Hach POLYMETRON 9125 Operator's Manual

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621=191=025 Issue L Hach Ultra Analytics 11/2005 This instrument conforms to the European Directives: - 89/336/CEE modified by the directive 93/68/CEE - 73/23/CEE modified by the directive 93/68/CEE Warning ! There are no user-serviceable parts in either the transmitter or sensor. Only Hach Ultra Analytics personnel or their authorized representative should attempt repair of the system and only components expressly approved by the manufacturer should be used. Any attempt to repair the instrument in contradiction of these guidelines may result in damage to the instrument and injury to the person making the repair. It will also void the warranty and may compromise the safe operation, electrical integrity or CE compliance of the instrument. Note: This equipment has been tested and found to comply with the limits for Class A digital device, pursuant to Part 15 of the 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 area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Precautionary Labels : Read all labels and tags attached to the instrument. Personal injury or damage to this instrument could occur if not observed. This symbol, if noted on the instrument, references the instruction manual for operation and / or safety information. Electrical equipment marked with this symbol may not be disposed of in European public disposal systems after 12 August of 2005. In conformity with European local and national regulations (EU Directive 2002/96/EC), European electrical equipment users must now return old or end-of life equipment to the Producer for disposal at no charge to the user. Note : For return for recycling, please contact the equipment producer or supplier for instructions on how to return end-of-life equipment for proper disposal. Important document. Retain with product records. !

Page 1 Table of contents 1. General presentation of the conductivity / resistivity measure system ................................................................................................. 3 Presentation of the 9125 transmitter ................................................................................3 Introduction.......................................................................................................................4 Conductivity measurement...............................................................................................4 Characteristics..................................................................................................................6 2. Installation of the transmitter.......................................................... 11 Unpacking of the transmitter 9125 .................................................................................11 Advice for installation......................................................................................................11 Dimensions.....................................................................................................................12 Mounting types ...............................................................................................................13 3. Electric connections ........................................................................ 17 Electronic board lay-out in the 9125 transmitter enclosure ............................................17 Main connection .............................................................................................................20 Relays connections ........................................................................................................21 Sensor connections........................................................................................................22 4. Using the 9125 transmitter .............................................................. 23 Utilization rules for the menus ........................................................................................23 Modification of a value....................................................................................................24 Measures display............................................................................................................24 Main display....................................................................................................................25 Display options ...............................................................................................................25 Display options ...............................................................................................................26 Choice of the language.....................................................................................26 S/DISPLAY Menu .............................................................................................26 UNIT choice....................................................................................................................27 TDS choice.....................................................................................................................27 Temperature UNIT choice ..............................................................................................27 Concentration measure (TDS)........................................................................................28 Limits of the TDS measure.............................................................................................28 5. Programming the transmitter.......................................................... 29 Main menu......................................................................................................................29 Calibration Menu ............................................................................................................30 Conductivity calibration.....................................................................................30 Select to "Programming" and press enter. ...........................................30 Type of calibration ............................................................................................31 2 point calibration .................................................................................32

Page 2 1 point calibration .................................................................................32 Execution of a 2 point calibration .........................................................33 TDS measure calibration ..................................................................................34 Temperature electric calibration / Resistor adjust ................................35 Process calibration ...............................................................................35 PARAMETERS Menu.....................................................................................................36 HISTORIC Menu ............................................................................................................36 MAINTENANCE Menu ...................................................................................................37 PROGRAMMING Menu..................................................................................................38 S/MEASURE Menu ..........................................................................................39 PROBE.................................................................................................39 TEMPERATURE COMPENSATION ....................................................40 TDS coefficient adjusting......................................................................40 S/mA OUTPUTS Menu.....................................................................................41 OUTPUT 1/2.........................................................................................42 S/ALARMS menu .............................................................................................43 ALARM 1/2 (limit) .................................................................................44 ALARM 1/2 (USP) ................................................................................44 USP mode ............................................................................................45 ALARM 3 (Alarm system).....................................................................47 ALARM 4 (Timer)..................................................................................47 S/SPECIAL PROG. Menu ................................................................................48 TEST ....................................................................................................48 S/RS485 Menu .................................................................................................49 SERVICE Menu..............................................................................................................50 S/POLARIZATION Menu..................................................................................51 CABLE CAP. ........................................................................................51 TEST ....................................................................................................51 S/AVERAGE Menu...........................................................................................52 S/CODE Menu..................................................................................................53 S/SOFT ISSUE Menu.......................................................................................54 S/DEFAULT/VALUES Menu.............................................................................54 S/mA ADJUST Menu........................................................................................55 S/FACTORY Menu ...........................................................................................55 6. Polarization ....................................................................................... 57 Electric representation of the probe and its cable ..........................................................57 Frequency adjustment according to the conductivity measurement ..............................58 Automatic adjustment of the frequency..........................................................................59 7. Error messages ................................................................................ 61 Appendix A : Default values.................................................................A1 Appendix B : Spare parts list ...............................................................B1

Page 3 1. General presentation of the conductivity / resistivity measure system Presentation of the 9125 transmitter The 9125 transmitter and associated measuring sensors has been designed for measuring and continuous control of conductivity and resistivity (with possibility of temperature measurement) in industrial process. Note : The programming is displayed in 6 languages. To modify this parameter see § 4 " Display Menu – Choice of the language ".

