Description
Silicon Pyranometer designed for field measurements in solar, meteorological, forestry, agricultural & hydrological studies.
Feature
Designed for field measurements in solar, agricultural, meteorological, and hydrological studies
- Used extensively in solar energy studies for site evaluations and monitoring, passive system analysis, irrigation scheduling and other environmental studies.
- Patterned after the work of Kerr, Thurtell and Tanner, and calibrated against Eppley PSP under natural daylight conditions
- Features a silicon photovoltaic detector mounted in a fully cosine-corrected miniature head
- Can be mounted in any plane without affecting performance
- In clear unobstructed daylight conditions compares favorably with first class thermopile type pyranometers, but is priced at a fraction of the cost
- Spectral response does not cover full range of solar spectrum (error induced – <±5% – under most conditions of natural daylight)
- Includes a millivolt adapter (604 precision resistor) to convert milliamp output to millivolts
- Includes anodized aluminum base with stainless steel leveling screws and a weatherproof spirit level
- Should only be used to measure unobstructed daylight (conditions of calibration). Not to be used under vegetation, artificial lights, in green houses, or for reflected solar radiation.
Spesification
|
400 to 1100 nm |
|
Calibrated against an Eppley Precision Spectral Pyranometer (PSP) under natural daylight conditions. Error under most of these conditions is < 5%, typical ±5%. |
|
Typically 90 µA per 1000 W/m2 |
|
Maximum deviation of 1% up to 3000 W/m2 |
|
< ± 2% change over one-year period |
|
10 µs |
|
± 0.15% per °C maximum |
|
Cosine corrected up to 80° angle of incidence |
|
< ±1% error over 360° at 45° elevation |
|
No error induced from orientation |
|
-40°C to +65°C (-40°F to +149°F) |
|
0% to 100% RH |
|
High stability silicon photovoltaic detector (blue enhanced) |
|
Weatherproof anodized aluminum case with acrylic diffuser and stainless steel hardware |
|
2.38 cm Dia x 2.54 cm H (0.94 in. x 1.0 in.) |
|
28 g (1 oz) |
|
3m (10ft) standard |
