JNE TECH-D, Инструкция по эксплуатации

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TECH-D manual EN 2010-05-18.doc
4.5 Comparing heights
Except from measuring length and symmetry
with TECH-D you can also compare heights by
help of the sensitive level that is mounted on the
measuring head.
When comparing heights there are several
important points to bear in mind.
•
As far as possible the vehicle should be
positioned on the same lateral level, or
this can have an adverse effect on the
accuracy of the height measurements.
The extent to which the measurement
accuracy is affected can be seen in the
table in section 4.6 POSITIONING OF
VEHICLE.
•
That height comparison always is done at
the same time as length measurement
i.e. when measurement is done parallel
with the vehicle’s centre line.
•
The water level on the TECH-D arm is
fixed which often means that it is not on
the same level as the vehicle to check.
This means that the measuring value
stated for the height rod in TECH-D
datasheet only is intended for the settings
of the measuring arm when length
measurements are done.
To be able to compare heights, from left to the
right side of the chassis, you shall now change
the height rod and adjust it until the bubble is in
the level centre. (This comparison is only done
on line 1 and 4.)
Move over the measuring arm and mount on the
opposite side’s measuring point. Pull out to the
corresponding check point as you wish to
compare and read off the level. If the bubble is
not in the centre there might be a divergence.
Read off the height rod scale and adjust up or
down to be able to read the difference in height.