4 Gas Connections
C
ONNECT A
R
EGULATOR AND A
G
AS
L
INE TO A
G
AS
C
YLINDER
The equipment images in this topic may differ slightly from your equipment; however,
the instructions are the same unless otherwise noted.
A. Gas tubing to instrument
B. Gas regulator shut-off valve
C. Low pressure gauge
D. High pressure gauge
E. Gas cylinder shut-off valve
F. Regulator connecter nut
G. Regulator control knob
H. Brass reducer fitting
1. Move the gas cylinder close to the analyzer.
2. Secure the cylinder in place using straps or chains connected to a wall bracket or other fixed
surface, or use a cylinder stand.
3. Use an appropriate cylinder wrench to remove the protective cap from the cylinder by turn-
ing the protective cap counterclockwise.
4. Attach the gas regulator to the connector on the gas cylinder. Hand tighten the nut, then use
an appropriate wrench to tighten an additional 3/4 turn.
5. Check for leaks at the high pressure side of the regulator and in the connector.
a. Turn the regulator control knob fully counterclockwise.
b. Slowly open the gas cylinder shut-off valve, then close it.
c. Observe the pressure on the high pressure gauge.
d. If pressure drops, repair the leak.
6. Connect the gas line to the regulator.
a. Connect the gas line to the regulator connector.
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Smart VacPrep Installation Instructions and Checklist
067-42870-02 (Rev A) — June 2022
