Seven Sensor Irradiance Sensor With 4-20mA Output 3S-IS-T-I
Seven Sensor 3S-IS-T-I is a high-precision irradiance sensor designed for professional solar PV monitoring and performance testing. It measures how much solar energy reaches your panels, helping you track system efficiency, identify energy losses, and optimize performance.
Since we process the analog input from the PV cell through a microprocessor, we are able to provide a temperature compensated irradiance value.
Built with a monocrystalline silicon reference cell and a PT1000 temperature sensor, it provides stable, real-world readings that reflect actual PV module behavior.
Each unit is factory-calibrated, fully assembled, and shipped with a mounting bracket and weather-resistant cable for easy installation
Why Choose the SEVEN Irradiance Sensor with Analog Output?
- Trusted accuracy: IEC 61724-1 Class A compliance with uncertainty ≤2%, calibrated as per IEC 60904-2 standards.
- Fast results: Response time of one second for real-time decision making. It can be reduced to 500 milliseconds upon request.
- Built to last: A UV-protected IP54 aluminum housing with optional IP65/IP68 ensures reliable operation in demanding outdoor environments.
- Quick setup: Plug-and-run design means fewer installation errors and faster commissioning. Supplied with mounting bracket and cable. Easy integration with any Analog-compatible PLC, SCADA, or datalogger.
- Cost-Effective: With its reliable performance and long lifespan, this sensor provides excellent value for money, reducing the need for frequent replacements and minimizing maintenance costs.
Product Details
Deskripsi
TECHNICAL SPECIFICATIONS OF IRRADIANCE SENSOR WITH 4-20MA OUTPUT
| Item Code | 3S-IS-T-I |
| Reference Cell | Monocrystalline Silicon (31 mm x 31 mm) |
| Current Shunt | High precision shunt resistor directly soldered to the terminals of the cell |
| Irradiance Range | 0 – 1500 W/m² |
| Uncertainty | ≤2%, as per IEC61724-1 standard Class A |
| Resolution | 0.1 W/m² ≤ 1W/m²; as per IEC61724-1 standard Class A |
| Response Time | 1 sec. less than 3 sec; as per IEC61724-1 standard Class A |
| Drift | Very small drift of <0.3%/ year |
| Field of View | Larger than 160° as per IEC61724-1 standard Class A |
| Tilt-Azimuthal Angle | 0°- 0° , ≤ 1°; as per IEC61724-1 standard Class A |
| Output Rate | 1/s |
| Data Output | Analog 4-20 mA |
| Power Supply | 12 to 30 V DC |
| Power Consumption | 50 mA max @24 VDC |
| Electrical Connection | 3 m LIYYC11Y PUR Cable, UV and Weather Resistant |
| Cell Temperature Sensor Type | PT1000 Class A as per EN 60751 |
| Operating Temperature Range | -40°C to +85°C |
| Operating Humidity Range | 0 to 100 % |
| Box Dimensions | 140 mm x 110 mm x 42 mm (W x L x H) |
| Weight | 0.3 kg |
| IP Rating | IP54 (IP65, IP68 options) |
| Sensor Housing Material | Aluminum |
| Compliant Standard | IEC 61724-1:2021 and IEC 60904 |
| Calibration | Each sensor is calibrated under Class AAA Sun Simulator as per IEC 60904-2 and IEC 60904-4 by using a reference cell calibrated by ISFH-Germany |
| Test | The test is carried under natural sunlight by using a calibrated reference cell from Fraunhofer ISE, Germany |
What Does an Irradiance Sensor Do?
An irradiance sensor tells you exactly how much sunlight is reaching your solar panels. This measurement — expressed in W/m² — is essential for comparing expected vs. actual system performance, calculating efficiency, and detecting potential issues like dirt, shading, or misalignment.
By combining a monocrystalline reference cell with temperature compensation, the 3S-IS-T-I delivers accurate, real-world data that you can rely on in all weather conditions.
