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The
built-in "whisper quiet" air compressor is mounted inside the chassis of
the 8610C or 310 GC where it provides a nearly silent supply of air for
the FID or FID/DELCD detector flame. The FID consumes 300 ml/min
of air, which is 10 times the 20-30 ml/min consumption of hydrogen and
carrier gas, so typically the air cylinder runs dry long before the other
gases. With the built-in air compressor, no air cylinder is required,
simplifying field operations and saving the expense of replacing air cylinders
on a regular basis. The air compressor delivers unfiltered air to
the FID, although some users choose to add a filter. Even in moderately
contaminated environments, the small amounts of hydrocarbons in the surrounding
air cause no baseline problems for the FID, but in situations where ambient
air quality fluctuates dramatically, an air cylinder may make sense.
In most cases, however, the built-in air compressor is a wonderful convenience
and is highly recommended especially for GCs which will be used in the
field.
8690-0070 Built-in "whisper quiet"
air compressor
( 120 VAC ) $595.00
8690-2270 same as above
but 220 VAC $695.00
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