EUTECH INSTRUMENTS alpha pH 200, Instruction Manual

Page 1: ...Technology Made Easy Instruction Manual αlpha pH 200 1 8 DIN pH ORP Controller with Temperature display and Transmitter 68X276101 Rev 3 1 2004 ...

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Page 3: ...smitter do not hesitate to contact the nearest Eutech Instruments Authorized Distributor Eutech Instruments cannot accept any responsibility for damage or malfunction to the controller transmitter caused by improper use of the instrument Remember to fill in the guarantee card and mail it mail to your Authorized Distributor or Eutech Instruments Pte Ltd The information presented in this manual is s...

Page 4: ...TURE CALIBRATION 14 9 SETUP MODE 15 9 1 GENERAL INFORMATION 15 9 2 SETUP MODE OVERVIEW 16 9 3 SET POINT 1 P1 0 17 9 4 SET POINT 2 P2 0 19 9 5 CONFIGURATION P3 0 21 9 6 VIEWING CALIBRATION POINTS PH OR ORP P4 0 23 9 7 VIEWING PH ELECTRODE DATA P5 0 24 9 8 VIEWING ORP ELECTRODE DATA P5 0 25 9 9 CONTROLLER RESET P6 0 26 10 RELAYS 27 11 TRANSMITTER FUNCTION 27 12 ERROR MESSAGES 27 13 SPECIFICATIONS 28...

Page 5: ... Some features of this controller are Two set point two SPDT relay operation Scrolling 14 segment LED guides user easily through setup functions Reliable power supply from 85 to 260 V AC 50 60 Hz or DC withstands voltage fluctuations Push button operation from the front panel Two point pH calibration offset temperature and ORP calibration Adjustable hysteresis band prevents rapid contact switching...

Page 6: ... that power source it is connected to is as specified in the top label Failure to do so may result in a permanent damage to the unit The unit has live and exposed parts inside If it has to be opened make sure that the power to the unit is off and disconnected The unit is Fuse protected In the event the fuse has to be replaced use only those as specified in the manual The degree of protection again...

Page 7: ...in setup mode 6 pH Unit of the displayed parameter pH 7 oC Unit of the displayed parameter temperature 8 mV Unit of the displayed parameter ORP Keys 9 MODE Use to toggle between measurement modes pH ORP and temperature 10 ENTER Press to confirm changes or to enter into further levels of the lower menu 11 increment decrement Use during calibration and setup modes to increment or decrement Press bot...

Page 8: ... POLE Pt 100 SENSE GROUND RELAY 2 NC N LIQUID GND L J2 J1 J3 pH ORP WARNING D B C A A 3 pin connector for power supply B 9 pin connector for relays C 7 pin connector for temperature sensor D BNC connector for pH or ORP electrode A 1 L Live 2 N Neutral 3 E Earth Ground C 13 Pt 100 SENSE 14 Pt 100 IN 15 Pt 100 GND 16 NC 17 NC 18 NC 19 NC B 4 Liquid GND 5 RELAY 2 NC 6 RELAY 2 POLE 7 RELAY 2 NO 8 RELA...

Page 9: ...ted to either terminal Terminals 13 and 14 must be shunted unless using a 3 wire RTD NOTE pH 200 is factory set for manual temperature compensation ATC can be selected in Program P3 3 3 Slide the BNC connector of the pH ORP probe to the BNC connector on the back of the controller Turn the notches of the connector until they lock into place 4 Power on the controller The display automatically shows ...

Page 10: ...the controller 1 Align the catch to the side of the controller and insert threaded rods through catch BACK VIEW 2 Screw the threaded rod through the catch in a clock wise direction Tighten until the catch holds the controller firmly against the back of the panel or protective housing Repeat on the other side SIDE VIEW TOP VIEW approx 154 20 approx 100 Wall pa Catch Threaded Catch Threaded rod ...

Page 11: ...ate annunciator lights up NOTE Select pH or ORP measurement mode in Setup program P3 1 Temperature Measurement mode Press MODE key once to view the temperature measurement The display shows ATC Automatic Temperature Compensation or MTC Manual Temperature Compensation then the current measured temperature The oC annunciator lights when you are measuring temperature See Setup program P3 3 for furthe...

Page 12: ...ce The display reads P 000 The first 0 flashes 2 Press ENTER again to leave the first digit 0 and to scroll to the next number 3 Press the and keys to change the second digit to the correct number 1 or 2 Press ENTER 4 Press the and keys to change the third digit to the correct number 1 or 2 Press ENTER The whole display will now flash to prompt for its confirmation If you enter an incorrect digit ...

Page 13: ... 9 P P 000 P 000 P 0 10 P 020 P 0 11 P 022 P 011 P 022 ...

Page 14: ...de is in the buffer solution In ATC mode you must also immerse the temperature sensor in the buffer solution In the symmetrically high resistance measurement mode you must also immerse the solution ground potential equalization pin in the buffer 4 Allow the electrode time to stabilize 5 Press ENTER The instrument will blink with the uncalibrated pH value corresponding to the mV output of your pH p...

