User Manual

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7. Operation steps
7.1 Open battery cover and install a 9-volt battery in the battery compartment.
Press power key to start measuring
7.2 press UNITS keychoosing proper unit
7.3 connect Tube
7.4 read the testing values on LCD display
Notewhen the meter is on, no gas pressure input, the meter will not
necessarily be zero, you need to reset by yourself.
8. Buttons function
8.1 Keyit can turn on and turn off the meterpress , open
manometer, the screen will display about 2 seconds, and then enter normal
measurement model.
8.2 Keyafter power on the meterpressing this button can turn on and
turn off the backlight.
8.3 Keyin measurement modepress , it can review Max ,Min, Avg
values. In this mode, other button functions are locked not operated. Press