3 Keypad Only Installations
ADSORPTIVE LINE TEST
Guidelines for Connecting Gases on page6 - 1
Clean and Verify the Gas Line on page3 - 4
This test helps to clean and verify the gas line for the adsorptive; first from the instrument to the
regulator shut-off valve, then from the instrument to the gas cylinder shut-off valve. This test
should be performed every time the adsorptive gas cylinder is replaced.
Always confirm the state for valves and the low-pressure gauge reading.
A. Gas tubing to instrument
B. Gas regulator shut-off valve -
OPEN
C. Low pressure gauge (15-18
psig)
D. High pressure gauge
E. Gas cylinder shut-off valve -
CLOSED
F. Regulator connecter nut
G. Regulator control knob -
OPEN
H. Brass reducer fitting
A series of prompts displays each time ENTER is pressed. Some prompts may request a task to
be performed. Always perform the task before pressing ENTER.
Informative prompt. Indicates how long a test will take or when an operator should open or close
a valve. Read the message, then press ENTER.
3 - 16
Gemini VII 2390 Installation Instructions and Checklist
239-42870-02 Rev (B) — May 2021
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