Page 4 Introduction The 9125 transmitter is a user-friendly instrument (installation, programming), equipped with a microprocessor it can be configured to correspond to any application in the following sectors : � drinking water, � waste water, � process (chemistry, paper mills, sugar mills...), � measurement in pure/ultrapure water (energy power plants, semiconductor industry, chemistry). The 9125 transmitter should be connected to a probe via a cable. Conductivity measurement The electric conductivity measures the transport of electric charges in any field. In metal conductors, the current flows by transport of electrons, whereas in solutions, it flows by transport of ions such as Na+ and Cl- which ensure the transport of charges. The higher the transport of charges is, the greater is the conductance of the solution. Conductivity is the capacity a solution has to conduct current. In solution, conductivity is much more complicated than in conductors because several species ensure the transport of charges. For instance, in drinking water the conductive species registered are sodium, calcium, magnesium, ferrous cations, ferrites, phosphates and nitrate ions. For slightly concentrated solutions, the concentration of H+ protons and hydroxyl OH- ions (stemming from the weak dissociation of the water [H+] = [OH-] = 10-7 mol/l to 25°C) can no longer be neglected in the presence of the product, this therefore leads to a non-linear variation Conductivity/Concentration.

Page 5 Mobility of these species in an electric field depends naturally on their size, weight, transport charge, viscosity of the field. The greater the concentration of the species is, the greater the interactions between these ionic species is. Principle of electrolytic conductivity Ohm’s law specifies that the current circulating in the dipole is proportional to the difference in potential and resistance of this dipole : I = E / R The resistance of a homogenous environment depends on the geometry of the resitivity (characteristic of the material) : R = r . 1/K Where "r" is the resistivity in Ohm.cm and "K", the cell constant in cm-1.

Page 6 Characteristics The 9125 is equipped with an input measurement channel : a conductivity probe, 2 electrodes and inductive may be connected as well as a temperature Pt100 or Pt1000 probe. The 9125 is also equipped with 2 analogue outputs (0 or 4-20 mA). Options available on request � board with 4 relays � RS485 board MAIN SPECIFICATIONS Package Delivered with instruction manual, 4 cable glands and 2 mounting screws and a specifications conformed certificate Maintenance No particular maintenance required. Clean the instrument with a soft tissue and without any aggressive agent OPERATING CONDITIONS Ambient temperature -20°C...+60°C Relative humidity 10...90% Power supply voltage fluctuation � 10 % Over voltage category 2 Pollution degree 2 (as CEI 664) Altitude < 2000 m Measurement category I (overvoltage less than 1500 V) ELECTRIC CHARACTERISTICS Power supply voltage � Standard version (� 10 %) : - 100 V ... 240 VAC 50/60 Hz � Low voltage version: - 13...30 VAC 50/60 Hz - 18...42 VDC

Page 7 Connections 2,5 mm2 screw terminals Fuse 5 x 20 mm Cartridge T2AL - 250 V Consumption 25 VA European standards EN 61326-1997 and EN61326 A1-1998 (Industrial level for immunity) EN- 61010-1 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 x PG13.5 2 x PG11 PERFORMANCE 2 electrode probe Cell constant 0,01 cm-1 0,1 cm-1 1 cm-1 Conductivity range 0,01 �S/cm...200 �S/cm 0,10 �S/cm...2 mS/cm 1 �S/cm....20 mS/cm 2 electrode probe Cell constant 0,01 cm-1 0,1 cm-1 1 cm-1 Resistivity range 5 k�.cm...100 M�.cm 0,5 k�.cm...10 M�.cm 50 �.cm...1 M�.cm Inductive probe Cell constant 1 cm-1 2,35 cm-1 10 cm-1 Conductivity range 100 �S/cm...1 S/cm 200 �S/cm...2 S/cm 1 mS/cm...10 S/cm

Page 8 Inductive probe Cell constant 1 cm-1 2,35 cm-1 10 cm-1 Resistivity range 1�.cm...10 k�.cm 0,5 �.cm...5 k�.cm 0,1 �.cm...1 k�.cm Ambient temperature range -20°C...+200°C (-4…392 °F) Display resolution Conductivity/resistivity : automatic point drift (min. resolution 0.001 �S/cm) < 0.1 °C Accuracy Inductive : K=1 : � 2% of the displayed value or ��0,002 mS K=2,35 : � 2% of the displayed value or ��0,004 mS K=10 : � 2% of the displayed value or ��0,02 mS 2 electrode : � 1% of the displayed value temperature < � 0.4 °C Temperature sensor Pt 100 / Pt 1000 Temperature compensation - No - Automatic - Manual Automatic temperature compensation range -20 ... 200 °C -4 ... 392 °F Temperature compensation range Linear Non linear : - ultrapure water, HCl and NaCl Sensor types - 2 electrode sensor - Inductive sensor Cable length 100 m maximum CALIBRATION Conductivity calibration type - Electric - 2 points - 1 point Slope matching 50 ... 150 %

Page 9 Temperature calibration � 20 °C ( � 36 °F) ANALOGUE OUTPUT Output signals 2 galvanicly outputs insulated Allocation Conductivity/resistivity/temperature Type 0 ... 20 mA 4 ... 20 mA Mode Linear Dual Logarithmic Maximum load 800 � Accuracy 0.1 mA ALARMS Alarm number 4 Function - Standard limits - Limits according to USP standard - Alarm system - Timer Hysteresis 0 ... 10% Temporisation 0 ... 999 s Breaking power (resistive load) 250 V AC, 3A max 100 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. RS485 Baud rate 300 ... 19200 bauds Insulation Galvanic Station number 32 max

