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Raychem-AR-H58692-ACS30UIT2Programming-EN-1805
Assigning Temperature Alarms
Once RTDs have been assigned to the circuit high and low temperature alarms may be set.
Fig. 3.41 Setup|Alarms window (Pipe Freeze PASC Control)
Note:
Temperature alarms can only be associated to line monitoring RTDs.
High Line Temp Ala
rm:
If any RTDs assigned to a circuit measures a temperature above this
threshold, the ACS-UIT2 generates an alarm. The limit can be set for any temperature value you
desire for your application within the range allowed.
Range:
100°F (38°C) to 190°F (88ºC)
Default:
190°F (88ºC)
Low Line Temp
Alarm:
If any RTDs assigned to a circuit measures a temperature below this
threshold, the ACS-UIT2 generates an alarm.
Range:
33ºF (1ºC) to maintain setpoint
Default:
33ºF (1ºC)
Temp
erature Alar
m Filter:
This minimizes nuisance alarms by forcing the ACS-UIT2 to verify that
the alarm condition continually exists over the selected period of time before alarming.
Range:
0–999 minutes
Default:
15 minutes
Note:
Setting the Alarm Filter to 0 minutes is mainly for testing and demonstration purposes.
Choosing this option for normal use may cause nuisance alarming since this option may not allow
the ACS-UIT2 time to verify that the alarm conditions exist.
High Line Temp Cut-Out:
IF ANY RTDS ASSIGNED TO A CIRCUIT MEASURES A TEMPERATURE
ABOVE THIS THRESHOLD, THE ACS-UIT2 GENERATES AN ALARM AND THE RELAY OUTPUT IS
TURNED OFF. IF THE HIGH LINE TEMPERATURE DROPS BELOW THIS THRESHOLD MINUS THE
DEADBAND, THE OUTPUT IS TURNED ON AND NORMAL DUTY CYCLE CONTROL IS RESUMED.
Range:
110°F (43°C)–200ºF (93ºC)
Default:
200°F (93ºC)
Hig
h Line Te
mp Cut-Out Enable/Disable:
Enables or disables the high line temp cut-out
capability. When enabled, the ACS-UIT2 alarms and the output relay turns OFF if any RTDs exceeds
the cut-out value for the alarm filter time period. If the high line temp cut-out is disabled, the relay
output will continue to function normally without the high temperature cut-out feature.
Options:
Enable or Disable
