Elcometer MTG2 Guide D'utilisation page 8

5 SETTING THE ZERO POINT
Setting the zero point for the transducer is important. If the zero
point is not set correctly, all measurements will be inaccurate.
The gauge will remember the last zero point. It is generally a good
idea however, to set the zero point whenever the gauge is switched
on, and when a different transducer is used. This will ensure that
the zero point is correct.
To set the zero point:
1 Plug the transducer into the gauge
ensuring that the connector is fully
engaged.
The wearface of the transducer should
4
be clean and free of any debris.
2 Press the On/Off button to switch
the gauge on.
3 Press Menu/Calibration/Zero Set
and apply couplant to the zero disk.
4 When prompted, press the
transducer on to the zero disk,
making sure it is flat against the
surface.
The display will show a thickness value
4
which is constantly updating. The
stability of the reading is indicated on the
stability bar to the right of the display. A
valid reading has a stability of 5 or more.
5 Remove the transducer from the
zero disk. The last reading is held
on screen. If not representative,
repeat Step 4.
Excessive use of couplant can result
4
in a distorted reading when the
transducer is removed from the
surface.
6 Press 'Zero' to set the zero point.
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