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HE 5422 Operating Instructions
# 342338 | Version 1.3
Explosion Prevention!
With the cover closed, the device is suitable for use in ATEX zone 22.
Before opening the device, it is imperative to ensure that no explosive
environmental conditions exist, for example, dust.
Decommissioning!
Switch off the power supply on all poles if the device is to be
decommissioned. Secure the device against unintentional operation!
If the device is interconnected with other devices and/or systems,
consider any potential effects before switching off and take appropriate
precautions.
Troubleshooting!
At the beginning of troubleshooting, all possible sources of faults on
additional devices or supply lines (measuring lines, wiring, downstream
devices) should be taken into consideration. If the fault is not found after
checking these points, we recommend sending the device to the supplier.
