SP-214-SS Amplified 4-20 Milliamp 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 4-20 Milliamp Pyranometer
  • Item No.:SP-214-SS
  • Manufacturers:Apogee
  • Country of Origin:USA

The SP-214 is an amplified, analog sensor with a 4 to 20 mA 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    7 to 24 V DC, maximum current draw of 22 mA (2 mA quiescent current draw)

Sensitivity    0.008 mA per W mˉ²

Calibration Factor    125 W mˉ² per mA (reciprocal of sensitivity) with an offset of 4 mA

Calibration Uncertainty    ± 5 %

Calibrated Output Range    4 to 20 mA

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, maximum radiation measurement is 2000 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 height

Cable    5 m of shielded, twisted-pair wire with TPR jacket (high water resistance, high UV stability, flexibility in cold conditions), additional cable available

Mass    140 g (with 5 m of lead wire)

Warranty    4 years against defects in materials and workmanship