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Overview
The CHP1-L, manufactured by Kipp & Zonen, is a pyrheliometer used for unattended direct solar-radiation measurement. It is designed specifically to measure the direct beam solar irradiance with a field of view limited to 5 degrees. This is achieved by the shape of the collimation tube, precision apertures, and the detector design.
Read MoreBenefits and Features
- ISO First Class
- Built-in temperature sensors
Images
Detailed Description
To monitor direct normal irradiance, a CHP1 Pyrheliometer is mounted to a user-supplied sun tracker such as Kipp & Zonen's Solys2. The CHP1 pyrheliometer measures the direct-beam solar irradiance with a field of view limited to 5 degrees. The limited field of view requires the CHP1 to be continuously pointed toward the sun. The Solys2 Sun Tracker rotates on two axes and uses a GPS receiver to keep the CHP1 aimed at the sun throughout the day.
Specifications
| Sensor | Pyrheliometer |
| Measurement Description | Measures the direct beam solar irradiance with a field of view limited to 5 degrees |
| Spectral Range | 200 to 4000 nm |
| Sensitivity | 7 to 14 µV/W/m2 |
| Response Time | < 5 s |
| Zero Offset B | < 1 W/m2 |
| Temperature Dependence of Sensitivity | < 0.5% (-20° to +50°C) |
| Field of View (FOV) | 5° ±0.2° |
| Operating Temperature Range | -40° to +80°C |
| Non-Linearity | < 0.2% |
| Maximum Irradiance | 4000 W/m2 |
| International Standards | First Class ISO |
| Body Diameter | 3.8 cm (1.5 in.) |
| Base Diameter | 7.6 cm (3.0 in.) |
| Length | 31.6 cm (12.4 in.) |
| Weight | 0.9 kg (1.98 lb) excluding cable |