Analyzer HE/02 FAQ

Analyzer HE/O2

How long is the oxygen sensor's service life?
How long is the helium sensor's service life?
Is it possible to measure other gases with the analyzer?
Can the analyzer identify trace amounts of helium?
Why does the analyzer show that there is -0.3% helium in air?
I upgraded the firmware and He sensor stopped working
I get "Ambient pressure sensor not present" error
Is it possible to put a rechargeable 9V battery in the analyzer?
I get Error 7 "Accumulator is empty", but I have no accumulator installed.