SI-521-SS: Research-Grade Modbus Digital Output Narrow Field of View Infrared Radiometer Sensor

$789.00

The SI-521 has a Modbus RS-232, RS-485 digital output and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. The sensor has a 18° half-angle field of view. Typical applications include plant canopy temperature measurement for use in plant water status estimation, road surface temperature measurement of determination of icing conditions, and terrestrial surface (soil, vegetation, water, snow) temperature measurement in energy balance studies. Sensor includes IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE INFRARED RADIOMETERS >> click here

Full Description
Where to Buy

The SI-521 has a Modbus RS-232, RS-485 digital output and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. The sensor has a 18° half-angle field of view. Typical applications include plant canopy temperature measurement for use in plant water status estimation, road surface temperature measurement of determination of icing conditions, and terrestrial surface (soil, vegetation, water, snow) temperature measurement in energy balance studies. Sensor includes IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.

 

FOR MORE PRODUCT INFORMATION, CHECK OUT THESE LINKS

• Product Manual

• Specification Sheet

• Technical Drawing

 

MORE INFORMATION ON APOGEE INFRARED RADIOMETERS >> click here

Current Stock:
Input Voltage Requirement 5.5 to 24 V DC Current Draw RS-232 quiescent 36.87 mA, active 37.06 mA; RS-485 quiescent 37.37, active 42.30 mA Calibration Uncertainty (-20 to 65 C), when target and detector temperature are within 20 C 0.2 C Calibration Uncertainty (-40 to 80 C), when target and detector temperate are different by more than 20 C 0.5 C Measurement Repeatability Less than 0.05 C Stability (Long-term Drift) Less than 2 % change in slope per year when germanium filter is maintained in a clean condition Field of View 18° half angle Spectral Range 8 to 14 µm; atmospheric window Operating Environment -45 to 80 C; 0 to 100 % relative humidity (non-condensing) Dimensions 23 mm diameter; 60 mm length Mass (with 5 m of cable) 190 g Cable 5 m of two conductor, shielded, twisted-pair wire; TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires; stainless steel (316), M8 connector located 25 cm from sensor head Warranty 4 years against defects in materials and workmanship