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, 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 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
30.5 mm diameter, 37 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
