Omega i Series User Manual page 30

3.2.6 Alarm 1 Menu (continued)
ACTIVE SUBMENU:
Press d
Press d
Above: A larm 1 condition triggered when the process variable is greater than the
Alarm Hi Value (Low value ignored).
Below: A larm 1 condition triggered when the process variable is less than the
Alarm Low Value (Hi value ignored).
Hi/Low: A larm 1 condition triggered when the process variable is less than the
Alarm Low Value or above the Hi Value.
Band: A larm 1 condition triggered when the process variable is above or below
the "band" set around Setpoint 1. Band equals Hi Value (Low Value ignored). A
"band" is set around the set point by the instrument only in the "Deviation" Mode.
The Band for the A L 1 would be following the Setpoint 1 value.
The Band for the A L 2 would be following the Setpoint 2 value.
The Band or the Deviation Value should be entered under:
AL1 High (if they want A larm 1)
AL2 High (if they want A larm 2)
AL Low value is ignored in the Band mode.
Example: if customer requires a Deviation Value of ±10 degrees around a
setpoint (using Output 2 as alarm)
Alarm 2: -­ Deviation
Contact Closure type: Deviation -­-­ Band
AL2 High: 10 (Band they want around Setpoint 2)
Then the Band Value is to be entered under A L2 HI: 10 not 80 + 10 = 90
11) Display flashes previous selection. Press b to scroll
through the available selections: ABoV Above, BELo Below,
HI.Lo HI/Low and BAND Band. (Band is active if _DEV
Deviation was selected).
12) Display shows STRD stored message momentarily and
then advances to A.P.oN only if it was changed, otherwise
press a to advance to A.P.oN Alarm Enable/Disable at Power
On Submenu.
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