6-2 | Model 933S UV Analyzer
Under normal operating conditions, lethal concentrations of H
2
S and
other toxic gases from the sample stream may be present within the
sample system. The sample system is defined as all components in the
analyzer system through which sample gas passes.
Before working on the sample system, manually Zero the analyzer,
isolate it (block it in) from the sample stream, and disconnect the
power. Follow this procedure prior to changing out any analyzer com-
ponents or replacing any parts (as part of regular preventive mainte-
nance), or when performing leak checks following the replacement of
instrument air supply or other adjustments to any of the connection
points in the analyzer’s sample system. If this is not possible, a
breathing apparatus must be worn while servicing the sample
system.
If handling the circuit boards, do not subject them to static discharge.
The ideal solution is a static-safe work area. Since such areas typically
are not available at analyzer installation sites, the use of a wrist strap
connected directly to a ground is recommended. If a wrist strap is
not available, you should at the very least touch the metal chassis to
ground yourself before handling the boards.
!
CAUTION
!
WARNING
To Next Page
Loading...
Need help?
General
