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There would not be an alarm message�
Due to the usual manufacturing tolerances a temperature difference of max�
0�1 K can also occur with new sensor elements� This does not affect the
drift monitoring function�
In case of high temperature changes in the measured medium (e�g� filling
a hot medium into a cold vessel) there may be a short-term difference
between the measured temperature values of both sensor elements�
To avoid short-term drift warnings:
►
increase delay time ddr�
5.3.2 Sensor backup (redundancy switching)
If one of the two sensor elements fails (= diagnostic case 4), it is possible to
continue to measure the temperature with the other sensor element that is still
operational� However, drift monitoring is not possible any more�
In 2-wire operation the setting [drEd] = ON must be selected so that the
measured temperature value can be continued to be transferred�
