| Parameters for: |
|
Distrometer - classification |
440 classes (22 diameter bins and 20 speed bins) |
Measuring area |
46 cm2 (23.0 x 2.0 cm) |
Measuring value |
Precipitation |
Measuring interval |
Real time or 1 minute averaged outputs |
Precipitation |
|
Precipitation types |
drizzle (also freezing)
rain (also freezing)
hail
snow
snow grains / ice needles
soft hail / ice grains |
Precipitation output |
via RS485:
Synop (codes wawa 4680, ww 4677), Metar (code 4678)
via data output: frequency |
Particle size |
0.16 to > 8 mm diameter |
Particle speed |
0.2 to 20 m/s |
Intensity |
<0.005 mm/h (drizzle) to >250 mm/h |
Visibility precipitation |
MOR (Meteorological Optical Range) 0 to 99.999 m |
Radar reflectivity |
Z= -9.9 to 99.9 dBz |
Data Output |
|
RS485 |
1200 to 115200 Bd potential isolation |
Digital output |
duplex
2 x opto couplers 24 VDC, 1 mA for precipitation amount pulses, rsp frequency for kind or
presipitation, potential isolation |
Output Intensity |
via RS485: resolution 0.001 mm/h |
Output quanitity |
via RS485: resolution 0.01 mm
via data output: pulses (res 0.1 mm; 0.01 mm; 0.005 mm) |
Accuracies |
|
Accuracy with quantity measured |
<10% (rain, 0.5-20 mm/h)
<30% (snow) |
Accuracy for precipitation output (comparing with
synoptic observation) wind speed < 3m/s) |
drizzle >97% (Intensity > 0.01 mm/h)
-rain(RA) >99% (>= 2 particles/min, no solid precipitation)
-hail(GR) >95% (>= 2 particles/min)
-snow (SN) >99% (no mixed precipitation)
-snow grains (SG) >60%
-soft hail(GS) t.b.d.
|
|
|
Operating temperature
(optical components are equipped with integrated heating as standard) |
- 40 ° C to + 70 ° C
with extra heating option (available
for mains voltage models)
- 60 ° C to + 70 ° C
0 to 100% humidity |
Available operating voltages |
24 VAC / DC or 22..30 VDC (< 750 mA)
115 VAC, 15 Ohms
230 VAC, 15 Ohms
12 to 24 VDC, 600 mA |
Optional additional heater |
230 VAC / 150 VA |
Optional inputs |
PT100, 0 - 1 V, 0 - 1000 Hz
Serial synchronous |
Principle of operation |
Laser 785 nm maximum 0.5 mW
Optical power, laser class 1M |
| Housing and dimensions |
All die-cast stainless steel 270 x 170 x 540 mm |
| Weight |
4.8 kg
6.5 kg with optional extra heating |
| Protection |
IP 65 |
| EMC immunity |
EN61326 |
| EMC radiation |
EN61000-4-3 EN61326 class B |
| Mounting |
Mast 48 mm to 102 mm: 1.9 to 4 inch |
| Accessories |
|
PC Program LNMView
model 9.1700.99.000 |
Software for graphical presentation and analysis for Windows based systems |
Instrument support
model 4.3187.60.000 |
For the vibration-reduced operation of the LPM at 2 m height on an available
concrete foundation (provided by the customer). The support consists of a vertical tube
with firmly welded struts. Tube length: 2 m
Tube diameter: 60 mm
Weight: 30 kg
Material: Steel, hot-dip galvanised |
