Azimuth And Inclination Measurement; Factors Influencing Azimuth Accuracy - Vectronix USMC VECTOR 21 Operating & Operator Maintenance Instructions

Azimuth and inclination measurement

The VECTOR has a digital
compass that works similarly to
a magnetic compass. Metal
objects and magnetic fields can
cause errors in directional
readings. Nonmagnetic metals
and alloys do not affect the
compass readings.
Countermeasures:
i
• Use non-magnetic batteries
only!
• Calibrate the compass (see
pages 36–40) after every
battery change.
• Observe the minimum safe
distances shown opposite
when making azimuth
measurements or calibrating
the compass:
VECTOR ™- USMC VECTOR 21-V.0.3
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Factors influencing azimuth accuracy

18
Azimuth and inclination measurement
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