USF Wallace & Tiernan DEPOLOX 4 Manual Download Page 70

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20.3

CHLORINE RESIDUAL AMPLIFIER

Measuring range:

0 ... 500 ppb / 0 .... 1.0 / 0 ... 2.0
0 ... 5.0 / 0 ... 9,99 mg/l

Current inputs:

- 5 ... 200 µA

Current output:

0 ... 20 / 4 ... 20 / 0 ... 10 / 0 ... 5 mA
volt-free (500 V to earth)

Load voltage 10 V

Accuracy 0.2 % referred to full scale value

Temperature drift 0.1 % / 10°C

Ambient temperature:

0 ... 50°C

Temperature compensation:

optional with PT100 sensor (0 ... 50°C)

Relay outputs:

2 changeover contacts 250V/1A,
volt-free limit contacts
2 relay outputs 250V/1A for electric positioner
or metering pump activation

Power consumption:

max. 10 VA

Power supply:

230V ± 15 % / 115V ± 15 %
50/60Hz

Dimensions:

width:

15 TE (76 mm)

height:

3 TE (129 mm)

depth:

160 mm

Weight:

775 g

Summary of Contents for DEPOLOX 4

Page 1: ...CESSOR BASED ANALYSING AND CONTROL SYSTEM FOR CHLORINE pH AND REDOX IN POTABLE WATER AND SWIMMING POOLS Wallace Tiernan GmbH D 89305 Günzburg Telefon 08221 904 0 Telefax 08221 904 203 e mail wtger chemfeed org www wallace tiernan de ...

Page 2: ...ead and understood prior to installation operation or maintenance Our guarantee is conditional upon the equipment being treated in accordance with this instruction To avoid errors please refer to the order number when corresponding with us Not parts may be disassembled during the guarantee time without our permission At significant disturbances we recommend to call for our trained service personne...

Page 3: ...ee Defects caused by normal wear faulty operation negligence or unsuitable process materials are excluded from our guarantee Also excluded are defects caused by unauthorised modifications or repairs performed by the buyer or a third party The guarantee period will not be extended or renewed after a modification of the equipment or the replacement of parts Defects not caused by our fault for instan...

Page 4: ...4 5 2 Depolox 4 analyzer pressure type max 1 5 bar 15 5 3 Amplifier for chlorine measuring cell DEPOLOX 4 15 16 6 CALIBRATION OF THE DEPOLOX 4 AMPLIFIER 17 6 1 Calibration of range 17 6 2 Calibration of bias voltage 17 6 3 Zero calibration 18 6 4 Zero calibration with chlorine free water 18 6 5 Zero calibration in case of a combination of 18 chlorine and ozone 6 6 Measured value calibration 19 6 7...

Page 5: ...nit plug in amplifiers 31 and COM interface card 11 2 Electrical installation 32 11 3 Front panel 33 11 4 Keypad 34 11 5 Parameter and function menus set up and 34 changing of settings 11 6 Basic amplifier setup 35 12 CHLORINE MEASURING AMPLIFIER 36 12 1 Paramter menus standard Cl2 amplifier 36 37 12 2 Function menus Cl2 amplifier 38 12 3 Paramter set up during initial operation 38 12 3 1 Control ...

Page 6: ...ump controller pulse duration controller 54 16 3 Solenoid pump controller pulse frequency controller 55 56 16 4 Controller with continuous output 57 16 5 Control parameters and their influence on the control loop 58 61 17 ADAPTATION OF THE CHLORINE AMPLIFIER 62 17 1 Use of the adaptation 62 17 2 Preconditions for the adaptation 63 17 3 Adaptation menus 63 17 4 Sequence of the adaptation 64 17 5 En...

Page 7: ...of material BZ 1167 E Sample water arrangement incorporating sample water pump with bill of material BZ 1184 Housing complete U 93 743 with bill of material 30 E 7585 sheet 1 sheet 7 Typical wiring diagrams for Cl2 module 30 E 7578 sheet 1 Wiring diagram amplifier for panel mounting 30 E 7578 sheet 2 Connection COM card U 95 590 Wall housing with bill of material U 95 649 Panel mounting housing wi...

