PTFE-coated absorbers instead of fragile dome
Overview
The NR-LITE2 is a rugged net radiometer that measures the energy balance between incoming short-wave and long-wave infrared radiation relative to surface-reflected short-wave and outgoing long-wave infrared radiation. It is directly connected to a Campbell Scientific datalogger and is widely used in agriculture and hydrology applications.
Read MoreBenefits and Features
- Compatible with most Campbell Scientific data loggers
- Integrated bubble level ensures proper installation
- Includes rod that deters birds from roosting on the radiometer
- PTFE-coated absorbers are weather resistant without using a fragile plastic dome
Images
Detailed Description
The NR-LITE2 includes two black conical absorbers—one facing upward and the other facing downward. The absorbers are coated in PTFE, making them resistant to weather without using a fragile plastic dome. Both absorbers are calibrated to an identical sensitivity coefficient.
The NR-LITE2 has a bubble level to ensure proper installation and a rod that deters birds from roosting on the sensor. It produces a millivolt signal that is measured directly by a Campbell Scientific datalogger.
Specifications
| Sensor | Two black conical absorbers—one facing upward and the other facing downward |
| Measurement Description | Measures incoming and outgoing short-wave and long-wave radiation |
| Spectral Range | 0.2 to 100 µm |
| Response Time | < 20 s (nominal) |
| Sensitivity | 10 µV W-1 m2 (nominal) |
| Output Range | ±25 mV |
| Measurement Range | ±2000 W m-2 |
| Operating Temperature Range | -40° to +80°C |
| Sensor Diameter | 8.0 cm (3.1 in.) |
| Support Arm Diameter | 1.6 cm (0.6 in.) |
| Support Arm Length | 80 cm (31.5 in.) |
| Sensor Weight | 200 g (7.0 oz) |
| Support Arm Weight | 635 g (23 oz) |
Compatibility
Please note: The following shows notable compatibility information. It is not a comprehensive list of all compatible products.
Dataloggers
| Product | Compatible | Note |
|---|---|---|
| CR1000 (retired) | ||
| CR1000X | ||
| CR300 | ||
| CR3000 (retired) | ||
| CR310 | ||
| CR350 | ||
| CR6 | ||
| CR800 (retired) | ||
| CR850 (retired) |
Additional Compatibility Information
Mounting
To avoid shading/reflections and to promote spatial averaging, the NR-LITE2 should be mounted at least 1.5 m above the ground or crop canopy and away from all obstructions or reflective surfaces that might adversely affect the measurement. Campbell Scientific recommends mounting the NR-LITE2 to a separate vertical pipe at least 25 ft away from other mounting structures. The 26120 Net Radiation Sensor Mounting Kit is used to mount the NR-LITE2 to a vertical pole or a horizontal crossarm, such as the CM202, CM203, CM204, or CM206.