Hi Flow
Sampler
Operation
Instruction 0055-9017
11
The standard sampling hose is 6 foot long. If a longer length is needed, the optional 12
foot hose (P/N 0055-0287) can be ordered, or additional sections of hose can be added
by simply clamping them together along with connecting together the background-gas
hose.
Choose an attachment (refer to Section
) that will capture the entire
leak and attach it to the end of the hose.
2.4 Grounding
WARNING:
To prevent the possibility of a static discharge, the Hi Flow
Sampler must
be grounded while conducting a leak test.
Attach the unit’s grounding clamp to the nearest earth ground.
Tip:
When not in use, the grounding clamp can be stored by attaching it to one of the
shoulder straps.
Figure
2-3
. Grounding Clamp
2.5 Attachments
A variety of attachments are available for the Hi Flow
Sampler that simplifies the task
of capturing the entire gas leak. Choose the appropriate attachment for the type of
component being tested from the ones listed below, and then connect it to the end of
the instrument’s main sampling hose.
CAUTION:
Attachments can have the effect of concentrating the leak. Ensure that
enough air is present when first sampling to support catalytic mode of the instrument.
Flooding the sensor with high concentrations of methane at startup can result in
erroneously low readings and prevent transition to thermal conductivity mode.
