User manual EUTECH INSTRUMENTS TDS 6 PLUS

[. . . ] Instruction Manual Cond 6+ Conductivity/Temp TDS 6+ TDS/Temp Salt 6+ Salinity/Temp 68X243635 Technology Made Easy . . . Rev 0 02/09 Part of Thermo Fisher Scientific Preface This manual serves to explain the use of the Conductivity, TDS, and Salinity handheld meters. The models covered are the CON 6+, TDS 6+, and Salt 6+. This manual 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 Conductivity, TDS, and Salinity handheld meters as possible. [. . . ] Allow time for the reading to stabilize. NOTE: The protective probe guard must be attached during measurement. Erroneous results will occur while the probe guard is removed. Always immerse the probe beyond upper steel band for best results. Use the fill line on the outside of the probe guard for reference. 2. 3. 4. 4 Using Manual Ranging Function (COND 6+, TDS 6+) By default your meter has auto-ranging ability and automatically selects the range in which your readings appear. Alternatively, to override auto-ranging you can manually select a specific range by pressing successively for each measurement range. The five ranges are: Conductivity Range (CON 6+) 0 ­ 20. 00 S/cm 0 ­ 200. 0 S/cm 0 ­ 2000 S/cm 0 ­ 20. 00 mS/cm 0 ­ 200. 0 mS/cm TDS Range (TDS 6+) (using 0. 5 TDS factor) 0 ­ 10. 00 ppm 0 ­ 100. 0 ppm 0 ­ 1000 ppm 0 ­ 10. 00 ppt 0 ­ 100 ppt -16- Instruction Manual Auto-ranging Manual ranging: 0 - 20. 00 uS/cm COND 6+, TDS 6+, SALT 6+ Manual ranging: 0 - 200. 0 uS/cm µS µS µS mS mS µS Manual ranging: 0 - 200. 0 mS/cm Manual ranging: 0 - 20. 00 mS/cm Manual ranging: 0 - 2000 uS/cm NOTE: If the value of the solution you are measuring is higher than the range selected [Or] (over range) will appear. The meter resets to Auto-ranging function once it is turned off. You will have reset the manual ranging function each time you turn the meter off. -17- Instruction Manual COND 6+, TDS 6+, SALT 6+ 4. 5 HOLD Function µS For prolonged observation of a reading, press HOLD while in measurement mode to freeze the display. To hold a measurement, press HOLD while in measurement mode. To release the held value, press the HOLD again. [HO] will disappear and measure is resumed. NOTE: HOLD ENTER HO 5. µS This meter shuts off automatically after 20 minutes of the last key press. If the meter is shut off either automatically or manually, the HOLD value will be lost. 5. 5. 1 ADVANCED SETUP FUNCTIONS Advanced Setup Overview Advanced setup allows customization settings such as; selecting electrode's cell constant, normalization temperature, temperature coefficient, TDS factor (TDS 6+), automatic or manual calibration (COND 6+), single-point or multi-point calibrations (COND 6+ and TDS 6+), and to reset meter to factory default. Press MODE and then ON, holding both keys for 2 seconds. Release the ON key before releasing the MODE key. If successful, [StUP] will appear briefly followed by [CELC] (for COND 6+ and TDS 6+) or [tCo%] (for SALT 6+). Press or to select the desired advanced setup function. -18- Instruction Manual COND 6+, TDS 6+, SALT 6+ Entering Advanced Setup Mode Cell Constant. (COND 6+, TDS 6+ only) Select Automatic Calibration. "Yes" for auto calibration and "No" for manual calibration. [. . . ] Immerse the probe into a sample of your solution and adjust the temperature coefficient to 0% (that is, no compensation) by following instructions as described in Section 6. 5 ­ Temperature Coefficient. Condition the sample solution and probe to a temperature (T2) that is about 5 °C to 10 °C different from T1, and note the conductivity reading CT2. NOTE: Record your results for future reference. Ideally T1 and T2 should bracket your measurement temperature, and should not differ by more than 5 °C. Calculate the temperature coefficient of your solution according to the formula shown above. [. . . ]