Vaisala HUMICAP DMT132, User Manual

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Figure 19 Removing the Leak Screw
3.5.4.1 DSC74C Two-Pressure Sampling Cell with Coil
The DSC74C with an outlet coil is designed for the most critical measurements at
atmospheric pressure. In the DSC74C, the coil is connected to the sampling cell outlet to
protect the sensor from ambient humidity disturbing the measurement. The coil can also be
used as a cooling coil for sampling from high temperature processes.
DSC74C consists of the following parts:
• Sampling cell, thread G3/8"
• Connection part with a needle valve and an integrated leak screw
• Reducing Nipple (thread adapter), G3/8" to G1/2"
• Reducing Adapter (thread adapter), G3/8" to G1/4"
• Diffusion coil (for measurements in atmospheric pressure)
Chapter 3 – Installation
25