Macurco CM-12 User Instructions page 14

Selecting Alarm Relay Setting – "ArS"
To select the Alarm Relay Setting, in normal mode, push the Next button to get to "Con" or the Configuration menu. Then push the
Enter button to enter the Con menu. The fifth selection is the "ArS" or Alarm Relay Setting. Push Next three times to get to "ArS" then
Enter. If the display is "dIS" (disabled) push Next to change it to 50, 100, 150 or 200 ppm (flashing) then push Enter to confirm the
change (solid) and push Enter again to return to "ArS" in the Con menu. Push Next until "End" is displayed then push Enter to get back
to normal operation.
Selecting Alarm Relay Configuration – "Arc"
To select the Alarm Relay Configuration, in normal mode, push the Next button to get to "Con" or the Configuration menu. Then push
the Enter button to enter the Con menu. The sixth selection is the "Arc" or Alarm Relay Configuration. Push Next four times to get to
"Arc" then Enter. If the relay is "nO" (normally open) push Next to turn it to "nC" (flashing) then push Enter to confirm the change (solid)
and push Enter again to return to "Arc" in the Con menu. Push Next until "End" is displayed then push Enter to get back to normal
operation.
Selecting Fan Relay Settings – "FrS"
To select the Fan Relay setting, in normal mode, push the Next button to get to "Con" or the Configuration menu. Then push the Enter
button to enter the Con menu. The seventh selection is the "FrS" or Fan Relay setting. Push Next five times to get to "FrS" then
Enter. If the fan relay is "dIS" (disabled) push Next to change it to 15, 25, 35, 50 or 100 ppm (flashing) then push Enter to confirm the
change (solid) and push Enter again to return to "FrS" in the Con menu. Push Next until "End" is displayed then push Enter to get back
to normal operation.
Selecting Fan Relay Delay – "Frd"
To select the Fan Relay Delay setting, in normal mode, push the Next button to get to "Con" or the Configuration menu. Then push the
Enter button to enter the Con menu. The eighth selection is the "Frd" or Fan Relay Delay. Push Next six times to get to "Frd" then
Enter. If the delay is "0" (disabled) push Next to change it to 1, 3, 5, or 10 minutes (flashing) then push Enter to confirm the change
(solid) and push Enter again to return to "Frd" in the Con menu. Push Next until "End" is displayed then push Enter to get back to
normal operation.
Selecting Fan Relay Minimum Runtime – "Frr"
To select the Fan Relay Minimum Runtime setting, in normal mode, push the Next button to get to "Con" or the Configuration menu.
Then push the Enter button to enter the Con menu. The ninth selection is the "Frr" or Fan Minimum Run Time. Push Next seven
times to get to "Frr" then Enter. If the runtime is "0" (disabled) push Next to change it to 3, 5, 10 or 15 minutes (flashing) then push
Enter to confirm the change (solid) and push Enter again to return to "Frr" in the Con menu. Push Next until "End" is displayed then
push Enter to get back to normal operation.
Selecting Fan Relay Latching Option – "FrL"
To select the Fan Relay Latching Option, in normal mode, push the Next button to get to "Con" or the Configuration menu. Then push
the Enter button to enter the Con menu. The tenth selection is the "FrL" or Fan Relay Latching Option. Push Next nine times to get to
"FrL" then Enter. If latching is "OFF" push Next to turn it to "ON" (flashing) then push Enter to confirm the change (solid) and push
Enter again to return to "FrL" in the Con menu. Push Next until "End" is displayed then push Enter to get back to normal operation.
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