ElektroPhysik 19
3.1.5 High-accuracy calibration
To achieve high-accuracy readings, it is advisable
to log calibration values (both zero values and
calibration foil values) several times in succession.
In this way the gauge will automatically establish a
mean calibration value. For more details see
sections 3.2.2 - 3.2.4 on calibration.
This method is an obvious advantage when
calibrating on uneven, e.g. shot-blasted surfaces.
3.1.6 Cleaning the measuring point
Before calibration, the measuring point and the pro-
be tip must be free from grease, oil, scraps of metal,
etc. .The slightest impurity will affect measurement
and distort readings.
3.1.7 Acoustic signal
Whether the probe is being used for calibration or
for measurement, it must be held in place and not
lifted until the bleep sounds.
High-accuracy calibration and accoustic signal
