Ptu303 For General Use - Vaisala PTU300 User Manual

USER'S GUIDE____________________________________________________________________
NOTE
44 __________________________________________________________________ M210796EN-F
Please do not attach a heated probe (PTU307) to metal structures to
avoid condensation problems caused by heat conduction along the metal.
If the process temperature is much higher than that of the environment,
the whole probe and preferably plenty of cable must be inside the
process. This prevents measuring inaccuracy caused by heat conduction
along the cable.
When mounted on the side of a duct or channel, the probe must be
inserted from the side of the duct. If this is not possible and the probe
must be inserted from the top, the point of entry must be carefully
insulated.
For Vaisala probe installation kits and some installation examples see
Appendix A on page 195.

PTU303 for General Use

The PTU303 is a small size (d=12mm) probe for general use, up to
+80 °C (+176 °F). The probe is suitable for weather stations,
environmental compensations, laser interferometers and test benches. It
is suitable for ducts and channels with the installation kit available from
Vaisala.
The PTU303 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.