User manual EUTECH INSTRUMENTS ALPHA PH 560

[. . . ] Alpha pH 560 pH Controller pH/mV/ºC meter Preface This manual serves to explain the use of the Thermo Scientific Alpha pH 560 Controller. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument. This instruction manual is written to cover many anticipated applications of the Alpha pH 560 Controller. If you have doubts in the use of the instrument, please do not hesitate to contact the nearest Authorised Distributor. [. . . ] This error can also occur if non-standard buffers are used or the electrode has worn out. If this happens, press both and keys together to restart the calibration beginning from Step1. · When calibrating with manual temperature compensation, the meter automatically changes from the preset `process temperature' to the `calibration temperature'. After leaving the Thermo Scientific Alpha pH 560 19 calibration mode, the pH Controller reverts back to `process temperature'. For NIST Buffer Make sure that the pH Controller is set to accept NIST standard buffer in the Setup mode. It is recommended that you perform 2-point calibration at room temperature (25 oC), starting with the first buffer at pH 6. 86 followed by any other buffer value. (pH 4. 01, 1. 68, 9. 18 or 12. 45) 1-Point Calibration: Figure 4­17. NIST Buffer Single-Point Calibration 1 From pH measurement mode press CAL key to enter calibration mode as described in page 16. Immerse the temperature probe in the buffer solution if ATC mode is enabled. Immerse the potential matching pin in the buffer if symmetrical mode is enabled. Press CAL key to confirm the reading. 2 3 The calibration is completed. The pH Controller recalculates electrode properties based on the calibration. The new slope (in mV) is shown in the upper display and pH reading at 0mV (pH7. 00 ± offset) is shown in the lower display. Press ENT key to exit from the calibration. 4 The pH Controller reverts to pH measurement mode. 2-Point Calibration: 20 Thermo Scientific Alpha pH 560 Figure 4­18. NIST Buffer 2-Point Calibration 1 From pH measurement mode press CAL key to enter calibration mode as described in page 16. Immerse the temperature probe in the buffer solution if ATC mode is enabled. Immerse the potential matching pin in the buffer if symmetrical mode is enabled. Press ENT key to confirm the reading. 2 3 The pH Controller moves to the second calibration point. Use and keys to select your second buffer from one of the preset values: pH 4. 01 or 1. 68 or 9. 18 or 12. 45. Remove the electrode from the first buffer, rinse and then immerse it into the second buffer. Press ENT key (or CAL key) to confirm the reading. 4 The calibration is completed. The pH Controller recalculates electrode properties based on the calibration. The new slope (in mV) is shown in the upper display and pH reading at 0mV (pH7. 00 ± offset) is shown in the lower display. Thermo Scientific Alpha pH 560 21 Press ENT key to exit from the calibration. 5 The pH Controller reverts to pH measurement mode. NOTES: · To exit from pH calibration mode without confirming calibration, Press and keys together · When confirming the buffer measurement, if the measured pH value is not within ±1. 00pH from selected buffer value, the electrode annunciator blinks and ERR indicator appears in the display. [. . . ] Electrode cleaning solution Electrode storage solution NOTE: · To order Oakton accessories, contact the nearest Oakton distributor Order Code 00654-00 00654-04 00654-08 35653-01 35653-02 35653-03 35653-00 35653-04 00653-06 00653-04 Order Code 56717-32 35807-20 35801-21 05994-90 Thermo Scientific Alpha pH 560 39 Chapter 8 Troubleshooting Problem Power on, but no display Cause a) Loose connections b) Incorrect output voltage of the power adaptor Solution a) Ensure cables make good contact b) Use an power adaptor with specified output voltage a) Clean electrode and recalibrate b) Switch to Symmetric mode a) Ensure shield wire is properly connected to pin 7 Unstable pH reading a) Dirty electrode b) Electrical noise interference a) Electrical noise interference Oscillating temperature readings Slow response Blinking ATC Blinking electrode annunciator a) Dirty / Oily electrode a) No temperature probe connection during ATC mode a) Error in calibration a) Clean electrode a) Ensure temperature sensing cable makes good contact a) Ensure calibration standard solution is not contaminated. a) Ensure electrode makes good contact with Transmitter a) Ensure electrode makes good contact with Transmitter Or (pH) a) pH electrode is not connected a) Temperature probe is not connected when ATC enabled Or (Temperature) Thermo Scientific Alpha pH 560 40 Chapter 9 General Information Warranty Thermo Fisher Scientific warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and not the result of abuse or misuse within the warranty period, please return by freight pre-paid and amendment will be made without any charge. will determine if the product problem is due to deviations or customer abuse. [. . . ]