Elcometer NDT MTG6 Guia Del Usuario página 18

8 CALIBRATING YOUR GAUGE (continued)
8.4 USING VELOCITY CALIBRATION
To calibrate the gauge using this method, the user must know the
sound-velocity of the test material. This calibration method is useful if
uncoated sample test pieces of known thicknesses are not available.
1 Press the On/Off button to switch the gauge on.
2 Press Menu/Calibration/Cal Method and select 'Velocity'.
If 'Velocity' is already selected - the calibration method currently selected

is indicated by the icon to the right of the display - simply press
Menu/Calibration/Calibrate.
3 Enter the known sound-velocity using the
0 to 9 and the  softkey to move to the next digit, followed by
'Set' to use the value entered.
Pressing 'Escape' at any time will exit the calibration procedure without

calibrating the gauge.
The sound-velocity entered will be displayed to the right of the display,

below the calibration method icon.
8.5 USING THICKNESS SET CALIBRATION
Only available when in 'Velocity Mode' - see Section 4.6 'Selecting the
Measurement Mode' on page en-8 - to calibrate the gauge using this
method, the thickness of the test material must be known.
1 Press the On/Off button to switch the gauge on.
2 Press Menu/Calibration/Cal Method and select 'Thickness Set'.
If 'Thickness Set' is already selected - the calibration method currently

selected is indicated by the icon to the right of the display - simply press
Menu/Calibration/Calibrate.
3 The user will be prompted to perform a 'Zero Set' to set the zero
point of the transducer, which is recommended before calibrating
the gauge - see Section 6 'Setting the Zero Point' on page en-12.
4 Enter the known material thickness using the
select 0 to 9 and the  softkey to move to the next digit, followed
by 'Set' to use the value entered.
Pressing 'Escape' at any time will exit the calibration procedure without

calibrating the gauge.
The material thickness entered will be displayed to the right of the display,

below the calibration method icon.
en-17
R
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softkeys to select
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
softkeys to
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