Page 15: ... 11 7 0 0 7 0 0 10 0 1 10 0 1 10 0 3 6 9 7 bU f f bU f f d o n e ENTER ENTER ENTER ENTER ENTER ENTER d o n e ...

Page 16: ...of your pH probe 10 Press ENTER to confirm the buffer value The display blinks the calibrated value twice and flashes DONE Press the ENTER again to return to measurement mode NOTE Buffer must be within 1 0 pH of the value you are calibrating to or Err1 will display To clear the Err1 display and return to calibration mode press keys together Notes You can view the pH calibration points in the Setup...

Page 17: ...blink with uncalibrated mV output of your electrode 3 Determine the mV value of your solution with an accurate meter such as the pH 6 4 Press the or keys to offset the mV value on the controller display to match the value of the solution you are measuring 5 Press ENTER The display flashes DONE Press ENTER again to return to measurement mode NOTE You can view the mV offset in the Setup program P5 0...

Page 18: ...u can select a manual temperature value from 10 to 110oC Factory default is 25 0oC See Setup program P3 3 for instructions on ATC or MTC selection To offset temperature 1 Press MODE to select oC mode The display shows MTC or ATC then the temperature 2 Key in the password 011 as per procedure in Section 5 3 The screen will flash the current oC reading 4 For ATC Determine the temperature of your sol...

Page 19: ...e measurement mode both the 4 20mA output and relay activities resume depending on the settings To enter setup mode 1 Key in the password 022 using the method described in section 5 2 Press the or keys to display the various sub menus shown here 3 When a sub menu item is displayed press the ENTER key to enter that sub menu 4 Press and keys together ESCAPE to leave the Setup mode and return to Meas...

Page 20: ...sis value P3 0 Configuration P3 1 select pH or ORP units P3 2 select symmetrical or asymmetrical input mode P3 3 select temperature compensation MTC or ATC P4 0 Calibration data P4 1 view first calibration point P4 2 view second calibration point pH mode only P5 0 Electrode data P5 1 view electrode offset P5 2 view electrode slope pH mode only P5 3 view temperature probe offset ATC mode only P6 0 ...

Page 21: ...ll P1 0 and SP1 Press ENTER 3 The screen will scroll P1 1 SP1 then the current set point value 4 Press or keys and adjust first relay set point You can adjust it in 0 01 increments from 0 00 to 14 00 pH 999 to 1000 mV 5 Press ENTER to confirm and continue to step three of P1 2 P1 2 Set relay as high or low set point Select a low set point to activate controller when your value undershoots the set ...

Page 22: ...values below 4 00 but will not de activate till the measured pH value rises above pH 4 50 The hysteresis window can be set to any value within the range shown below pH mode 0 00 to 2 00 pH ORP mode 0 to 300 mV 1 Key in the password 022 as per procedure in Section 5 2 The screen will scroll P1 0 and SP1 Press ENTER three times 3 The screen will scroll P1 3 HYS1 and current hysteresis value 4 Press ...

Page 23: ... P2 0 and SP2 Press ENTER 3 The screen will scroll P2 1 SP2 then the current set point value 4 Press or keys and adjust second relay set point You can adjust it in 0 01 increments from 0 00 to 14 00 pH 999 to 1000 mV 5 Press ENTER to confirm and continue to step three of P2 2 P2 2 Set relay as high or low set point Select a low set point to activate controller when your value undershoots the set p...

Page 24: ...ove 10 00 but will not de activate till the measured pH value decreases below pH 9 50 The hysteresis window can be set to any value within the range shown below pH mode 0 00 to 2 00 pH ORP mode 0 to 300 mV 1 Key in the password 022 as per procedure in Section 5 2 Press key once The screen will scroll P2 0 and SP2 Press ENTER three times 3 The screen will scroll P2 3 HYS2 and current hysteresis val...

Page 25: ...toggle between pH and ORP 5 Press ENTER to confirm and continue to step three of P3 2 P3 2 Select symmetrical or asymmetrical input mode Use asymmetrical mode under normal operating conditions Use symmetrical mode when the measuring environment is electrically noisy i e in electroplating environments Default is asymmetrical See Appendix 1 for more details on operation in symmetrical and asymmetric...

Page 26: ...re sensor 1 Key in the password 022 as per procedure in Section 5 2 Press key twice The screen will scroll P3 0 and CONF Press ENTER three times 3 The screen will scroll P3 3 and MTC or ATC 4 Press or keys to toggle between MTC and ATC 5 Press ENTER to confirm and return to general Setup mode Press and keys together ESCAPE to return to measurement mode NOTE ORP is not affected by temperature and s...

Page 27: ...APE at anytime to leave the Setup mode and return to Measurement mode P4 0 Viewing calibration points 1 Key in the password 022 as per procedure in Section 5 2 Press key three times The screen will scroll P4 0 and CAL Press ENTER 3 The screen will scroll P4 1 then CAL then the first calibration point 4 Press ENTER In pH mode The screen will display P4 2 then CAL then the second calibration point I...

