
Preparing for measuring
Notes on correction value determination
36
5.1
Notes on correction value determination
Wrong measuring
results
In contrast to the actual value (on the road), tyre deformations
can cause wrong rolling road measurements.
Due to differing vehicle bodies, tyre circumferences and
types, an independent correction value must be determined
for rolling road and vehicle type.
This significantly offsets any wrong measuring results.
A correction value within ±9.9% can be entered for each
measurement procedure.
The L measurement and "W" measurement are evaluated
with the correction value.
While checking the tachograph system, you must ensure that
•
the vehicle is roadworthy and unloaded.
•
the actual tyre size matches the size given in the vehicle
registration certificate.
•
the tyre pressure matches the vehicle manufacturer's
recommendations.
In the case of a rolling road inspection, the determined
correction value must be set.
Always adhere to your country's valid legal
regulations!
◄
Important
The CTC II must be connected to the Roller Interface
Module.
◄
Condition