Metor 6M PAGE 43
Installation and Operating Manual
92102916 REV 5 8. CALIBRATION
Setting sensitivity of zones
If you want to change the sensitivity of a certain zone to a different level than the
others, use the zone sensitivity adjustment.
• The adjustment of zone sensitivity does not affect the overall sensitivity of the
equipment.
• Adjustment of zone sensitivity is usually used only in situations where, for
example, a large static metal object is very close to the gate.
• In most cases, there is no need to change the sensitivity of separate zones,
except when adjusting ankle level sensitivity.
Sometimes zone sensitivities can be used to improve throughput. For example, if
critical position of the critical object, i.e. position where critical object gives
smallest signal, happens to be over the head, it is better to increase zone sensitivity
of corresponding zone and leave overall sensitivity lower than to increase overall
sensitivity.
Selection of detecting program
Compare signals of typical harmless objects with the different detection programs
you have selected. Choose the detection program that gives least signal from the
harmless objects.
Testing
Check daily e.g. when switching on the equipment:
1. The functioning of the WTMD
• Using, for instance, one test object.
2. The mechanical mounting of the WTMD
• Parallelism of coils and tightness of mounting screws. See "Mechanical
assembly" on page 19.
3. The visual inspection
• Mechanical condition, cables etc.
The Metor 6M is ready for operation after the mechanical installation, connections
and adjustments have been completed. The adjustments that effect the performance
of the detector should be correctly made to optimize the operation for each
application.
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