PN T900-014, Rev B
Support Gas Utilities Preparations
The ta7000F needs several support gases to ensure proper operation. Refer to
the Specifications chapter for detailed gas specifications for purchasing gases
in cylinders. 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 incom-
ing gas streams.
• Use Cajon VCR fittings with nickel 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.
• A special adapter/fitting is used on gas cylinder pressure regulators going
to the ta7000F. The adapter has a 1/16-inch VICI to 1/4-inch VCR fitting.
2-6 | ta7000F Gas Purity Monitor
