User manual EUTECH INSTRUMENTS ECOSCAN PH 56 PHMV METER

[. . . ] Instruction Manual pH 5/6 & Ion 5/6 pH/mV & Ion/pH Meter Series Technology Made Easy . . . 68X243601 Rev 7 04/04 Preface This instruction manual serves to explain the use of the pH 5/6 and Ion 5/6 meters. It functions in two ways: first as a step by step guide to help you operate the meter; second, it serves as a handy reference guide. This manual is written to cover as many anticipated applications of the pH 5/6 and Ion 5/6 meters as possible. If there are doubts in the use of this meter, please do not hesitate to contact the nearest Eutech Instruments/ Oakton Instruments Authorized Distributor. [. . . ] To abort or cancel calibration without accepting new value, press CAL key. Press ENTER key to confirm calibration and the LCD displays "CO" momentarily. For 2 or 3-point calibration, repeat step 3 with other pH buffer values of 4. 01 and/or 9. 18 for higher accuracy. -9 - Instruction Manual pH 5/6 & Ion 5/6 3. 2. 4 pH Calibration using Pb standard buffers 1. pH 6. 97. Power on meter, and it automatically enters into measurement mode. Ensure that you use new or fresh standard solutions during calibration. Do not reuse ion standard solution as it may be contaminated and affect the calibration and accuracy of measurements. Always store standard solutions in a dry, cool environment if possible. Check that your ISE and ion standard solutions are kept in good conditions, otherwise erroneous readings may be taken. Before use, remove any plastic protective cap of ISE (at the tip of sensor) and read manufacturer's instructional manual. Briefly rinse the electrode with clean deionised water to remove any residues. Rinse probes before and after each calibration or sample measurement to avoid crosscontamination. For more details please refer to Manufacturer's care and maintenance guide. - 11 - Instruction Manual pH 5/6 & Ion 5/6 3. 3. 1 Multi-point Ion Calibration 1. In case if you need to start calibration using 1. 0 ppm standard solution, you can skip the 0. 1 ppm calibration option (as mentioned * below). To begin, pour a known 1. 0 ppm standard solution into a clean container. The display shows "CA" momentarily followed by "0. 1" flashing. * At this moment, if you wish to calibrate 1 ion calibration option other than 0. 1 ppm, use key once to select 1. 0 ppm. Using or key you may select other options like 0. 1, 10. 0 or 100. 0 ppm. Press ENTER key and the displayed value shows corresponding measured mV reading that is equivalent to 1. 0 ppm. 1. 0 ppm) and the display will show the next calibration option, 10. 0 ppm. Rinse the electrode with distilled water and blot it dry if necessary. Press ENTER key and the displayed value shows measured mV reading that is equivalent to 10. 0 ppm. Allow the reading to stabilise. st - 12 - Instruction Manual pH 5/6 & Ion 5/6 9. 10. 0 ppm) and the display will show the next calibration option, 100. 0 ppm. [. . . ] Ensure any calibration points between each other must be within 1 decade (for Ion 5/6). 18 "Er1" display "Er2" display "Er3" display "Er4" display Buffer value out of tolerance Single point calibration ISE slope not within the specified tolerance Any calibration points not within 1 decade a) Display freezes b) Faulty electrode Not able to calibrate Instruction Manual pH 5/6 & Ion 5/6 7. SPECIFICATIONS Model Ion Range Resolution 0. 01 to 1999 ppm 0. 01 ppm for 0. 01 to 0. 99 ppm; 0. 1 ppm for 1. 0 to 199. 9 ppm; 1 ppm for 200 to 1999 ppm +/- 1% of reading 2 to 3 points (minimum 2 pts) 0. 00 to 14. 00 pH 0. 01 pH +/- 0. 01 pH 80 to 120% 1 to 3 points (push-button) pH 4. 01, 7. 00, 10. 01 (USA) pH 4. 01, 6. 86, 9. 18 (NIST) pH 4. 10, 6. 97 (Pb) 0. 0 to 100. 0 oC 0. 1 oC +/- 0. 5 oC Automatic / Manual (0 to 100 oC) -1000 to +1000 mV 1 mV +/- 2 mV -500 to 500 mV 0. 1 mV for ­200 to 200 mV; 1 mV for 200 to 500 mV +/- 0. 2 and 2 mV resp. · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · pH 5 pH 6 Ion 5 · · Ion 6 · · Accuracy No. [. . . ]