6. Performing a Pressure Switch Test

Pressure switch under 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”.

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Omega M-4292/1006, PCL340 manual Performing a Pressure Switch Test

PCL340, M-4292/1006 specifications

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