Adjusting The Centering; Initial Stroke Adjustment - HBM WI/5mm-T Montageanleitung

WI

5.1 Adjusting the centering

Probe version (WI/2mm−L, WI/5mm−L, WI/10mm−L)
Spring pressure on the stop puts the probe in the rest position. The initial
stroke as far as the start of the measuring range is around 0.5 mm.
At this point the transducer has its maximum negative output signal.
The initial stroke is followed by the nominal measuring range, in the middle of
which is the electrical zero point.
Start of measuring
range
Initial stroke, measuring range, free stroke
Fig. 5.2:
From the end of the measuring range (max. positive output signal) to the end
stop is a free stroke. The free stroke depends on the measuring range.
Alternatively the measuring range can be found as in the case of a free
plunger:
With a neutral amplifier setting (no zero point adjustment, no tare) adjust the
probe pin to a zero display. Half the measurement displacement lies on either
side of this position.

5.2 Initial stroke adjustment

The stop for the probe pin (rest position) determines the initial stroke, that is,
the distance to the start of the measuring range. This initial stroke can be
adjusted if it is preferred that the rest position and the start of the measuring
range should be the same. The initial stroke also enables measurements to
be taken over the whole of the nominal measuring range.
Shortening the initial stroke can be helpful for workpiece checking if the probe
has already been moved up very close to the expected value.
A1028 3.1 de/en/fr
Start of measuring range
29
Free stroke
Displacement
Initial stroke
HBM