Accurate control of HVAC

9th March 2016
Posted By : Joe Bush
Accurate control of HVAC

Designed for stable measurement of air velocity in ventilation ducts, the new EE650 air velocity transmitter from E+E Elektronik features selectable measuring ranges 0-10/15/20m/s (0-2,000/3,000/4,000ft/min) and high accuracy. It is also well suited for all common HVAC applications. The new E+E VTQ flow sensor element of EE650 operates on the thermal anemometer principle, is robust and insensitive to pollution.

Thanks to the design and the flow profile of the VTQ flow sensor element manufactured by E+E in thin-film technology, EE650 features resistance to contamination. The sensor element also feautres high mechanical stability realised through transfer moulding technology. The long term stability and the wear-free thermal measuring principle minimise the EE650 maintenance demand and ownership costs.

The IP65 / NEMA 4 enclosure protects the electronics against pollution. Due to its design, the EE650 can be easily installed and commissioned. The mounting flange facilitates precise positioning of the probe in the air stream. The duct version can also be mounted directly onto the ventilation duct. With the remote probe version, the sensing probe can be installed up to ten metres away from the electronics.

The measuring range, the output signal (4-20mA or 0-10V) and the response time can be selected with jumpers on the electronics board. The maintenance is simplified by a digital interface which allows for EE650 to be adjusted by the user.


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