Refco REF-VAC Mode D'emploi page 6

EN
Use
 Press the
 During switch-on, the display shows everything.
 If the measured value is greater than 18000 Microns, the display will
show moving dash lines instead of a value.
 When the vacuum is drawn, the display shows the value.
Choosing the measurement unit
 Press the
(Pascal, Micron, mbar, Torr, mTorr, psi, inHg)
Illuminating the display
 Press the
Battery level indicator
 Check the battery level. When the empty battery symbol (
the batteries must be replaced in order to guarantee full function.
4
ON/OFF
button, the device is now switched on.
UNIT
button to change the measurement unit.
LIGHT
button to switch the display light on or off.
) appears,