FSP10-Pyranometers

Overview

The FSP10 Pyranometer is a shortwave solar radiation sensor designed for solar irradiance measurement applications. It complies with the latest ISO 9060 and WMO standards and meets the performance requirements of a Class A pyranometer. Its measurement accuracy is comparable to that of Kipp & Zonen secondary standard pyranometers.

The FSP10 operates in a fully passive mode, utilizing a thermopile sensor to generate an output voltage proportional to the incident solar radiation flux. Equipped with a dual-glass dome design, it effectively minimizes measurement errors—particularly thermal offsets—resulting in excellent measurement accuracy and long-term stability.

Key Features

Compliant with ISO 9060 and WMO standards
Fast response time ≤ 5 seconds
Low annual drift: < ±0.5% per year
CE and EMC certified
Class A certified
High daily solar irradiance measurement accuracy
Excellent cosine response

Applications

Accurate solar radiation monitoring in meteorological applications
Solar irradiance monitoring for photovoltaic (PV) and concentrated solar power (CSP) plants
Surface solar energy balance studies
Outdoor material weathering and performance testing
Solar radiation research in universities and research institutes
Environmental and climate monitoring projects

Specifications

Item number	Technical Data
Classification (ISO 9060 / WMO)	Class A
Response Time(95%)	5S
Zero Offset a (response to 200 W/m² thermal radiation)	< 10 W/m2
Zero Offset b (response to 5 K/h ambient temperature change):	<3 W/m2
Non-stability (long-term drift):	< +/- 0.5% change/year
Non-linearity (100 to 1000 W/m²)	< +/- 1 % (100 至 1000 W/m2)
Directional Response	< +/- 10 W/m2
Spectral Selectivity	+/-5% (305-2000 nm)
Temperature Response ( 50°C)	<+/-2% (-10 - +40°C )
Tilt Response	<+/-1%
Sensitivity	7-14 μV/Wm-2
Expected Output Voltage	natural solar radiation： -0.1 至 + 50 mV
Operating Temperature Range	-55 `+80 °C
Impedance	100 ~ 150Ω
Measurement Range	0-2000 W/m2
Spectral Range	305-2800 nm (50% transmission points)
Data Output Requirement	One differential voltage channel or single-ended voltage channel
Leveling System	Built-in spirit level and adjustable leveling feet
Desiccant	Silica gel desiccant
Calculation Method	U / E
Expected Accuracy for Daily Irradiance	+/- 2%
Cable Weight (with 5 m cable)	Net weight：0.9 kg；
Recommended Calibration Interval	Every 2 years
Ingress Protection Rating	IP67