4
Cap Screw
Location
Calibration Screw
Not to be used for general set point
adjustment
The Calibration Screw is used for:
A) Initial factory calibration and after
Micro Switch replacement.
B) To reach pressure settings at up-
per or lower extremes.
Call factory for detailed instructions.
4
Setting Trip Pressure
Note: pressure gauge and pressure source are needed to set and verify settings
4.1
Cut off Zip Tie
(or Car Seal)
4.1
Loosen Cap Screw (3/16” hex hey) Located on upper part of Adjustment Collar
Loosen Set Screw to Allow turning of Pressure Adjusting Collar
4.2
Pressure Setting
Turn Collar Clockwise to Increase Pressure Setting
Turn Collar Counter Clockwise to Decrease Pressure Setting
4.3
Tighten Cap Screw
Tighten Cap Screw to lock Pressure Adjusting Collar in position.
Adjustment Collar
5
Notes Regarding Calibration
5.1
Calibration is not required after re-setting & verifying trip pressure.
5.2
Calibration (micro switch gap setting) is required when the Micro Switch has been
replaced or if disassembly and re-assembly has occurred.
Refer to Repair Manual for calibration instructions at www.robinsoncontrols.com
Figure 5
ZIMCO INSTRUMENTATION INC.
11141 15 Street NE, Calgary, AB, T3K 0Z5, Canada
Phone:
403-253-8320
Email:
Website:
www.zimco.ca
