©
Agilent Technologies 1989–2002
Agilent 3070 / 79000 Site Preparation
7-1
7777
Site Preparation – Compressed Air and Vacuum
Requirements
03066-90114 Rev. Z 06/2002
In this Chapter...
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Compressed Air and Vacuum Primer
Introduction
Both compressed (or pressurized) air and vacuum are
used in the Agilent 3070 / 79000 testhead. Compressed
air is used primarily to secure the test fixture to the
testhead. Vacuum is used primarily to actuate the test
fixture: that is, to make contact between the board under
test and the probes in the fixture. Compressed air is
sometimes also used for air-assisted, solenoid-actuated
valves used to switch the vacuum, and for air-actuated
test fixtures.
The site preparation requirements for compressed air
and vacuum are different depending on the type of
testhead you are preparing the site for. This chapter
describes those requirements. For more about
compressed air and vacuum principles and terminology,
see the short