Endress+Hauser ASP Station 2000 Peristaltik Betriebsanleitung Seite 95

ASP station 2000 peristaltic
Endress+Hauser
there is the item UNCAL. If this is confirmed with YES, the sensor is reset to its original value. The
message 'UNCAL OK' appears on the display.
Calibrating conductivity measurement
For calibrating the conductivity sensor, you can choose from the following output forms: specific
conductivity, conductivity in original form and salinity. One version is enough to calibrate the
conductivity sensor.
Fig. 27: Menu structure for conductivity calibration
Calibrating specific conductivity:
1. Immerse conductivity sensor in calibration solution and wait for temperature equalization.
2. Reset calibration to factory setting (if necessary).
3. Enter conductivity value of current calibration solution.
4. Confirm calibration.
5. Compare current measured value with the conductivity value of the calibration solution.
The procedure for calibrating the conductivity sensor using the conductivity in the original form or
using the salinity measured value is the same.
Calibrating pH value measurement
For calibrating the pH measurement, you can choose from the following processes: one-point
calibration, two-point calibration and three-point calibration.
Fig. 28: Menu structure for pH measurement calibration
Procedure for one-point calibration:
1. Immerse pH sensor in buffer solution and wait for temperature equalization.
2. Reset calibration to factory setting (if necessary).
3. Enter pH value of the current buffer solution.
4. Confirm calibration.
5. Compare current measured value with the pH value of the buffer solution.
Operation
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