Macurco CD-6B Instrucciones Del Usuario página 8

Macurco CD-6B Manual (Rev-1.0) Eng
6. The Alarm 1 Relay and Alarm 2 Relay can be configured to normally open (N.O.) (default) or normally closed
(N.C.). Alarm 3 Relay can be wired N.O or N.C.
7. The relays will activate if the gas concentration exceeds alarm set point. Note that if the alarm relay set
point is set to "diS", the alarm relay will not engage at all.
8. The alarm relays can be configured for latching or non-latching. When latching is set to "On" and the gas
concentration exceeds the relay setpoint, power will need to be interrupted or the "TEST" button pressed to
un-latch (turn off) the relay condition. When latching is set to "OFF", the relay will deactivate once the gas
concentration drops below the alarm set point.
9. The Alarm 1 Relay will engage in trouble condition (if the Trouble Fan Setting Option is set to "On") and will
disengage once trouble condition is cleared.
REV – 1.0
Figure 3-2 CD-6B Rear View
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