Cleaning And Verifying The Gas Line - Micromeritics Gemini VII 2390a Operator's Manual

Connecting Gases

Cleaning and Verifying the Gas Line

Always clean the gas lines and verify there are no leaks at the connections after a gas bottle is con-
nected. 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:
Low-pressure gauge
14 - 15 psig
Regulator shut-off valve
OPEN
1. To start diagnostic testing, go to Unit [n] > Diagnostics.
2. Click the down arrow to the right of the Test field and select Clean and Verify Analysis Gas
Line Rev [n]. This procedure uses the analysis gas as an example. Select Clean and Verify
Helium Gas Line Rev [n] if the helium bottle is being verified.
3. Click Report after analysis and select Preview as the destination. Click OK.
4. Click Start. From the View dropdown list, select either Operation, Instrument Log, or
Instrument Schematic. Refer to
5. A series of prompts display on the screen requiring operator response. The length of time a test
will run is also indicated on the screen.
9-22
Analysis, page 6-2.
Start
Gas bottle shut-off valve 
CLOSED
Regulator control knob
OPEN
239-42828-01 - Dec 2012
Gemini VII