3
2
1
1
2
4
Figure 11 Sampling Cells DMT242SC2 (left) and DMT242SC (right)
1
Male pipe welded connector Swagelok 1/4"
2
G1/2"
3
G1/4"
4
G3/8"
4.6.3 DSC74 Sampling Cell with Quick Connector and Leak
Screw
The DSC74 has been designed especially for compressed air lines. The sampling cell contains
an adjustable leak screw that allows keeping up the pipeline pressure at the sensor. The leak
screw is opened and closed with a screwdriver. The leak screw should be 1/2 turn open. This
can be verified by first closing the leak screw, then turning 1/2 turn to open it. Then the air
coming out will make a barely audible little hiss and it can be lightly felt when putting a hand
in front of the air stream.
Do not open the leak screw more than 1/2 turn to avoid reducing the pressure in
the sampling cell.
The DSC74 comes with a quick connector that fits to industry standard compressed air line
connectors (suitable for type D, Quick08, NIP08). This allows for easy installation and
detachment of the dew point transmitter without having to shut down the process. Alternative
ways to connect are through the two different thread adapters (G3/8" to G1/2" and G3/8" to
G1/4" ISO) that are supplied with each DSC74 unit.
Chapter 4 – Installation
29
Содержание DRYCAP DMT143
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