Indepths
Details
LITEMETER CURRENT PRO IS AN ANALOG PHOTOVOLTAIC PYRANOMETER (OR IRRADIANCE SENSOR)
It is equipped with a monocrystalline silicon cell for high efficiency, and temperature compensated output. Manufacturing and Calibrations are done following the IEC 61215, IEC 60904-2; 60904-4; 60904-10 regulations.
This irradiance sensor is the laminated glass version of the Litemeter Current sensor. The cell is laminated with a high performance anti-reflective glass designed for PV applications for photovoltaic modules and E.V.A.
The current output 4-20mA allows the analog signal to remain unchanged in cases whereas the distance between the sensor and the control unit is 10m and more, or in disturbed areas. Distance up to 20-35m are attainable if there’s no signal interference.
Common uses
Although it is usually employed in smaller PV systems, thanks to its high EMC immunity, Litemeter Current Pro can also be used in larger photovoltaic systems.
Calibration
Each Litemeter LM2-420 PRO is calibrated for comparison with our PV Reference Cell calibrated periodically by the Dakks accredited ISFH Institute and a HP34410A Multimeter.
Photovoltaic Sensors Comparison Table
|
Sensor Model |
Output |
Added Feature |
Temperature Compensation |
Precision IEC 61724-1 |
Module Temperature Accessories |
Recommended PV Plant Size |
Spectral Response |
|
Sunmeter 2 LED |
Digital Modbus RS485 Including Sunspec protocol |
LED |
Yes |
CLASS A |
Temmeter |
> 500 KW |
300 – 1100 nm |
|
Sunmeter Counter |
Digital Modbus RS485 Including Sunspec protocol |
LED |
Yes |
CLASS A |
Temmeter |
> 500 KW |
300 – 1100 nm |
|
Litemeter Digital |
Digital Modbus RS485 |
No |
CLASS B |
Only internal temperature sensor |
30 – 500 KW |
300 – 1100 nm |
|
|
Litemeter Current |
4-20 mA |
Yes |
CLASS A |
100 – 1000 KW |
300 – 1100 nm |
Specifications
- Product:
- LM2-420 PRO – Solar irradiance sensor with monocrystalline silicon cell (photovoltaic pyranometer)
- Reference Standards:
- IEC 60904-2
- IEC 60904-4
- IEC 60904-10
- IEC 61724-1; 2021
- Output:
- Analog
- Input Range:
- Irradiance: 0 ÷ 1600 W/m² (IEC EN 61724-1 compliant)
- Output Signal:
- Current: 4 ÷ 20 mA (max output: 25 mA)
- Output Precision:
- Irradiance: ± 3%
- Working Temperature:
- -25 ÷ +80°C
- Response Time:
- < 100 milliseconds
- Sensor Type:
- Irradiance sensor
- Supply:
- External current loop: 9 ÷ 30 V DC
- Encapsulant:
- Glass + E.V.A. + Polyester
- Cable:
- 50 cm, UV and high temperature resistant
- Connectors:
- Female 3 pin (IP67 code)
- Dimensions:
- 98 x 55 x 25 mm without bracket
- IP Code:
- IP 65
Compatibility
Our devices are engineered with high precision and reliability, designed to seamlessly integrate with a wide range of photovoltaic systems and installations. We recommend consulting the compatibility table to ensure that your chosen sensor is fully compatible with your specific configuration.
Indephts
Possible combinations
This table outlines the various configurations and their corresponding applications, helping you quickly identify the best solution for your system.
Downloads
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