User manual EUTECH INSTRUMENTS ALPHA DO 2000 DISSOLVED OXYGEN CONTROLLERTRANSMITTER

[. . . ] Instruction Manual lpha-DO2000 Dissolved Oxygen Controller/Transmitter Technology Made Easy . . . 68X216835 Rev 0 05/04 Preface This manual serves to explain the use of the lpha DO 2000 Series. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument, and secondly as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the lpha DO 2000 as possible. If you have any doubts concerning the use of the instrument, please do not hesitate to contact the nearest Eutech Instruments Authorised Distributor. [. . . ] Take the probe out of the zero oxygen solution, rinse in clean water, dry it and then calibrate in air. The "CAL" indicator flashes at the top. When the reading is stable, "READY" annunciator comes on. Press the ENT key to accept the high-level calibration (100%) and the status of the probe is displayed. Note: If the displayed value is not within ±50% of the high point value, the controller will not accept the high-level calibration and retains the previous calibration values. Note: If there is a calibration error, the controller displays "CAL ERR" and exits to the measurement mode (for direct access calibration mode) or to the setup menu (for calibration mode accessed via Setup mode). After calibration, the controller automatically displays the condition of the probe in the upper display and the temperature in the lower display (for Two-Point calibration only). You can view these values without calibration --- see Section 5. 4 for instruction. The probe condition is redetermined after each calibration. Press the ENT key (or CAL key) to return to the measurement mode (for direct access calibration mode) or to the setup menu (for calibration mode accessed via Setup mode). Note: When calibrating with manual temperature compensation, the controller automatically changes from the preset process temperature to the calibration temperature. After leaving the Calibration mode, the controller switches back to process temperature (for setting the calibration temperature and the process temperature, see Section 6. 3) 5. 4 View actual probe condition MEAS 89. 5 % CAL 24. 5 ATC 000 CD . C ENT 1. 00 24. 5 ENT MEAS o C CAL 89. 5 % C 24. 5 ATC o 1. While in Measurement mode press the CAL key. The display will prompt you to enter a security code. Leave the security code at "000" (view only mode). The display shows the actual probe condition. Press the ENT key to return to the Measurement mode. 16 Instruction manual lpha DO 2000 6 6. 1 SETUP MODE Enter Setup mode 1. While in Measurement mode press the ENT key. The display prompts you to enter the security code. Set the security code with or key to: - "SCD 22" if you want to change parameter settings - "SCD 000" if you want to view only parameter settings (view only mode) 3. Press the ENT key ME AS In the Setup mode the transmitter can be configured to your individual requirements. 13. 0 ENTER ENT % °C ENT ENTER SE TUP HOLD OFS ENT Offset Pressure compensation settings SE TUP HOLD ENT Temperature settings see section 6. 3 Relay A (set point 1) settings see section 6. 4 SE TUP HOLD ENT SE TUP HOLD ENT Relay B (set point 2) settings see section 6. 4 SE TUP HOLD ENT Controller settings see section 6. 5 SE TUP HOLD ENT Current output 1 settings see section 6. 6 Current output 2 settings see section 6. 7 SE TUP HOLD ENT SE TUP HOLD ENT Wash contact settings see section 6. 8 SE TUP HOLD ENT Unit settings see section 6. 9 SE TUP HOLD ENT DO Calibration see section 5 Note: Note: to exit Setup mode at any time press the and key simultaneously (escape). The transmitter returns to the Measurement mode. 17 Instruction manual lpha DO 2000 6. 2 Offset, Salinity and Pressure compensation (OFS) sub-function This mode allows you to change the offset parameter to make reading corrections without removing the electrode from the control system. [. . . ] Please follow the guidelines below before shipment. 10. 4 Guidelines for returning unit for repair Use the original packaging material if possible when shipping the unit for repair. Otherwise wrap it with bubble pack and use a corrugated box for better protection. Include a brief description of any faults suspected for the convenience of Customer Service Dept. , if possible. 10. 5 Maintenance and Cleaning Maintenance The lpha DO 2000 contains no user repairable components. Please contact Eutech Instruments or its distributor if there is any problem with the unit. [. . . ]