Page 8: ...lorination filter 2 DISINFECTANTS IN WATER LIMIT VALUES 2 1 CHLORINE Cl2 According to current German regulations potable water must not contain more than 0 3mg l of effective chlorine This amount may be increased temporarily up to 0 6mg l if required for sufficient disinfection A further requirement is that potable water and water used by the food processing industry disinfected with chlorine shal...

Page 9: ...e measuring system 8 The flow regulator 9 is factory adjusted and maintains a constant sample water flow through the measuring cell If the measuring cell is of the pressureless type the sample water flows via the drain line 6 into the drain funnel 5 For additional measurement of pH and Redox the appropriate electrodes can be plugged into the body of the measuring cell With these electrodes use is ...

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Page 11: ...ntains an adjustable constant potential Upot between working and reference electrodes by means of potentiostatic closed loop control About 33 l hr of the water to be analysed flows past this system of electrodes The current generated in the measuring cell is directly proportional to the concentration of the oxidising agent in the sample water This current is then passed to the microprocessor based...

Page 12: ...rtant to consider both the chlorine contact time and mixing with the treated water POTABLE WATER Adequate mixing of chlorine and water will be achieved if the distance between the point of application and the sample water take off point is at least 10 times preferably even 20 times or more the diameter of the water line e g if the diameter of the water line is DN 300 the minimum distance will be 3...

Page 13: ...acent to any mains supply cable 4 2 SAMPLE WATER TAKE OFF IMPORTANT Use a PVC hose internal diameter 6 x 3 or a 6 mm PVC pipe for the sample water line and locate the unit to minimize sample line length CAUTION Copper pipes must not be used for the sample water line Locate the sample water take off to ensure optimum mixing of disinfectant and water a continuous sample water flow without air bubble...

Page 14: ...1 3 Pull electrode assembly down and out of cell block 4 Remove felt ring transport protection of membrane 5 Exchange plug against separately supplied plug fitted with membrane for venting of the electrolyte reservoir 6 Replace electrode assembly into cell block NOTE Keying pin fig 2D item 58 must snap into position 7 Allow sample to flow by opening linlet valve 8 Fill a half capful of grit U 95 6...

Page 15: ...alce cover and tighten by nut 5 3 AMPLIFIER FOR CHLORINE MEASURING CELL DEPOLOX 4 After completion of the field the following initial startup procedure has to be followed 1 Insert the amplifier module into the basic unit until it is firmly seated and tighten fixing screws 2 As soon as power is on an automatic test of the amplifier is made which is signalled by the flashing of all display segments ...

Page 16: ... LO Alarm set 0 00 mg l P Limit time delay Tv min 0 0 min P Hysteresis 0 03 mg l P HI LO Alarm set switched off P mA output signal 0 20 mA P Selection cell DEPOLOX 4 P Bias volts 250 mV P Operation chlorination P A detailed description of the amplifier functions is contained in the chapter Amplifier page 34 item 11 5 16 ...

Page 17: ... hours 6 1 CALIBRATION OF RANGE The factory calibration of the measuring range is 0 to 1 00 mg l of free chlorine Al ternative ranges 500 ppb 1 0 2 0 5 0 or 99 9 mg l can be programmed prior to zero calibration and DPD calibration 1 Press the MANUAL AUTOMATIC key of the amplifier menu display then press key F repeatedly until RGE for range is displayed 2 Press direction keys to select the range an...

Page 18: ...RATION WITH CHLORINE FREE WATER If chlorine free water is available it may be used for zero calibration In some cases e g in waterworks chlorine free water for zero calibration may also be obtained by turning off the chlorinator 6 5 ZERO CALIBRATION IN CASE OF A COMBINATION OF CHLORINE AND OZONE If a combination of these two methods of treatment is used the sample water for checking and calibratin...

