240-MP-100 Handheld Pyranometer (Internal Sensor)
The 240-MP-100 Pyranometer has an integrated sensor on top of the handheld meter that displays and stores measurements in watts per square meter (W/m²). It is typically used to measure shortwave radiation in agricultural, ecological, and hydrological weather networks, as well as in solar panel arrays.
The 240-MP-100 Pyranometer has an integrated sensor on top of the handheld meter that displays and stores measurements in watts per square meter (W/m²). It is typically used to measure shortwave radiation in agricultural, ecological, and hydrological weather networks, as well as in solar panel arrays.
The meter has a sample and log mode and records an integrated daily total in megajoules per square meter per day (MJ/m²/d). In sample mode, the meter will record up to 99 manual measurements. In log mode, the meter turns on and off every 30 seconds to take a measurement. Every 30 minutes, the meter averages the previous 30 measurements and stores the average value. The meter can store up to 99 averaged values; once full, it will start to overwrite the oldest measurement with new ones. An integrated daily total will be recorded from the 48 averaged measurements (covering a 24-hour period).
The measurements that have been taken can be reviewed in two ways: on the LCD display or by downloading the data to a computer. However, the integrated daily total can only be viewed by downloading the data to a computer. Downloading data to a computer requires the 240-AC-100 Communication Cable (a standard USB cable will not work) and ApogeeAMS software.
Specifications
- Calibration Uncertainty: ± 5%
- Measurement Repeatability: Less than 1%
- Non-stability (Long-term Drift): Less than 2% per year
- Non-linearity: Less than 1% (up to 1750 W/m2)
- 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: 0 to 50 °C, less than 90% non-condensing relative humidity up to 30 °C, less than 70% non-condensing relative humidity from 30 to 50 °C, separate sensors can be submerged in water up to depths of 30 m
- Meter Dimensions: 126 mm length, 70 mm width, 24 mm height
- Sensor Dimensions: 24 mm diameter, 28 mm height
- Mass: 180 g
- Cable: 2 m of shielded, twisted-pair wire with santoprene rubber jacket (high water resistance, high UV stability, flexibility in cold conditions), additional cable available
- Warranty: 4 years against defects in materials and workmanship
