AXM/AXL

Calibrating your truck scale


How to obtain an accurate calibration reading


- Keep the engine running to provide air to the suspension system.
- Park the vehicle on a level ground.
- Release vehicle brakes. If trailer is attached, release trailer brakes.
- Exhaust the air from the suspension and re-inflate the air bag suspension to the correct ride height.
- Your will know you have the correct calibration when the weight shown on the AXM/AXL unit is the same as the weighbridge value.

Consider a 0.2% of margin of error between values.




Calibration Instructions


1. Set Tare Weigh - LO VALUE VEHICLE EMPTY


With the AXM201/202 display on:
Press [ P ] button for 2 seconds to enter Program Mode (dECPT will appear on the display).
Press [ P ] button twice to display LO, press once more to adjust the value.
Adjust display value with [ - ] and [ + ] buttons, until reading is the same as the weighbridge docket (known as Tare Weight)
Press [ ↲ ] button to store
Press [ ⌽ ] button to exit program mode.


2. Set Max Weigh - HI VALUE VEHICLE LOADED


With the AXM201/202 display on:
Press [ P ] button for 2 seconds to enter Program Mode (dECPT will appear on the display).
Press [ P ] button 4 times to display HI, press once more to adjust the value.
Adjust display value with [ - ] and [ + ] buttons, until reading is the same as the weighbridge docket (known as Tare Weight)
Press [ ↲ ] button to store
Press [ ⌽ ] button to exit program mode.

1. Set Tare Weigh - LO VALUE VEHICLE EMPTY


With the AXM202 display on:
Press [ P ] button for 2 seconds to enter Program Mode (CHAn will appear on the display).
Press [ P ] button once to display channel 1, using the [ - ] and [ + ] buttons, select channel 1 for front axle or channel 2 for rear axle.
Press [ P ] button 3 times to display LO, press once more to adjust the value
Adjust display value with [ - ] and [ + ] buttons, until reading is the same as the weighbridge docket (known as Tare Weight)
Press [ ↲ ] button to store
Press [ ⌽ ] button to exit program mode.


2. Set Max Weigh - HI VALUE VEHICLE LOADED


With the AXM201/202 display on:
Press [ P ] button for 2 seconds to enter Program Mode (CHAn will appear on the display).
Press [ P ] button once to display channel 1, using the [ - ] and [ + ] buttons, select channel 1 for front axle or channel 2 for rear axle.
Press [ P ] button 5 times to display HI, press once more to adjust the value.
Adjust display value with [ - ] and [ + ] buttons, until reading is the same as the weighbridge docket (known as Max Weight)
Press [ ↲ ] button to store
Press [ ⌽ ] button to exit program mode.


Video Instructions

*For single and dual channel configurations


Troubleshooting

What does 'Er1' mean?

Possible Cause: Invalid calibration. Caused by “LO” and “HI” set at the same time either empty or full.
Solution: Recalibrate “LO” value at unladen/empty weight and “HI” value at laden/full weight.
What does 'Er2' mean?

Possible Causes:The calibrated weight of the “LO” value is too close to the calibrated weight of the “HI” value.
Solution: Recalibrate the “LO” value at minimum/empty weight and “HI” at maximum weight.
My truck scales are displaying inaccurate readings

Possible Cause: The gauge wasn't calibrated or was set with incorrect weight on the weighbridge.
Solution: Keep the engine running to provide air to the suspension system.
Park the trailer on the level ground.
Release trailer brakes. Exhaust the air from the suspension and inflate to correct ride height.

Possible Cause: The gauge is not connected to the air-bag suspension.
Solution: Check the air-line connection.
My truck scale display is always on

Possible Cause: Display Auto OFF timer mode not set.
Solution: Set display auto OFF timer.
My truck scale display turns OFF too quickly

Possible Causes:The time value set for the display auto OFF timer mode is too low.
Solution: Adjust or increase display timer mode.
My truck scale display is not turning on

Possible Cause: Check if unit is connected to power.
Solution: Check the power circuit. If the voltage is below 8 vDC the unit will not function correctly. Test the power source with a voltmeter. The gauge must be connected to a switched source to allow occasional software reboot.

Possible Cause: Check if the polarity is correct
Solution: The red/brown wire must be connected to positive, and the black to negative.
My truck scales are displaying unstable readings

Possible Cause: The height control valve (HCV) is malfunctioning or broken.
Solution: The HCV is not functioning correctly, the air pressure applied to the suspension system could be inconsistent.

Possible Cause: The height control valve (HCV) cannot supply air to the suspension system.
Solution: Set unit into Pressure Gauge Mode to display actual air pressure). Then, check and replace ride height control valve.

Need further assistance?

Contact us on 1800 818 884 or use the form at the bottom of this page to email us.