Page 19: ... F menu and return to manual operation mode by pressing MANUAL AUTOMATIC key Press this key again to switch to automatic operation of the amplifier The controller outputs optional are now activated 6 7 CHEMICAL ANALYSING METHODS The chemical determination of chlorine residual or other oxidising agents may be performed conveniently by using either a colorimeter or a photometer Both instruments furn...

Page 20: ... 6 months for normal applications every 12 months 7 3 CHANGE OF GRIT As the grains of grit U 95 653 used for continuous electrode cleaning wear down after a while the grit has to be replaced every 2 months Proceed as follows 1 Activate manual operation mode 2 Close shut off valve page 10 fig 1 item 20 to shut off sample water flow 3 Open drain valve page 10 fig 1 item 7 and BZ 1141 E fig 3 item 19...

Page 21: ...er to drawing F 90 604 for correct matching of measuring cables and electrodes 7 6 CHEMICAL AND MECHANICAL CLEANING If there is a build up of deposits in the flow through assembly BZ 1150 2 5 E item 41 or on PVC parts they may be removed by cleaning with dilute hydrochloric acid concentration approx 10 U 94 726 CAUTION Do not clean the working electrode and the counter electrode chemically The two...

Page 22: ...current Insufficient measuring cell current Measured electrode current menu item µA electrode current in chlorine free water must be below 5 µA otherwise verify bias voltage 250 mV chapter 6 2 The current potential between chlorine free and chlorinated water with 1 0 mg l of chlorine must be at least 4 µA contaminated electrodes or the presence of chlorisocyanurates in the water might be the cause...

Page 23: ...urn is plugged into the measuring cell cover This impedance transformer is used to convert the very high ohmic signal of the pH probe appr 1000MOhm into a low ohmic signal so that problems caused by dirt moisture or electric fields around live wires can be avoided to a large extent By virtue of the incorporated lithium battery the impedance transformer does not have to be connected to an external ...

Page 24: ... be entered 6 Press key F until Cal pH7 for calibration with buffer solution pH is displayed 7 Remove pH probe from Depolox 4 cell immerse it in pH 7 buffer solution and agitate gently 8 As soon as the digital display has stabilized press key E to enter calibration value pH 7 display 7 00 pH 9 Press key F until Cal pH is displayed For slope calibration use either the pH 4 65 buffer solution recomm...

Page 25: ...ghly with water To remove calceous deposits from the glass diaphragm and the membrane submerge the probe in hydrochloric acid of 10 strength Rinse thoroughly with distilled water Probe ageing is frequently the cause of a sluggish pH value indication or a declining slope pH probes have a service life of 1 to 3 years provided that they are serviced regularly 9 4 pH MEASUREMENT USING THE PHENOL RED M...

Page 26: ... solution pH 7 00 supplied in a 250 ml glass bottle order no EXA 100 277 standard buffer solution pH 4 65 supplied in a 250 ml glass bottle order no EXB 100 277 squeeze bottle made of polyethylene filled with 500 ml of distilled water order no U 93 426 filter paper order no U 93 429 100 ml of hydrochloric acid strength 10 supplied in a PE bottle order no U 93 427 100 ml of denaturated alcohol supp...

Page 27: ... a low ohmic signal The supplied screened coaxial cable of 1 5 m length is equipped with a special plug on one end Fasten this plug to the impedance transformer connector unit The other end of the screened cable has to be connected directly to the corresponding terminal in the basic unit The max distance is 50 m 10 2 START UP The start up procedure for the Redox analyser is the same as that for th...

Page 28: ...y the surface of the platinum electrode is gradually covered up by a layer of contaminants which may not be visible The ceramic membrane may also be contaminated or scaled by calceous deposits Remove the Redox probe from the flow through assembly and clean the platin um electrode with water and some fine abrasive household cleaning powder Take a bit of cleaning powder and rub the platinum electrod...

