20
Commissioning procedure
Establishing the measuring range and actual value output
Note
When mains voltage is supplied (during commissioning), the first output will be 4 mA,
then the output current increases until it reaches the actual value.
Checking the setting of temperature coefficient T
K
For linear compensation of the measured conductivity value at 25°C, the temperature coefficient T
k
is
factory set to 2.1 % per °C. Once service temperature has been reached, you can check this setting by
carrying out a comparison measurement, e.g. as part of the commissioning procedure.
If there is a difference between the indicated conductivity and the measured comparison value, correct
the transmitter readings by setting a lower or higher temperature coefficient. Continue modifying the
T
k
setting step by step until the indicated conductivity value matches the measured comparison value.
Please wait 1 to 2 minutes after each step to allow the measured value to settle.
Code switch
Temperature coefficient
T
K
(% per °C)
4
5
6
7
OFF
OFF
OFF
OFF
0 (no compensation)
ON
OFF
OFF
OFF
1.6
OFF
ON
OFF
OFF
1.7
ON
ON
OFF
OFF
1.8
OFF
OFF
ON
OFF
1.9
ON
OFF
ON
OFF
2.0
OFF
ON
ON
OFF
2.1
Factory settings
ON
ON
ON
OFF
2.2
OFF
OFF
OFF
ON
2.3
ON
OFF
OFF
ON
2.4
OFF
ON
OFF
ON
2.5
ON
ON
OFF
ON
2.6
OFF
OFF
ON
ON
2.7
ON
OFF
ON
ON
2.8
OFF
ON
ON
ON
2.9
ON
ON
ON
ON
3.0
continued
continued
