Vectronix USMC VECTOR 21 Operating & Operator Maintenance Instructions page 48

Troubleshooting (continued)
Problem
Inaccurate azimuth measure-
ment values.
The expected display does not
appear after clicking a key
several times.
VECTOR ™- USMC VECTOR 21-V.0.3
Possible cause
Incorrect declination value has
been stored.
Disruptive magnetic fields at the
measuring position.
Calibration in an area with
magnetic interference.
Altered magnetic conditions
within the instrument after a
battery change.
Key was pressed too slowly, or
with insufficient force.
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Solution
Store the correct declination
value (see page 34, 35).
See the factors affecting
measurement accuracy on
page 18.
Recalibrate the compass (see
pages 36– 40).
Recalibrate the compass.
Press and release the key in
rapid succession. Always
press the key down until there
is an audible click.
Troubleshooting