Page 29: ...g AgCl 3 mol KCL supplied in a 250 ml glass bottle order no E 100 278 calibration beaker made of polypropylene 100 ml graduated order no P 93 780 squeeze bottle made of polyethylene filled with 500 ml of distilled water order no U 93 426 100 ml of hydrochloric acid strength 10 supplied in a PE bottle order no U 93 427 100 ml of denaturated alcohol supplied in a PE bottle order no U 93 428 29 ...

Page 30: ...l with keypad and 2 printed circuit boards standard European dimensions 100 x 160 mm As a result of the modular design each amplifier has a separate power supply and a separate microprocessor In the event of a failure of one measuring system the function of the remaining amplifiers is not impaired In this case the unit can be repaired in a quick and inexpensive way by the customer himself as he on...

Page 31: ... OF BASIC UNIT PLUG IN AMPLIFIERS AND COM INTERFACE CARD B 74 PCX edition 01 1993 Basic unit for wall mounting Plug in amplifier COM Interface card B 75 PCX edition 01 1993 Order No for amplifiers refer to table BZ 1245 E ...

Page 32: ...ug type terminals in the basic unit may be removed temporarily for easier connection On the power supply PCB a fuse 230V 0 125 A or 115 V 0 25 A is provided for each plug in amplifier Terminals 9 10 11 and 12 for the connection of dosing pumps or an electric positioner can only be used if option controller has been selected and are protected by a fuse on the basic unit PCB F1 F2 F3 Careful wiring ...

Page 33: ... 3 digit 7 segment LED measured value display a text display 5 x 7 dot matrix and a keypad with 6 keys If the options controller and temperature have been selected additional LED s show the direction of rotation of the controller output increasing and decreasing feed rate of electric positioner and the temperature of the sample water in C Texts can be displayed in 4 languages German English French...

Page 34: ...he P or F menus key E If settings in the P or F menus are changed e g limit value increased from 0 30 to 0 35 mg l the B 18 PCX edition 01 1993 selected value has to be entered by pressing key E 11 5 PARAMETER AND FUNCTION MENUS SET UP AND CHANGING OF SETTINGS 1 Press key Hd is displayed in the text display MANUAL AUTOMATIC manual operation mode of ampflifier is activated 2 Press keys P or F The r...

Page 35: ...in the matrix text display For changing this configuration switch S1 on processor PCB the amplifier has to be removed from the basic unit Use switches 1 and 2 to select the language and switch 3 to activate option temperature temperature measurement with Pt 100 Together with the COM interface card switch 4 is used to set date and time Switches 5 and 6 serve internal servicing purposes Switch no 5 ...

Page 36: ...limit value max Ald min Limit time delay 0 60 min Alh min Limit hysteresis Settings between 1 50 digits of display Al N O Alarm relay condition N O normally open N C normally closed switched off 0 20 mA Selection of mA output 0 20 4 20 0 5 0 10 mA switched off DEPOLOX 4 Selection cell Depolox 3 Depolox 4 Upot Bias voltage 50 mV 999 mV CHLOR Direction of contact Chlorination Dechlorination EL POS C...

Page 37: ...element metering pump pulse duration control Xp Controller parameter Prop band 1 199 Tp s Controller parameter Controller on time off time cycle 10 120 sec Ymin Controller parameter 0 30 basic load Ymax Controller parameter Controller output limit Ymin 100 Tn min Controller parameter Integral action time 1 9 99 min Selected control element solenoid pump or continuous controller output pulse freque...

Page 38: ...following settings are reference values for the initial operation of a Cl2 residual control system The quality of regulation may be optimized by the user himself with the help of a recorder It is essential to change only one controller parameter at a time and to check the result after 2 to 3 days on the recorder tape It is recommended to change the prop band Xp first and then the D factor It is ad...

