Probes; Changing Probes; Probe Handling - Magnet-physik FH 55 Operating Instructions Manual

Gauss- / Teslameter

6 Probes

To avoid damage and for best results during use, the probes have a number of handling and
accuracy requirements that must be observed.

6.1 Changing Probes

To connect the probe, take hold of the probe connector and move it straight into socket. Secure
the connector with the two screws. To remove the probe, unlock the screws and pull the
connector straight off. Do not pull at the cable.
The instrument does not work without probe. If the instrument is switched on without a probe,
you will read "Probe missing". The instrument is automatically initialized, if a probe is
connected.

6.2 Probe handling

Danger!
The Hall probe must never be brought into contact with an electrical voltage
conductor. The paint on the probe surface is not an electrical insulation.
Disregard of this warning can cause danger to life of the user. Additionally,
the device and the probe can be damaged.
Caution!
Care must be exercised when handling the probe. The tip of the probe is very
fragile. Mechanical stress can alter the calibration. Any excess force may
break the probe. Broken sensors cannot be repaired.
Although every attempt has been made to make the probes as sturdy as possible, the probes are
still fragile. This is especially true for the exposed ceramic tip of thin probes. Care should be
taken during measurements that no pressure is placed on the ceramic tip of the probe. The probe
should only be held in place by securing at the handle. The probe stem should never have force
applied. Any strain on the ceramic substrate may alter the probe calibration, and excessive force
may destroy the Hall sensor.
Avoid repeated flexing of the sensor mounted at the end of a flexible stem. Force should never
be applied to the tip of the probe. On all probes, do not pinch or allow cables to be struck by
any heavy or sharp objects. Although damaged or severed cables should be returned for repair,
please understand that probes are not always repairable.
When probes are installed on the gaussmeter but not in use, the protective tubes provided with
some probes should be placed over the probe handle and stem in order to protect the tip. When
the gaussmeter is not in use, the probes should be stored separately in some type of rigid
container. The foam container in that many probes are shipped in may be retained for probe
storage.
BA - Nr.: 2000550EBA01
TH
S , 24 , 2019
EPTEMBER
FH 55
Page 23