Page 10 � PROGRAMMING Language French English German Italian Spanish Dutch Display Icones + graphic zone (80*64 pixels) Protection codes Calibration Programming Service

Page 11 2. Installation of the transmitter Unpacking of the transmitter 9125 Inspect the package at the reception to detect an eventual damage due to the transport. Make sure the package contents are not damaged. Check if the package corresponds to your order : � quantity delivered, � type of instrument and version accordingly to the instruction plates, � accessories : 4 cable glands and 2 mounting screws + flanges, � instruction manual, � certificate of conformity to specifications. Advice for installation Choose a site where : � vibrations are not too excessive, � supply relays or commuters are away, � maintenance will be easy. Note : Information : It is preferable to mount the instrument above eye level, allowing an unrestricted view of the front panel displays and controls.

Page 12 Dimensions (Dimensions are in mm [inches]). Fig. 2.1 Transmitter 9125 dimension

Page 13 Mounting types 3 possibilities to mount the instrument (use of the red clamping bow) : The transmitter housing conforms to norm 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 2.2 Panel mounting Panel cutting 138 x 138 mm (5.4 in. x 5.4 in.) Front panel dimensions 144 x 144 mm (5.8 in. x 5.8 in.) Thickness panel Inferior to 8 mm

Page 14 Wall mounting : � 2 screws � 4 mm lg 60 flat head (not provided)/ 80 mm center distance Fig. 2.3 Wall mounting

Page 15 � Pipe mounting : � � 2" maximum - 2 screws � 4 mm lg 60 (provided) Fig. 2.4 Vertical mounting Fig. 2.5 Horizontal mounting

Page 17 3. Electric connections Electronic board lay-out in the 9125 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. Choice between an inductive (all 4 switches on position I) or a 2 electrode (Kohlraush) probe (all 4 switches on position K) 6. Programmed EEPROM 7. Conductivity module 8. Power supply board 9. Program update connector 7� 1� 2� 3� 4� 5� 6� 8� 9�

Page 18 ________________________________________________________________________ Fig. 3.2 9125 shielded plate Electric connections are realised on the terminal inside the housing. Put the cables into the appropriated openings. � The main supply and relay cables should be dispatched via the openings behind the shielded plate. To remove the plate, unscrew the fixing screw on the left side of the plate. � Sensor and mA output cables should be dispatched via the openings provided on top of the shielded plate. � Check the creeping of the cables when opening the transmitter. � It is required to use shielded cables. The shielding should be connected to the earth central shielding. 80°.

Page 19 ________________________________________________________________________ Fig. 3.3 Power and relays connections 1. Terminal block connections Analogue outputs 4-20 mA 2. Terminal block connections "option RS 485" 3. Terminal block connections of the conductivity sensors 4. Earth 1 3 2 4 4-20 mA Sensor

Page 20 Main connection Electrical connection should be performed only by qualified personnel. For the base model, the power supply accepts 100-240 VAC � 10 %, (50/60 Hz) without changes in configuration. Before switching the transmitter, make sure the site voltage corresponds to the instrument voltage indicated on the identification plate. The terminal block for power connections can be lifted from its header for easier installation. For safety reasons, it is required to observe the precautions below : � Use a three wire mains supply cable (2 core + PE) with a cross section between 0.35 and 2 mm² (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 off phase and neutral in case of electrical problems or when the user wish to service the instrument. However the power supply earth must always be connected. � Cabling should be specified for a minimum of 80°C (176°F). Note : Before servicing the instrument, ensure that the power supply is switched off.

Page 21 Relays connections The 9125 is equipped with 4 relays. Relay S4may be configured as a temporized relay. The nominal value of the cutoff current of each relay is 2A for 250 Vca or 0,5 A for 100 Vcc. Cabling should be specified for a minimum of 80°C (176°F). See figure 3.1 page 17 for connection location. � S1 is located on the upper part of the terminal and S2, S3 and S4 under. Each relay is connected to a 2 separated contact terminal, which may be removed to facilitate the installation. � The relay operation is configured in the software but the relay switches are always open when the unit is switched off. Output current connections (mA output) The transmitter has two analogue outputs, which may be set in 0-20 or 4-20 mA and which are galvanicly insulated from the controller. Maximum load for each output is 800 �. See Figure 3.1 page 17 for the terminal location. � Use a signal cable with shielded twisted pair with the earth shielding in the transmitter. � Connect the cable to the terminal according to the drawing on the shielded plate.

Page 22 Sensor connections The conductivity sensors have a double shielding, the first one is connected the CPU board, the second one (external) is connected to earth on the shielded plate. Execute the connections according to the following table : Kohlrausch Inductives TEMP+ blue green TEMP- black yellow IN white white OUT red brown GND internal shield internal shield (X2) external shield external shield � Use only Hach Ultra Analytics supplied cables. Using other types of cables does not ensure the conformity to the electromagnetic compatibility standards.