Page 39: ...lume 90 m3 Volume 900 m3 Volume 175 m3 Dead time 10 min Dead time 12 min Dead time 3 min vertical through flow Raise time Raise time Raise time 40 min 280 min 40 min Cl2 feed rate Cl2 feed rate Cl2 feed rate max 100 g h max 450 g h max 900 g h SP 0 50 mg l 0 45 mg l 0 40 mg l Xp 75 12 22 Tn 64 min 52 min 14 min Controller Potable water parameter SP 0 2 mg l Xp 100 Tn 2 min Ty 180 sec 39 ...

Page 40: ... m3 parameter Cl2 feed rate D10 10 l h SP 0 50 mg l Xp 10 Tp 60 sec Ymin 0 Ymax 100 Tn 20 min Recommended Tp time for metering pumps Metering pump storkes min Tp s NOTE Tp menu is not available when solenoid pump or continuous output are used as control element 40 120 100 60 30 15 20 20 40 40 80 80 125 125 200 ...

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Page 42: ...omatic adjustment of the feedback display is made This can be seen on the status display 1 till 6 Ym 1 activation Ym 2 0 approach Ym 3 0 tuning Ym 4 100 approach Ym 5 100 tuning Ym 6 calculation of positioner running time Ty The tuning process is finished when the status display Ym extinguishes Tuning tolerances The feedback signal is adjustable by max 30 at the zero Y 0 and range Y 100 values Exa...

Page 43: ... LO alarm Settings from bottom value of measuring range to limit value max Ald pH Limit time delay 0 60 min Alh pH Limit hysteresis 1 50 digit of display Al N O Alarm relay N O normally open N C normally closed switched off 0 20 mA Selection of mA output 0 20 4 20 0 5 0 10 mA switched off ACID Direction of control Acid alkaline M Pump Control element selection menu Solenoid pump continuous output ...

Page 44: ...trol Xp Control parameter Prop band 1 999 Tp s Control parameter Controller on time off time cycle 10 120 sec Ymin Control parameter 0 30 basic load Ymax Control parameter Controller output limit Ymin 100 Tn min Control parameter Integral action time 1 99 9 min Control element Solenoid pump or continuous controller otuput pulse frequency controller Xp Control parameter Prop band 1 999 Ymin Control...

Page 45: ...pH pH calibration slope Any buffer solution e g pH 4 65 or 9 can be used ZRO pH Bottom value of pH 0 5 measuring range RGE pH Top value of measuring pH 9 14 range mV Display of probe voltage 500 mV DAY Parameters for COM 01 31 MONTH interface realtime clock 01 12 YEAR switch S1 4 chapter 11 6 00 99 HOUR 00 23 MINUTE 00 59 COMP C is not displayed if the pH measurement amplifier is equipped with opt...

Page 46: ...PULSE FREQUENCY CONTROLLER SP pH 7 20 Setpoint Xp 10 Control amplification factor 10 Ymin 0 No basic load Ymax 100 No max feedrate limit Tn 20 min Integral action time 13 3 3 FOR ELECTRIC POSITIONERS AND REGULATION VALUES STEP RATE CONTROLLER W pH 7 20 Setpoint Xp 10 Control amplification factor 10 Ymax 100 No reduction of the positioning speed Tn 20 min Integral action time For all types of contr...

Page 47: ...f measuring range to limit value max Ald min Limit time delay 0 60 min Alh mV Limit hysteresis for metering 1 50 digits of display and alarm contact Al N O Alarm relay N O normally open N C normally closed switched off 0 20 mA Selection of mA output 0 20 4 20 0 5 0 10 mA switched off INCREASE Direction of control Control upwards or DECREASE downwards M PUMP Control element selection menu Solenoid ...

Page 48: ...on control Xp Control parameter Prop band 1 999 Tp s Control parameter Controller on time off time cycle 10 120 sec Ymin Control parameter 0 30 basic load Ymax Control parameter Controller output limit Ymin 100 Tn min Control parameter Integral action time 1 99 9 min Control element Solenoid pump or continuous controller otuput pulse frequency controller Xp Control parameter Prop band 1 999 Ymin C...

