Laser Precipitation Monitor

Part number: 5.4110.00.xxx

Precipitation
Meas. principle	laser beam
Particle size	0.16 ... 8 mm
Particle speed	0.2 ... 20 m/s
Intensity	< 0.001 ... 1000 mm/h
Error intensity -/ quantity measurement	±5% at adjustment under laboratory conditions with a specific test system with the permissible tolerance of ± 5%. Each LNM is supplied with a factory acceptance certificate after passing the calibration. < 15% rain 0,5... 20mm/h < 30% snow (WS < 3m/s)
Precipitation types	drizzle (also freezing) rain (also freezing) hail snow snow grains / ice needles soft hail / ice grains
Accuracy	comparing with synoptic observation drizzle > 97% rain > 99% hail > 97%* snow > 99% soft hail > 85% snow grains > 60% *According to human observer
Sensors
Laser diode	786 nm, max. 0.5 mW
Laser class	1M (EN60825-1:1994 A2:2001)
Data output digital
Interface	RS485 / 422, potential isolation and 2 impulse outputs, potential isolation
Baudrate	1200 ... 115200 Baud
Output type	ASCII, Synop, Metar @ RS485 / 422 frequency @ impulse outputs
Resolution intensity	0.001 mm/h @ RS485 / 422
Resolution quantity	0,001 mm @ RS485 / 422 0.1 mm, 0,01 mm, 0,005 mm @ impulse outputs
General
Ambient temp.	-40 ... +70 °C
Protection	IP 65
Dimension	Ø 270 x 170 x 540 mm
Weight	4.8 kg

Product

Product name

Product name / Brief description

For the vibration-reduced operation of the LPM on an available concrete foundation,
provided by the customer.

Serves as optional accessory for uninterrupted acquisition even in case of wind.

The Thies LNM View program is used to display data generated by the Thies Laser Precipitation Monitor and/or Thies 3D Stereo Disdrometer.

Compatibility
Connectable instruments	• Laser precipitation monitor 5.4110.xx.xxx • 3D Stereo Disdrometers 5.4120.xx.xxx
System requirements	PC with: • 1GHz, 256 MBRAM, recommended 2 GHZ, 512MBRAM • Graphics resolution: 800 x 600 • Graphics colours: 16bit TrueColor
Operating system	Recommended operation system: • Windows 8 • Windows 10

General
Power supply	24 V AC/DC or 22 ... 30 V DC, < 750 mA