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6. Performing a Pressure Switch Test
Figure 10
To perform a switch test, follow these steps:
1. Change the setup to Setup 4 (default switch test).
Setup 4: The upper display is set to [P1] ST, all other displays
are off.
Important NOTE: The pressure Switch Test can be performed
with the following functions[P1] ST, or EXT ST.
2. Connect the calibrator to the switch using the pressure switch
terminals. The polarity of the terminals does not matter. Then
connect the pump to the calibrator and the pressure switch.
3. Make sure the vent on the pump is open. Zero the calibrator if
necessary. Close the vent after zeroing the calibrator.
4. The top of the display will read “CLOSE”.
15
Pressure switch
under test