User manual EUTECH INSTRUMENTS WATERPROOF CYBERSCAN CON 400410 & TDS 400 CONDUCTIVITYTDS METER

[. . . ] Instruction Manual CON 400 and CON 410 Waterproof Hand-held Conductivity/TDS Meter Technology Made Easy . . . 68X248904 Rev 3 01/04 Preface This manual serves to explain the use of the Waterproof CON 400/410 hand-held meters. It functions in two ways, firstly as a step by step guide to help you to operate the meter. It is written to cover as many anticipated applications of the Waterproof CON 400/410 meters as possible. If there are doubts in the use of the meter, please do not hesitate to contact the nearest Authorised Distributor. [. . . ] For non-compensated measurements, change the temperature coefficient to 0. 0% (see section 7. 6. 1) Selecting Automatic or Manual Temperature Compensation - 16 - Instruction Manual CON 400/410 5. 2. 2 Setting a manual temperature compensation value To use manual temperature compensation, you need to manually enter the temperature value of your process into the meter. You can select any temperature between 0 and 100 °C (32 to 212 °F). If necessary, select ATC off as described in section 5. 2. 1 on page 16. While in conductivity or TDS calibration mode, press the MODE key to enter temperature calibration mode. The primary display shows the current temperature setting and the secondary display shows the default value 25 °C (77 °F) or its last set value. Press the MI/ or MR/ keys to offset the Figure 9 - Manual Temperature Compensation temperature to the measured value from step 5. Press ENTER to confirm the selected temperature and to return to the conductivity or TDS measurement mode. The meter will now compensate conductivity or TDS readings for manually set temperature. NOTES: To exit this program without confirming the manual temperature compensation value, DO NOT press ENTER in step 7. Press CAL/MEAS instead. - 17 - Instruction Manual CON 400/410 5. 3 1. Taking Measurements Rinse the probe with DI or distilled water before use to remove any impurities adhering to the probe body. To avoid contamination or dilution of your sample, rinse probe with a small volume of your sample liquid. To take readings: 2. 3. Press ON to switch on meter and the MEAS annunciator appears on the top center of the LCD. Dip the probe into the sample. Figure 10 - During measurement When dipping the probe into the sample, take care to ensure that the liquid level is above its upper steel band. CON 410 meter only: Press the MODE key to toggle between conductivity and TDS readings. Taking measurements with READY indicator selected on If the READY indicator has been activated, the READY annunciator lights when the reading is stable. Taking measurements with the auto endpoint feature selected on When a reading is stable for more than 5 seconds, the auto endpoint feature will automatically "hold" the reading. The "hold" indicator appears on the left side of the display. Switch the Auto endpoint feature on or off in SETUP program P 4. 1, see page 30 for instructions. - 18 - Instruction Manual CON 400/410 5. 4 Using Manual Ranging Function Your meter automatically selects the range in which your readings appear. The manual ranging function lets you select the specific range (and corresponding resolution) that you want to work in: CON 400 and CON 410 meters: 1. 0. 00 --- 19. 99 µS 0. 0 --- 199. 9 µS 0 --- 1999 µS 0. 00 --- 19. 99 mS 0. 0 --- 199. 9 mS CON 410 meter: 1. 0. 00 --- 9. 99 ppm 0. 0 --- 99. 9 ppm 0 --- 999 ppm 0. 00 --- 9. 99 ppt 0 --- 100 ppt (up to 199. 9 ppt depending on TDS factor setting) 1. To select the desired measuring range, press the RANGE key while in Measurement mode. The first range will appear on the display and the "MEAS" indicator blinks. 2. [. . . ] · Actual Conductivity: Value measured using a properly calibrated Conductivity/Temperature meter. 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; if the TDS value is in ppt the conductivity value must be in mS. Check your factor by multiplying the conductivity reading by the factor in the above formula. [. . . ]