Interior Modules; Gas Entrance Manifold; Dosing Volume Manifold - Micromeritics TriStar II 3020 Service Manual

Interior Modules

Interior Modules
The analysis module consists of three subassemblies discussed below.

Gas entrance manifold

The Gas Entrance Manifold provides four gas inlet ports, that face the rear of the instrument.
The inlets have dust filters (frits) to prevent dirt from gas lines getting into the system. This
manifold also has the vacuum connection.
The servo valve sets dosing pressures in the manifold and regulates the rate of pressure
decrease during gas evacuation.The manifold transducer is also located on the gas entrance
manifold. All other valves are solenoid valves.

Dosing volume manifold

The Dosing Chamber or Volume Chamber is an aluminum chamber that has a capacity of 18
mL of volume. The volume chamber does not have any valves attached to it in order to prevent
2-6
Gas Inlet Photo
Dosing Volume CAD
Transducer
Servo valve Solenoid valves
Gas Inlet CAD
TriStar II 3020Service
Vacuum pump
connector
Gas inlet ports
Jul 09