15
4.01
Potential faults if pressure is not within a few psi of measured tire pressure:
Tire chuck
Leaks in fittings or hose
Loose or broken pressure sensor cable
Solenoid stuck open
Pressure sensor
Digital pressure board:
4.02
Potential faults if pressure is within a few psi of measure tire pressure:
Digital pressure board requires calibration
Faults listed under 4.01
5.00
Calibration :
Skip this step if tire accuracy is within acceptable limits.
Tools:
Michelin MN-12279 Tire Gauge recommended (displays pressure to 0.1 PSI
resolution).
Notes:
Make sure the compressor is off before entering the calibration mode and remains off
during the entire calibration process.
5.01
Press and hold the “PROGRAM” button on the digital pressure circuit board. After
approximately 2 seconds, the buzzer will beep and "CAL" will be displayed. Release
the button. The exhaust solenoid will be enabled for 2 seconds after which all of the
display segments will be turned on to allow for visual inspection of the display. After an
additional 3 seconds, the exhaust solenoid will be disabled and the display will show
the pressure in 0.1 psi increments (example "P 0.3").
Note -during the time that all display segments are enabled, the pressure
board is adjusting the pressure sensor input for 0 psi measurements. The
pressure displayed initially will include any previously calculated offset.
REV 3-23-22
