Envco – Environmental Equipment

The speed rate of drops is registered with a 24 GHz doppler radar system. By comparison between the speed rate and the size of drops, the quantity of rain or its intensity will be registered. The road condition (rain/snow/snow-covered rain/freezing rain/hail) is determined thanks to the speed rate of the rain.

The R2S has the following outstanding features:
• Maintenance-free precipitation sensor
• Differentiation between rain / snow / hail / freezing rain / sleet
• Calculation of quantity (choice of 1mm, 0.1mm or 0.01mm resolution)
• Calculation of intensity
• Interface: RS485 (half-duplex) and 2 digital outputs
• Configurable as a replacement for tipping bucket systems

Technical data
Resolution liquid precipitation 0.01...0.1...1.0mm/m²
Power supply 20...28V
Power consumption without heating 2VA
Heating power / 24V 30VA
Operating temperature range -30...70°C
Operating humidity range 0...100%
Protection type IP67
Interface RS485 semidublex wire, UMB protocol, pulse and frequency interface
Cable length 10m
Type of precipitation Rain, snow, sleet, freezing rain, hail
Measuring range hail 5.1...ca. 30mm
Precipitation
Principle Doppler-radar
Reproducibility Typical >90%
Measuring range drop size 0.3...5mm

Ordering Information
8367.U01 Radar Precipitation R2S-UMB version: EU, USA and Canada
8367.U02 Radar Precipitation R2S-UMB version: UK

Accessories
8160.UISO UMB Interface converter ISOCON
8357.450 Mast 4.5m, hot-dip galvanized, tiltable
8366.USV1 Power supply 24V/4A
8367.SCHIRM Shield R2S
8367.TRAV Traverse for R2S + WS500
8379.USP Surge protection