Quality of the zero procedure verification, Quality of the zero procedure verification 60 – MTS WIFT Mini Transducer Interface User Manual
Page 60
SWIFT
®
Mini TI
60
Quality of the Zero Procedure Verification
Installation
Quality of the Zero Procedure Verification
Perform the following consistency checks for each SWIFT sensor while the
vehicle (or corner) is elevated.
1. Does Fz measure the approximate weight of the tire/rim assembly?
2. Is Fx small (less than 0.2% of the rated load)?
3. What is the variance in Fz (modulation) when the tire is slowly rotated? The
typical value should be <500 N.
4. Perform a shunt calibration on each transducer.
Press the Shunt button on the front of the TI box (see the next figure), or use
the TI2SHUNT program.
The shunt indicators will toggle until the process completes. If the red failed
indicator lights, the shunt calibration has failed.
The shunt calibration will fail if the measured shunt values are >2% (the
shunt tolerance) of the reference values that were set at the factory.
Typically, the shunt values will vary a maximum of 0.020-0.030 V from the
reference values.
Shunt Button
and Indicators