Omega Engineering CN3271 Series User Manual page 15

HS
(Limiter
Hysteresis)
ON
Relay OUT 1
OFF
ON
"Reset" LED
OFF
Flash
Upper display
FLASH FLASH
Steady
A, B, C = Acknowledgment actions.
NOTE: Acknowledgment B has no effect.
Example 2 - C1 = Hi and C2 = 1
HS
(Limiter
Hysteresis)
ON
Relay OUT 1
OFF
ON
"Reset" LED
FLASH
FLASH
OFF
Flash
Upper display FLASH FLASH
Steady
A, B = Acknowledgment actions.
C 3 C 3 C 3 C 3 C 3 = = = = = Rearm at Power-up Rearm at Power-up Rearm at Power-up Rearm at Power-up Rearm at Power-up
Auto = Automatic rearm
nAn = Manual rearm
LHL-1-NEUTRO.pmd 12
C 4 C 4 C 4 C 4 C 4 = = = = = Shutdown memory Shutdown memory Shutdown memory Shutdown memory Shutdown memory
0 = The shutdown condition will be saved (at
Su
next power up it will be reactivated)
(Limiter
1 = The shutdown condition will be lost in
threshold)
case of power down
C5 = C5 = C5 = Time Constant of the Filter applied C5 = C5 = Time Constant of the Filter applied Time Constant of the Filter applied Time Constant of the Filter applied Time Constant of the Filter applied
to the to the to the to the to the Measured Value for Limit Measured Value for Limit Measured Value for Limit Measured Value for Limit Measured Value for Limit
A c t i o n . A c t i o n .
A c t i o n . A c t i o n . A c t i o n .
Range: From 0 (filter OFF) to 8 seconds
Note: First order filter with selected time
Constant.
P 1 P 1 P 1 P 1 P 1 = Alarm Function = Alarm Function = Alarm Function = Alarm Function = Alarm Function
(Skipped when the option is not available)
nonE = Not provided
AL.P = Process alarm
Su
AL.b = Band alarm
(Limiter
threshold)
AL.d = Deviation alarm
When C1 = Hi.Lo, "AL.b" and "AL.d" are not
available.
P 2 P 2 P 2 P 2 P 2 = = = = = Alarm Alarm Alarm Alarm Alarm configuration configuration configuration configuration configuration
(Skipped if option is not available or P1 = none)
H.A. = High alarm with automatic reset
L.A. = Low alarm with automatic reset
H.A.Ac = High alarm with automatic reset and
"Silence" function.
L.A.Ac = Low alarm with automatic reset and
"Silence" function.
H.L. = High alarm with manual reset
L.L. = Low alarm with manual reset
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19/04/2004, 15.07