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Summary of Contents for EUTECH INSTRUMENTS ALPHA PH 100 PHORP CONTROLLERTRANSMITTER
- Page 1 Alpha pH 100 C/CX pH/ORP Controller / Transmitter INSTRUCTION MANUAL MODE ENTER READY RELAY SETU pH/OR Technology Made Easy ...
- Page 2 The information presented in this manual is subject to change as improvements are made, and does not represent a commitment of Eutech Instruments Pte Ltd. This instruction manual is written to cover as many anticipated applications of the Alpha pH 100 C/CX pH/ORP Controller/Transmitter as possible.
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Page 3: Table Of Contents
TABLE OF CONTENTS Introduction------------------------------------------------------------ 3 Getting Acquainted-------------------------------------------------- 4 Front Panel............. 4 Back Panel ............. 5 Selecting pH/ORP Measurement Mode ....6 Wiring ..............6 Operating the Controller ------------------------------------------- 7 The Main Display............ 7 Setting Up the Controller ------------------------------------------ 8 Setting and Changing the Password....... 8 4.1.1 Setting New Password............ -
Page 4: Introduction
1. Introduction The alpha pH 100 series pH/ORP Controller/Transmitter is the latest innovation of process controllers from Eutech Instruments. Incorporated with the ASIC (Application Specific Integrated Circuit) microprocessor technology, this panel- mounted on-line controller provides many user-friendly features desirable in pH/ORP controllers. This versatile pH/ORP unit can be used either for measuring and monitoring pH or ORP values at one time. -
Page 5: Getting Acquainted
2. Getting Acquainted 2.1 Front Panel The front panel consists of a 3 digit LED display together with 5 LED annunciators. There are also 4 keys as shown below. 8 8 8 MODE ENTER REA DY RELA Y SETUP pH/ OR The keys available are the (UP/INCREMENT), (DOWN/DECREMENT), MODE and ENTER keys. -
Page 6: Back Panel
2.2 Back Panel The back panel consists of two connectors. The first one is a 4- way screw terminal and the second is a 12-way screw terminal. Refer to the label on top of the unit for diagram. The connection for the 4-way screw terminals are (from the left to right): 1. -
Page 7: Selecting Ph/Orp Measurement Mode
You can set the temperature at a selected value. The temperature is set to factory default at 25.0 NOTE : Eutech Instruments will not be responsible for incorrect application of the controller using improper voltage sources or wrong jumper settings. -
Page 8: Operating The Controller
3. Operating the Controller 3.1 The Main Display MODE Press MODE key to switch to three main displays - the pH/ORP ENTER pH/OR P display, the temperature display and “SEt” display. Press MODE key once to get into 24.0 MODE the temperature measurement. -
Page 9: Setting Up The Controller
4. Setting Up the Controller 4.1 Setting and Changing the Password 4.1.1 Setting New Password To set a password, press MODE key MODE until the “SEt” is displayed. ENTER Press ENTER key and the SETUP display shows "CAL” and “PH” alternately. -
Page 10: Changing The Password
To calibrate the controller at any time, you may have to enter the password that you set, in order to access the calibration mode. Once you have entered the password correctly, the display shows "CAL PH” indicating that you are in one of the lower-level SETUP menus. -
Page 11: Calibrating The Controller
5. Calibrating the Controller 5.1 The Lower Level Menus The "CAL PH/CAL OrP" display is the first menu seen upon entering the lower-level menus, depending on which mode is set. Press key to display the various menus as shown in the figure below. Press ENTER key to go to the lower level menus. -
Page 12: Changing The Offset
complete the pH calibration, as fo pH 7.0. Press MODE key to return to measurement mode. Note : If the pH value is not near to any buffer, pressing ENTER will MODE not calibrate the controller. If at ENTER any point, you decide not to SETUP calibrate, you can return to the previous mode by pressing the... -
Page 13: Calibrating For Orp Measurement
5.4 Calibrating for ORP Measurement Make sure that the ORP mode is set before calibration. MODE Enter this menu by pressing ENTER MODE key twice to the “SEt” SETUP display if you are in measurement mode. Press ENTER key. If the password MODE has been set earlier, key in the ENTER... -
Page 14: Atc On/Off
the “CAL” and “PH” display blinks alternatively. Press key once, the display shows “CAL”“ C” blinking. Press ENTER and the display alternatively shows “Atc” and “On” or “Atc” and “OFF”. Use keys to choose between both ATC ON and ATC OFF. 5.5.2 ATC ON/OFF ATC ON : If a PT 100 is connected, A t c... - Page 15 ATC OFF : If a PT 100 is not used, A t c MODE then the ATC should be set to OFF. In step 3 above, choose by ENTER pressing keys to select SETUP ATC OFF. Then press ENTER. The display will now show the default of 25 C or the last set MODE...
