The Model 095 Pyranometer incorporates a multi-junction differential thermopile and a precision ground optical glass hemisphere which is transparent to wavelengths 0.285 to 2.80 microns. It is used for high precision, broad band-width measurements of incident solar radiation.
The detector element is of wirebound-plated construction with black and white segments. When exposed to solar radiation, the differing absorptivity of the black and white surfaces develops a temperature differential. The thermopile then produces a voltage proportional to the solar radiation. Built-in thermistor circuitry is incorporated to eliminate the effects of ambient temperature.
The single hemispherical optical glass dome has a waterproof seal, but can easily be removed for repairs. The case is cast aluminum, painted white, and is fitted with a desiccator, circular level, and leveling screws. A mounting base with a vertical 3/4” IPS pipe simplifies field installation of the sensor. This rugged instrument is capable of withstanding mechanical vibrations of up to 20 G’s.
- Differential thermopile detector
- High accuracy, broad bandwidth
- Temperature compensated
- Rapid response time
- Built-in leveling devices
|Spectral Response:||Nanometers: 285 – 2800
Microns:0.28 – 2.8
|Calibration:||Integrating hemisphere approx. 1 cal cm-2 min-1, at 25°C|
|Sensitivity**::||11 mV/kwatt meter-2, approx|
|Impedance:||350 ohms, approx|
|Temperature Depend:||±1.5% constancy from -20°C to +40°C|
|Linearity:||±1% from 0 to 1400 watts meter-2|
|Response Time:||5 second (1/e signal)|
|Cosine Response:||±2% from normalization 0°-70° zenith angle; ±5% 70°-80° zenith angle|
|Dimensions:||5.75 in (14.6 cm) diam.
21 in (53.4 cm) h, including mount
|Weight:||4 lbs (1.8 kg), including mount|
|Mounting:||Leveling plate and mounting base included.
Requires PN 1552 fitting or similar device.
|**Sensitivity varies among sensors of the same type. A calibration certificate is supplied with each sensor.|
Specifications are subject to change at any time