910-257C March 2006
Page 4-4 MG2 Series
To adjust the display contrast for the Model MG2-DL:
Step 1: From Measure Mode, press [2
nd
F][FREEZE](LIGHT/
LCD) to turn on the back light and begin contrast
adjustment.
Step 2: Use the [ ] or [ ] key to adjust contrast.
Step 3: Press [ENTER] to exit Contrast Adjust Mode.
Step 4: Press [2
nd
F][FREEZE](LIGHT/LCD) to turn the back light
off.
4.2 Freeze Mode
The freeze function allows the operator to freeze the thickness display
when the [FREEZE] key is pressed. The display is returned to an
active status by pressing [FREEZE] a second time or by pressing
[MEAS]. This function is useful in a situation when the user wishes to
hold a displayed thickness reading. This is helpful for high
temperature thickness measurement applications to limit the
transducer contact time. The freeze can also be used in combination
with the Min/Max function.
4.3 Gain Adjust (Model MG2-XT and MG2-DL
Only) (Non-Live Waveform)
The gain adjust allows the normal measurement sensitivity to be
increased or decreased by a fixed amount (approximately 10 dB Hi
Gain and 6 dB Low Gain). This function is available for those
applications in which more or less than the default sensitivity is
required but in which the use of a fixed sensitivity increase rather than
a sensitivity proportional to the measured noise is preferred. Use of
the Gain Adjust Function is generally recommended for all high
temperature measurements.
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