O2 EII Pro
Technical Manual
Document ref: MO2-865-00
December 2015
Page 14 of 26
7.
For ease of use when sampling several tanks, the O2 EII Pro is fitted with a hold
feature. Once a stable reading has been observed, press the on button to hold this
reading. The O2 EII Pro can then be moved away from the tank to enable you to
record the O2 reading. To cancel the reading press the on button once.
8.
It is important to note that after a few seconds of the gas flow being stopped the
reading will begin to change towards the level in the surrounding air of 20.9% O2
you should therefore take the reading or press the hold button while flow is ON.
Reading held
