PULSAR MEASUREMENT
121
Alarms
P1 & P2: P210, 220, 230, 240, 250, 260 = 1 (Alarm)
The
second parameter
for each relay determines the
function
of the alarm.
P*211, 221, 231, 241, 251, 261
–
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 (P*2
1
2, 2
2
2, 2
3
2, 2
3
2, 2
4
2, 2
5
2, 2
6
2) and two setpoints
must be set (P*2
2
3, 2
2
3, 2
3
3 & 2
1
4, 2
2
4, 2
3
4, 2
4
4, 2
5
4, 2
6
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 (P*2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2, 2
6
2),
and two setpoints must be set (P*2
1
3 & 2
2
3, 2
1
4 & 2
2
4, 2
3
4 &
2
3
4, 2
4
3 & 2
4
4, 2
5
3 & 2
5
4, 2
6
3 & 2
6
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 (P*2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2, 2
6
2) and two setpoints must be
set (P*2
1
3, 2
2
3, 2
3
3, 2
4
3, 2
5
3, 2
6
3 & P2
1
4, 2
2
4, 2
3
4, 2
4
4, 2
5
4,
2
6
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
required.
5 = Loss of Clock
Alarm is raised if the expires. No setpoints required.
6 = Device Fail
Alarm is raised if a device, connected to the relay assigned in
alarm ID (P*2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2, 2
6
2), fails. E.g. pump is put
out of service. No setpoints are required.
7 = Device Alarm
Alarm is raised if a fail signal is detected on the digital input as
assigned in alarm ID (P*2
1
2, 2
2
2, 2
3
2, 2
4
2, 2
5
2, 2
6
2) No
setpoints are required.
•
To set figures in % press the
hot key to show and enter % figure
relative to empty level.
Important Notice
The Loss of Echo, and Loss of Clock will also be shown on the display as “Lost
Echo”, and “Lost Clock” respectively.
