Pyranometer Sensors

Models 7241C and 7241M

  • Overview

    Unidata has a range of radiation sensors which can be directly connected to any IP Datalogger and 7001D Prologger or via a Model 6107B Isolated Input Amplifier Module to a Model 6004D Starlogger. Mostly widely used pyranometer sensor is listed below. Other types of radiation sensors are available on request.

    Pyranometer Sensor – Solar Energy Model 7241C
    Apogee Instruments pyranometer represent the next generation in pyranometer design maximizing accuracy, reliability and durability.

    Featuring a silicon-cell photodiode with excellent cosine response, this pyranometer measure total solar radiation to within ±5% at a fraction of the price of black-body pyranometers, and at a far lower price-point than most other photodiode pyranometers on the market due to advancements in manufacturing.
    SP-212 is a fully potted, domed-shaped head making the sensor fully weatherproof, self-cleaning, and impervious to thermal based accuracy fluctuations.

    To ensure accuracy, each Apogee pyranometer is carefully pre-calibrated in controlled conditions and traceable to ISO class reference standards so your sensor is ready to go right out of the box.

    Radiation Sensor Mounting Assembly Model 7241M
    This mounting assembly consists of a leveling unit fitted with a 30mm diameter bulls eye, a mounting arm and mounting hardware for poles of a maximum of 60mm diameter. Sensors must be optically leveled for repeat measurements.

  • Specifications

    Power supply: 5-24VDC with a nominal current draw of 300uA
    Sensitivity: 2.0mV per W m-2
    Calibration Factor (reciprocal of sensitivity): 0.5 W m-2 per mV
    Measurement repeatability: <1%
    Long-term drift: <2% per year
    Field of View: 180Deg
    Spectral Range: 360nm to 1120nm
    Directional (Cosine) Response: +/-5% at 75Deg zenith angle
    Operating environment: -40 to 70Deg C, 0-100% relative humidity, can be submerged in water up to depths of 30m
    Dimensions: 24mm diametar and 27.5mm height
    Weigh: 90g (with 5m of lead wire)
    Cable: 5m of shielded twisted pair wire

  • Ordering Information

    7241C-APyranometer Sensor High Output with 5m of Cable
    7241MRadiation sensor mounting assembly

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  • Documents

    7241C Pyranometer Sensor
    7241M Radiation Sensor Mounting

    Application Notes
    Not applicable

    Not applicable

environmental monitoring pyranometer sensor mounting assembly 7241M