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Page 16: Setting The Alarm Feature
5.6 Setting the Alarm Feature This menu allows you to change the High and Low Setpoint and Hysteresis values. See Section 8 for hysteresis applications. IMPORTANT : When SETUP mode is entered, the 4-20 mA output (only for transmitter CX model) freezes and the relay de- activates (if it was in an alarm condition). -
Page 17: The Hi Hys Menu
5.6.2 The Hi HYS Menu Enter this menu by pressing the MODE key to the “SEt” display MODE if you are in the measurement ENTER mode. SETUP Press ENTER key. If the password has been set earlier, key in the password using the method described in section MODE 4.1. -
Page 18: The Lo Set Menu
5.6.3 The Lo SEt Menu Enter this menu by pressing MODE MODE key twice to the “SEt” display if you are in ENTER measurement mode. SETUP Press ENTER key. If the password has been set earlier, key in the password MODE using the method described in ENTER... -
Page 19: The Lo Hys Menu
5.6.4 The Lo HYS Menu Enter this menu by pressing the MODE key to the “SEt” MODE display if you are in the ENTER measurement mode. SETUP Press ENTER key. If the password has been set earlier, key in the password using the method described in section MODE 4.1. -
Page 20: Using The Controller Current Loop For Datalogging (For Transmitter Model Only)
6. Using the Controller Current Loop for Datalogging (for Transmitter Model Only) The 4-20 mA Current Loop A 4-20 mA current loop can be connected if a remote data logging is required. The current will be proportional to the pH/ORP displayed on the panel display. The 4-20 mA current loop can drive a load resistance of no more than 200 . -
Page 21: Additional Information
7. Additional Information The controller allows you to set High and Low alarms that switch on or off relays, and activating or deactivating devices linked to the controller. In cases where the pH/ORP values fluctuate close to the high or low setpoints, the relays will continuously switch on/off very quickly and may cause problems to the linked devices. -
Page 22: Appendix 1 - Jumper Positions (Inside Controller)
Explanation of the diagram in the previous page A - Reading reaches (Hi SET - ½ HI HYS), the Hi-Set relay remains inactivated. B - Reading reaches above High Setpoint but below (Hi SET + ½ Hi HYS), Hi-Set relay remains inactivated. C - Reading reaches between (Hi SET - ½... - Page 23 Selects the input voltage between 110 VAC or 220 VAC JP3 & JP4 Selects for pH or ORP mode. Please refer to Appendix 2A and 2B for the diagrams OPEN SHORT (DEFAULT) Terminals 5 & 6, 6 & 7, 5 & 6, 6 &...
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Page 24: Appendix 2A - Jumper Positions, Ph
Appendix 2A - Jumper Positions, pH Jumper Positions - inside the Controller... -
Page 25: Appendix 2B - Jumper Positions, Orp
Appendix 2B - Jumper Positions, ORP Jumper Positions - inside the Controller... -
Page 26: Appendix 3 - Ph Offset / Slope
Appendix 3 - pH Offset / Slope mV Axis Current pH curve 10.0 10.5 pH Axis 4.0 4.5 Adjusted pH curve... -
Page 27: Technical Specifications
8. Technical Specifications pH Range 0.0 to 14.0 pH Resolution 0.1 pH Relative Accuracy +/- 0.1 pH mV Range -1250 to +1250 mV Resolution 10 mV Relative Accuracy +/- 10 mV Temperature Automatic / Manual (0 to 100.0 Compensation Temperature 0 to 100 Resolution Relative Accuracy... - Page 28 NOTES...
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