Adixen Sensistor H2000-P PLUS Benutzerhandbuch Seite 71

Selecting the reference
Your reference should have a concent-
ration or flow equal or close to what is
to be measured.
Instrument specification is valid for
concentrations ranging from 0.1 to 10 times
the leak alarm level.
Example for reference gas:
Leak Alarm Level is set at 8 PPM.
A reference gas mix containing 8 PPM hy-
drogen in synthetic air will give best
accuracy.
USER MANUAL HYDROGEN LEAK DETECTOR - H2000 PLUS
For greatest accuracy, reference gas should
be within 50% of leak alarm level.
In this example it means 4 to 12 PPM Hy-
drogen.
Concentration of hydrogen should always be
within 2 PPM to 400 PPM.
Example for reference leak:
Leak Alarm Level is set at 2.0E-4 atm.cc/s
A reference leak calibrated to 2.0E-4 cc/s will
achieve the greatest degree of accuracy.
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