Parr Instrument 4857 - Manual (Page 25)

4857 Reactor Controllers
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M ODULE 2: P RESSURE D ISPLAY AND H IGH P RESSURE A LARM
Alarm Adjustment
The high pressure alarm will trip the High Limit Alarm if the pressure exceeds the setpoint
specified on Module 2. If the High Limit Alarm is tripped, the power to the heater will be
interrupted, and the operator will need to manually reset the switch. The pressure will be shown
in the upper display, with the high pressure alarm underneath.
1. Right click on controller image.
2. Select properties and select programmer and set-points.
3. Expand (+) setpoints menu.
4. Enter Module 2 -Setpoint 1 value for the required module (click out of value box once
setting entered to ensure value is accepted)
5. Apply setting and click OK
6. New setpoint is now written to the controller and should be visible on controller image.