Regulators And Plumbing - Ametek ta3000R User Manual

Support Gas Utilities Preparations
General Notes on Regulators and Plumbing
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CAUTION
22 | Model ta3000R Gas Purity Monitor
3. It is recommended to connect the ta3000R analyzer and low powered
accessories to a dedicated electrical circuit. Do not plug the analyzer into
a circuit that is shared with other equipment with large intermittent cur-
rent loads. Line voltage spikes can have detrimental effects on the analyt-
ical capabilities. Where there are noisy circuits, a power line conditioner
should be considered to even out spikes and other fluctuations.
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 ta3000R needs less than 5A of
current, the UPS battery pack can be relatively small.
The ta3000R needs support gases in order to run properly. Please refer to
Specifications, page 14 for detailed gas specifications for purchasing gases
in cylinders. In order to achieve the low detection limits, it may be essen-
tial to further clean the gases with external purifiers.
1. Ultra High Purity (UHP) regulators and gauges are suggested for all
incoming gas streams.
2. Carrier gas should always flow through the ta3000R. 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 sensi- tivity of the
detector. It is recommended to install 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. Immediately order a new cylinder
when the spare begins to be used
3. 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 trace gas analysis.