240-140 Silicon Cell Pyranometer
240-150 Silicon Cell Pyranometer with Mounting & Leveling Plate
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| 240-150 Silicon Cell Pyranometer with Mounting & Leveling Plate |
The Model 240-140 Silicon Cell Pyranometer measures global solar radiation. When used with the 240-152 Shadow Band, it will measure diffuse radiation. This pyranometer is low cost, lightweight, and easy to install. The 240-150 includes a mounting and leveling plate.
The sensor is a silicon photovoltaic cell which absorbs radiation from 0.35 to 1.15 microns. The silicon cell converts this light energy into electrical energy, and the output voltage (approximately 80 mV/1000 Wm²) is essentially linear with light intensity. Full scale response time is less than 1 millisecond due to the fact that the instrument is light sensitive, not heat sensitive. If the output is integrated over a daily period, the accuracy of the value is within ±3%. Accuracy of instantaneous values is ±5%. Temperature compensation is provided from 4° to 60°C.
Specifications
Sensor: Silicon photovoltaic cell
Spectral response: 0.35 to 1.15 microns
Sensitivity: Approx 80 mV/1000 Wm²
Full scale response time: < 1 millisecond
Impedance: 1 ohm
Accuracy: ± 5%
Temperature compensation: +4° to +60°C
Windshield: Pyrex glass dome
Leveling: Circular level and 3 threaded feet
Size: 5" Dia x 2" H
Weight/shipping: 1 lb/2 lbs
Ordering Information
240-140 Silicon Cell Pyranometer sensor only, includes 10' cable
240-150 Silicon Cell Pyranometer with mounting and leveling plate, 10' cable
240-152 Shadow Band
240-153 Tower Mount, 1' boom with tower mounting hardware
135-100-SR Amplifier PCB for 240-140/150, 100mV to 5V
330-0220S Additional Cable, per foot
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Solar Radiation Sensors
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