maximum time out of the neutral z...
Page 53: ...eleased by pressing ENTER If the TIMER and CONTROLLER functions are activated at the same time the controller is stopped during the timer cycle Any cycle calculated by the transmitter is carried out to the end FREQUENCY CONTROL The pulse width is constant and programmable 0 1 to 0 7 s The pulse period varies according to the sample pH value Off T T T Time On S3 Period T ...
Page 54: ...l system associated to the relay MAX XXX In i min MANUAL MODE Force relay S1 or S2 Pressing the function key associated to the relay the relay is activated till you release the key The corresponding icon is displayed according to the relay state PULSE CONTROL The pulse period is constant and programmable 3 to 60 s It is the cycle quotient α which varies according to the sample pH value Off On S3 T...
Page 55: ...n of the measurement when it is far from the setpoint PULSE FREQUENCY CONTROL OR FREQUENCY PULSE CONTROL The controller may be programmed in a mixed mode Use the Mode command for the programming See paragraphs concerning the frequency control and the pulse control to program the relay S1 and S2 CNTRLLR Yes MODE Imp POINT 7 00 pH NEUT Z 2 0 pH INERTIA 000 s CTL TIME 20 mn RELAY S1 RELAY S2 MANUAL M...
Page 56: ...dd With even parity bit Even STOP BIT 1 bit stop 2 bits stop SWAP WORD Allow to reverse the strong weight light weight size during the manipulation of the real variable float type Some equipments need this reverse to read correctly the real size data The communication protocol is MODBUS JBUS The instrument may be equipped with a RS485 board optional see MODBUS 9100 manual N 4 BAUD 9600 PARITY odd ...
Page 57: ... WARNING An access code may be required if it has been programmed This screen allows to reach the 9135 transmitter configuration screens The display options are detailed page 27 IMPEDANCES AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL mA ADJUST FACTORY SERVICE Select ...
Page 58: ...ment is compensated at 25 C REFERENCE Permits an impedance measurement LOWER defines the lower limit for the impedance measurement This limit is used for the alarm system and the bargraph DISP4 UPPER defines the upper limit for the impedance measurement This limit is used for the alarm system and the bargraph DISP4 TEST Visualizes the impedance measurement value GLASS REFERENCE FREQ 24 0 h TEST IM...
Page 59: ...te the average TEST visualize the difference between a measure done with or without average Note The measurement cycle lasts 4 seconds if there is a temperature measurement and only 2 seconds without temperature measurement S DISPLAY Menu This menu options are describes in page 27 of this manual AVERAGE 9 TEST AVERAGE Select TEST AVERAGE 6 98 pH REAL 6 48 pH TEST ...
Page 60: ...s code for temperature and pH calibrations menu PROG access code for Programming menu SERVICE access code for service menu Note If you have forgotten your access code press simultaneously ESC and ENTER to enter into the menu CALIB PROG 0000 SERVICE 0000 CODE Select 0000 ...
Page 61: ...tter displays the type of instrument and the software version installed S DEFAULT VALUES Menu Note If you press YES you load the default values and you loose the programmed values and the calibration parameters MONEC 9135 pH X XX VERSION Loading default values VAL DEFAULT Yes ...
Page 62: ...mA ADJUST Menu In this menu adjustment of the analogue outputs to 20 mA with an internal coefficient between 9999 9999 S FACTORY menu Factory code necessary The user has no access to this menu OUTPUT 1 OUTPUT 2 ADJUST mA Select VALUE 0000 OUTPUTS 1 2 ...
Page 63: ...es in the bulb Remove the electrode shake it and put it back Unstable display Faulty transmitter Check the transmitter by connecting a pH simulator or a voltage generator instead of the electrode solution not earth grounded Connect the electrode Bubbles on the pH bulb Remove the electrode shake it and put it back Slow drift PH bulb polluted See cleaning instructions Reference clogged See cleaning ...
Page 64: ...il Clean the electrode bulb with detergent and water Rinse the extremity of the electrode with demineralised water Reference electrode junction clogged Heat a KCl solution diluted to 60 80o C Place the clogged part in the hot solution during 10 minutes Cool the electrode in a cold KCL solution If these advice do not ensure a normal response time change the electrode Maintenance No particular maint...
Page 65: ...maged Replace it if necessary The pH value is inferior to 3 pH The pH value is superior to 14 pH The glass electrode impedance is superior to the limits set by the user It is required to change the limits SERVICE IMPEDANCES GLASS UPPER or clean or change the clogged electrode 10 8 pH Pt100 Pt1000 SHORT CIRCUIT 11 4 pH Pt100 Pt1000 OPEN CIRCUIT 1 4 pH MEASURE TOO LOW 13 4 pH MEASURE TOO HIGH 10 3 p...