Page 23 4. Using the 9125 transmitter Utilization rules for the menus The user interface of the 9125 transmitter is made of a display screen and 4 keys. The (Esc) key is used to go back to the previous menu. The (Enter) 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 Select Choose a menu Main Go back to the main display principal Menu Display the main menu Disp2 Display screen 2 Disp3 Display screen 3 OK Validate the measure during a calibration - Increase a value + Decrease a value 26.8 mS/cm 25.0°C Disp2 Menu S1 S2 S3 S4

Page 24 Modification of a value The highlighted digit may be modified with the key . Each digit can be validated by pressing ENTER. Repeat both operations for each digit. Note : � If you do not use 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 � Function keys 26.8 mS/cm 25.0°C Disp2 Menu S1 S2 S3 S4 � � � � �

Page 25 Main display � � � � � � � � 26.8 mS/cm : conductivity measurement 25.0 °C : temperature measurement S1...S4 : alarm status (invisible if alarm inactive). Display 2 S1...S4 : alarm status S1 : activated by a temperature > 30.0°C S2 : inactive : S3 in alarm system S3 closed by a 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. 26.8 mS/cm 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 Main

Page 26 Display options Choice of the language English is the default language. You can choose an other language available (French, German, Italian, Spanish or Dutch) by following the procedure below : � Use the right function key MENU. � Use the left function key (Select) to select the menu SERVICE and press (Enter). � In the menu SERVICE, use the left 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 display of conductivity/resistivity measurement. � S/cm � �.cm � S/m � �.m � TEMP. : choice of the temperature measurement. � °C � °F � LANGUAGE : choice of the message language. � French, � English, � German, � Spanish, � Italian, � Dutch. � Press Esc to go back to the DISPLAY menu. � CALIBRATION MAINTENANCE PROGRAMMING SERVICE MENU Select SERVICE � POLARIZATION AVERAGE CODE SOFT ISSUE DEFAULT VAL. Ma ADJUST FACTORY SERVICE Select DISPLAY � UNIT : S/cm TDS : NO TEMP. : °C LANGUAGE : DISPLAY Select GB

Page 27 UNIT choice As the language used, it’s possible to choose the units of the measures in which they will be display. � Unit. allows to choose one of the units in conductivity or resistivity in which values will be done. � S/m � �.cm � S/cm � �.m TDS choice � TDS : yes/no. When the option TDS is selected (Yes), the measurements will be displayed in concentration units : in ppt (pare per thousand), ppm (part per million) ppb (part per billion) according to the measurement level. When the option TDS is not selected (No), measurements are displayed in �.cm or S/cm according to the unit selected ; Menus for calibration of the TDS measurement are not displayed anymore. Temperature UNIT choice Allow to choose a temperature display between Celsius or Fahrenheit degree. � UNIT : S/cm TDS : NO TEMP. : °C LANGUAGE : GB DISPLAY Select S/cm � UNIT : S/cm TDS : TEMP. : °C LANGUAGE : GB DISPLAY Select YES � UNIT : S/cm TDS : YES TEMP. : °C LANGUAGE : GB DISPLAY Select °C

Page 28 Concentration measure (TDS) The Total Dissolved Solid (TDS) measure is a concentration measure in the limits of measure where, for a part given, the concentration of the solution is proportional to its conductivity. The next board show for the mains solutions, the relations existing between concentration and conductivity (in ppm). The white part of the board show the limits where the TDS display is possible. The measure in concentration (TDS) is given by the formula : TDS = Cond x KTDS The KTDS coefficient is calculated during the process calibration of the device. It must be between 0.00 and 5.00. If it is not in this interval, an error message will display during the calibration. Limits of the TDS measure For different substances, the limits of the measure where the concentration is proportional to the conductivity is given by the white part of the next board: The unit of the conductivity is μs/cm. Weight % ppm NaCl NaOH NH4OH NH3 HCl H2SO4 HNO2 HF SO2 Acid Acetic 0,0001 1 2,2 6,2 4,1 6,6 11,7 8,8 6,8 10 6,4 4,2 0,0003 3 6,5 8,3 8,3 12 50 61 20 30 18 7,4 0,001 10 21,4 61,1 17 27 116 85,6 67 99 54 15 0,003 30 64 182 31 49 340 251 199 290 150 30,6 0,01 100 210 603 58 84 1140 805 657 630 450 63 0,03 300 617 1780 102 150 3390 2180 1950 1490 1200 114 0,1 1000 1990 5820 189 275 11100 6350 6380 2420 3600 209 0,3 3000 5690 16900 329 465 32200 15800 18900 5100 7900 368 1 10000 17600 53200 490 810 103000 48500 60000 11700 17200 640 3 30000 48600 144000 790 1110 283000 141000 172000 34700 32700 1120 5 50000 78300 223000 958 1115 432000 237000 275000 62000 42000 1230 10 100000 140000 358000 1115 1120 709000 427000 498000 118000 61000 1530 20 200000 225000 414000 968 4251 850000 709000 763000 232300 1600 30 300000 292000 725 732000 828000 861000 390000 1405 40 400000 191000 460 770000 820000 1080 50 500000 150000 620000 717000 740 75 750000 182000 340000 168 100 1000000 10000 50000 1

