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- NPT fittings: When connecting the device using a NPT fitting,
apply a thread sealant or wrap the threaded portion of the tubing
with one-and-a-half to two wraps of pipe thread seal tape such
as PTFE (Teflon®) tape and hand tighten the gauge into the
gauge port. Do not use a wrench or other tool which may dam-
age the gauge.
3.2
Electrical Installation
3.2.1 Grounding
Be sure the vacuum gauge and the rest of your vacuum
system are properly grounded for safety as well as intended
operation of the equipment. When using KF flanges, metal
clamps must be used to ensure proper grounding. Be aware that
some vacuum fittings such as NPT connections installed using
Teflon tape may not allow for metal-to-metal contact between the
vacuum gauge and the vacuum chamber. If such is the case,
use a 12 gauge or larger copper wire to connect the vacuum
gauge to a ground lug on your vacuum chamber as shown be-
low.
Use 12 gauge or
larger ground wire
Ground lug
Vacuum gauge fitting
Gauge tube
Metal clamp or
metal hose clamp
Vacuum
chamber
Summary of Contents for 3PE5-001-B7HZ
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