Holaday Industries HI-3624, User Manual

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Page 4 HI-3624 / HI-3624A Manual
200 mG;
2 G;
20 G.
Accuracy:
Within ± 5 % at calibration frequencies of 50, 100,
500 and 1000 Hz.
Power:
Two (2) nine volt alkaline batteries
(NEDA 1604A, Duracell MN1604 or equal).
Battery Life:
Up to 120 Hours Intermittent use.
Linearity:
2% on HI-3624A (5% on HI-3624)
Instrument accuracy is derived from a field calibration using a
one meter diameter pair of Helmholtz coils for establishing an
accurately known magnetic field flux density. A precisely
controlled and measured sinusoidal current is driven through the
Helmholtz coils and, based on the dimensions of the coils, the
magnetic field flux density between the coils in milligauss (mG)
is calculated.
While the HI-3624 indicates magnetic flux density (B) in units
of milligauss, the flux density in microtesla or magnetic field
strength (H) in milliamperes per meter may be obtained via the
following relations:
1 microTesla = 10 mG
1 mG = 80 milliamperes per meter (mA/m)