Instruction manual

NGA 2000 MLT Hardware

TECHNICAL DESCRIPTION

1 - 34

Emerson Process Management GmbH & Co. OHG

Instruction Manual

90002929

07/2006

1.9.3 MLT 3 (gas purity measurement)

The necessary gas connections are marked analyzer specific (see section 5.3.and 5.4.3.1).

Different possibilities of internal layout and external tubing are shown in Fig. 1-30, depending on

instrument specific features.

Up to the internal pressure regulator the gas paths are designed as stainless steel tubings. Behind

the flow meter the gas paths are viton tubings.

All external fittings are swagelok

, stainless steel, 6/4 mm, 1/8 " or 1/4 ".

Fig. 1-30a: MLT 3 (gas purity measurement), gas path layout

(3 measuring channels with solenoid valve block option)

front side

rear side

1/8"

1/16"

safety dust filter

threated plug 1/8"

6 mm

SS capillary

SS tubing

tubing

Viton tubing

6 mm

Viton tubing

tube piece

Viton tubing

analysis cell

PO2

Viton tubing

span gas

zero gas

sample gas

pressure

sensor

gas outlet

1/8" 1/8"

INTERNAL GAS PATHS MLT 3 (GAS PURITY MEASUREMENT)