Option
Description
Vacuum Pump
The analyzer requires a vacuum pump for sample analysis. Vacuum
pumps used must meet the following criteria:
n
Achieve vacuum levels of 20 μmHg at the analyzer inlet
n
Contain an anti-suckback valve to prevent vacuum pump oil from
back streaming into the analyzer in the event of a vacuum pump
failure
n
Contain an NW16 inlet port for connection to the analyzer
A device to reduce oil vapor backstreaming is recom-
mended.
The vacuum pump must have an anti-suckback valve to
prevent oil from being admitted into the analyzer should
the power fail while the system is under vacuum. Pumps
available from Micromeritics are equipped with an anti-
suckback valve.
An oil-based or oil-free vacuum pump can be used with the analyzer.
Appropriate vacuum pumps are available from Micromeritics.
Equipment Options and Upgrades
Gemini VII Keypad Operator Manual
239-42801-01 (Rev E) — July 2021
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