6 Maintenance
6-4. Maintenance mode
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FP-300AGZS
6-4-2. LCD contrast adjustment
LCD Contrast Adjustment Mode
Press the BZ STOP key.
Adjustment
Pressing the
key makes the display
darker and pressing the
key makes
the display lighter.
When the BZ STOP key is pressed,
the contrast level is determined and
the gas monitor returns to the menu
screen.
