PULSAR MEASUREMENT
83
Alarms
P210, 220, 230, 240, 250 = 1 (Alarm)
The
second parameter
for each relay determines the
function
of the alarm.
P211, 221, 231, 241, 251
–
Relay Function
OPTION
DESCRIPTION
0 = Off (Default)
Relay will not operate.
1 = Level
Alarm is based on the level in the vessel, and the type of
level alarm (P2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2) and two setpoints
must be set (P2b3, 2
2
3, 2
3
3, 2
4
3, 2
5
3 & 2
1
4, 2
2
4, 2
3
4, 2
4
4,
2
5
4). Setpoints are entered in display units or % of span as
referenced to empty level.
2 = Rate of Change
Alarm is based on the rate of change of level in the vessel,
and the type of rate of change alarm (2
1
2, 2
2
2, 2
3
2, 2
4
2,
2
5
2), and two setpoints must be set (2
1
3, 2
2
3, 2
3
3, 2
4
3, 2
5
3
& 2
1
4, 2
2
4, 2
3
4, 2
4
4, 2
5
4). Setpoints are entered in Display
Units per minute or % of span per minute and a negative
value should be entered for a Rate Alarm on a de-creasing
level, and a positive value for an increasing level.
3 = Temperature
Alarm is based on the temperature, and the type of
temperature alarm (P2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2) and two
setpoints must be set (P2
1
3, 2
2
3, 2
3
3, 2
4
3, 2
5
3 & P2
1
4,
2
2
4, 2
3
4, 2
4
4, 2
5
4). The temperature used depends on the
temperature source selected (P852). Setpoints are entered in
o
C.
4 = Loss of Echo
Alarm is raised if the
Failsafe
Timer
(
P809
) expires. No
setpoints are required.
5 = Loss of Clock
Alarm is raised if the expires. No setpoints are required.
13 = Loss of Comms
Alarm is raised if there is a comms failure. No setpoints are
required.
Available in firmware version 7.5.0 and greater
Important Notice
The Loss of Echo, Loss of Clock and Loss of Comms will also be shown on
the display as “Lost Echo”, Lost Clock” and Lost Comm” respectively.
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