Overview
The ODM 470 optically measures precipitation particle-size distributions and intensity. Its cylindrical measuring volume reduces sensitivity to particle incidence direction, while a wind vane aligns the volume with the local wind for strong winds, variable wind fields and shipboard observations.
Key features
- Optical attenuation signals are used to analyse precipitation particle-size distributions.
- A cylindrical measuring volume reduces dependence on the particle incidence direction.
- A wind vane turns the measuring volume perpendicular to the local wind.
- Suitable for rain, snow and mixed precipitation, with minute-by-minute spectra and precipitation data.
- 128 logarithmic size channels cover the 0.5–22 mm range specified in the manufacturer technical table.
- The standard system comprises the measuring unit, wind vane and processing / power unit with LCD.
Technical specifications
| Parameter | Specification |
|---|---|
| Particle-size range | 0.5–22 mm |
| Size channels | 128, logarithmic |
| Noise-equivalent particle size | 0.5 mm |
| Power supply | 100–230 VAC |
| Power consumption | Approximately 20 W |
| Current | 0.30 A; 0.38 A with IRSS 88 |
| Dimensions (H × W × L) | 60 × 60 × 60 cm, including wind vane |
| Weight | 9.5 kg |
Equipment and configuration
System configuration and options
- External wind-speed and precipitation yes/no signals can be added.
- IRSS 88 precipitation sensor, wind-speed sensor, mast mounting and cables are selected as required.
Applications
Meteorological precipitation observations, particle-spectrum research and shipboard monitoring, especially in strong or variable winds.
Selection
Confirm mast mounting, wind-vane clearance, external sensors and signal inputs for the installation environment.