LI200R
LI200R
Limited availabilityConfigurablePyranometer
Silicon cell pyranometer.
Pricing
Configuration
Sign in for option pricing- w/3m (10ft) per Cable w/Ferrules on Wires-3m
- w/5m (17ft) per Cable w/Ferrules on Wires-5m
- w/10m (33ft) per Cable w/Ferrules on Wires-10m
- w/15m (50ft) per Cable w/Ferrules on Wires-15m
Select a configuration to add to your quote
- Model:
- LI200R
- Item Number:
- 45192
- Warranty:
- 1 year
- Lead time:
- 14 days
Overview
The LI200R, manufactured by LI-COR, is a silicon pyranometer that accurately monitors sun plus sky radiation for solar, agricultural, meteorological, and hydrological applications. It uses a silicon photovoltaic detector mounted in a cosine-corrected head to measure solar radiation. A shunt resistor in the sensor’s cable converts the signal from microamps to millivolts, allowing this sensor to be measured directly by a Campbell Scientific data logger.
Key Advantages
Compatible with most Campbell Scientific data loggers
Technical Description
The LI200R measures incoming solar radiation with a silicon photovoltaic detector mounted in a cosine-corrected head. The detector outputs current; a shunt resistor in the sensor cable converts the signal from current to voltage, allowing the LI200R to be measured directly by Campbell Scientific data loggers.
The LI200R is calibrated against an Eppley Precision Spectral Pyranometer to accurately measure sun plus sky radiation. Campbell Scientific does not recommend using the LI200R under vegetation or artificial lights because it is calibrated for the daylight spectrum (400 to 1100 nm).
Benefits
- Calibrated against an Eppley precision spectral pyranometer (PSP) for the daylight spectrum (400 to 1100 nm)
- Uniform sensitivity up to 82° incident angle
- Cosine-corrected miniature head
Specifications
- Sensor
- Silicon photovoltaic detector mounted in a cosine-corrected head
- Measurement Description
- Measures sun plus sky radiation
- Spectral Range
- 400 to 1100 nm
- Calibration
- ±5% traceable to the U.S. National Institute of Standards Technology
(NIST)
- Sensitivity
- 0.13 kW m-2 mV-1
(typically)
- Linearity
- Maximum deviation of 1% up to 3000 W m-2
- Absolute Error in Natural Daylight
- ±5%
(maximum)
- Absolute Error in Natural Daylight
- ±3%
(typical)
- Shunt Resistor
- 100 Ω, 1%, 50 ppm
- Stability
- < ±2% change over a 1-year period
- Response Time
- < 1 μs
- Temperature Dependence
- ±0.15% per °C maximum
- Cosine Correction
- Cosine corrected up to 82° angle of incidence
- Operating Temperature Range
- -40° to +65°C
- Relative Humidity Range
- 0 to 100%
- Detector Description
- High-stability silicon photovoltaic
(blue enhanced)
- Sensor Housing Description
- Weatherproof anodized aluminum case with acrylic diffuser and stainless-steel hardware; O-ring seal on the removable base and cable assembly
- Diameter
- 2.36 cm
(0.93 in.)
- Height
- 3.63 cm
(1.43 in.)
- Weight
- 84 g
(2.96 oz)
