Thermo Scientific TVA2020 Instruction Manual page 7

Thermo Fisher Scientific
Alert
CAUTION
Equipment Damage
Safety and Equipment Damage Alerts
Description
Never change an electrical component in an area
classified as hazardous due to presence of flammable
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gases or vapors.
Parts replacement and maintenance should not be
performed in areas classified as hazardous due to
presence of flammable gases or vapors. Use only Thermo
Fisher Scientific replacement parts. (Extended Service
Plans are available; contact Thermo Fisher Scientific for
▲
further information.)
A safe refill operation means there are no hydrogen
leaks. Before any valves are opened, use a wrench to
firmly tighten connections to the hydrogen supply tanks
and the tank fill adapter. If escaping hydrogen is heard
during the filling operation, close all valves and correct
the leak before proceeding. Leak test with soapy water or
▲
equivalent.
Remove the hydrogen tank from the instrument before
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servicing.
All maintenance procedures must be performed on a
clean surface using clean tools. Avoid touching the
lamp's window as well as the metalized portion of the
cell assembly with your bare fingers. Fingerprints left on
these parts may adversely affect the sensors operation.
Latex gloves are preferred, but if they are not used, your
hands must be clean and free of oils, lotions, etc. It is
acceptable to hold the lamp by its glass body or by the
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edges of the window.
If you use multipoint calibration or a gas other than
methane or isobutylene and then apply response
factors/curves (that have been generated with reference
to a single point methane/isobutylene calibration), the
resulting measurements will probably be incorrect.
Do not fill hydrogen tank to a pressure greater than 15.2
▲
MPa (2200 psig).
Observe all hydrogen handling procedures listed below.
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Do not allow any contact with the igniter coil during
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cleaning.
Do not operate the TVA2020 if its case is damaged or
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otherwise compromised.
TVA2020 Instruction Manual
About This Manual
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