User manual EUTECH INSTRUMENTS ECOSCAN PH56 & ION 6 PHION PORTABLE METER

[. . . ] Eutech Instruments/ Oakton Instruments will not accept any responsibility for damage or malfunction to the meter caused by improper use of the instrument. The information presented in this manual is subjected to change without notice as improvements are made, and does not represent a commitment on the part of Eutech Instruments Pte Ltd/ Oakton Instruments. Copyright © 1999 Eutech Instruments Pte Ltd/ Oakton Instruments Rev. INTRODUCTION getting started 1 2 2. 1 2. 2 2. 3 2. 4 2. 5 2. 6 2. 7 2. 8 3. Description of Keypad Functions Description of LCD Annunciators Inserting & Removing the Rubber Boot Inserting New Batteries Battery Replacement Connecting the Electrode and Temperature Sensor Condition the pH Electrode Switching the Meter On Calibration 2 3 3 4 4 4 5 5 6 3. 1 3. 2 3. 2. 1 3. 2. 2 3. 2. 3 3. 2. 4 3. 3 3. 3. 1 3. 4 3. 5 3. 5. 1 3. 5. 2 4. pH Calibration Selection of pH buffer standards Resetting the User Calibrated Values pH Calibration using USA standard buffers pH Calibration using NIST standard buffers pH Calibration using Pb standard buffers Ion Calibration (Ion 5 and 6) Multi-point Ion Calibration Millivolt (mV) Calibration (for pH 6 only) Temperature Calibration With Temperature probe Without Temperature probe (no ATC) Taking Measurements Millivolt (mV) Reference Check (for Ion 5/6 only) Holding a Reading Releasing a Held Reading 6 7 7 8 9 10 11 12 14 15 15 16 17 Measurement 4. 1 4. 2 4. 3 4. 4 5. 10. 17 17 17 17 18 18 19 20 22 23 ELECTRODE Care and Maintenance TROUBLESHOOTING Specifications Accessories warranty RETURN OF ITEMS Instruction Manual pH 5/6 & Ion 5/6 1. [. . . ] Use the MODE key to toggle between USA, NIST or Pb standards as shown. 3. The display then reverts to pH measurement mode. 3. 2. 1 Resetting the User Calibrated Values If you need to have a new set of Ion or pH measurements or mV offset (in pH 6) taken, you may wish to reset the last Ion/pH/mV calibrated values. Press and hold the CAL key while switching on the meter using the ON key. The meter automatically clears all stored pH/Ion calibration or mV offset values and reverts to measurement mode. -7 - Instruction Manual pH 5/6 & Ion 5/6 3. 2. 2 pH Calibration using USA standard buffers 1. Pour a known pH buffer standard solution into a clean, dry container, e. g. Dip both pH electrode and temperature probe into pH 7. 00 buffer solution. A "CA" displays momentarily and the display shows the current uncalibrated reading flashing while in the calibration mode. 4. 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 10. 01 for higher accuracy. -8 - Instruction Manual pH 5/6 & Ion 5/6 3. 2. 3 pH Calibration using NIST standard buffers 1. pH 6. 86. Power on meter, and it automatically enters into measurement mode. Otherwise an error message "Er3" will be displayed if the slope of ISE is lower than 15mV/decade or higher than 90mV/decade. For 3-point calibration where the LCD last shows "100. 0", press ENTER key to proceed to last calibration point. Likewise, at the end of 3 point calibration the meter will display the mV slope of electrode "PXX" and the calibration values are successfully stored. Otherwise error message will appear in the LCD if the calibration was unsuccessful with no values stored into memory. rd - 13 - Instruction Manual pH 5/6 & Ion 5/6 3. 4 Millivolt (mV) Calibration (for pH 6 only) mV calibration is performed for ORP or Redox measurements, where you can adjust its mV value as a base value for measurements. The LCD shows "CA" momentarily followed by displayed reading flashes. 4. To proceed calibration use INC key to adjust the reading to your desired value. Pressing INC key continuously allows you to scroll to the maximum allowable value and then loops back to the minimum allowable value. The display shows "CO" momentarily and meter reverts to measurement mode showing the current set value. - 14 - Instruction Manual pH 5/6 & Ion 5/6 3. 5 Temperature Calibration 3. 5. 1 With Temperature probe The temperature probe (EC-PH5-TEM01P/ 35613-05) provided with the meter is factory-calibrated. If there is a need to replace with the new probe you should calibrate the temperature probe prior to pH calibration. Press MODE key to enter the o Temperature mode until " C" annunciator appears in the LCD. Compare the displayed value to a NIST certified thermometer or other thermometer known to be accurate. [. . . ] ELECTRODE CARE AND MAINTENANCE For best results, always keep the ISE capped dry and pH/ORP electrode bulb wet. Because your ISE or pH electrode is susceptible to contamination or dirt, clean it every 1 to 2 months depending on extent and condition of use. TROUBLESHOOTING Problem No display Cause Batteries not in place. Solution a) Insert batteries. b) Re-insert batteries in correct polarity. "LO" displays in the LCD Unstable reading Low battery a) Electrode not deep enough in sample b) Dirty electrode. [. . . ]