User manual EUTECH INSTRUMENTS SALT 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. 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. If there are doubts in the use of these meters, please do not hesitate to contact the nearest Eutech Instruments Authorized Distributor. [. . . ] See Section 5. 6 ­ Normalization Temperature. 4. 2 Without ATC (Manual Temperature Compensation) You can use manual temperature compensation after manually entering the temperature value of your process into the meter. The meter will then compensate from this fixed value to the normalization temperature. To activate manual temperature compensation, simply unplug the temperature sensor from the meter (mini phono plug) and follow the steps 2 thru 6 of Temperature Calibration. See Section 3. 6 ­ Temperature Calibration. -15- Instruction Manual COND 6+, TDS 6+, SALT 6+ 4. 3 1. Taking Measurements Rinse the electrode with de-ionized or distilled water before use to remove any impurities. To avoid contamination or sample dilution, rinse probe with a small volume of your sample. 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. 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. 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. 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. "Yes" for auto calibration and "No" for manual calibration. (COND 6+ only) % Adjust Temperature Coefficient from 0. 0 to 3. 0 % per °C. Default value is 2. 1 % per °C. °C Normalization Temperature. Default value is "no". Overview of Advanced Setup -19- Instruction Manual COND 6+, TDS 6+, SALT 6+ 5. 2 Select Cell Constant (COND 6+, TDS 6+ only) Your meter includes a probe with a nominal cell constant (k) of 1. 0. Use probes with k = 0. 1 and 10 (sold separately) for improved performance in extreme samples. k = 1. 0 ideal for mid-range measurements k = 10 ideal for high measurements >20 mS/cm (>10 ppt). Press or to select "1. 0", "0. 1" or "10. 0". [. . . ] Both the Actual TDS and the Actual Conductivity values must be in the same magnitude of units. For example, if the TDS value is in ppm the conductivity value must be in µS/cm; if the TDS value is in ppt the conductivity value must be in mS/cm. Check your factor by multiplying the conductivity reading by the factor in the above formula. Tip: When the TDS factor is set to 1. 0, Conductivity = TDS. -30- Instruction Manual COND 6+, TDS 6+, SALT 6+ 12. CALCULATING TEMPERATURE COEFFICIENTS To determine the temperature coefficient of your sample solution use this formula: Where: tc = Temperature coefficient CT1 = Conductivity at Temp 1 T1 = Temp 1 25 = 25 °C CT2 = Conductivity at Temp 2 T2 = Temp 2 NOTE: A controlled temperature water bath is ideal for this procedure. [. . . ]