Instruction Manual
NR01 Table of Contents 
ii 
Figures 
1-1. Atmospheric Radiation as a Function of Wavelength ............................ 2 
2.2-1. The NR01 Four-Component Net Radiation Sensor............................. 4 
2.3-1. Spectral Response of the Pyranometer Compared to the Solar 
Spectrum.......................................................................................... 5 
2.4-1. Spectral Response of the Pyrgeometer Compared to the Atmospheric 
LW Spectrum................................................................................... 7 
3.4-1. Dimensions of the NR01 in mm ........................................................ 14 
4.1-1. NR01 with Reducer (P/N 21271) and Mounting Arm....................... 15 
4.4-1. Installation and Removal of Radiation Shields.................................. 20 
5-1. 4WPB100 Module ................................................................................ 21 
Tables 
2.3-1. Main Measurement Errors in the SW Signal....................................... 6 
2.4-2. Main Measurement Errors in the LW Signal....................................... 8 
2.5-1. Average Global Radiation Values at the Earth Surface....................... 9 
2.5-2. Expected SENSOR Outputs when Measuring with the NR01 ............ 9 
3.1-1. General Specifications of the NR01 .................................................. 11 
3.2-1. Specifications of SR01 ...................................................................... 12 
3.3-1. Specifications of IR01 ....................................................................... 13 
4.1-1. Recommendations for Installation of the NR01 ................................ 15 
4.2-1. Internal Electrical Diagram of the NR01........................................... 17 
4.3-1. Datalogger Connections for Differential Measurement, 
when using a 4WPB100................................................................. 18 
4.3-2. Datalogger Connections for Single-Ended Measurement, 
when using a 4WPB100................................................................. 18 
4.3-3. Pt-100 Temperature Sensor Connections to 4WPB100 and 
Datalogger...................................................................................... 18 
4.3-4. CR3000 and CR5000 Connections for Differential Measurement 
and using the Current Excitation to Measure the PT100 Sensor ... 19 
6.1-1. The NR01 Recommendations for Maintenance................................. 33 
6.2-1. Troubleshooting for the NR01........................................................... 34 










