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 IP68 marine-grade stainless-steel cable connector 30 cm from head to simplify sensor removal and replacement for maintenance and recalibration.
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Current Stock:
ISO 9060:2018
Class C (previously known as second class)
Power Supply
7 to 24 V DC
Current Draw
22 mA maximum; 2 mA quiescent
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, 33 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 (with 5 m of cable)
140 g
Warranty
4 years against defects in materials and workmanship
