SP-421-SS SDI-12 Digital Output Silicon-cell Pyranometer

$323.00

The SP-421 is a digital sensor with SDI-12 communication protocol. The sensor incorporates a silicon-cell photodiode with a rugged, self-cleaning sensor housing design, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks. Sensors are also used to optimize photovoltaic systems. Sensor includes IP68 marine-grade stainless-steel cable connector 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 PYRANOMETERS >> click here

Full Description
Where to Buy

The SP-421 is a digital sensor with SDI-12 communication protocol. The sensor incorporates a silicon-cell photodiode with a rugged, self-cleaning sensor housing design, and high-quality cable terminating in pre-tinned pigtail leads for easy connection to dataloggers and controllers. Typical applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks. Sensors are also used to optimize photovoltaic systems. Sensor includes IP68 marine-grade stainless-steel cable connector 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 PYRANOMETERS >> click here

Current Stock:
ISO 9060:2018 Class C (previously known as second class) Input Voltage Requirement 5.5 to 24 V DC Current Drain 1.3 mA (quiescent), 1.8 mA (active) Output Range 0 to 2000 W mˉ² Calibration Uncertainty ± 5 % Measurement Repeatability Less than 1 % Non-stability (Long-term Drift) Less than 2 % per year Non-linearity Less than 1 % (up to 2000 W mˉ²) Response Time 0.6 s, time for detector signal to reach 95 % following a step change, fastest data transmission rate for SDI-12 circuitry is 1 s Field of View 180˚ Spectral Range 360 to 1120 nm (wavelengths where response is 10 % of maximum) Directional (Cosine) Response ± 5 % at 75˚ zenith angle Temperature Response 0.04 ± 0.4 % per C Operating Environment -40 to 70 C; 0 to 100 % relative humidity; can be submerged in water up to depths of 30 m Dimensions 30.5 mm diameter, 37 mm height Mass (with 5 m of cable) 140 g Cable 5 m of two conductor, shielded, twisted-pair wire, additional cable available in multiples of 5 m; TPR jacket (high water resistance, high UV stability, flexibility in cold conditions); pigtail lead wires Warranty 4 years against defects in materials and workmanship