Ametek TRACE ANALYTICAL ta5000R, User Manual

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26 | Model ta5000R Gas Purity Monitor
4. Frequent power failures in the area where the analyzer is used are best
taken care of by installing an uninterruptible power supply (UPS). The
UPS will supply power instantly from batteries when the main power is
interrupted. Proper power will be supplied for minutes or hours depend-
ing upon the size of the battery. Since the ta5000R needs less than 5A of
current, the UPS battery pack can be relatively small.
Support Gas Utilities Preparations
The ta5000R needs support gases in order to run properly. Please refer
to Specifications for detailed gas specifications for purchasing gases in
cylinders. In order to achieve the low detection limits, it may be essential
to further clean the gases with external purifiers.
General Notes on Regulators and Plumbing
Ultra High Purity (UHP) regulators and gauges are suggested for all in-
coming gas streams
Carrier gas should always flow through the ta5000R. Do not use an
automatic shut-off valve for the sample/carrier gas supply that would
stop flow in event of power failure. It is essential to always have flow
through the RGD to prevent mercury build-up in the photometer cell
and on the cell windows. Mercury build-up will decrease sensitivity
of the detector. We recommend installing a spare carrier gas cylinder
into the carrier gas supply line for the RGD. The spare cylinder can
be plumbed in through a tee in the line. Use a shut-off valve to isolate
the spare cylinder when not in use. This extra cylinder provides a
safety margin in order to maintain flow through the analyzer.
Im-
mediately order a new cylinder when the spare begins to be used.
Use Cajon VCR fittings with gaskets to connect to UHP regulators.
Do not use pipe thread fittings since they are not clean and are not
leak-tight for Ametek’s trace gas analysis.
Suggested Hardware for Gas Connections
UHP Regulators for Carrier and Sample Gases
Dual stage stainless steel, 0 to 150 psig outlet with gauges and 1/16-inch
VICI female fittings.
Nut and ferrule, 1/16-inch VICI
8 each required for use with the Analyzer.
Nut and ferrule, 1/8-inch VICI
1 each required for use in connecting the Actuator gas.
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CAUTION
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CAUTION