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Alarms
P210, P220 =1 (Alarm)
The second parameter for each relay determines the function of the alarm.
P211, P221 - Relay Function
This parameter defines what function the alarm will respond to as follows.
1= Level
Alarm is based on the level in the vessel, and the
type of level alarm (P212, 222) and two setpoints
must be set (P213, 223 & P214, 224). Setpoints are
entered in Display Units or % of span as referenced
to Empty Level
*
.
2= Temperature
Alarm is based on the temperature, and the type of
temperature alarm (P212, 222) and two setpoints
must be set (P213, 223 & P214, 224). The
temperature used depends on the temperature
source selected (P852). Setpoints are entered in
o
C.
3= Loss of Echo
Alarm is raised if the Failsafe Timer (P809)
expires. No setpoints are required.
4= Loss of Clock
Alarm is raised if the real time clock fails. No
Note that the loss of echo and loss of clock will also be shown on the
display as “LOST ECHO” and “LOST CLOCK” respectively.
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