WIKA T32.xS - Handbuch (Seite 22)

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11258421.10 08/2014 GB/D
22 WIKA operating instructions model T32.xS
Freely programmable monitoring functions when 2 sensors
have been connected (dual sensor)
The following options are not available in the difference
mode!
Redundancy/hot backup:
In the case of a sensor error (sensor break, line resistance too high or
measured value outside the measuring range of the sensor) of one of
the two sensors, the process value will be the value from the working
sensor only. Once the error is rectified, the process value will again be
based on the two sensors, or on sensor 1.
Ageing monitoring (sensor drift monitoring):
An error signal on the output is activated if the value of the
temperature difference between sensor 1 and sensor 2 is higher than
a set value, which can be selected by the user. This monitoring only
generates a signal if two valid sensor values can be determined and
the temperature difference is higher than the selected limit value.
(Cannot be selected for the “Difference” sensor functionality, since the
output signal already indicates the difference value).
6. Commissioning, operation