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. Secondly, it serves as a handy reference guide. It is written to cover as many anticipated applications of the Waterproof CON 400/410 meters as possible. [. . . ] Taking measurements with READY indicator selected on If the READY indicator has been activated, the READY annunciator lights when the reading is stable. Switch the READY indicator on or off in SETUP program P 4. 1. 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. Press the HOLD key to release the reading. 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. 3. Press the RANGE key again (if needed) until desired range is selected. To re-select the Auto-ranging function, repeatedly press the RANGE key until the "MEAS" indicator appears without blinking. NOTES If the value of the solution you are measuring is higher than the range selected "Or" will appear on the primary display. Press RANGE until the correct range is selected. Figure 11 - Manual ranging The meter resets to the Auto-ranging function once it is turned off. You will have reset the manual ranging function each time you turn the meter off. Figure 12 - Out-of-range - 19 - Instruction Manual CON 400/410 5. 5 HOLD Function This feature lets you freeze the display for a delayed observation. To hold a measurement, press the HOLD key while in measurement mode. "HOLD" will appear on the display. To release the held value, press the HOLD again. NOTE: · · · This meter shuts off automatically after 20 minutes of nonuse (without key press). If the meter is shut off either automatically or manually, the HOLD value will be lost. For longer storage, use the memory functions (see pages 21-22). Your meter has an auto endpoint feature. When this feature is switched on, and when a reading is stable for more than 5 seconds, the display will automatically "HOLD" the reading. [. . . ] The lower display reads tCO and the upper display shows the temperature coefficient value. Press the MR/ key until the upper display shows 0. 0. Press CA/MEAS key twice to return to measurement mode. 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. 2. [. . . ]