HE 5731 Operating instructions
7
# 373344, Version 1.5
Safety Information
2.2. Safety in the individual operating phases
When installing the control unit and during operation, the following safety instructions
must be observed.
Danger of Electrocution!
Before working on the device, switch off all power supplies used. The
electrical cables must be laid according to the respective national regula-
tions (in Germany VDE 0100). The measuring lines must be laid sepa-
rately from the mains leads. The connection between the connection for
the functional earth (in the respective device carrier) and a protective
conductor must be established.
Danger of Electrocution!
Any interruption of the protective conductor in the device carrier can lead
to the device becoming dangerous. Intentional interruptions are not per-
mitted. If it is suspected that safe operation is no longer possible, the de-
vice is to be decommissioned and secured against unintentional opera-
tion.
Danger of Electrocution!
Do not open the device while it is live! When opening the devices or re-
moving covers and parts, live parts may be exposed. Connecting points
can also be live!
WARNING!
The device must never be put into operation despite any visible damage.
WARNING!
During installation, commissioning, maintenance and troubleshooting, ob-
serve the accident prevention regulations applicable to your system, e.g.
DGUV Regulation 3 "Electrical installations and equipment".
WARNING!
Clean dirty contacts with oil-free compressed air or with spirit and a lint-
free cloth.
Warning of material damage caused by electrostatic charge!
Observe the safety measures according to BS EN 61340-51/-3 to avoid
electrostatic discharge!
