Cleaning And Verifying The Gas Lines - Micromeritics Gemini VII 2390 Confirm Installation Instructions And Checklist

Connecting Gases

Cleaning and Verifying the Gas Lines

You should always clean the gas line and verify there are no leaks at the connections after you
connect a gas bottle. This test examines the gas line from the instrument to the gas bottle, then
from the instrument to the regulator shut-off valve. A report is generated at the completion of
the test verifying that it has passed or failed. Causes and corrective action for a failure are
provided.
Before beginning, confirm that the state for valves and the low-pressure gauge are as follows:
Regulator Shut-Off valve
OPEN (CCW)
CW = Clockwise
CCW = Counterclockwise
1. Select Unit [n] and make sure that Manual Control is disabled (there is no check mark
next to Enable Manual Control).
2. Select Unit [n] > Diagnostics; the Service Test dialog is displayed.
3. Click the down arrow to the right of the Test field and select Clean and Verify Analysis
Gas Line Rev. [latest revision letter].
This procedure uses the analysis gas as an example. Select Clean and Verify Helium
Gas Line Rev. [latest revision letter] if the helium bottle is being verified.
44
Low-pressure gauge
14 - 15 psig
Gemini VII 2390 Confirm Installation Instructions and Checklist
Gemini VII 2390 Confirm
Gas Bottle Shut-Off valve
CLOSED (CW)
Make sure the Pressure
Control knob is open
OPEN (CW)
Feb 09