Assembly and installation | Operating Manual GW 601 | 11
6. Assembly and installation
ATTENTION!
Electrical connections must only be performed by specialist personnel in accordance with relevant installa-
tion requirements.
ATTENTION!
Make sure the device is de-energised when working on it. The power supply must only be switched on after
assembly and electrical connections have been completed.
IMPORTANT!
Note the power supply specified on the rating plate.
IMPORTANT!
Where possible, a continuous cable from sensor to the measuring input should be used. An extension of
the cable by plugs or terminal sockets increases the risk of faults caused by contamination, humidity or
excessive transition resistances.
ATTENTION!
Input, output and control lines and cables must always be kept separate. In particular, they must be routed
away from power circuit lines!
NOTE!
All cables must be routed to protect them from mechanical damage. Strain relief must be provided near the
cable entry point.
Stray interference will falsify the measurement. Power supply and measuring lines at close proximity should
only cross at a 90° angle. The permissible length of the measuring cables must be adhered to with regard
to the sensor used. When measuring ensure that the (plug) connections are clean and dry and that the lines
do not become brittle due to sharp buckling. The shielded cables normally used for such measuring lines
must be of the quality specified.
6.1 Measurement amplifier GW 601
The electrical installation for the gas warning device must contain a separating device (e.g. an automatic
circuit breaker) to ensure reliable separation from the power supply.
The device is designed for a fixed installation connected to a power supply of 230 V /AC. The device
corresponds to protection class I in accordance with EN 60335 and must be connected to a protective earth
conductor (PE).
When connecting to the relays, note that inductive loads must be dejammed. If this is not possible, the strip
relay contact on the device terminal must be protected by an RC protective circuit / suppression element.
For DC voltage the relays or contactor coil must be dejammed with a freewheeling diode.
RC protective circuit / suppression element
Current
Capacitor C
Resistor R
< 60 mA
10 nF 260 V
390 Ohm 2 Watt
< 70 mA
47 nF 260 V
22 Ohm 2 Watt
< 150 mA
100 nF 260 V
47 Ohm 2 Watt
< 1 A
220 nF 260 V
47 Ohm 2 Watt
Summary of Contents for GW 601
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