Page 28: ... Setup mode and return to Measurement mode P5 0 Viewing pH electrode data 1 Key in the password 022 as per procedure in Section 5 2 Press key four times The screen will scroll P5 0 and ELEC Press ENTER 3 The screen will scroll P5 1 then P OFS then pH electrode offset in mV at the pH 6 86 7 00 calibration point 4 Press ENTER The screen will display P5 2 then SLPE then the electrode slope in mV 5 MT...

Page 29: ...at anytime to leave the Setup mode and return to Measurement mode P5 0 Viewing ORP electrode data 1 Key in the password 022 as per procedure in Section 5 2 Press key four times The screen will scroll P5 0 and ELEC Press ENTER 3 The screen will scroll P5 1 then m OFS then the ORP electrode offset at the point of calibration 4 MTC on press ENTER to return to general Setup mode ATC on go to next step...

Page 30: ...ESCAPE at anytime to leave the Setup mode and return to Measurement mode P6 0 Controller reset 1 Key in the password 022 as per procedure in Section 5 2 Press key five times The screen will scroll P6 0 and RST Press ENTER 3 The screen will scroll P6 1 then NO 4 Press or keys to toggle between YES and NO Pressing YES will clear all calibration data and setup parameters 5 Press ENTER to confirm sele...

Page 31: ... pH 20 mA ORP 999 mV 4 mA 1000 mV 20 mA The 4 20 mA current loop can drive a load resistance of no more than 200 Ω 12 ERROR MESSAGES The following table provides a guideline to enable diagnosis of possible problems indicated by the messages generated by the meter Error Message Indicates Possible Cause Corrective Action Err1 Calibration Error Incorrect buffer solution used or contamination of buffe...

Page 32: ...puts Controller 2 SPDT relays Switching Voltage Current Power Max 250 VAC Max 3A Max 600 VA Electrical Data And Connections Power Requirements 85 to 260 VAC 50 60 Hz or DC Signal Output Load 4 20 mA galvanically isolated 200 Ω pH ORP Input BNC 1012 Impedance Connection Terminals 3 Detachable connectors 3 pin 7 pin 9 pin terminal blocks Main Fuse 500 mA slow blow Environmental Conditions Ambient Te...

Page 33: ... PMP EC ARHTTSO 05B pH Combination Electrode w o ATC PMP EC ARTSO 05B ORP Gold Electrode with PMP but w o ATC EC HTAUTSO 05B ORP Platinum Electrode with PMP but w o ATC EC HTPTTSO 05B Note Above pH ORP electrodes withstand up to 6 bar pressure except EC ARHTTSO 05B up to 9 bar These electrodes have integral 5m measuring cable terminating with a BNC connector Please contact your authorised distribu...

Page 34: ...e is noise the noise acts as a common signal which is picked up by both the pH and the reference electrodes However since the reference electrode is grounded to the ground potential of the amplifier electrical noise will be present only on the pH electrode This noise is amplified along with the pH signal which causes fluctuations in the pH or ORP readings Electrical noise from a DC source as in an...

Page 35: ...potential matching pin such as the EC ARGTSO 05B or EC 100GTSO 05B If your electrode does not have a solution ground be sure to set the controller to Asymmetrical mode Symmetrical mode avoids grounding the reference electrode by reconfiguring the input to a floating differential mode The electrical noise appears equally on the pH and reference electrodes and is therefore rejected by the operationa...

Page 36: ...anged 1 Measurement mode pH or ORP 2 Temperature compensation mode ATC or MTC 3 Temperature offset calibration value if in ATC mode pH Defaults pH input Asymmetrical offset 0 0 mV slope 59 2 mV Set point 1 pH 4 00 LOW Hysteresis pH 1 00 Set point 2 pH 10 00 HIGH Hysteresis pH 1 00 mV Defaults mV input Asymmetrical offset 0 00 mV Set point 1 100 mV LOW Hysteresis 5 mV Set point 2 900 mV HIGH Hyster...

Page 37: ...troller or if higher power is needed it is recommended that you use the controller relay to drive an external relay Diagram below shows a typical installation Wiring should be changed appropriately if normally closed N C operation is desired 4 20 mA 12 19 3 11 18 2 10 17 1 9 16 8 15 7 14 6 13 5 4 NC NC NC NC 4 20 mA RELAY 1 NO RELAY 1 POLE RELAY 1 NC Pt 100 GND RELAY 2 NO Pt 100 IN RELAY 2 POLE Pt...

Page 38: ... Return of Goods Authorisation number before returning items for any reason When applying for authorisation please include data requiring the reason of return Items must be carefully packed to prevent damage in shipment and insured against possible damage or loss Eutech Instruments will not be responsible for any damage resulting from careless or insufficient packing Warning Shipping damage as a r...

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