Humidity of process air exiting from the hood

Vaisala products don't measure the humidity of the paper mass directly, but paper mills use the hood air measurement to monitor the drying process indirectly, and for avoiding excess humidity in the hood. This measurement is especially demanding if there is a risk of condensation. Vaisala provides fixed humidity transmitters for all different dryer types, and also hand-held meters for spot-checking and verifying the operation of the fixed instruments.

 

Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT330

Top-of-the-line model for demanding industrial applications. A large numerical and graphical display. A fully configurable transmitter. Optional data logging and (W)LAN interface.

Vaisala DRYCAP® Dewpoint Transmitters DMT345 and DMT346

Constructed for humidity measurement in industrial drying applications with particularly high temperatures. As the probes are designed to be positioned directly in hot processes, there is no need for sampling systems and trace heating. Optional data logging and (W)LAN interface.