Emerson Rosemount 5900S Reference Manual page 143

Reference Manual
00809-0100-5900
Figure 4-16: Simulation Switch
4.11.6 Process alarms
Process Alarm detection is based on the OUT value. Configure the alarm limits of the
following standard alarms:
• High (HI_LIM)
• High high (HI_HI_LIM)
• Low (LO_LIM)
• Low low (LO_LO_LIM)
To avoid alarm chattering when the variable is oscillating around the alarm limit, an alarm
hysteresis in percent of the PV span can be set using the ALARM_HYS parameter.
The priority of each alarm is set in the following parameters:
• HI_PRI
• HI_HI_PRI
• LO_PRI
• LO_LO_PRI
Rosemount 5900S Radar Level Gauge
ON P
P
1 2
Configuration
September 2019
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