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7
Calibration
If the device has not been used for a longer period of time, it must be calibrated carefully. A
calibration is also necessary if the impact devices are changed frequently. Use the hardness test
block to calibrate the meter.
-
To enter calibration mode, the meter must be turned off. Press and hold the arrow key
and at the same time shortly press the
meter will automatically enter calibration mode.
-
Measure five different points on the standard test block. You will see in the display how
many measurements you have made. After the fifth measurement, the display will
directly show the average value of the calibration.
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Compare the average value with the HLD value on the upper side of the standard test
block.
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Use the arrow keys
The calibration range is ±15 HLD.
-
Press the Menu key
calibration.
Note: Measuring parameters such as material, hardness scale and impact direction cannot be
changed during the calibration.
8
Maintenance
8.1
Storage
Store the measuring instrument in its carrying case and make sure the environmental conditions
are within normal ranges. Avoid magnetic fields, corrosion and shocks.
8.2
Removing the sensor cable from the meter
Hold the moveable connecting piece on the sensor cable which is inserted into the sensor
connection and pull it away from the instrument.
8.3
Maintenance and care of the impact device
After using the impact device approx. 1000 – 2000 times, the guide tube and the impact
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body should be cleaned by using the nylon brush that comes with the meter. To do so,
unscrew the support ring, then take out the impact body, move the nylon brush through
the guide tube counterclockwise, making helical movements until you reach the bottom.
Repeat this procedure four times. Re-install the impact body and the support ring.
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Do not use any lubricants inside the impact device.
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Place the impact body back into the loading tube and screw the support ring back onto
the end of the impact device.
and
to change the average value of the calibration.
to confirm the calibration or the Back key
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31
key to switch on the instrument. The
to cancel the
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