3B SCIENTIFIC ® PHYSICS
Magnetic field sensor FW, ±2000 mT 1021766
Instruction manual
09/19 SD
1. Safety instructions
This magnetic field sensor is not suitable for use
in safety-critical applications.
Do not use the sensor for anything other
than educational purposes.
Do not bend the probe or subject it to any
other mechanical stress.
Do not exceed the maximum temperature
for the sensor, 175°C.
Do not let the sensor element come into any
contact with water.
2. Description
Sensor box with attached sensor probe, 135
mm long, 6 mm width and max. 1.2 mm thick,
for measuring magnetic flux density B of an
externally applied magnetic field in a tangential
plane. Primary uses include measurement of
Hall effect in semiconductors (1009934) and
metals (1019388).
The millimetre scale on the probe has a zero
point centred in the middle of the active surface
of the Hall sensor. The distance between the
active surface and the end of the probe is 0.6
mm. This enables precise measurements of the
magnetic field produced by current-carrying
conductors (e.g. with the Biot-Savart set
1018478)
The sensor has an extended temperature range
for the Hall sensor ranging from -20°C to +175°C
for flux density measurements on heated
germanium semiconductor crystals (probes).
Two buttons (+, -) allow the measuring range to
be selected. Zero calibration is carried out using
the calibrate (Tare) button. Visual indication of
the currently activated measuring range is
provided by means of an LED under the
imprinted range. When the "Tare" button is
pressed, the LED for the respective range will
flash.
For a defined orientation in the magnetic field
which is to be measured, the device can be
attached to a stand.
The sensor box includes automatic detection of
the CMA interfaces distributed by 3B.
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