Page 49: ...ion Use Redox buffer solution 468 mV ZRO mV Bottom value of measuring 0 700 mV range RGE mV Top value of measuring 300 999 mV range mV Display of probe voltage 500 mV DAY Parameters for COM interface 01 31 MONTH realtime clock switch S1 4 01 12 YEAR refer to chapter 11 6 00 99 HOUR 00 23 MINUTE 00 59 49 ...

Page 50: ...for Depolox 3 systems DPD Slope error in chlorine Check measuring cell measurement amplifier clean electrodes The difference between zero replace electrolyte current and measured value check pH value of sample is below 4 µA min value water pH 8 required for slope calibration check presence of of full range chlorisocyanurates Cl2 The max current of 100 µA stabilizer in sample water for Depolox 3 an...

Page 51: ...r recorder the impressed mA output If not inactivate output current through the signal by selecting connected current loop in the P menu parameter 500 Ohm at 20 mA selection mA Admissible ohmic resistance 4 20 mA 500 Ohm Check mA signal cable for 0 10 mA 1000 Ohm discontinuities 0 5 mA 2000 Ohm CSP Set point error Readjust controller set point After a change in the measuring range the controller s...

Page 52: ... error remains after the system has been reset as follows 1 Pull amplifier out of basic unit 2 Set swichtes M1 6 page 35 to position ON 3 Insert amplifier into basic unit RAM is displayed 4 Press key E 5 Set swichtes S1 6 back to position OFF 6 Customer specific settings e g alarm contacts must be restored afresh in the P and F menus as above proudure reverts the amplifier to its basis B 24 PCX ed...

Page 53: ...sitioning element The servomotor determines the chlorine dosage quantity as a function of control deviation as is possible for instance with chlorine gas systems V 761 GST and V 741 GST The activation of servomotors for control valves or for the stroke adjustments of dosing pumps is also possible The control direction is indicated by the two arrow LED s in the display field relay activation The fo...

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Page 57: ...hyristor control units with DC pumps or analog control valves The following parameters can be set with the continuous output controller Xp proportional factor 1 999 Ymin basic load 0 30 Ymax feedrate limit 2 100 Tn min integral action time 1 99 9 The dynamic response of the controller is adjustable via parameters Xp and Tn NOTE Since each measuring amplifier has only one electrically isolated curr...

Page 58: ...l factor Xp as a the greater will be the amplification of the deviation from the setpoint and the faster the attempt by the controller to correct the control deviation The gain can be changed within limits Xp 1 factor 100 to Xp 999 factor 0 1 Tp operating cycle only valid for metering pumps The operating cycle Tp defines a period in seconds which is to be adjusted to the type of pump in question s...

Page 59: ...espond to an electronics dosing limit of the positioning element Ymax can be set from 2 to 100 Continuous output controllers If Ymax is set to 50 then the max control signal e g 20 mA is limited to half 10 mA Ymin feedrate basic load only applicable for metering pumps solenoid pumps or continuous positioners By means of this control parameter the following control elements metering pump solenoid p...

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Page 61: ... measured value is smaller than the setpoint Alkaline Control factor increases when the measured value is smaller than the setpoint Acid Control factor decrease when the measured value is smaller than the setpoint Open Control factor increases when the measured value is smaller than the setpoint Close Control factor decreases when the measured value is smaller than the setpoint Control deviation T...

Page 62: ...dead time Tu and raise time Ts respectively of the resulting controller parameters Xp and Tn The adaptation menu is accessible by code number 900 IMPORTANT NOTE The controller parameters determined by the adaptation must be considered as recommended values for the initial start up In order to obtain the best control quality the controller parameters Xp and Tn may be optimized manually 62 ...

