BARTINGTON INSTRUMENTS
Page 7 of 9
OM2298/4
6.2. Electromagnetic Compatibility
Note:
The Mag648 and Mag649™ sensors are not shielded for immunity from, or emission
of, electromagnetic fields.
7. Troubleshooting
The sensor is unlikely to suffer any defects in normal use: no internal components are
serviceable. The most likely causes of failure, and their solutions, are detailed in the following
table.
In the event of any apparent malfunction beyond those described in the table below, please email
, or telephone the Bartington Instruments service team on +44 (0)1993
706565.
Problem
Cause
Solution
There are
no analogue
outputs
present in X, Y
or Z
Sensor head not
connected
Ensure that the sensor head and electronics are
connected as per
Probe and Electronics wiring
.
Power supply
not connected or
not sufficient to
power the sensor
Check that the power supply meets the requirement
provided in DS2298 and that the connection is as per
Connection to Power Supply/Acquisition Unit
.
Broken coil
If only one or two axes is (are) not responding, one of the
fluxgate coil could be damaged. Please return the unit to
us for assessment.
Component
damage
If only one or two axes is (are) not responding, one
component could be damaged. Please return the unit to
us for assessment.
There is an
abnormal
current draw
on the sensor
Faulty
component
A faulty component can lead to an abnormal current
draw before it fails. Please return the unit to us for
assessment.
The
amplitude of
the Earth’s
field is
abnormal
Erroneous
scaling factor
If the scaling factor applied to convert volts into
field amplitude is erroneous, the field reading will
appear either systematically high or low depending
on the error on the scaling factor. Please check the
conversion rate used in the acquisition software.
