RT1 Smart Roof Top Monitoring System
The rugged housing of RT1 simply fits to the corner of a PV panel and contains the digital electronics. It also houses a sensor that reliably measures the incoming plane of array solar irradiance. The plug-in temperature sensor is easily attached to the back of the panel. RT1 is the perfect solution for monitoring the efficiency of commercial rooftop PV installations.
- Irradiance
- 0 to 2000 W/m²
- Precision/resolution
- 1 W/m²
- Spectral range
- 400 to 1100 nm
Overview
In detail
Rooftop PV monitoring made easy
RT1 is a small, fully weatherproof duo-sensor that independently measures the incoming solar irradiance and the back panel temperature. Thanks to the included back panel temperature sensor you collect all the data you need to monitor the performance of your installation — all in digital Modbus format. Thanks to the unique design you can easily fix it to your PV panel without the need for any tools.
The RT1 rooftop sensor
The RT1 rooftop sensor outperforms reference cells, is very rugged, stable and reliable, and measures the real solar irradiation from dawn till dusk. It has a soiling resistant design for low maintenance, is extremely simple to mount on a corner of a PV panel, and can be easily removed for recalibration or service. It also fits on the side or top with a clamp-on adapter, and comes with a Kipp & Zonen calibration certificate.
Calibration and stability
RT1 is calibrated against a traceable reference pyranometer. Due to the stability of the design, recalibration is not needed for 2 years.
Reach out and say hi
Let us help. Tell us the site, the range you expect and what it has to talk to, and we’ll work out the right variant, cable and mounting — and quote it.
Specifications
Technical specifications
- Irradiance
- 0 to 2000 W/m²
- Precision/resolution
- 1 W/m²
- Spectral range
- 400 to 1100 nm
- Non-stability (change/year)
- < 1 %
- Non-linearity (0 to 1000 W/m²)
- < 1 %
- PV panel temperature
- -20 to +100 °C, ± 1 °C
- Calibration
- Against traceable reference pyranometer
- Signal connections
- 1 - RS-485 Modbus to host; 2 - PV panel temperature sensor
- Voltage range
- 5 to 30 VDC
- Power consumption maximum
- 60 mW
- Ambient operating temperature
Related
Often specified alongside
Weathertech
X-LAS MkII Scintillometer
- Path length
- 1 to 12 km
- Dimensions
- 1010 x 552 x 426 mm (with sunshield) 18,75 kg
- Wavelength
- 850 nm
- Range
- 0-100,000 µS/cm ±2%
Ready to specify?
Add the RT1 to your enquiry
Build a list, add your site notes, and an ESS engineer will quote the lot — cables, mounting and calibration included.
