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Revision 10
GT SERIES
1 INSTRUMENT, 7 APPLICATIONS
4.7.5. Button Operation
Action
Button
Note
Invert Display
Press
Screen Backlight
ON/OFF
Press and Hold
Backlight automatically switch OFF after two
minutes.
Zero
Press and Hold
Zero the pressure range.
Mode Selection
Press and Hold
Release 1s after the mode selection menu appears.
Use the UP
or DOWN
buttons to select
desired mode.