SN-500-SS: Net Radiometer

$2,695.00

Apogee Instruments' new four-component net radiometer provides individual measurement of net radiation components. The sensor features an SDI-12 output, eliminating the need for multiple analog channels to measure the individual components of net radiation. The net radiometer comes as a complete package that includes net radiometer, mounting rod, pigtail lead cable for datalogger interface, and carrying case.

Onboard A/D Conversion and SDI-12 Output
Apogee net radiometers feature onboard A/D conversion and SDI-12 output to eliminate the requirement of multiple analog datalogger channels.

Four-component Net Radiometer
An upward-looking and downward-looking pyranometer, and an upward-looking and downward-looking pyrgeometer provide separate measurements of the four components of net radiation.

Individually Heated Radiometers
Each radiometer includes an individual heater to increase accuracy by minimizing the influence of dew/frost on the filter.

Compact and Light Weight
Designed to be light weight and small in size to facilitate easy mounting.

Four-component Net Radiometer from Apogee Instruments
Full Description
Where to Buy

Apogee Instruments' new four-component net radiometer provides individual measurement of net radiation components. The sensor features an SDI-12 output, eliminating the need for multiple analog channels to measure the individual components of net radiation. The net radiometer comes as a complete package that includes net radiometer, mounting rod, pigtail lead cable for datalogger interface, and carrying case.

Onboard A/D Conversion and SDI-12 Output
Apogee net radiometers feature onboard A/D conversion and SDI-12 output to eliminate the requirement of multiple analog datalogger channels.

Four-component Net Radiometer
An upward-looking and downward-looking pyranometer, and an upward-looking and downward-looking pyrgeometer provide separate measurements of the four components of net radiation.

Individually Heated Radiometers
Each radiometer includes an individual heater to increase accuracy by minimizing the influence of dew/frost on the filter.

Compact and Light Weight
Designed to be light weight and small in size to facilitate easy mounting.

Four-component Net Radiometer from Apogee Instruments

We are currently looking for case studies for this product. If you would like to share your application of this product, please click here.

Current Stock:
SN-500 Specifications Input Voltage Range 5.5 to 16 V DC (heaters are optimized to run at 12 V DC) Current Draw (12 V DC Supply Voltage) Heaters on, communication enabled: 63 mA; Heaters off, communication enabled: 1.5 mA; Heaters off, communication disabled: 0.6 mA Response Time (using SDI-12 Protocol) 1 s (SDI-12 data transfer rate; detector response times are 0.5 s) Heaters (sensors individually heated) 62 mA current drain and 740 mW power requirement at 12 V DC Operating Environment -50 to 80 C; 0 to 100 % relative humidity Dimensions 116 mm length, 45 mm width, 66 mm height Mass 320 g (with mounting rod and 5 m of lead wire) Cable M8 connector (IP68 rating) to interface to sensor housing, 5 m of four conductor shielded, twisted-pair wire in a santoprene rubber jacket with pigtail lead wires Pyrgeometer Specifications Sensitivity 0.12 mV per W mˉ² (variable from sensor to sensor, typical value listed) Calibration Factor (Reciprocal of Sensitivity) 8.5 W mˉ² (variable from sensor to sensor, typical value listed) Calibration Uncertainty ± 5 % Output Ranges -24 to 24 mV Measurement Range -200 to 200 W mˉ² (net longwave irradiance) Measurement Repeatability Less than 1 % Long-term Drift Less than 2 % change in sensitivity per year Non-linearity Less than 1 % Detector Response Time Less than 0.5 s Field of View 150 ˚ Spectral Range 5 to 30 µm Temperature Response Less than 5 % from -15 to 45 C Window Heating Offset Less than 10 W mˉ² Zero Offset B Less than 5 W mˉ² Tilt Error Less than 0.5 % Uncertainty in Daily Total ± 5 % Temperature Sensor 30 kΩ thermistor, ± 1 C tolerance at 25 C Output from Thermistor 0 to 2500 mV (typical, other voltages can be used) Input Voltage Requirement for Thermistor 2500 mV excitation (typical, other voltages can be used) Pyranometer Specifications Sensitivity 0.057 mV per W mˉ² (upward-looking); 0.15 mV per W mˉ² (downward-looking), (variable from sensor to sensor, typical values listed) Calibration Factor (Reciprocal of Sensitivity) 17.5 W mˉ² per mV (upward-looking); 6.7 W mˉ² per mV (downward-looking) Calibration Uncertainty ± 5 % Output Range 0 to 114 mV (upward-looking); 0 to 300 mV (downward-looking) Measurement Range 0 to 2000 W mˉ² (net shortwave irradiance) Measurement Repeatability Less than 1 % Long-term Drift Less than 2 % per year Non-linearity Less than 1 % Detector Response Time 0.5 s Field of View 180 ˚ (upward-looking); 150 ˚ (downward-looking) Spectral Range 385 nm to 2105 nm (upward-looking); 295 nm to 2685 nm (downward-looking) Directional (Cosine) Response Less than 30 W mˉ² at 80 ˚ solar zenith (upward-looking); Less than 20 % for angles between 0 and 60 ˚ (downward-looking) Temperature Response Less than 5 % from -15 to 45 C Zero Offset A Less than 5 W mˉ²; Less than 10 W mˉ² (heated) Zero Offset B Less than 5 W mˉ² Uncertainty in Daily Total Less than 5 %