Zero Calibration - Extech Instruments CG206 User Manual

ZERO Calibration
The customer should perform a Zero Calibration before any measurements are taken.
Preparing for ZERO Calibration
1. Clean the probe tip and the substrate (grease, oil, metal scraps.
The slightest impurity will affect measurement and will distort readings.
2. Switch the meter ON at a 10 cm (4") minimum distance from any metal.
3. Set the meter to the correct substrate type, FE or NFE.
4. The meter is now ready for calibration.
Zero Calibration
ZERO Calibration from the Programming Mode
From the normal measurement mode, press the LEFT button (SEL) to access the menu.
1.
Use the UP/DOWN button to scroll to CALIBRATION mode.
2.
Press LEFT (SELECT) to open the CALIBRATION parameter.
3.
Scroll to 'CAL ZERO OF FE' or 'CAL ZERO OF NFE'
4.
Press the LEFT button (SELECT) and 'FE CAL' or 'NFE CAL' should be displayed on the
5.
LCD's lower level.
Press the sensor against the FE or NFE zero reference substrate and wait for the beep.
6.
Press the LEFT button (OK) to accept the calibration value or press the RIGHT button
7.
(CANCEL) to abort the calibration.
If the meter did not read 0.0 you can try again or "Set" the Zero reference by pressing
8.
and holding the ZERO button until the meter beeps.
When the Zero calibration is complete, the meter is ready to make measurements.
9.
Note that the user can delete ZERO Calibration data by selecting 'Del ZERO of FE' or 'Del
ZERO of NFE' from the CALIBRATION mode in the Programming menu.
ZERO Calibration – Relative Mode
This mode can be used to set a zero point on reference substrate or on a known
1.
thickness of material.
For a relative measurement, any thickness greater or lesser will be referenced to this set
value.
Press the sensor against the FE or NFE zero reference substrate or on a known thickness
2.
value of material.
Press and hold the ZERO button until it beeps to set the relative zero calibration to 0.0.
3.
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