Electronic VKE1 volume flow controllers are suitable for constant and variable volume flows. They are maintenance-free, independent of position and can be installed in supply air as well as exhaust air of ventilation systems.
An innovative measurement principle allows the calculation of the volume flow rate and regulation from the differential pressure and the angular position of the damper blade. An efficiency signal for energy saving optimisation of the operating pressure of the system is calculated simultaneously.
At all pressures the measurement method enables in the volume flow ranges Vmin until Vmax of minimum 1 : 6 the high control precision of only ±5 % until ±15 % deviation from the reference volume flow.
The operating modes "constant", "variable" and "4-point" are possible in addition to the overriding controls, "open" and "closed". The operating mode "variable" is possible in the operation modes 0 – 10 V, 2 – 10 V and 2 – 8 V.
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