Options for alarm on delay
Table C-1: Alarm On Delay
Option
Description
Always
Alarm on delay is always used.
Lost surface
Alarm on delay is used only for lost surface alarms. This may be useful in
applications when there are small and local rapid level changes caused by
surface turbulence.
Hardware faults and measurement values that exceed the alarm set
points will trigger alarm without any delay.
Figure C-4: Behavior of the Alarm On Delay
Always
A
B
C
Off
On
D
D
E
Lost surface
A
B
C
Off
On
D
E
A. Level
B. Time
C. SP1 - High alarm set point
D. Alarm on delay
E. Lost surface (invalid level)
C.3.3
Set point configuration
High alarm
Enable or disable the high alarm.
Configuration parameters
Reference Manual
May 2021
00809-0200-4480
82
Rosemount 1408A Level and Flow Transmitter