Specifications

BARTINGTON INSTRUMENTS
Page 6 of 12 M2240 ISSUE 1
Pre-Installation Tests
Prior to the installation of the system, the magnetometer, cable and power supply must be fully tested to
ensure correct function as follows:
Caution: Take care to avoid bending, or otherwise damaging the contacts whilst conducting the
tests.
Caution: Carefully check for correct connection before applying power. Applying incorrect polarity
or power to output connections may cause irreparable damage to the sensor.
1) Test the cables for continuity (using an electrical continuity tester or ohmmeter).
a) Test the cables end to end at the connectors to ensure the correct pins have been
allocated to the conductors and there are no open, or high resistance circuits.
b) Test the cables at the connectors to ensure there are no short circuits between the
conductors.
2) Check the power supply output voltage using a voltmeter. Refer to the appropriate datasheet for
the required values.
Caution: Switch off the power supply before connecting to the Mag639.
3) Connect the magnetometer to the cable connector.
4) Connect the power supply to the other cable connector.
5) Switch on the power supply and wait until the magnetometer has stabilised. Refer to the
appropriate datasheet for warm-up times.
Mounting Recommendations
Mag639 comes in a circular package which may be clamped using Bartington’s Universal Tripod adaptor or
similar.
Post Installation Testing
1) Site the magnetometer, and install the power supply and cabling.
2) Switch on the power supply and wait until the magnetometer has stabilised. Refer to the
appropriate datasheet for warm-up times.
3) Confirm no magnetic objects are moving in the vicinity.
4) Monitor the sensor outputs.
5) Confirm that the sum of the measured magnetic field vectors is similar to the expected local earth
field.