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4-12. Power-off
After measurement, squeeze the handy aspirator while the three-way switching valve is directed at the REF.
side to draw in fresh air and discharge the measuring gas that remains inside the purity meter.
To turn off the power, hold down the POWER switch. The buzzer sounds three times. Hold down the
POWER switch until the screen display disappears to turn off the power.
After turning off the power, store the handy aspirator, sampling hose, etc. and then close the cover.
