Vaisala HMT310 - Manual (Page 26)

USER'S GUIDE____________________________________________________________________
26 __________________________________________________________________ M210619EN-D
The HMT313 provides for two measuring range options. The first probe
version is equipped with a flexible cable and can be used when
measuring in environments up to 80 ºC. The second version is suitable
for measuring in environments up to 120 ºC.
See Appendix A on page 81 for the following probe installation kits for
HMT313 and installation examples:
- Duct mounting kit
- Cable gland
HMT314 for Pressurized Spaces
HMT314 probe is for humidity measurements in pressurized rooms and
industrial processes. The probe is provided with a nut, a fitting screw and
a sealing washer. Keep the fitting screw and nut in place on the body of
the probe during handling to prevent damage to the highly polished
surface of the probe. Follow the instructions below to achieve a leak-tight
assembly:
1. Remove the fitting screw from the nut and the probe.
2. Attach the fitting screw to the chamber wall with a sealing washer.
Tighten the fitting screw into the threaded sleeve with a torque
spanner. The tightening torque is 150 ± 10 Nm (110 ± 7 ft-lbs).
3. Insert the body of the probe into the fitting screw and attach the nut
manually to the fitting screw so that the connection feels tight.
4. Mark both the fitting screw and the nut hex.
0507-040
Figure 8 HMT314 Installation