User manual EUTECH INSTRUMENTS ALPHA TDS 200 TOTAL DISSOLVED SOLIDS CONTROLLERTRANSMITTER

[. . . ] Instruction Manual lpha TDS 200 1/8 DIN Total Dissolved Solids Controller with Temperature display and Transmitter Technolo gy Made Easy . . . 68X276105 rev 0 08/2002 PREFACE This manual serves to explain the use of the lpha TDS 200 controller/transmitter. This manual functions in two ways: first, as a step-bystep guide to help you operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the lpha TDS 200 controller/transmitter as possible. If there are doubts in the use of the lpha TDS 200 controller/transmitter, do not hesitate to contact the nearest Eutech Instruments Authorized Distributor. [. . . ] Key in password "022" as per procedure in Section 5. The screen will scroll P1. 3, HYS1, and current hysteresis value. Press or keys to adjust hysteresis value. Press and keys together to return to P1. 0. Press and keys together again, to return to TDS measurement mode. 23 8. 4 Set Point 2 ­ P2. 0 Setup program P2. 0 allows you to set parameters for relay 2. P2. 1: select relay 2 set point value P2. 2: select relay 2 as low or high set point P2. 3: set relay 2 hysteresis value (dead band) P2 . 0 S2 P P . 1 2 S2 P 00 18 P . 2 2 P23 . S2 P H St Y LOW 100 HI H G Press and keys together (ESCAPE) at anytime, to leave Setup mode and return to Measurement mode. P2. 1: Select relay set point value Set the TDS value that will activate Relay 2. If measured value overshoots or undershoots Set Point value, Relay 2 will be activated and corresponding LED on front panel will light. Key in password "022" as per procedure in Section 5. Press key until screen displays P2. 0 and SP2. The screen will scroll P2. 1, SP2, then current set point value. Press or keys and adjust second relay set point. Default value is 90% of full scale of range selected. Press ENTER to confirm and continue to step three of P2. 2, or press and keys together to return to P2. 0. Press and keys together to return to TDS measurement mode. 24 P2. 2: Set relay as high or low set point Select low set point to activate Relay when measured value undershoots Set point; select high set point to activate Relay when measured value overshoots Set point. Using both SP1 and SP2, you can select lo/lo, lo/hi, hi/lo or hi/hi set points. Key in password "022" as per procedure in Section 5. Press key until screen displays P2. 0 and SP2. The screen will scroll P2. 2, SP2, and LOW or HIGH (Default is HIGH). Press the or keys to toggle between LOW and HIGH. Press ENTER to confirm and continue to step 3 of P2. 3, or press and keys together to return to P2. 0. [. . . ] Instead, it continues to be active till the value reaches the amount set by the Hysteresis band. HYSTERESIS BAND Appendix 2: Factory Defaults Resetting the controller to factory default settings (See program P8. 0) clears all calibration data and most other setup functions. The following settings will remain unchanged: 1. Temperature compensation mode (ATC or MTC) 3. Temperature offset calibration value, if in ATC mode. Conductivity Defaults TDS range Set point 1 Set point 2 Temperature Defaults Temp. [. . . ]