Up to six parameters from the same sensor body
Sensors integrates a unique folded-path sonic anemometer with a multi-element temperature sensor, fast-response capacitive relative humidity sensor, state-of-the-art barometric pressure sensor. Alternative versions are equipped with photodiode radiation sensor or optical rain sensor. The result is a professional grade All-In-One Weather Sensor designed for reliability, longevity, and ease of installation. Two classes of sensors are available; Standard made in aluminum and Compact series made in plastic, with different size and different features concerning the wind measurement.
All models can be connected to any LSI Lastem data logger on serial port COM2 using its Modbus output protocol.
• Up to six parameters from the same sensor body;
• Two size versions with different specifications for a wide range of applicartions;
• Easy connection, using Modbus-RTU, to third part data loggers and LSI Lastem’s data loggers;
• Heated versions. (Standard versions only);
• In house ISO17025 accreditate calibration laboratory.
| Technical Specifications | COMPACT SERIES | |||
| P/N (without heater ) | DNB200 – DNB200.2 | DNB201 – DNB201.2 | DNB202 – DNB202.2 | |
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| Wind speed | x | x | x | |
| Wind direction | x | x | x | |
| Air Temperature | x | x | x | |
| Relative Humidity and Dew Point |
x | x | x | |
| Pressure | x | x | x | |
| Solar radiation | – | – | x | |
| Rain | – | x | – | |
| Material | Plastic | |||
| Output | DNB200: RS485 DNB200.2: RS232 |
DN201: RS485 DNB201.2: RS232 |
DNB202: RS485 DNB202.2: RS232 |
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| Power supply | 12…30 Vdc | |||
| Power consumpt.@12 Vdc | 13 mA | 55 mA | 18 mA | |
| Size | 170×126 mm | |||
| Weight | 0.7 Kg | 0.75 Kg | 0.95 Kg | |
| Protection | IP65 | |||
| STANDARD SERIES | ||||
| P/N (without heater ) | DNB300 – DNB300.2 | DNB301 – DNB301.2 | DNB302 – DNB302.2 | DNB304 – DNB304.2 |
| P/N (with heater) | DNB300.1 | DNB301.1 | DNB302.1 | |
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| Wind speed | x | x | x | – |
| Wind direction | x | x | x | – |
| Air Temperature | x | x | x | – |
| Relative Humidity and Dew Point |
x | x | x | – |
| Pressure | x | x | x | – |
| Solar radiation | – | – | x | – |
| Rain | – | x | – | x |
| Material | Aluminium | |||
| Output | DNB300-300.1: RS485 DNB300.2: RS232 |
DNB301-301.1: RS485 DNB301.2: RS232 |
DNB302-302.1: RS485 DNB302.2: RS232 |
DNB304: RS485 DNB304.2 RS232 |
| Power supply | 12…30 Vdc | |||
| Power consumption @12 Vdc (sensor only) |
13 mA | 55 mA | 18 mA | 45 mA |
| Power consumption @24 Vdc (heater) (see P/Ns with heater) |
10 A | NO | ||
| Size | 170×126 mm | 170×126 mm | 170×126 mm | 170×80 mm |
| Weight | 1.5 Kg | 1.5 Kg | 1.65 Kg | 1.05 Kg |
| Protection | IP66 | |||
| Compact Series | Standard Series | ||
| Wind speed | Principle | Ultrasonic | Ultrasonic |
| Range | 0…60 m/s | 0…60 m/s | |
| Accuracy | ± 0.3 m/s 5% (0,02…35 m/s) 10% (>35 m/s) |
± 0,2 m/s 3% (0,02…35 m/s) 5% (>35 m/s) |
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| Threshold | 0.02 m/s | 0.01 m/s | |
| Resolution | 0.01 m/s | 0.01 m/s | |
| Wind direction | Principle | Ultrasonic | Ultrasonic |
| Range | 0…360° | 0…360° | |
| Accuracy | ±3° (>1 m/s) | ±2° (>1 m/s) | |
| Threshold | 0.2 m/s | 0.2 m/s | |
| Resolution | 0.1° | 0.1° | |
| Temperature | Principle | Diode voltage | Diode voltage |
| Range | -40…80 °C | -40…80 °C | |
| Accuracy | ±0.3°C (-35…60°C), otherwise ±0.5°C |
±0.3°C (-35…60°C), otherwise ±0.5°C |
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| Resolution | 0.1°C | 0.1°C | |
| RH% | Principle | Capacitive | Capacitive |
| Range | 0…100% | 0…100% | |
| Accuracy | 3% | 3% | |
| Resolution 0.1% | 0.1% | 0.1% | |
| Dew Point | Type | Calculation | Calculation |
| Pressure | Principle | Piezoresistor | Piezoresistor |
| Range | 600…1100 hPa | 600…1100 hPa | |
| Accuracy | ±0.5 hPa @ 25°C | ±0.5 hPa @ 25°C | |
| Resolution | 0.1 hPa | 0.1 hPa | |
| Solar Radiation | Principle | Photodiode | Photodiode |
| Spectral range | 300…3000 nm | 300…3000 nm | |
| Range | 0…2000 W/m2 | 0…2000 W/m2 | |
| Resolution | 1 W/m2 | 1 W/m2 | |
| Accuracy | 5% | 5% | |
| Temperature response | 5% | 5% | |
| Directional error 0<θ<80° | <±10 W/m2 (@ 1000 W/m2) | <±10 W/m2 (@ 1000 W/m2) | |
| Non-linearity | Max 3% (0…1000 W/m²) | Max 3% (0…1000 W/m²) | |
| Rain total | Principle | Optical | Optical |
| Measurement | Rain total: mm/min, mm/hr, mm/day, Total |
Rain total: mm/min, mm/hr, mm/day, Total |
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| Range of measurement | 0…400 mm/hr | 0…400 mm/hr | |
| Repeatability | 3% | 3% | |
| Resolution | 0.08 mm/hr | 0.08 mm/hr |
Common Technical Specifications
| Output | Digital | RS-232, RS-485 (see each PN) |
| Protocol | Modbus-RTU | |
| Baud rate | 9600 bits | |
| Cable | Connector | Aerospace type |
| Cable | Not included (see Accessories) | |
| Protection | Housing protection | IP66 (with mounting kit attached) |
| Operative conditions | Temperature | -40…70°C |
| Humidity | 5…100% RH | |
| Compatibility | LSI LASTEM’s data Logger | Versions with RS232 output: M-Log (ELO008) E-Log Versions with RS485 output: A-Log |
| Installation | Mounting | On pole Ø 35…50 mm using bracket (included) |
These sensors are classified as ISO 9060 Secondary Standard. With a total daily uncertainty of only 2% within 0…180° field of view, fast response time,
Accurate temperature measurements (0.1°C) , 4-wires technologiy for long distance sensor cable
E-Log, equipped with specific inputs for a wide range of sensors and calculations of derived quantities, has been designed for environmental applications even in extreme conditions
Ultrasonic anemometer. Highlights. Wide range of signal outputs 4-20 mA, RS232/485 Modbus;; No moving parts;; Very-High speed wind measurement (0-85 m/s)