Page 29 5. Programming the transmitter Main menu The main menu gives access to 4 main functions of the instrument : � The 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 30 Calibration Menu Note : Before any calibration launching, check the parameters of the MEASURE menu (probe type, temp. Comp.) Are correctly configured. (See page 25). This option allows to calibrate the conductivity measure, the temperature measure and to display the concentration measure (TDS). Conductivity calibration With the help of the « select » function touch, choose COND. CALIB. option. Two options appears : � PROGRAMMING allows to choose the electric conductivity calibration type : � 2 points � 1 point. � EXECUTION will allow to do the desired calibration type. Select to "Programming" and press enter. Select the calibration type and press enter. � TDS CALIB. COND. CALIB. TEMP.CALIB. PARAMETERS HISTORIC CALIBRATION Select � EXECUTION PROGRAMMING COND. CALIB. Select � EXECUTION PROGRAMMATION COND. CALIB. Select PROGRAMMING � ETALONNAGE MAINTENANCE PROGRAMMING SERVICE MENU Select CALIBRATION

Page 31 Type of calibration � With a 2 electrode probe For the first point, remove the probe from liquid or unscrew the connector from the probe. For the second point connect a resistance to the IN/OUT terminal of the conductivity module. � With an inductive probe For the first point, remove the probe from liquid. For the second point connect a resistance with a looped wire through the probe. � TYPE : Elect. R = 200 � COND. CALIB. Select

Page 32 2 point calibration For the first point, remove the probe from liquid or unscrew the connector from the probe (2 electrode probe) in a known concentration solution. The user enters this solution value when calibrating. 1 point calibration Immerse the probe in a known concentration solution. The user enters this solution value when calibrating. Note : Warning ! This calibration is only active on the slope The first point of the electric calibration and 2 point calibration enables to realise an internal electronic calibration and to measure the cable capacity with a 2 electrode probe. It is mandatory to realise one of both calibrations when starting the MONEC D9125 for the first time.. For the second calibration point use a resistance or a solution with a significant difference from the first point. � TYPE : COND. CALIB. Select 1 pt � TYPE : COND. CALIB. Select 2 pts

Page 33 EXECUTION Execution of a 2 point calibration Program the manual 2 point calibration and execute it as follows : � Remove the electrode from liquid. � When the measure is stable, the instrument goes automatically to next step. The symbol flashes 10 to 20 seconds. � Press ENTER to accept the zero calibration. � Immerse the probe in the calibration solution � When the measure is stable, press OK. � Change the value displayed if you want. � Modify the date of the calibration if necessary by pressing on the right function touch . To validate the calibration parameters press ENTER. ESC does not validate the parameters and the former calibration parameters are kept. � EXECUTION PROGRAMMING COND. CALIB. Select EXECUTION � PROBE OUT Press ENTER COND. CALIB.

Page 34 TDS measure calibration This option is available only if you have selected the measurement TDS in the menu DISPLAY. Select with the function key Choice CALIB TDS in the menu CALIBRATION and press ENTER. This calibration permits to adjust the coefficient K TDS between the concentration value and conductivity. The measurement TDS is displayed as well as the conductivity value as secondary measurement. Proceed to the following steps : � Press the function key OK. � Change the displayed value and enter the sample value (TDS). � The instrument indicates the result of the coefficient calculation TDS and press ENTER. Temperature calibration With the help of the right function touch choice, select the programming line and press ENTER. The right function touch allow to select 2 types of calibration, electric or process. � 6.98 ppm 9.90 K� CALIBRATION � 6.98 ppm 06.98 ppm CALIBRATION 0

Page 35 Temperature electric calibration / Resistor adjust This calibration is factory realised. Used to realise an electric calibration for the Pt100 measurement. 2 resistances of known values should be connected to the temp + and temp - of the module measure. This resistors should have a precision about 0,1%. Proceed as follows : � Launch the calibration when you have configured an electric calibration. Lancer l'exécution après avoir configuré l'étalonnage en étalonnage électrique. � The transmitter requires the connecting of the first resistance. � Press Enter. � Repeat the same procedure for the second resistance. Process calibration Proceed as follows after you have configured a process calibration : � Wait till the measurement is stable and press the right function key OK. � You have the possibility to change the value � Press Enter. � The instrument executes a zero adjustment required to display the value configured. � RESISTANCE 1 Press ENTER TEMP. CALIB. � 189.9 189.9°C TEMP. CALIB. 1 � TYPE : RES1 : 100 � TEMP. CALIB Elect.

Page 36 PARAMETERS Menu This menu displays the calibration parameters of the conductivity measurement. Date of last calibration. This date is the date the user has entered after a conductivity calibration ( electric, 2 points, 1 point). The other parameters are those which are displayed when the date is registered : � Slope of the last calibration which is a correction factor of the conductivity probe slope. � Si la mesure est effectuée en TDS, le coefficient de proportionnalité entre la conductivité et la concentration. � Drift of the temperature measurement. HISTORIC Menu This menu displays the conductivity slopes corresponding to the last two conductivity calibrations and allows to follow the probe clogging. � DATE : 01/01/01 SLOPE : 100% COEFF : 0.50 �T : -0.0°C PARAMETERS � DATE : 01/01/01 SLOPE : 100% HISTORIC

Page 37 MAINTENANCE Menu When changing or cleaning a probe or servicing the instrument, the transmitter continues to display measures. The analogue output value is the value programmed in the mA menu. The relay status is not modified. � 6.98 mS/cm 26.4°C MAINTENANCE

Page 38 PROGRAMMING Menu Note : Warning ! 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. � MESURE SORTIES mA ALARMES RS485 PROGRAMMATION Choix MESURE � MESURE mA OUTPUTS ALARMS RS485 PROGRAMMING Select MEASURE

