42/24-12-2 EN
Advance Optima Ex Analyzer Modules Operator’s Manual
11
Check Gas Path Seal Integrity
Quantity
Description
1
Pressure gauge
1
Tubing, approx. 1 meter in length
1
Tee with shutoff valve
Material Required
Air or nitrogen
CAUTION!
If the seal test is to be carried out with air and there is the possibility of a
combustible gas being present in the gas paths or if a combustible gas is to
be introduced later, the gas paths should first be purged with nitrogen. Other-
wise the seal integrity test can be performed with nitrogen.
Step
Action
1
Plug the outlet of the gas path to be tested.
2
Connect a hose with a tee fitted with a shutoff valve to the inlet of the
gas path to be tested.
3
Connect the free end of the tee to the pressure gauge.
4
Blow air or nitrogen through the shutoff valve until the sample gas path
is pressurized to a p
e
of approx. 50 hPa (= 50 mbar). Close the shutoff
valve. Maximum excess pressure p
e
= 150 hPa (= 150 mbar).
5
The pressure should not change measurably in 3 minutes. A sharp
pressure drop is a sign of a leak in the gas path being tested.
Gas Path Seal Integrity
Verification
6
Repeat steps 1-5 for all gas paths in the analyzer module.
