User manual EUTECH INSTRUMENTS ECOSCAN CON 5 CONDUCTIVITY & TDS 5 TDS METER

[. . . ] These sturdy meters measure up to 3 different ranges with auto-ranging capability that switches to appropriate measuring range automatically. The instruction manual is organised for quick reference with step-by-step procedures that give you thorough review of the various features and meter operations. Included with your meter are a 2 stainless steel pin Conductivity electrode with built-in temperature sensor (for ATC), a rubber boot, 4 alkaline "AAA" batteries, instruction manual and warranty card. To order other accessories and buffer standard solutions, please refer to the Section on Accessories for more information. 2 EcoScan CON 5 / TDS 5 2. [. . . ] CALIBRATION 3. 1 Conductivity Calibration (EcoScan CON5) The meter is capable of calibrating 1 point per range (3 points across entire measurement range). If a range is not calibrated, the meter automatically detects the closest range calibrated and uses the calibration information. Calibrate to all measurement ranges to ensure the highest accuracy throughout all measurement range. Note that EcoScan will not accept calibration values less than 40 µS/cm (20 ppm). All new calibration values will automatically override existing data. If you are measuring in solutions with Conductivity lower than 100 µS/cm or TDS lower than 50 ppm, calibrate the meter at least once a week to get good accuracy. If you are measuring in the mid ranges and you wash the probe in deionised water and store it dry, calibrate the meter once a month. If you take measurements at extreme temperatures, calibrate at least once a week. Ensure that you use new Conductivity standard solutions or sachets during calibration. Do not reuse standard solutions as it may be contaminated and affect the calibration and accuracy of measurements. Store solutions in a dry, cool environment if possible. Always rinse the probe with either tap water or rinse solution before and after each calibration/sample measurement to avoid cross-contamination. For details please refer to section on Probe care and maintenance. 1413 µS/cm into a clean container. Power on the meter, and the meter will automatically enter Conductivity measurement mode. Immerse the electrode sufficiently into one of the containers of your standard solution. Stir gently and wait for reading to stabilise (approx. Tap the electrode lightly on the bottom of the container to remove any air bubbles trapped. Press CAL key to enter calibration mode. The LCD shows "CA" momentarily, and display shows the factory calibrated value flashing. 8 EcoScan CON 5 / TDS 5 CA 1395 uS 4. Press (up) or (down) key to scroll the reading until the displayed value matches your standard solution i. e. Press ENTER key to confirm calibration and the LCD displays the new set reading and revert to measurement mode. 1413 uS 6. [. . . ] Note that this displayed value should either be 25. 0 oC or last set temperature value. CA 4. 5. 25. 0 o C Press (up) or (down) key until the display shows the correct temperature. The arrow keys will scroll to the maximum allowable value of ±5 oC. The LCD displays "CO" momentarily, and the meter reverts to measurement mode. CO 25. 0 o C 12 EcoScan CON 5 / TDS 5 4. [. . . ]