51
11 Calibration
11.1 General
The device offers various calibration options to increase the precision.
11.2 Calibrating the relative cell constant
In order to meet enhanced demands for precision, the cell constant must first
be calibrated.
Requirements
- The supply voltage for the device must be present.
see Chapter 7 "Installation", Page 25ff.
- The sensor must be connected to the transmitter (applies to the split
version).
- The transmitter is in the measurement mode.
✱
Immerse the conductivity sensor in a reference solution with a known
conductivity.
✱
Press the
key for at least 3 seconds.
✱
Use the
and
keys to select CALIBRATION LEVEL; use the
key to
confirm the selection.
The conductivity sensor should be cleaned and calibrated at
regular intervals (depending on the medium being measured).
The K1 LED blinks during calibration.
The temperature of the sample solution must remain constant
during calibration!
PGM
PGM
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