Lakeshore 400 Series Hall Probes Operating instructions

Type
Operating instructions
Instructions, Reference Magnet
Lake Shore Cryotronics, 575 McCorkle Blvd. Westerville, OH 43082 www.lakeshore.com
Phone (614) 891-2243 Fax (614) 891-1362 [email protected] [email protected]
1. To ensure the accuracy and long term reliability of the reference magnet, the following
precautions need to be taken:
a. Keep all reference magnets away from other magnets or magnetic fields.
b. Do not drop or cause shock to any reference magnet.
c. Do not allow particles of magnetic material such as metal shavings to become lodged
in the measurement gap.
d. Do not expose any reference magnet to temperature below 0 °C (32 °F) or above 40 °C
(104 °F).
2. Hall elements are sensitive to both magnetic field intensity and direction.
3. When using transverse magnet, it is important that the active area of the Hall probe be
positioned in the center of the measurement gap and then oriented for the maximum
indication on the gaussmeter.
4. When using axial reference magnets, the correct value will be measured only when the
probe is located in the center and inserted to the proper depth highest reading; then rotated
for the maximum reading.
5. Recalibration of the reference magnet should be performed at least once a year. It is
important to take into consideration the temperature coefficient of the reference magnet and
the Hall probe being used. Consult your certificates of calibration for the ambient
temperature during calibration.
Form Number F050-00-00_A ©2014 Lake Shore Cryotronics, Inc. 2 May 2014
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Lakeshore 400 Series Hall Probes Operating instructions

Type
Operating instructions

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