Perkin-Elmer STA 6000, Installation And Hardware Manual

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40 . STA 6000 Installation and Hardware GuideSTA 6000 Installation and Hardware Guide
NOTE: The figure above shows where the fuses go. The fuse that is installed is for 230V.
4. Insert the fuse (6.3 AT) for 110 V (this goes into the right side when 110–120 V is in
the upright (legible) position).
NOTE: Ensure that the head of the fuse makes contact at both ends of the fuse holder.
5. Reinsert the fuse holder.
Connect the Purge Gas Supply to the STA 6000
The STA 6000 has a system purge gas inlet and two sample purge gas inlets at the back of
the analyzer. The system purge gas purges the outer portion of the sample holder/heat
exchanger assembly with dry gas. This facility must ALWAYS be used when working with the
analyzer. The dry gas, preferably dry nitrogen, prevents condensation of water vapor on the
measuring cell. The system purge gas flow rate is controlled by a needle valve inside the
analyzer, and is preset to 40 ml/min.
NOTE: The STA 6000 analyzer has a mass flow controller built into the analyzer. However, if
you have an autosampler and are using the dry box purge, this does not have a mass
flow controller. Therefore, it is necessary to use either an H restrictor
(P/N 01541498) or a Float Displacement Flow Meter (P/N 02901624) to obtain the
proper flow rates. The gas must be dry. A flow rate of between 20 and 40 ml/min
is recommended.