Shanghai Laibixin Instrument Technology Development Co., Ltd.
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Profondità neve laser SHM31
Profondità neve laser SHM31
Dettagli del prodotto

Luff (ultimo prodotto)


Snow Depth Sensor SHM31

The laser-based snow depth sensor Lufft SHM31 stands for millimeter-accurate snow level detection over long distances in all weather conditions without any maintenance, due to opto-electronic/laser based rangefinder technology.

Misuratore di profondità della neve laser di precisione del millimetro,

Rilevamento a lunga distanza con un intervallo fino a 30,

Può rilevare varie superfici riflettenti,

Rilevamento della profondità e dello spessore della neve di 15 metri,

L'acquisizione dei dati è estremamente veloce (in secondi)

qualsiasi condizione meteorologica,

esente da manutenzione,


Millimeter-accurate snow levels in all weather conditions: The SHM 31 operates with a visible, easy-to-measure measuring beam. The snow depth is given up to 15 meters within seconds, millimeter-accurate and reliable. Various heating functions significantly extend the lifetime of the laser diode and allow high-quality measurement data in all weather conditions. Regular maintenance becomes redundant with the SHM 31. A very robust housing and an elaborate operation principle allows almost no maintenance work throughout the lifetime of the sensor.


  • Misura della profondità della neve
  • Parameters measured:Snow depth
  • CE-paesi membri, paesi terzi
  • Measurement technology:opto-electronic measuring technique (rangefinder; laser distance sensor) with eye-safe laser
  • Telecomando, riscaldabile, compensazione automatica dell'inclinazione, facile installazione
  • Product highlights:Determination of snow depth over long distances, heating options allow high quality measurements in all weather conditions, simplified installation due to automatic inclination angle compensation
  • Interfacce multiple, compatibili con più sistemi
  • Interfaces:RS485 & RS232 with UMB, UMB-ASCII 2.0 & SDI12 protocol

Advantages of the Snow Height Sensor Lufft SHM31

  • Measurement of millimeter-accurate snow levels over long distances
  • Various heating functionssignificantly extend the lifetime of the laser diode and allow high-quality measurement datain all weather conditions
  • Compact and weatherproof housing
  • Built-in automatic angle meter allows simplified installation.
  • Effective suppression of scattered light
  • Differentiation between snow and other natural surfaces
  • Optical measuring method isindependent of temperature or wind fluctuationsand thus offers a great advantage over conventional ultrasonic sensors
  • Maintenance-free operation: no calibration or exchange of desiccant

Parametri importanti


General
Dimensions (LxWxH) 302mm × 130mm × 234mm
Weight 2,35 kg
Operating parameters
Temperature range -40°C...+ 50 °C
Relative humidity 0%... 100%
Measuring parameters
Snow Depth 0 ... 15 m
Mounting distance to surface 0,1 ... 16 m
Accuracy (snow depth)2 ± (5 mm + 0.06 %)
Repeatability 0.6 mm
Intermediate precision/ reproducibility 5 mm
Data-interfaces
RS485 ASCII, UMB protocol
RS232 ASCII protocol
SDI-12 SDI-12 protocol
Data transfer mode Polling (UMB, ASCII, SDI-12); Auto telegram output (ASCII)
Electrical parameters
typ. power consumption at 24 Vdc and 10 s laser measurement interval without heater: approx. 0.7 W; with window heating: approx. 3.4 W
Power supply 12, 24 VDC
Maximum power consumption(connecting power with heater on) 18 W
Safety
Laser classification Laser class 2 (IEC 60825-1:2014)
Protection class IP68
EMC EN 61326-1:2012 (industrial standard)
EC 2014/30/EU & RoHS 2011/65/EU

Differenza dal precedente modello SHM30?

What are the main differences of the Lufft SHM31 compared to the Lufft SHM 30?


Both the extended heating function and the improved design of the laser diode (particularly the laser output) increase the resistance and performance of the sensor in extreme weather conditions, e.g. in severe snow storms or during sudden extreme cold snaps.


Nuovo modello:

Più risparmio energetico, bassa corrente;

L'uscita laser è dotata di riscaldatori,

Compensatore automatico dell'angolo di inclinazione integrato

Aumentato.Interfaccia RS-485 e SDI-12,

Include il protocollo Lufft UMB


New features are, in particular, an energy-saving low-current operation for idle phases, an additional window heater for the laser output, and a built-in automatic angle meter, which allows simplified installation.

Furthermore, the communication interface has been adapted to enable RS-485 and SDI-12 operation. The Lufft UMB Protocol has been included, too.


The SHM31 is based on an opto-electronic laser distance sensor and operates with a visible, easy-to-measure measuring beam. Distances of up to 30 meters to natural, diffuse reflective surfaces are measured very precisely.

The snow depth is given up to 15 meters within seconds, millimeter-accurate and reliable. An additional function as a ground-snow detector is provided by the signal intensity.

The optical measuring method is independent of temperature fluctuations and thus offers a great advantage over conventional ultrasonic sensors. Temporary impairments of the measuring process, for example by precipitation, are compensated by the operating mode.

Another major benefit is that regular maintenance becomes redundant with the SHM31. A very robust housing and an elaborate operation principle allow almost no maintenance work throughout the lifetime of the sensor. No special interventions like frequent replacements of desiccant or regular calibration are needed.




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Successful operation!

Successful operation!

Successful operation!