Wika T32.xS Manuel d'utilisateur télécharger pdf (Page 22)

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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 dierence

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 rectied, 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 dierence 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 dierence is higher than the selected limit value.

(Cannot be selected for the “Dierence” sensor functionality, since the

output signal already indicates the dierence value).

6. Commissioning, operation

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Wika T32.xS Manuel d'utilisateur Page 22