Page 63: ...lowing operating conditions when high doses of fresh water have been added when the measuring cell is not yet run in while the pool is cleaned while filters are back flushed 17 3 ADAPTATION MENUS TEXT DISPLAY DESCRIPTION POSSIBLE SETTINGS Code Access to adaptation Access code for adaptation is 900 menu Chlor Direction of control Chlorination or dechlorination El Pos Control element Electric positi...

Page 64: ...surement of dead time Tu Adapt 07 Plausibility interrogation of the dead time Adapt 08 Activation of the raise period measurement Adapt 09 Measurement of the raise period Ts Adapt 10 Calculation of control parameters Adapt 11 Chlorine feedrate 0 or metering pump OFF Adapt 12 Waiting period until chlorinator 0 Adapt 13 Switching over to mode AUTOMATIC Depending on the type of positioner some of the...

Page 65: ... periods are entered into the menus Tu min and Ts min for control If a disturbance of the control loop takes place during the adaptation period wrong loop takes place during the adaptation period wrong loop periods and consequently wrong controller parameters may be determined NOTE Carrying out the adaptation does not influence the other control parameters Ymin Ymax and Tp The parameters Xp and Tn...

Page 66: ... the chlorinator respectively starting of the dosing pump and the rise of the measured value must not exceed one hour This time measurement is displayed as Adapt 06 Raise time too big The period of time required for increasing the measured value to 50 of the range while the chlorinator or dosing pump are operating at 100 capacity must not exceed 4 hours This time measurement is displayed as Adapt ...

Page 67: ...mode NOTE By storing Tu and Ts respectively the calculated values Xp and Tn the remaining parameters Ymin Ymax and Tp are not influenced The parameters Xp and Tn are fixed for Ymin 0 no basic load of the dosing pump and Ymax no feedrate limitation If the plan should require a basic load Ymin or a feedrate limitation Ymax it must be noted that this will limit the control range This involves the ris...

Page 68: ...actual feed back value measuring range unit of the measured value parameters of the set points value hysteresis and deceleration set point measured value of the option i e temparature or reply of the regulator operation state of the amplifier error message and alarm message may be printed or further operated with CMS Set point and parameters of the limit may be changed centrally with the CMS Detai...

Page 69: ...s Response time 90 of the change of the Cl2 residual within 60 sec of the entry of the sample water into the measuring cell Output signal µA current Dimensions 260 W x 350 H x 160 D mm Weight 3 8 kg Material ABS PVC Plexiglass Temperature range 0 50 C for the sample water 20 2 BASIC UNIT FOR WALL MOUNTING Dimensions 337 W x 223 H x 228 D mm Weight 2 8 kg Type of protection IP 65 Terminal compartme...

Page 70: ...o full scale value Temperature drift 0 1 10 C Ambient temperature 0 50 C Temperature compensation optional with PT100 sensor 0 50 C Relay outputs 2 changeover contacts 250V 1A volt free limit contacts 2 relay outputs 250V 1A for electric positioner or metering pump activation Power consumption max 10 VA Power supply 230V 15 115V 15 50 60Hz Dimensions width 15 TE 76 mm height 3 TE 129 mm depth 160 ...

Page 71: ...ull scale value Temperature drift 0 1 10 C Ambient temperature 0 50 C Temperature compensation optional internal 0 99 C or external compensation using Pt 100 sensor 0 50 C Relay outputs 2 changeover contacts 250V 1A volt free limit contacts 2 relay outputs 250V 1A for servomotor or metering pump activation Power consumption max 10 VA Power supply 230V 15 115V 15 50 60Hz Dimensions width 15 TE 76 m...

Page 72: ...ad voltage 10 V Prescision 0 2 referred to full scale value Temperature drift 0 1 10 C Ambient temperature 0 50 C Relay outputs 2 changeover contacts 250V 1A volt free limit contacts 2 relay outputs 250V 1A for servomotor or dosing pump activation Power consumption max 10 VA Power supply 230V 15 115V 15 50 60Hz Dimensions width 15 TE 76 mm height 3 TE 129 mm depth 160 mm Weight 775 g 72 ...

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