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. Secondly, it serves as a handy reference guide. This instruction manual is written to cover many anticipated applications of the Alpha pH 560 Controller. [. . . ] Upper display shows the current uncalibrated pH reading. LCD shows `READY' annunciator when the reading is stable. Press ENT key to confirm the reading. 2 3 The pH Controller moves to the second calibration point. The lower display shows next standard buffer value (pH 4. 01). 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. LCD shows `READY' annunciator when the reading is stable. 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. 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 calibration mode, the pH Controller reverts back to process temperature ORP Calibration The pH Controller allows a single point ORP calibration. ORP calibration process is available only when the measurement mode is set to ORP. (Refer Page 32 for switching measurement modes). Figure 4­19. ORP Calibration 1 From ORP measurement mode press CAL key to enter calibration mode as described in page 16. Place the electrode in a standard ORP solution of known OPR value. 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. & electrode annunciator The buffer annunciator appear in LCD. The upper display shows the current mV output of the electrode with offset adjustment (if any). The lower display shows the default (uncalibrated) mV output of the electrode. [. . . ] will determine if the product problem is due to deviations or customer abuse. Out-of-warranty products will be repaired on an exchange basis at cost. Before returning goods for any reason whatsoever, the Customer Service Dept. Items must be carefully packed to prevent damage during shipment, and insured against possible damage or loss. [. . . ]