AQUATRAN 3/38 Operator’s Manual
Setting Up
MOCON, Inc.
Revision G
2-7
Carrier Gas (Nitrogen)
The AQUATRAN 3/38 requires a Carrier Gas that is 99.7% nitrogen. A standard T size cylinder will typically
provide sufficient gas to operate a single instrument for several weeks.
Gas Distribution System
Each instrument ships with a local regulator/isolation device (called a Regulator Tee) that can be used to connect the
instrument to a common Carrier Gas distribution system. Figure 2-4 illustrates how a gas distribution system for
multiple instruments can be created using the provided Regulator Tee.
When using compressed gas cylinders, consideration should be given to the impact cylinder replacement will have on
operational efficiency. Interruptions to the gas supply when a cylinder is changed (or goes empty) will have an
adverse effect on any active tests. Cylinder manifolds that provide an uninterrupted gas supply during cylinder
replacement are available from many gas suppliers.
Figure 2-4: System Plumbing Connection Diagram
Carrier Gas
Cylinder
Tank Regulator
Desiccant
Regulator Tee
Regulator Tee
Filter
Filter
Brass Plug