Vaisala Drycap DMT152, User Manual

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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.
When using the DSC74, seal the threads of the quick connector or thread adapter carefully
with PTFE thread seal tape. Tighten with an open-end wrench.
4
3
1
2
5
Figure 9 DSC74 Sampling Cell with Accessories
1 Thread adapter type G3/8" - G1/2"
2 Thread adapter type G3/8" - G1/4"
3 Quick connector
4 Leak screw
5 Sampling cell body (DMT242SC)
4.6.4 DSC74B Two-Pressure Sampling Cell
The DSC74B and DSC74C sampling cells are enhanced versions of the DSC74. The body is
designed in a way that it is possible to measure at both system pressure and atmospheric
pressure.
Chapter 4 – Installation
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