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Users Manual
22
6. Apply pressure with the pump slowly until the switch opens.
Note
In the switch test mode, the display-update rate is increased to help capture
changes to pressure inputs. Even with this enhanced sample rate, the UUT
should be charged slowly with pressure to ensure accurate readings.
7. After the switch is open, "OPEN" will be shown. Bleed the pump slowly until the
pressure switch closes. See Figure 22.
hbb022.eps
Figure 22. Switch Test Screen (Open)
8. The top display now shows "SW OPENED AT" and gives you the pressure at which
the switch opened. See Figure 23.
hbb023.eps
Figure 23. Opened Switch Reading
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