Omega Engineering CN3271 Series, User Manual

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13
NOTE:
1) For band alarm, H.A./H.A.Ac/H.L. signifies
outside band alarm, while L.A./ L.A.Ac/L.L.
signifies inside band alarm.
2) The "Silence" function allows the manual reset
of the alarm even if the alarm condition is still in
progress.
Example Example
Example Example
Example for P2 = H.A.
* Alarm Status: Relay energized (P3 = dir)
Relay de-energized (P3 =rEV)
Example Example Example Example Example for P2 = H.A.A.c
* Alarm Status: Relay energized (P3 = dir)
Relay de-energized (P3 =rEV)
Example Example Example Example Example for P2 = H.L.
* Alarm Status: Relay energized (P3 = dir)
Relay de-energized (P3 =rEV)
P3 = Alarm Action P3 = Alarm Action
P3 = Alarm Action P3 = Alarm Action P3 = Alarm Action
(Skipped if option not is available or P1 = none)
dir =
Direct action
(Relay energized in alarm condition)
rEV = Reverse action
(Relay energized in non-alarm condition)
(Alarm
Hysteresis)
Relay
Non alarm status
ON
OFF
FLASH FLASH
(Alarm
threshold)
Manual
reset
Alarm status*
ALM LED
Manual
reset
(Alarm
Hysteresis)
Alarm status*
Relay
Non alarm status
ON
OFF
ALM LED
FLASH FLASH
(Alarm
threshold)
Manual
reset
(Alarm
Hysteresis)
Alarm status*
Relay
Non alarm status
ON
OFF
FLASH FLASH
(Alarm
threshold)
Manual
reset
ALM LED
LHL-1-NEUTRO.pmd 19/04/2004, 15.07 13