User manual EUTECH INSTRUMENTS ALPHA DO 1000 DISSOLVED OXYGEN CONTROLLER TRANSMITTER

[. . . ] Alpha DO 1000 Controller/Transmitter mg/l / % saturation / °C ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher. 1-888-pHAX-ION, A+, All in One, Aplus, AQUAsnap, AssuredAccuracy, AUTO-BAR, AUTO-CAL, AUTO DISPENSER, Auto-ID, AUTO-LOG, AUTO-READ, AUTO-STIR, Auto-Test, BOD AutoEZ, Cable-Free, CERTI-CAL, CISA, DataCOLLECT, DataPLUS, digital LogR, DirectCal, DuraProbe, Environmental Product Authority, Extra Easy/Extra Value, FAST QC, GAP, GLPcal, GLPcheck, GLPdoc, ISEasy, KAP, LabConnect, LogR, Low Maintenance Triode, Minimum Stir Requirement, MSR, NISS, One-Touch, One-Touch Calibration, One-Touch Measurement, Optimum Results, Orion Star, Pentrode, pHuture MMS, pHuture Pentrode, pHuture Quatrode, pHuture Triode, Quatrode, QuiKcheK, rf link, ROSS Resolution, SAOB, SMART AVERAGING, Smart CheK, SMART STABILITY, Stacked, Star Navigator 21, Stat Face, The Enhanced Lab, ThermaSense, Triode, TRIUMpH, Unbreakable pH, Universal Access are trademarks of Thermo Fisher. Guaranteed Success and The Technical Edge are service marks of Thermo Fisher. [. . . ] Note: If the displayed value is > ±5% of the theoretical value, the controller will not accept the zero calibration and retains the previous calibration values. 5. If the calibration is successful, the controller switches to the second point, 100% saturation. Take the probe out of the zero solution, rinse in clean water and calibrate in air. Press ENTER key to accept the value and the controller displays the status of the probe. Note: If the displayed value is > ±30% of the theoretical value, the controller will not accept the high-level calibration and retains the previous calibration values. 6. 7. After calibration to a second value, this controller will automatically display condition of the probe in the upper display and the temperature in the lower display. You can view these values without calibration --- see section 5. 1. 1 for instruction. If you entered the calibration mode using the CAL key, the controller will return to the Measurement mode. If you entered the calibration mode from the Advanced Set-up mode, the controller will return to the sub-function menu. Note: If there is a calibration error, the controller displays "ERR". If this happens, push both the and keys (escape) to restart the calibration beginning from step 1. 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 7. 4. 3). 14 7 7. 1 ADVANCED SET-UP MODE Electrode Offest (OFS), Salinity and Pressure sub-function This mode allows you to change the offset parameter to make reading corrections without removing the electrode from the control system. You can make adjustments of up to ±2. 00ppm; ±2. 00 mg/l; or ±10. 0%. At the end of the offset adjustment, the salinity value, followed by the pressure values (in mmHg or Pascal) respectively, is entered. HOLD SETUP HOLD SETUP HOLD mg/l SETUP ofs HOLD 0. 02 SETUP 8. 24 HOLD 0. 0 SETUP ppt sal 760 1. In this mode, the controller will add or subtract the value from the measured dissolved oxygen value and display the correct value. However, if you need to offset the value beyond the average offset you would expect in your application type, consider a full calibration or even electrode replacement. Record the controller's Dissolved Oxygen reading at the time the sample was taken. Measure the Dissolved Oxygen of your sample using a calibrated Dissolved Oxygen hand-held meter or bench meter (For a list of Thermo Scientific Instruments' DO hand-held meter, refer to section on Accessories). Push the ENTER key and scroll to Advanced Set-up security code "22". Press the or keys to scroll until the upper display shows "OFS". The lower display shows the current measured Dissolved Oxygen with its respective units. 7. 15 8. Press the or keys until the Dissolved Oxygen value coincides with the correct Dissolved Oxygen value noted in Step 2. As the or keys is pressed to adjust the Dissolved Oxygen value, you will see that the `offset' value in its upper display also changes. Note: The offset value is reset during full calibration (See section 6). [. . . ] 600 screw terminals 1012 at 25oC 5 meters Terminal blocks 5-pole / 17-pole, removable Slow-blow 250 V / 100 mA Dissolved Oxygen Range mg/l of Oxygen % Saturation of Oxygen Resolution mg/l of Oxygen % Saturation of Oxygen Relative Accuracy mg/l of Oxygen % Saturation of Oxygen No. of calibration points Flow Rate Response Time Temperature Resolution Relative Accuracy Sensor Temperature Response Temperature Compensation Pressure input Salinity input range Set-point and Controller Functions Controller characteristics Adjustable period with pulse length controller Adjustable period with pulse frequency controller Pickup / Dropout delay Switching D. O. hysteresis Contact outputs, controller Switching voltage Switching current Switching power Alarm Functions Function (selectable) Pickup delay Switching voltage Switching current Switching power Electrical Data and Connections Power Requirements Frequency Signal Output Load D. O. input Input impedance Cable length Connection terminal Mains fuse / fine wire fuse 32 EMC Specifications Emissions Susceptibility Environmental Conditions Ambient temp. [. . . ]