ETS-Lindgren HI-3637 VLF Magnetic Field Meter - Manual (Page 30)

Page — 22 HI n 3637 Manual
NOTE:
The meter will not operate when the battery
charger is connected to the charger jack.
Description
To begin making field measurements, connect the probe
to the meter. Turn the range switch clockwise,
increasing the instrument's sensitivity until an up-scale
meter reading is obtained. Readings will be most
accurate when the selected range yields maximum needle
deflection without lighting the Over Range LED. When an
over range indication occurs, select the next larger range.
Since the meter movement is protected against deflection
past the top of the meter scale, the "Over Range" LED
must be used to determine an over range condition.
The probe utilizes three mutually-perpendicular concentric
coils it is not necessary to rotate the sensor to obtain a
maximum indication on the meter.