MANUAL – REFLEX EZ-TRAC™ | 41
8.2.4.2 Magnetic Reference
REFLEX EZ-TRAC™ is a magnetic instrument. Any magnetic
interference will disturb the magnetic sensors, which will result in
incorrect survey data. To be able to identify survey data that might
have been destroyed by magnetic interference, a Magnetic Reference
should be registered.
The Magnetic Reference is registered via the SETTINGS menu. The
current Magnetic Reference setting applies to all new surveys, and is
saved in the data file of the surveys. A new Magnetic Reference
setting has no effect on stored surveys.
If a Magnetic Reference has been registered, the
REFLEX™ EZ-COM
unit compares the measured magnetic field strength and magnetic dip
of every survey station with the reference values. The accepted range
is ±1,000 nT from the magnetic field strength reference value, and
±0.5 deg from the magnetic dip reference value.
For survey stations that are out of the magnetic reference range, the
Azimuth and Magnetic Toolface values (which both depend on input
from the magnetic sensors) will have blinking values in the survey
results list.
If ‘No Reference’ is selected, magnetic interference verification will
not be performed.
The Magnetic Reference of a stored survey can be viewed and edited
in
REFLEX™ SProcess.
Figure 33 Magnetic Reference menu
UP/DOWN Use the UP/DOWN keys to navigate between the menu options.
OK Use the OK key to select the active option.
LEFT Use the LEFT key to return to the SETTINGS menu.
Figure 34 View current magnetic reference
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