Page 66: ... SERVICE IMPEDANCES REFERENCE LOWER or change the damaged electrode The reference electrode impedance is superior to the limits set by the user It is required to change the limits SERVICE IMPEDANCES REFERENCE UPPER or clean the clogged electrode or change the poisoned electrode The time out of the neutral zone is superior to the limit programmed by the user It is required to change the limits chec...
Page 67: ...he slope shift is superior to the limit programmed Limits 70 120 T OUT OF LIMITS PH CALIB T 25 0 C T OUT OF LIMITS PH CALIB T 25 0 C The temperature drift is superior to the limit programmed Limits 50 C 20 C ERROR MESSAGES DURING AN IMPEDANCE MEASUREMENT TEST NOTE Press ESC to leave the menu GLASS TEST TOO LOW REFERENCE TOO LOW The impedance measurement is inferior to 5 MΩ for the glass electrode ...
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Page 69: ... the reference electrode but intricate with the glass electrode which has a high impedance Besides for both methods the electrodes need to be withdrawn from the process Electrode defaults usually met are as follows A crack of the glass membrane which shows a low impedance between the sample and the electrode A contaminated electrode deposit which shows a weaker measurement sensibility and an elect...
Page 70: ...trode Two capacities are loaded through the electrode impedance After a certain time which depends on the impedance measured the system measures the potential variation on each electrode The process temperature is measured to compensate the impedance measurement of the glass electrode The impedance measurement drift of the glass electrode according to the temperature is represented by the curve be...
Page 71: ...the liquid earth electrode reference electrode glass electrode according to the case In pH measurement in ultra pure water the very high resistivity of the sample does not allow to determine precisely the reference electrode impedance In fact the liquid impedance is 100 KΩ and represents about 10 times the electrode impedance ...
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Page 73: ... output current by inserting a miliampere meter in the current loop Figure 1 Special control cable for analogue outputs A special cable figure 1 Ref 09125 A 8010 provided as an option gives access when connected to the following signals I1 brown flex I1 yellow flex I2 white flex I2 green flex Reading in mA between the yellow and brown wires gives the current value of output 1 Reading in mA between...
Page 74: ...9125 A 8010 Temp white flex Temp yellow flex PH simulator connections pH simulator can be connected to the electrode connection cable by means of another cable Ref 09135 A 8030 Simulationmeasure red plug Shield cable L 30 cm Simulation reference black plug SK9 screw for connection on pH probe cable Glass electrode imput red plug Reference imput black plug ...
Page 75: ...EASURE ELECTRODE TYPE Glass TEMP COMP MEASURE No TEMP 25 C COMP Nernst ALARMS ALARMS S1 S4 AFFECT pH LIMIT 0 00 pH DIR Down DELAY 000 s HYST 00 RELAY NO mA OUTPUTS OUTPUT 1 AFFECT pH TYPE 0 20 LOWER 00 00 pH UPPER 14 00 pH OUTPUT 2 AFFECT pH TYPE 0 20 LOWER 00 00 pH UPPER 14 00 pH SPECIAL PROG MAINTENANCE MODE Preset TIMER MODE Last CALIBRATION MODE Last SYST ALARM MODE Last ...
Page 76: ...A2 RS485 No 1 BAUD 19200 PARITY No STOP BIT 1 WORD invs YES NO SERVICE IMPEDANCES FREQUENCE 24 0 H GLASS GLASS No REFERENCE REFERENCE No AVERAGE AVERAGE 0 DISPLAY DISPLAY RES 0 01 pH UNIT C LANGUAGE GB CODE CODE CALIB 0000 PROG 0000 SERVICE 0000 ...
Page 77: ...RS485 board option 09125 A 2485 RS485 kit JBUS MODBUS manual board 09125 C 3000 Mounted transmitter housing 425 110 002 Shutter PG 11 for P E 425 110 221 Cable gland PG11 425 130 002 Shutter PG 13 5 for P E 425 135 222 Cable gland PG13 5 351 007 001 Strap FLEXPAC 7 PTS 621 083 062 French instruction manual 621 991 000 JBUS MODBUS communication manual 08362 A 2000 pH electrode 359016 10110 pH elect...
Page 78: ...0 s temperature sensor 08362 A 3001 Pt100 s 3 m cable 08362 A 3002 Pt100 s 10 m cable 08362 A 3003 Pt100 s 20 m cable 08362 A 4000 2 connections 1 8 NPT 6x8 363130 00500 pH 4 solution 500 ml 363131 00500 pH 6 88 solution 500 ml 363132 00500 pH 9 22 solution 500 ml ...
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