Operating Principle - Danfoss SonoRead 868 Mode D'emploi

User Manual SonoRead 868 Wireless Radio Receiver for meter reading
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Operating Principle

The SonoRead 868 is a radio receiver for wireless M-Bus consumption meters (electricity, gas, water, heat
and others). The received radio telegrams of the consumption meters are stored into an internal memory
and are immediately transmitted to a smartphone or tablet using its Bluetooth interface, if a Bluetooth
connection is established. If there is no Bluetooth connection the SonoRead 868 collects all radio telegrams
(up to 2000) and transmits them at once as soon as the Bluetooth connection is reestablished.
Due to its built-in rechargeable lithium ion battery the SonoRead 868 has got an autonomy of approximate-
ly 20 hours (while not using the external serial interface). Recharging takes about 4 to 5 hours depending
on the charge state of the battery.
The antenna interface is a standard 50 Ohm SMA connector which can be connected to any suitable anten-
na.
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