Maintenance
Leak Test
Thermo Scientific
49iQPS Instruction Manual
4-5
Use the following procedure to perform a leak test.
Equipment Required:
(4) Swage Lock caps
Vacuum Tester with Gauge (with a resolution of .5 in Hg or better)
1.
Turn instrument OFF, unplug the power cord.
2.
Cap the ZERO AIR port on the rear panel.
3.
Cap the OZONE out and VENT ports on the rear panel.
4.
Cap the Photometer reference side vent port internal to the unit.
5.
Connect the hand-pump to the EXHAUST port on the rear panel
6.
Squeeze trigger until gauge reads 10 in Hg.
7.
Observe vacuum gauge for stable reading for 5 minutes. If reading
remains at 10 in Hg, no leak is present.
Note
Acceptable leak rate is .5 in Hg over 10 minutes.
▲
Note
Some models will also have a valve fitting that will also need to be
capped.
▲
Leak Test
Summary of Contents for Ozone Primary Standard 49iQPS
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