User manual EUTECH INSTRUMENTS ALPHA DO 2000 PG POLAROGRAPHIC DISSOLVED OXYGEN CONTROLLER TRANSMITTER

[. . . ] Alpha DO 2000 PPG Processor/Transmitter Dissolved Oxygen ( ppm / m/L / % ) 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, AUTOCAL, 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. [. . . ] When calibrating with manual temperature compensation, the transmitter automatically changes from the preset process temperature to the calibration temperature. After leaving the Calibration mode, the transmitter switches back to the process temperature (for setting the calibration temperature and the process temperature, see section 6. 3). · 17 Instruction manual Alpha DO 2000 5. 3 View Probe Condition The probe condition is an indication of its current working condition with respect to its original condition. The probe condition is calculated and stored in the controller each time calibration is done. You can view probe condition without entering into calibration mode. 1 % MEAS 89. 5 CAL 24. 5 ATC 2 000 C. CD ENT CAL 3 CAL DO ENT CAL ENT 4 ENT CAL 5 ENT CAL 6 % 0. 0 95. 5 100. 0 ADJ 1. While in Measurement mode press CAL key. The display prompts you to enter the calibration security code (CCD). Leave the security code at "000" (view only mode). The display shows the zero point current in nA. The display shows the current in nA for the second calibration point. The display shows the selected measuring range in %. Press ENT key to return to the Measurement mode. NOTE: If no key is pressed for 30 seconds during the above steps, the controller automatically returns to the Measurement mode. 18 Instruction manual Alpha DO 2000 6. Setup Mode 6. 1 Enter Setup Mode In the Setup mode the transmitter can be configured to your individual requirements. 1. While in Measurement mode press 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 % °C MEAS 13. 0 ENT - "SCD 000" if you only want to view parameter settings (view only mode) 3. Press ENT key. ENT SETUP HOLD OFS ENT Offset settings see section 6. 2 Temperature settings see section 6. 3 Relay A (set point 1) settings see section 6. 4 Relay B (set point 2) settings see section 6. 4 Controller settings see section 6. 5 SETUP HOLD ENT SETUP HOLD ENT SETUP HOLD ENT SETUP HOLD ENT SE TUP ENT HOLD Current output 1 settings see section 6. 6 Current output 2 settings see section 6. 7 SETUP HOLD ENT SETUP HOLD ENT Wash relay settings see section 6. 8 SETUP HOLD ENT Configuration settings see section 6. 9 SETUP HOLD ENT DO CAL Calibration see section 6. 10 NOTE: To exit Setup mode at any time press and keys simultaneously (escape). The transmitter returns to the Measurement mode. 19 Instruction manual Alpha DO 2000 6. 2 Electrode Offset Settings (OFS) The electrode offset settings allow you to zero the transmitter without a sensor. For real zero calibration, use the calibration procedure as described in section 5. If no simulator is used, a 22 k NTC must be connected to pins 24 and 25 of the terminal connector on the backside of the unit (see section 3. 2). 1 2 5 6 ENT ppt SETUP HOLD OFS ENT ENT SETUP HOLD NO OFS 2 ENT SETUP HOLD SETUP HOLD 00 . SAL BAR PRES 6 ENT SETUP HOLD 7 1. 013 BAR ENT SETUP HOLD YES OFS ENT This screen will not be visible if DO Unit of Measurement is set to % (In Configuration settings) SETUP HOLD H9 PRES 6 SETUP HOLD 3 00 . OFS ENT % SETUP HOLD PSI PRE S SETUP HOLD 4 00 . ADJ % ENT 1. From the setup mode select the "OFS" screen and then press ENT key. Selecting to modify offset value: By default, controller shows "NO OFS". [. . . ] Please include data regarding the reason the items are to be returned. For your protection, items must be carefully packed to prevent damage in shipment and insured against possible damage or loss. Thermo 38 Instruction manual Alpha DO 2000 Scientific will not be responsible for damage resulting from careless or insufficient packing. A restocking charge will be made on all unauthorized returns. [. . . ]