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4 CALIBRATING THE K-METRON
The unit may come with calibrated data already recorded for each of the magnets held in
the unit's memory; this will be confirmed if a Calibration Certificate has been sent with the
unit. The calibrated data associated with each type of magnet will be automatically called on
selection of the magnet from within the configuration menu. After the K-METRON is
calibrated with each type of magnet the values are stored within the K-METRON memory.
Therefore, re-calibration is not necessary when switching between magnets; instead, the
desired magnet is chosen in the configuration menu under the MAG TYPE section.
The K-METRON's accuracy improves with careful magnetic coupling between the sensor
head and the part face. Measurement accuracy ranges from +/- 0.2mm at the lower end of
the readings and +/- 1mm at the upper end of measurement. This will depend on whether
the spherical magnet or the cube is used.
Although the units are calibrated before leaving 493K re-calibration may be necessary
within your plant. This can be determined by selecting the appropriate magnet and
validating the data as described below in section 4.3 Validating Calibration.
Select a location that is at least 1 metre away from any steel or ironwork which will affect
accuracy of calibration.
Re-calibration is not required for use with differing materials.
4.1 Entering the Calibration Menu.
The Calibrate Menu is found within the configuration menu. Use the following button
presses, starting from when the K-METRON is in the OFF state, to enter the Configuration
menu:
1. Hold down the X button (or "Delete" button in older models) and switch the unit on
by pressing the On/Off button.
2. Continue to hold down the X (or "Delete") button, the display will read "Wait ...
Setup mode".
3. Continue holding down until the display reads "MAG TYPE" then release the X (or
"Delete") button. (Ensure that the orange trigger is not being mistakenly held down).
4. Once the display reads "MAG TYPE", the unit is now in the Configuration Menu.
The Configuration Menu is navigated using the following buttons:
To SCROLL through the Menus press X (or "Delete").
To SELECT a Menu item, press the ORANGE TRIGGER.
Scroll through the menu using the X (or "Delete") button and select "Calibrate" by pulling
the orange trigger. The unit will prompt for re-confirmation, and this is acknowledged again
by pulling the orange trigger.
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K-METRON Radio User Instructions (Firmware 3.0.4; Doc v4.0)
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