Gauss-/Teslameter
FH 52
BA - Nr.: 1620010102
Page 27
In addition a surface field probe, shaped like a little stamp, is available. It is used to measure the
field strength on the surface of magnetized foils.
3.7.1
Probe Handling
To avoid damage and for best measuring results, the following handling requirements need to
be observed.
For connecting a probe, move the plug straight into the connector. Pull the plug straight out for
removing the probe.
The FH 52 does not work without a probe. “
The probe is missing!
” is displayed if the device is
switched on without a probe connected. When a probe is attached, the probe data are
automatically read into the instrument. It is not necessary to switch off the FH 52 for changing a
probe.
Danger!
The probe must never be brought into contact with not sufficiently isolated
components that carry an electrical voltage. The sleeve on the probe is not
an electrical insulation with defined properties. Disregard of this warning
can cause danger to life of the user. Additionally the device, the probe and
an eventually connected computer can be damaged.
Warning!
Care must be exercised when handling the probe. The sensor of the probe is
very fragile. Stressing the Hall sensor can alter its calibration. The probe
must not be clamped or pressed at its tip. Any excess force can easily break
the sensor. Broken sensors are not repairable.
Although every attempt has been made to make the probes as sturdy as possible, they are still
fragile. The probe should only be held in place by securing it at the handle. The probe stem
should never have force applied. Mechanical stress in the Hall sensor can cause a permanent
change of the measuring sensitivity or the offset. Excessive force may destroy the Hall sensor.
The axial sensor is exposed on the end of the probe. A collision with a hard surface can damage
the sensor or wear away its protective coating.
The transverse sensor is more protected, but is nevertheless susceptible to bending stress and
erosion of the protective coating. Do not apply any force to the front part of the probe (approx.
10 mm from the tip).
For all probes, do not pinch or allow cables to be struck by any heavy or sharp objects.
Damaged probes are not repairable in most cases. When the instrument is not in use, the probes
should be stored separately in the supplied protective hard case.
