elobau 671 Série Traduction De La Notice D'utilisation D'origine page 53

GB
Only use "intrinsically safe machine safety sensors" in
connection with a safety barrier and an elobau control unit after
consultation with the elobau company.
5 Mounting
Danger
 Note additional installation instructions (see section 3 Special
conditions for safe use).
 Install suitable circuit breakers upstream for use with devices
in hazardous areas to avoid inadmissible heating of the
machine safety sensor in case of a fault.
Consider the following criteria when choosing the fuse:
 Current rating as given in the rating specifications for the
switch contact / switch electronics (see Electrical specifi-
cations),
(take note of temperature class and ambient temperature)
 Breaking capacity according to the prospective short-cir-
cuit current of the supply net at the installation site.
 Ensure that only one power supply circuit (potential) is used
for Ex i applications.
 Observe standards relating to the installation of electrical
devices in potentially explosive areas.
 Ensure that the mounting distance between two sensors is at
least 50 mm.
 Observe markings on machine safety sensor and actuation
magnets.
 Ensure that the alignment marks on both the sensor and the
actuation magnet are facing each other.
Any direction of approach of the magnet to the sensor is
acceptable.
 Do not install sensor and actuation magnet in ferrous mate-
rial. Where necessary, use 20 mm of non ferrous spacer
around the sensor.
53/135
Risk to life due to improper installation!
 Ensure the sensor is installed and com-
missioned by specially trained and author-
ised personnel only.
Date: 20.04.2016