The OneMeter device¶
The most important functions of the device include:
- periodic (15-minute) readings from electricity meters,
- communication using IEC62056-21, SML protocols and a quasi-protocol which allows to count blinks of meter LED,
- local storage for up to 1 year of readings with the option of data synchronization,
- broadcast the current readings to deliver data to the cloud a few seconds after the reading is done (using the OneMeter Gateway or Gateway Mode),
- continuous, several months of battery operation.
The current list can be found here.
Intensive work is underway to ensure compatibility with the DLMS protocol and counting the flashes of the meter's diode to show current electricity demand.
We expect to deliver these functions by the end of August 2020.
The housing is made of polycarbonate (PC). Its color may vary from version to version. The upper part has a concave OneMeter logo. The device is powered by a CR2032 (3v) lithium battery. Do not recharge the battery.
The lens is made of plastic.
The magnet is made of rare earth N35. It's engraved with:
- Horizontal OneMeter logo
- Model number
- Serial number (unique to each device)
- Protocol used for communication with the meter (e.g. IEC 62056-21)
- Data matrix code for production purposes
- Degree of protection (IP40)
- Battery to be used
- The CE mark indicates conformity with European Union directives with the number of the notified body within the scope of Directive 1999/5/EC
- The country of manufacture (OneMeter devices are manufactured in Poland)
The magnet is polarized according to IEC 62056-21 protocol documentation. Its main function is to mount the device on the optical port of the energy consumption meter and it does not affect the operation of the meter in any way.
In some cases the manufacturer of the meter may have mounted a polarized magnet in the optical port instead of a metal plate, which does not comply with the above mentioned documentation. If such a situation takes place at your place, please contact our Customer Service Department.
The PCBA (Printed Circuit Board Assembly) consists of a printed circuit board and soldered components including processor, Bluetooth radio module and flash memory for data storage. It is shielded by a magnet, the housing and lens. It can be black or green.
The current specification of the device can be found on the OneMeter website.
!(../assets/images/onemeter-explode.png 'Parts of the OneMeter device')