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

[. . . ] 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. GETTING STARTED 2. 1 Description of Keypad Functions The EcoScan CON 5/TDS 5 meter has 6 keys on its splash-proof keypad. MODE: Selects measurement mode for Conductivity/TDS or Temperature, CAL: Allows calibration mode for Conductivity/TDS and Temperature, or to abort calibration without confirming any set value. [. . . ] Press CAL key and the LCD will display "F. 67" indicating the current factor. F. 67 3. Press ENTER key to confirm and the meter reverts to its measurement mode. 7 EcoScan CON 5 / TDS 5 3. 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). 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. Always rinse the probe with either tap water or rinse solution before and after each calibration/sample measurement to avoid cross-contamination. 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. Tap the electrode lightly on the bottom of the container to remove any air bubbles trapped. 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. Alternatively you can abort the new calibrated value by pressing CAL key to exit from calibration mode. Important: Meter allows a tolerance range of 30% of its measured reading. You will not able to scroll through to the desired value if reading is out of its tolerance. 3. 2 TDS Calibration (EcoScan TDS 5) The calibration procedure for the EcoScan TDS 5 is the same as EcoScan CON 5 (refer to section 3. 1 for details). 9 EcoScan CON 5 / TDS 5 3. 3 Temperature Calibration 3. 3. 1 With Temperature probe For Preselected Curve The temperature sensor included with your meter is factory-calibrated. Over time, the temperature calibration may drift and require recalibration. [. . . ] 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. [. . . ]