BARTINGTON INSTRUMENTS
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1. Use a water-blocked cable.
2. Reduce the risk of stress on the soldering by ensuring there is adequate slack in the wire
between the cable and the wire terminations.
3. Brace the slack with epoxy resin before moulding the cable to the connector.
4. Fit additional protection in the form of a plastic hose, or sleeve, around the cable(s) at the
emergence point.
Note:
Cables are particularly prone to wear and damage at the point where they emerge at
the surface of the ground, or sea.
4.3. 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.
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.
Note:
Cable resistance will vary: refer to the product brochure for the expected values.
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 product brochure
for the required values.
Caution:
Ensure the polarity is correct. Incorrect polarity is likely to irreparably damage
the sensor.
Note:
Bartington recommends the use of a current-limited power supply.
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
product brochure for warm-up times.
6. Confirm no magnetic objects are moving in the vicinity.
