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LI-12 Wireless solar energy information
display. Rain or shine, the LI-12 shows exactly how many Watts your Solar Power system is generating. The LI-12 also measures how much kWh electrical energy has been delivered in total by your system. This tells you how much you have saved on your energy bill. Furthermore you can read from the display how much CO2 gas emission was avoided due to the energy production of your solar cells.
Large displays. The large displays can be produced in virtually any size. There are two standard sizes. The largest standard display measures 50 x 70 cm. The smallest standard display in this shape measures approx. 19 x 28 cm. 50 x 70 cm display for PV systems
The displays can also show a fixed sequence, simulating the operation of the system during a day. A clock is added, showing the hours of the day. The text on the poster explains what is shown. There is no need to connect an E-meter to this display. The delivery includes the display, a manual, a measuring unit and all required plugs (Euro style). The displays have a cable of 5 m. The displays are connected to the measuring unit. The E-meter is connected to the measuring unit. The measuring unit must be connected to the mains supply (230 VAC 50 / 60 Hz). The lay-out of the display is flexible. The displays can be placed at other places and the artwork can be changed. The picture above shows a proprietary design. See 'Photos' for detailed pictures of several lay-outs. Small (19x28 cm) display for PV systems The delivery includes a display, manual, connection cable and plugs and a measuring unit. The measuring unit is connected to the PV inverter on one side and to the grid on the other side. The display is connected to the measuring unit with a cable. A 15 m. cable is included in the delivery. There is a wireless version of this display as well.
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These displays show the delivered power of PV systems in W or kW. The total
energy is shown in kWh or MWh. The power is shown only when it exceeds a certain
limit. The units on the display (W / kW and kWh / MWh) are determined when the
display is ordered. They can not be changed afterwards. The displays must be
connected to an electricity meter with a pulse output, that measures the yield
of the PV system. The number of pulses per kWh is set on the display so that the
correct value can be shown. There is a fixed range of values for the number of
pulses generated by the E-meter. If a meter is used that supplies a number of
pulses that is not available as a setting, this factor can be set at production
time. However, it can not be changed afterwards.
These displays show the delivered power of the PV system in W. The total
delivered energy is shown in kWh.The displays are delivered with a measuring
unit that measures the yield of the PV system. The measuring unit is suited for
systems up to 3.5 kW.
For larger systems, an external electricity meter must be used. The number of
pulses per kWh of the external meter must be specified when the display is
ordered. It can not be changed afterwards.