User manual EUTECH INSTRUMENTS CYBERSCAN PH 10002500 PHION METER

[. . . ] Instruction Manual pH 1000/ pH 2500 Bench pH/Ion Meter 68X090800 Rev. 5 07/03 Technology Made Easy . . . Instruction Manual pH 1000/ 2500 Instruction Manual pH 1000/ 2500 Preface Thank you for choosing the pH 1000/ 2500 bench meter series. This manual serves to explain the use of the pH 1000/ 2500 Bench meter. The manual functions in two ways, firstly as a step-by-step operational guide to help you familiarize with the meter's features and functions. [. . . ] Once the `READY' indicator displays, press CAL EDIT key to enter the concentration value of the standard. When entering concentration value, if decimal point is pressed, then rest of the digits (total 4 digits) must be entered e. g. The available calibration options include 0. 1; 1. 0 or 1; 10. 0 or 10; 100. 0 or 100 and 1000. Press YES to confirm the selected value or NO to cancel and re-enter the value. For the next calibration value, wash electrode with deionised water and dip it into second standard and repeat step 4. Press CAL/MEAS key to switch to measurement mode if calibration is done using less than 5 standards. The ISE probe is calibrated to the selected standard solutions. 3. 4. 5. At the end of fifth standard ion calibration, the meter switches NOTE: Minimum number of calibration for Ion is 2 points, maximum is 5 points. At least 2 standards (preferably one decade apart in concentration value) must be used to complete the calibration. Refer to Troubleshooting IMPORTANT : Make sure to wash electrode between samples to prevent cross-contamination. It is advisable to read samples in the order of low concentration to high concentration. 12 Instruction Manual pH 1000/ 2500 6. 7 Temperature Calibration In this calibration procedure, the ATC probe is attached to the meter and the ATC annunciator displays on the right hand side of the LCD. 1. Dip the temperature probe into a solution of known temperature, such as a temperature bath for a few minutes until the temperature probe stabilizes. Determine the temperature of the sample to be measured using an accurate thermometer. To perform temperature calibration, press MODE key to select the temperature mode. Press SET TEMP to set the desired temperature to match that measured value. The CON IMPORTANT : Always conform to the temperature limits of the sensor probe (e. g. epoxy pH probes with a built in temperature sensor should not be used or calibrated at temperatures above 80 oC. ) If unsure, check with specifications of the probe. 13 Instruction Manual pH 1000/ 2500 7 MEASUREMENT: READY, CONTINUOUS AND HOLD Measurement in the READY Mode 7. 1 The READY annunciator appears the readings are stable at the top left corner of the LCD. The reading is held as long as the variation of readings is within a range. For mV, tolerance is +/- 0. 3 mV < 400 mV and +/- 1. 2 mV > 400 mV). 1. Rinse the pH electrode using de-ionized or distilled water prior to use. If you are in the calibration mode, press CAL/MEAS key to revert to the measurement mode. Dip the electrode into the sample ensuring that the glass bulb of NOTE: If the READY indicator is turned off, the readings are instantaneous readings. [. . . ] If you do not get good readings, use a different pH electrode to confirm the meter is working properly. If the results are still not satisfactory, consult your distributor/dealer. 14. 2 Electrode Maintenance pH electrodes are susceptible to dirt, dehydration and contamination. Clean them regularly depending on the extent and condition of use. 14. 3 Storing pH/ORP electrodes For best results, always keep the bulb wet, preferably in pH storage solution. Eutech offers a complete range of electrode storage and cleaning solutions. After Use 1. [. . . ]