Problems with DistoX 2 always is "magnetic anomalies" (Red Background)
Chema Gomez
Marco Corvi
My DistoX2 always shows magnetic disturbances (red background), even though the calibration seems correct.It causes significant deviations and prevents loop closures.How can I know if the board is faulty or if it's a hardware issue?
The firmware is version 2.6, but I can't find any information about that version.
Additionally, I have many problems with the Bluetooth connection when trying to access device information or send calibration data, although I can download survey data without issues.
Thanks--
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Sébastien Trinquier
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chema gomez
The version is:
HW 1.2
FW 2.6
1399
Even if the calibration is off, I still find it very strange that four measurements to the same point, rotating the Disto, give very different results: 145º, 154º, 173º, 162º — that's nearly a 30º difference! Although I did this indoors, it behaves almost the same in the cave.
Would replacing the compass board be a possible hardware fix? or might there be a cheaper solution? I bought the Disto recently second-hand, but it's not old, I think.
Thanks
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Marco Corvi
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Marco Corvi
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Brett Wiltshire
Hi Chema, I think the problem you mention "four measurements to
the same point, rotating the Disto, give very different results"
can be caused if the distox has been previously put close to a
strong magnet and the distox components have become magnetized. I
had this problem and thought the compass chip had failed and
replaced the distox board with a new distox conversion kit but it
did not fix the problem. In the end I got it working again by
buying a demagnetizer/ degausser. I used this one:
The hole in the demagnetizing device I mention above is slightly
too small to easily fit the distoX through so another version may
work better but the above version worked for me. The technique is
to move the object to be demagnetised rapidly through the rapidly
alternating magnetic field that the device creates. By poking
either end of the distox into the hole, it worked for me. Repeat
attempts demagnetizing the distox until the difference in compass
readings between screen up and screen down shots is the smallest
and then do the full calibration from there.
I think this happened to me because I had a neodymium magnet in
my tool bag to pick up dropped bolts etc and I accidentally put my
cave pack on top of it one day in the car.
Brett
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