JUMO dTRANS T06 Ex, Руководство по эксплуатации

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6 Safety manual
50
6.10 Regular tests
The device test can be carried out as follows:
- Proof test A: complete test by the manufacturer; the device must be sent to the manufacturer for this purpose.
- Proof test B: comprehensive test; the device must be removed from the operating facility for this purpose.
- Proof test C: simplified test; the device can remain in the operating facility for this purpose.
Tests on a device without a sensor can be conducted using corresponding sensor simulators (resistance decade, reference
voltage source, etc.). The accuracy of the measuring devices or multimeter used must meet the device specification.
6.10.1 Proof test A
(corresponds to factory calibration)
For a complete check, the device must be removed from the operating facility and sent to the manufacturer.
v
For service addresses see back cover
6.10.2 Proof test B
With proof test B, the following values for the proof test coverage (PTC) can be achieved:
Voltage supply Detection of dangerous undetected failures (
λ
DU
) PTC
DC 24 V +10/-15 % 0.723 72.3 %
Voltage supply Detection of dangerous undetected failures (
λ
DU
) PTC
DC 24 V +10/-15 % 0.675 67.5 %