Page 39 S/MEASURE Menu The PROBE menu allows to configurate the utilized probe type, TEMP. COMP. the temperature compensation, TDS the TDS measure coefficient when it is actived. PROBE This menu allows to choose the utilized probe for the conductivity measure. TYPE : - Induct. - 2 elec. choice of the electrode : Inductive or 2 electrodes Note : Check both switches of the conductivity module are correctly positioned : - K : 2 electrodes - I : inductive K : XXXX Adjustment of the cell constant. FREQ. : - Auto - 8000 - 4000 - 2000 - 1000 - 500 - 250 - 125 - 62,5 Choice between an automatic adjustment of the frequency according to the measurement or one of the pre-programmed frequencies. (see Chapter 5 for further details). Only if elect. 2 type has been selected. � TEMP. COMP. TDS : � MEASURE Select PROBE � TYPE : 2 élect or inductive K : 001.00 FREQ. : PROBE 2 elect. 0.50 Auto

Page 40 TEMPERATURE COMPENSATION MEASURE : - No - Pt 100 - Pt1000 Choice of a temperature measurement with or without Pt100 / Pt1000. TYPE : - No - Auto. - Manual Choice between no temperature compensation or an automatic or a manual temperature compensation mode. TEMP. : XX Possibility to enter the sample temperature in a manual compensation. TREF : XX Possibility to enter the reference temperature. COMP. : - Coef. - HCl - NaCl Possibility to choose the temperature compensation. COEF : XX Possibility to enter the coefficient value. TDS coefficient adjusting TDS coefficient adjusting is directly in the MEASURE menu. Utilize the left function touch to choose the TDS adjusting. TDS : Choose the TDS coefficient which is necessary to calculate the solution concentration. Utilize the right function touch to choose a value between 0 and 5. � MEASURE : TYPE : Manual TEMP. : 15°C TREF. : 025.0°C COMP. : Coeff. COEF. : 2.0% TEMP. COMP. Select Pt100 � PROBE TEMP. COMP. : TDS : 0.50 � MEASURE Select 0.50

Page 41 S/mA OUTPUTS Menu This menu allows to adjust analogue outputs. � OUTPUT 1 OUTPUT 2 SPECIAL PROG. TEST mA OUPUTS Select

Page 42 OUTPUT 1/2 � AFFECT. : choice if the analogue output allocated to measure or temperature. � S/� � °C/°F � TYPE : choice of the analogue output type. � 0/20 mA � 4/20 mA � MODE : choice of operating mode : linear, logarithmic or dual. * In logarithmic mode , the beginning of range should be different from 0. � Lin � Log � Dual � LOWER : limit value programming. � MIDD. : middle value only in dual mode. � UPPER : upper limit value programming. � AFFECT. : TYPE : 0/20 mA MODE : Dual LOWER : 10.0 mS MIDD : 15.0 mS UPPER : 20.0 mS OUTPUT 1/2 Select S

Page 43 S/ALARMS menu This sub-menu allows to reach the configuration of alarms 1 to 4. The MODE parameter allows to choose the operating mode of the 4 alarms : - Limit : alarms 1...4 - USP : only alarms 1 and 2 - System : only alarm 3 - Timer : only alarm 4 MODE : � No � Limit � USP � System � Timer � ALARM 1 ALARM 2 ALARM 3 ALARM 4 ALARMS Select � MODE : Syst ACCEPT : Manual RELAY : NO ALARM 3 Select System � MODE : Timer INTERV : 2440 mn Impul. Nb : 1 Ton : 005 s Toff : 005 s TmA : 20 mn ALARM 4 Select Timer

Page 44 ALARM 1/2 (limit) � AFFECT. : choice of a limit on the measurement or on the temperature. � No � S/� � °C/°F � LIMIT : value of the limit. � DIR. : choice of the direction : � Up � Down � DELAY : definition of the temporisation when the relay is interlocking (in seconds). � HYST : definition of the hysteresis in % (10% max). � RELAY : choice of the relays normally opened or closed. � NO � NF ALARM 1/2 (USP) � � The TEMP menu allows the temperature to be entered in cases where no measurement is provided by Pt100/Pt1000. If temperature is measured automatically, this menu is not displayed. � The LEVEL menu is used to set the safety margin with respect to the USP standard: with a level of 50%, the 1.9 μS/cm threshold (50°C) drops to 0.95 μS/cm. � AFFECT. : Non LIMIT : 20.3°C DIR. : Up DELAY : 30s HYST. : 10% RELAY : NO ALARM 1 Select °C/°F � MODE: TEMP: 25.0 °C LEVEL: 100% TAB: P.W. RELAY: NO ALARM 2 Select USP

Page 45 � The TAB menu is used to configure the stored USP curve: W.F.I. (Water For Injection) or P.W. (Pure Water). USP mode USP is a standard used in the pharmaceutical industry. It recommends the use of a non temperature- compensated conductivity measurements and sets the upper limits of acceptable conductivity for USP- compliant water according to temperature. The alarm delivered therefore varies according to the measured temperature. For this, the instrument possesses two stored curves: � a curve (W.F.I.) for conductivity measurements in high purity water or for injectable preparations (cf. table 1), � a curve (P.W.) for conductivity measurements in purified water (cf. table 2). NB: This function is only possible in 2 electrode measurements and when temperature compensation has been deactivated. T°C Non- compensated conductivity �S/cm T°C Non- compensated conductivity �S/cm T°C Non- compensated conductivity �S/cm 0 0.6 35 1.5 70 2.5 5 0.8 40 1.7 75 2.7 10 0.9 45 1.8 80 2.7 15 1.0 50 1.9 85 2.7 20 1.1 55 2.1 90 2.7 25 1.3 60 2.2 95 2.9 30 1.4 65 2.4 100 3.1 Table 1 - Temperature curve and conductivity requirements for high purity water or for injectable preparations (non temperature-compensated conductivity measurements).

