SP-212-SS: Amplified 0-2.5 Volt Pyranometer

The SP-212 is an amplified, analog sensor with a 0 to 2.5 V output. The sensor incorporates a silicon-cell photodiode with a rugged, self-cleaning sensor housing design.

  • Product Name: Amplified 0-2.5 Volt Pyranometer
  • Item No.:SP-212-SS
  • Manufacturers:Apogee
  • Country of Origin:USA

The SP-212 is an amplified, analog sensor with a 0 to 2.5 V output. The sensor incorporates a silicon-cell photodiode with a rugged, self-cleaning sensor housing design. Typical applications include shortwave radiation measurement in agricultural, ecological, and hydrological weather networks. Sensors are also used to optimize photovoltaic systems. Sensor includes IP67 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.

Power Supply    3.3 to 24 V DC;current draw 10 μA

Sensitivity    2 mV per W mˉ²

Calibration Factor    0.5 W mˉ² per mV (reciprocal of sensitivity)

Calibration Uncertainty    ± 5 %

Calibrated Output Range    0 to 2.5 V

Measurement Repeatability    Less than 1 %

Non-stability (Long-term Drift)    Less than 2 % per year

Non-linearity    Less than 1 % (up to 1250 W mˉ², maximum radiation measurement is 1250 W mˉ²)

Response Time    Less than 1 ms

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 ± 0.04 % 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    24 mm diameter, 28 mm heightMass90 g (with 5 m of lead wire)

Warranty    4 years against defects in materials and workmanship