HE 5731 Operating instructions
8
# 373344, Version 1.5
Technical data
Explosion Prevention!
The device is suitable for use in explosion zone 22. Before opening the
device, it is essential to ensure that no explosive environmental condi-
tions, such as dust generation, exist.
Troubleshooting!
At the beginning of troubleshooting, all possible sources of faults on addi-
tional devices or supply lines (measuring lines, wiring, downstream de-
vices) should be taken into consideration. If the fault was not found after
checking these points, we recommend sending the device to the supplier.
Decommissioning!
Switch off the power supply on all poles if the device is to be decommis-
sioned. Secure the device against unintentional operation!
If the device is connected to other devices and / or equipment, the effects
must be considered and appropriate precautions taken before switching
off.
Machine
Identification
The HE 5731
is marked with:
II3D
Device category:
Use in Zone 22 for dust during normal operation
Ex
Designates an electrical equipment
Tc
Type of ignition protection:
Protection by housing
IIIC
Dust group:
Conductive dusts
T135°C
Temperature class:
Maximum permissible surface temperature
Dc
Device protection level:
Use in Zone 22 for dust
IP65
Protection class:
Dust-tight and protected against water jets
The following special regulations must be observed:
Connect cables professionally in glands.
Close not needed housing bores with locking bolts.
Cleaning of the housing is only permitted with moist cleaning agents to avoid
static charging.
Cleaning is necessary to prevent increased dust generation on the device.
Operation under voltage, in zone 22, only in closed state.
Before closing, ensure that the device housing is free of dust
