Vektek Guardian 2.0 User Manual page 15

Vektek Guardian™ 2.0 User's Guide
Setting the pressure switch
The purpose of the Pressure Switch Setter/Checker is to assist the user of Vektek Mechanical
Pressure Switches in the setting of the pressure switch point and operation of the switch. It allows
instant feedback of the pressure switches NO contacts and if it opens or closes at a specific set point.
1. Make sure you have good batteries in the Pressure Switch Setter/Checker. (Depending on
the model it will be 2-AAA or 1-9V batteries.)
2. Connect the attached cable to the Vektek Mechanical Pressure switch connector.
3. Apply the amount of hydraulic pressure you want the pressure switch to activate at. We
recommend 250-400 psi below your fixture/pump operational pressure. The exact
pressure will need to be determined by the fixture designer. You want the pressure switch
to open its contacts before enough pressure is lost to damage a part, let it shift or come out.
If the pressure is set to close to the full operational pressure of the fixture, then there could
be false alarms caused by normal pressure fluctuations in the system.
4. Turn the adjustment ring of the pressure switch until the LED light is NOT illuminated.
(clockwise)
5. Then turn the pressure setting ring back up (counterclockwise) until the LED light IS
illuminating.
6. Now turn the adjustment ring of the pressure switch until the LED light is just NOT
illuminated. (clockwise)
7. You now have set the pressure switch at a point so that when the pressure drops below the
critical set point the switch opens.
G e n e r a l P r o d u c t R e v . A I A W E C N - 5 5 8 1
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Figure 19: THE PRESSURE SETTER CHECKER
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