Psi sw test close, Menu, Light – Martel Electronics MC1210 User Manual
Page 29: 2 performing a pressure switch test
7.2 Performing a pressure switch test:
Figure 24. Pressure Switch Test
1. Use the menu to select SW TEST on the upper display.
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 vent after
zeroing the calibrator.
4. The top of the display will read “CLOSE”.
5. Apply pressure with the pump slowly until the switch opens.
Important NOTE: In the switch test mode the display update rate is increased to help
capture changing pressure inputs. Even with this enhanced sample rate pressurizing device
under test should be done slowly to ensure accurate readings.
6. Once the switch is open, “OPEN” will be displayed, bleed the pump slowly until the
pressure switch closes.
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F1
F2
F3
CE
ENTER
8
9
4
1
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5
2
0
6
3
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7
HOME
HAND PUMP
PRESSURE
MODULE
Pressure
Switch
psi
SW TEST CLOSE
MENU
0.000
LIGHT
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psi