Page 46 Example: if the measured temperature is equal to 22°C, the threshold is of 1.1 �S/cm and shall remain at this value as long as the temperature stays at 22°C. If the temperature varies, rising to 25°C, the threshold automatically switches to 1.3 �S/cm. NB: The delivered alarm corresponds to the value of the threshold associated with the USP temperature immediately below the measured temperature (i.e. 20°C and 25°C in the previous example). T°C Non- compensated conductivity �S/cm T°C Non- compensated conductivity �S/cm T°C Non- compensated conductivity �S/cm 0 2.4 35 5.95 70 9.1 5 3.0 40 6.5 75 9.7 10 3.6 45 6.8 80 9.7 15 3.95 50 7.1 85 9.7 20 4.3 55 7.6 90 9.7 25 5.1 60 8.1 95 9.95 30 5.4 65 8.6 100 10.2 Table 2 - Temperature curve and conductivity requirements for purified water (non temperature-compensated conductivity measurements).

Page 47 ALARM 3 (Alarm system) � In case of an alarm 3, choice between a limit alarm or alarm system function. MODE : � No � Limit � System � In case of an alarm system, choice between an automatic accept or a manual accept. ACCEPT : � Auto � Manu � Choice between relays normally open or closed. RELAY : � NO � NC ALARM 4 (Timer) � In case of an alarm 4, choice between a limit or a timer function. MODE : � No � Limit � Timer � INTERV : interval between two cleaning cycles in minutes. � Impul. Nb : number of pulses during a cleaning cycle. � Ton : time when relay is activated, in seconds. � Toff : time when relay is desactivated, in secondes. � TmA : hold time for the analogue outputs in minutes. � MODE : Syst ACCEPT : Manu RELAY : NO ALARM 3 Select System � MODE : Timer INTERV : 2440 mn Impul. Nb : 1 Ton : 005 s Toff : 005 s TmA : 00 mn ALARM 4 Select Timer

Page 48 S/SPECIAL PROG. Menu This screen allows to adjust 4..20 mA outputs states in special events : � MAINTENANCE � CALIBRATION � SYST. ALARM � MODE : choice of a preset value during calibration, alarm system or maintenance or timer. � 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 SPECIAL PROG. Select MAINTENANCE � VAL : � TEST Select 12 mA

Page 49 S/RS485 Menu This option requires the RS485 kit. N° Monec number (0...32) BAUD 300/600/1200/2400/4800/9600/19200 Transmission speed in bauds PARIT. - Without parity bit : No - With odd parity bit : Odd - With even parity bit : Even BIT STOP - 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 equipment 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 PARIT. : odd BIT STOP : 1 SWAP WORD : NO RS485 4

Page 50 SERVICE Menu Note : An access code may be required if it has been programmed. This screen allows to reach the 9125 transmitter configuration screens. The display options are detailed page 26. � POLARIZATION AVERAGE DISPLAY CODE SOFT ISSUE DEFAULT VAL.. mA ADJUST FACTORY SERVICE Select

Page 51 S/POLARIZATION Menu This menu is displayed only if you use a 2 electrode probe. CABLE CAP. CABLE measure the electrode cable capacity. It is mandatory to disconnect the probe connector to measure the capacity or to make an electric calibration. TEST TEST measure the electrode polarization (see Chap. 5). An error message is displayed if the polarization is superior to 0,25. � CAP. CABLE TEST POLARIZATION Select � CAPACITY 1.02 nF CABLE CAP. � POLARIZATION 0.15 TEST CABLE CAP.

Page 52 S/AVERAGE Menu S/AVERAGE menu program a moving average on the measurement. AVERAGE : define the number of measures to calculate 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. � AVERAGE 28.3 mS/cm REAL 27.9 mS/cm TEST � AVERAGE : 9 TEST : AVERAGE Select TEST :

Page 53 S/CODE Menu � CALIB. : access code for temperature and conductivity 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 54 S/SOFT ISSUE Menu The transmitter 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 9125 Cond X.XX SOFT ISSUE � Loading values default ? DEFAULT/VAL. Yes !

Page 55 S/mA ADJUST Menu 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 mA ADJUST Select � VALUE : 0000 OUTPUT 1/2 - +

Page 57 6. Polarization Electric representation of the probe and its cable In a conductivity measurement with a 2 electrode probe the measurement current is transmitted via the electrodes. The current is ensured by electrons in the electrodes and by ionic migration in the solution measured. An electron exchange process occurs between the solution and the electrodes. A significant example below : 2 H2O=H+ + O2 + 4e- and 2 H2O +2e- = H2 +2 OH- This reaction requires energy and causes a potential difference which does not rely on conductivity. This phenomenon is known as polarization and may be represented by the scheme below : Cp Rx Cc V Polarization Conductivity Cable capacity Rp electric equivalent of the conductivity probes

Page 58 where : The dipole Rp, Cp represents the active and reactive part of the energy necessary to the electron exchange between the sample and the electrodes. and : Cc : the cable capacity Frequency adjustment according to the conductivity measurement 0,1 1 10 Cond (theo.) / Cond (meas.) 1E1 1E2 1E3 1E4 1E5 real conductivity (uS/cm) Auto frequency 62.5 Hz 8000 Hz Probe 8317 (K=1) 100 m of cable In the example below 3 measuring ranges are described : � measuring range 1 μS/cm to 100 μS/cm : When the measuring frequency is high, the cable capacity becomes important and induces an error in the conductivity measurement. If you use a long cable, use the lowest frequency possible.

