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Mounting
• The sensor is positioned too loosely
- The sides of the magnets are not all seated evenly.
- Tighten the knurled nut ½ turn.
- The spiral spring may be too tight. --> Loosen the knurled nut.
Strain measurement
• The measurement does not produce a useful result
- Has the correct unit been set in the display software?
- Are the sensors stable and do not wobble?
- Is the surface to be measured clean?
- Is the surface to be measured ferromagnetic?
- Is the surface to be measured free of paint?
- Are the magnets clean?
- Is the foil or strain gauge damaged?
Foil
• To avoid damage on the foil, it should be checked always before using the sensor.
• Immediately remove any impurities.
Magnet
The surfaces of the magnets are ground and can suffer rusting. They must therefore be protected using an anti-corro-
sive substance. We recommend to remove any impurities and lubricate the magnetic surfaces after use with a paper
towel soaked in anti-corrosive substance.
Servicing
The QE2008-W sensors should be calibrated every 12 months to assure the measurement metrical parameters and
stability. This process can be executed only by professionally trained staff in Sensormate AG. Contact your Gefran
dealer or Gefran Customer Service to organize this task.
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8� TROUBLESHOOTING
9�
MAINTENANCE
Subject to technical modifications
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