Vaisala HUMICAP DMT132, User Manual

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3.5.2 DMT242SC2 Sampling Cell with Swagelok Connectors
The DMT242SC2 is similar to DMT242SC, but connections are made easy. The sampling cell
includes welded Swagelok connectors at both the inlet and outlet that fit directly to 1/4"
tubing.
To fit 6 mm tubing to the connectors, you can use an adapter such as Swagelok Reducer
SS-6M0-R-4 (not supplied by Vaisala).
DMT242SC2 is the suitable choice in, for example, plastics drying systems, where the
measurement is made by tapping off the dryer system and bringing a small air stream to the
sensor. The Swagelok connectors of DMT242SC2 easily connect to a cooling coil or tubing,
providing the essential function of cooling the dry air to ambient temperature before it
reaches the sensor.
3
2
1
1
2
4
Figure 16 Sampling Cells DMT242SC2 (Left) and DMT242SC (Right)
1 Male pipe welded connector Swagelok 1/4"
2 G1/2"
3 G1/4"
4 G3/8"
3.5.3 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. Use a
screwdriver to open and close the leak screw. The leak screw should be 1/2 turn open. You
can verify this by first closing the leak screw, then turning it 1/2 turn to open it. The air
coming out will make a barely audible little hiss. You can feel it lightly when placing a hand
in front of the air stream.
DMT132 User Guide M211289EN-B
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