Connection Diagram, Relays - Dräger VarioGard IR EX Gebrauchsanweisung

Connection Diagram, Relays

main alarm
0 1
Relay status
The unit with power supply have 2 relays on board, where signal devices can
be connected. The relay terminals are potential free.
The relays are assigned to alarm A1 (pre alarm, adjusted to 20% LEL) and
alarm A2 (main alarm, adjusted to 40% LEL).
Dip-Nr. No
12 Power
Mode 0 Relay 1 0
0
Relay 2
Mode 1 Relay 1 0
Relay 2 0
pre alarm
A1
0 1
Warm up Fault K<A1 A1 <=K<A2 K >= A2
0 0
0 0
0 0
0 0
A1, A2 = pre / main alarm
K = current gas concentrations
0 1 1
0 0 1
1 0 0
1 1 0
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