Regulator Expansion Kits; Laboratory Equipment And Supplies; Liquid Nitrogen - Micromeritics TriStar II Plus Pre-Installation Manual

TriStar II Plus Preinstallation Instructions and Checklist
• Suitable Subassemblies. The regulator must have a shut-off or outlet isolation valve compatible
with 1/8 in. (0.3175 cm) or 1/4 in. (0.6 cm) Swagelok
To purchase regulators from Micromeritics for your instrument, contact your local
Micromeritics Sales Representative.

Regulator Expansion Kits

It is sometimes beneficial to attach more than one instrument, and/or accessory device, or different
inlet ports to a single gas supply. Any time this is done, it is critically important that there be a means
of isolating, or shutting-off, each device that is attached to the gas supply regulator. Micromeritics rec-
ommends the use of a vacuum rated shut-off/isolation valve for this purpose.
This shut-off/isolation valve is required in order to prevent problems when changing gas cylinders or
servicing any of the devices attached to the gas supply.
If you anticipate the need to attach more than one inlet or one instrument and/or accessory device, you
must acquire one or more of the following regulator expansion kits:
• 004/33601/00 – Regulator Expansion Kit (2 outlet, 1000 psi maximum) – This kit contains one "T
fitting," two vacuum rated shut-off valves, and other necessary hardware. This expansion kit allows
you to provide gas to two inlets.
• 004/33601/01 - Regulator Expansion Kit (3 outlet, 1000 psi maximum) – This kit contains one
"Cross fitting," three vacuum rated shut-off valves, and other necessary hardware. This expansion
kit allows you to provide gas to three inlets.

Laboratory Equipment and Supplies

Liquid Nitrogen

Ensure liquid nitrogen is available in sufficient quantities. There should be 3 to 10 liters as a minimum
requirement for starting an analysis.
DO:
• Ensure an adequate supply of liquid nitrogen.
DO NOT:
• Use liquid nitrogen which is bluish (a sign of oxygen contamination) or is not clear.
303-42870-01 (Rev B) - Mar 2015
Laboratory Equipment and Supplies
®
compression fittings.
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