User manual EUTECH INSTRUMENTS CYBERSCAN PC 510 PHCONDUCTIVITY METER

[. . . ] Instruction Manual PC 510 Bench pH/Conductivity Meter 68X090816 Technology Made Easy . . . Rev. 3 12/03 Preface Thank you for choosing the PC 510 pH and Conductivity bench meter series. This manual serves to explain the use of the PC 510 bench meter. The manual functions as a step-bystep operational guide to help you familiarise with the meter's features and as a handy reference guide. [. . . ] NOTE: You can use the Conductivity Manual Ranging function to manually select a specific range in which your readings will appear. Taking measurements with READY indicator 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 P7. 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 features on or off in SETUP program P7. 1, see page 34 for instructions. 6. 2. 5 Using Auto and Manual Ranging Function (for conductivity & TDS) MEAS Auto-ranging Your meter automatically selects the range in which your readings appear. Dip the conductivity probe into a standard solution, say, 12. 88 mS. It will automatically select the most appropriate range, r 4, which is 0. 00 to 19. 99 mS. The secondary display on the LCD will momentarily display r 4 before it switches to measured temperature value. The primary display will show the actual conductivity value. See Figure 20. 199. 9 µS °C ATC MEAS 1999 µS °C ATC MEAS 19. 99 mS °C ATC MEAS 12. 88 25. 5 mS °C ATC Figure 21: Auto-ranging feature 18 Instruction Manual PC 510 Manual-ranging The manual ranging function lets you select the specific range you want to work in. To select the desired measuring range manually, press the RANGE key while in measurement mode. The meter will lock on to the appropriate range and the "MEAS" indicator blinks. Press 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. ENTER RANGE MEAS READY 1413 2. 23 µS °C ATC MEAS 1999 µS °C ATC MEAS READY 1413 2. 23 µS °C ATC Figure 22: Manual ranging NOTES: The meter will not let you manually select a range in which the reading will be over-range. The meter resets to the Auto-ranging function once it is turned off. You will have to reset the manual ranging function each time you turn the meter off. 19 Instruction Manual PC 510 7 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. [. . . ] The lower display reads tCO and the upper display shows the temperature coefficient value. Press the key until the upper display shows 0. 0. E. Press CAL/MEAS key twice to return to measurement mode 2. 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. [. . . ]