Chapter 2 Safety information
10
Operating manual HE 5422 MR
Version 1.2
The following provisions must be observed:
Attach the cables to the cable glands correctly.
Provide unneeded housing bores with locking bolts.
It is only permitted to clean the housing with wet cleaning agents in order to avoid static
charging.
It is required to clean the device in order to prevent increased dust formation.
Electrical connection!
Install the electrical lines in accordance with the respectively applicable local reg-
ulations (VDE 0100 in Germany). Lay the measuring lines separately from the
power lines. Produce a connection between the protective ground connection (in
the respective device carrier) and a protective ground.
Explosion protection!
The device is suitable for operation in explosion zone 22 with the lid closed. Prior
to opening the device, it has to be ensured that there are no explosive ambient
conditions, such as dust development.
The device is marked with:
II
Not suitable for mines susceptible to firedamp
3D
Dusts, normal safety
T135°C
Surface temperature
IP65
Protection class: dust-proof, scoop-proof
Troubleshooting!
When beginning to troubleshoot, all possible sources of error regarding additional
equipment or cables (measuring cables, wiring, slave devices) should be taken
into consideration. If no error source can be found after examining these points,
we recommend to send the device to the supplier.
Decommissioning!
Disconnect the power supply entirely if the device is to be decommissioned. Se-
cure the device against inadvertent operation!
If the device is interconnected with other devices and/or equipment, the effects of
the deactivation should be considered prior to disconnecting the device and the
appropriate precautions should be taken beforehand.
