Vaisala DPT146 - Manual (Page 31)

Chapter 4 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 29
DSC74C Two-Pressure Sampling Cell
with Coil
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 parts are:
- Sampling cell, thread G3/8"
- Connection part with a needle valve and an integrated leak screw
- Reducing Nipple (thread adapter), G3/8" - G1/2"
- Reducing Adapter (thread adapter), G3/8" - G1/4"
- Diffusion coil (for measurements in atmospheric pressure)
0510-034
Figure 17 Default Assembly of DSC74C
where
1 = Gas goes in. The coil can also be used here.
2 = Gas comes out
3 = Coil
4 = Valve