Parr Instrument 4857 - Manual (Page 26)

4857 Reactor Controllers
- 26 -
M ODULE 3: T ACHOMETER
Stirring Speed Adjustment
When the local/remote switch on the front panel of the 4875 Power Controller is set to remote,
the desired stirring speed will be set by Setpoint 1 on Module 3. The stirring speed should be
shown in the upper display, with the setpoint just underneath. The stirring speed may be
adjusted manually when the switch is in the "local" position.
Installation Note:
During initial installation, the mode on Module 3 will need to be changed.
Right click on the controller image and select “Properties >> Module 3.”
Expand (+) Module3 – Setpoint1 Control, and change mode from Park to PI.
1. Right click on controller image.
2. Select properties and select programmer and set-points.
3. Expand (+) setpoints menu.
4. Enter Module 3 - 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.