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measurement of the water/water-glycol heat transfer fluid.
A contact sensor (e.g. reed relay) is used to send a pulse to the
solar controller (e.g. Suntana / Suntana 2 / TR 0603 / TR 0704)
every time a defined quantity of fluid passes through the system
(e. g. 10 litre = 1 pulse). At the same time, the controller
determines the temperature difference between the supply and
return temperatures and then calculates the quantity of heat
generated, by using this difference, the flow rate and the specific
material characteristics of the heat transfer fluid. The heat
volume calculated is then finally stored in the controller and
displayed as kWh.
· Nominal flow rate Qn: 2.5 m³/h
· Pulse rate: 10 l/Imp.
· Maximum operating temperature: 120 °C
· Operating pressure: up to 10 bar according
· Hard-metal bearings up to 120 °C
· Contact loading: 24 V (without series resistor)
· Cable length: 3 m
dry-running bearings for the through-flow paddle
counter, it uses magnetic coupling and has been
conceived according to the latest technology.
To avoid disturbances caused by unclean water,
only the paddle wheel sits in the fluid path.
The roller counter is evacuated and sealed against
dust and water to avoid cracking the glass pane
under extreme temperature fluctuations.
The counter can be rotated for easier reading.
essur