JUMO digiLine CR HT10, Руководство по эксплуатации, Страница: 47 / 84

47
9 Calibration
5. The device displays the temperature coefficient determined. The temperature coefficient is accepted
if you press the "OK" operating key or discarded if you press the "Back" operating key. This com-
pletes the calibration.
Calibrating the temperature coefficient curve (TC-curve)
NOTE!
To calibrate the TC-curve, a temperature measurement must be available at the device (integrated tem-
perature sensor or temperature from a master via an interface). Without acquisition of the temperature
of the process medium sample, the TC-curve cannot be calibrated.
 chapter 13.3.1 "CR input (resistivity conductivity)", page 71
Procedure for calibrating the temperature coefficient curve (TC-curve)
1. Start calibration of the temperature coefficient curve:
Device menu > Calibrate > Calibration of TC-curve
2. Use the "Up" and "Down" operating keys to select the measuring range to calibrate from measuring
ranges 1 to 4 and confirm by pressing the "OK" operating key.
3. Use the "Up" and "Down" operating keys to change the displayed starting temperature and confirm
entry of the value by pressing the "OK" operating key.
Keep in mind that the starting and end temperature must differ by at least 20 °C.
4. Use the "Up" and "Down" operating keys to change the displayed end temperature and confirm entry
of the value by pressing the "OK" operating key.
Keep in mind that the starting and end temperature must differ by at least 20 °C.
5. The device now displays in succession the calibration points of all 7 temperature values from the
starting to the end temperature. Each of the temperature values to be approached and the currently
measured conductivity value are displayed. Bring the temperature of your process medium sample
to the each temperature displayed. When each of the temperature values is reached, automatic val-
ue acquisition takes place for the requested temperature.
6. After successful value acquisition at all 7 calibration points, a summary of the temperature coeffi-
cients determined for the individual temperature intervals is displayed. The temperature coefficients
are accepted if you press the "OK" operating key, or discarded if you press the "Back" operating key.
This completes the calibration.