Clean And Verify The Gas Line - Micromeritics GEMINI VII Operator's Manual

10 Troubleshooting
C V
LEAN AND ERIFY THE
Unit [n] > Diagnostics
Always clean the gas lines and verify there are no leaks at the connections after a gas cylinder is
connected. This test examines the gas line from the analyzer to the gas cylinder, then from the
analyzer to the regulator shut-off valve. A report is generated at the completion of the test to verify
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:
1. Click the down arrow to the right of the Test field and select Gas Line Clean and Verify #
Rev [n]. This procedure uses the analysis gas as an example. Select Clean and Verify
Helium Gas Line Rev [n] if the helium cylinder is being verified.
2. Select Report after test and select Preview as the destination. Resize the window if this
option does not display.
3. Click Start. From the View drop-down list, select either Operation, Instrument Log, or Instru-
ment Schematic.
10 - 8
G L
AS INE
A. Gas tubing to instrument
B. Gas regulator shut-off valve -
OPEN
C. Low pressure gauge - 14-15
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
Gemini VII Operator Manual
239-42828-01 (Rev H ) — May 2021