MKS 651C - How To Change Valve Selection and Calibration

How To Chan
g
e Valve Selection and Calibration Cha
p
ter Six: Remote O
p
eration
64
How To Change Valve Selection and Calibration
The 651 controller is initially configured as if it is controlling a Type 653 valve. You must
reconfigure the 651 controller to work with a Type 253 valve. Follow the steps below to select
another valve.
Caution
This procedure involves cycling the valve from the open to the close
position. Be certain that the system can withstand valve cycling
before
proceeding. This test can be performed prior to installing the
651 controller and the valve in the system.
1. Be sure that the valve is connected to the 651 unit.
2. Issue the following command to calibrate the controller and valve:
J
value
ENTER
where
value
= 1 for standard 253 valve
2 for a fast 253 valve
3 for a 653 valve
The valve will move (from fully open to fully closed) and then stop at the completion of the
calibration procedure.
Note
Be sure to select the correct valve, otherwise the 651 pressure controller
will not function properly.
3. Learn the new valve by following the procedures described in
How To Activate the Learn
Function
, page 53.