Page 59 � measuring range 100 μS/cm to 1 mS/cm : In this measuring range the cable capacity or the polarization are negligible and do not perturb the conductivity measurement. � measuring range 1 mS/cm to 20 mS/cm : When the measuring frequency is low, the polarization becomes important and induces an error in the conductivity measurement. It is required to use a high frequency. Automatic adjustment of the frequency The 9125 adjusts automatically the measurement frequency according to the conductivity measured, the cable capacity and the polarization. The cable capacity is measured in the calibration of the first calibration point or in the menu SERVICE\POLARIZATION\CABLE CAPA. Polarization is regularly measured and an error message is displayed if it is too high.

Page 61 7. Error messages Note : In manual acquittal, in order to suppress an error message press ENTER after correcting the default. ERROR MESSAGE DESCRIPTION/POSSIBLE CAUSE � Sensor not correctly connected Temperature sensor damaged Replace it if necessary. � Sensor not correctly connected Temperature sensor damaged Replace it if necessary. � The resistivity value is inferior to the lower limit of the measuring range. � The conductivity value is superior to the upper limit of the measuring range. � The electrode polarization is too high. 10.3 mS/cm Pt100/Pt1000 SHORT CIRCUIT 12.7 mS/cm Pt100/Pt1000 OPEN CIRCUIT 60 �.cm MEASURE TOO LOW 15.2 mS/cm MEASURE TOO HIGH 15.2 mS/cm POLARIZATION TOO HIGH

Page 62 ERROR MESSAGES DURING A CALIBRATION Note : Press ESC to leave the menu and calibrate again. � The electronic zero shift is superior to the limit programmed. Calibrate again. � The slope shift is superior to the limit programmed. Limits : 50...150 % � The temperature drift is superior to the limit programmed. Limits : � 20 °C OFFSET OUT OF LIMITS SLOPE : 162 % SLOPE OUT OF LIMITS �T : -30.0°C �T OUT OF LIMITS COND. CALIB. COND. CALIB. TEMP. CALIB.

Page A1 Appendix A : Default values CALIBRATION COND. CALIB. TYPE : Electr. RES. : 1000 � TEMP. CALIB. TYPE : Process PARAMETERS DATE : 01/01/01 SLOPE : 100.0% �T : 0.0°C PROGRAMMING MEASURE PROBE TYPE : 2 elect. K : 001.00 FREQ. : Auto TEMP. COMP. MEASURE : No TEMP. : 025.0°C TREF. : 025.0°C COMP. : Coef. COEF. : 2.0 % ALARMS ALARMS S1 AFFECT. : S LIMIT : 10.0 mS DIR. : Down DELAY : 000 s HYST. : 00% RELAY : NO ALARMS S2 AFFECT. : S LIMIT : 10.0 mS DIR. : Down DELAY : 000 s HYST. : 00% RELAY : NO ALARMS S3 AFFECT. : S LIMIT : 10.0 mS DIR. : Down DELAY : 000 s HYST. : 00% RELAY : NO ALARMS S4 AFFECT. : S LIMIT : 10.0 mS DIR. : Down DELAY : 000 s HYST. : 00% RELAY : NO mA OUTPUTS OUTPUT 1 AFFECT. : S TYPE : 4-20 MODE : Lin LOWER : 1.0 �S UPPER : 10.0 �S OUTPUT 2 AFFECT. : °C TYPE : 4-20 LOWER : 0 °C UPPER : 100 °C

Page A2 SPECIAL PROG. MAINTENANCE MODE : Last TIMER MODE : Last CALIBRATION MODE : Last SYST. ALARM MODE : Last RS485 No : 1 BAUD : 19200 PARITY : No STOP BIT : 1 SWAP WORD : No SERVICE AVERAGE AVERAGE : 1 DISPLAY DISPLAY UNIT : S/cm TEMP. : °C LANGUAGE : GB CODE CODE CALIB. : 0000 PROG. : 0000 SERVICE : 0000

Page B1 Appendix B : Spare parts list No other spare parts except those below in the table should be replaced in the instrument. Part number Description 09125=A=1001 9125 equipped CPU board 09125=A=1500 9125 complete conductivity module 09125=A=2000 9125 power supply (standard version) 09125=A=2020 9125 power supply (low voltage version) 09125=A=4000 Relay board (option) 09125=A=1101 RS485 board (option) 09125=A=2485 RS485 kit (JBUS/MODBUS manual +board) 09125=C=3000 Mounted transmitter housing 425=110=221 Cable gland PG11 425=135=222 Cable gland PG13,5 351=007=001 Strap FLEXPAC 7 PTS 621=091=025 French instruction manual 621=191=025 English instruction manual 621=291=025 German instruction manual 621=491=025 Italian instruction manual 621=591=025 Spanish instruction manual 621=891=025 Dutch instruction manual 621=991=000 JBUS/MODBUS communication manual

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