Lufft WS501 Smart Weather Sensor

8375_U01_USA_Buoy_WS501_Lake_Erie_Pennsylvania

Lufft WS501 Smart Weather Sensor

Product Number: 8375.1

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Overview

Overview Benefits Specifications Resources

Overview

The WS501-UMB is a compact all-in-one weather sensor with measurement of temperature, relative humidity, air pressure, wind direction, wind speed and radiation. It is part of the WS product family of professional intelligent measuring sensors with a digital interface and an integrated design with ventilated radiation protection for various environmental applications. One external temperature or rain sensor is connectable.

Benefits

All-in-one housing concept & easy installation

All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only a single cable connection.

Maintenance-free operation

Maintenance free operation as there are no moving parts that can wear out.

Flexible interfaces and telegrams

SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, and XDR.

Spectrally flat Class C Pyranometer

Aspirated radiation shield

Specifications

Technical Attributes

Interface	RS485 2 wire Baud rate: 1200 - 38400 bit/s (Standard: 19200) or SDI-12
Analogue inputs	1
Solar Radiation	Accuracy: 5 % Measuring range: Maximum operational irradiance; 2000 W/m² Measurement technology: Kipp & Zonen CMP3 Spectral accuracy: 300 - 2800 nm Response time: ˂ 6 s (63 %), 18 s (95 %) Non-linearity: ˂ 1.5 % (0 - 100 W/m²) Non-stability: ˂ 1 % (change/year)
Dimensions (free text)	Ø150 x 332 mm
Communication	SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR
Relative humidity	Accuracy: ±2 % RH Measuring range: 0 - 100 % RH Measurement technology: Capacitive
Air Temperature	Accuracy: ±0.4 °F (-4 - +122 °F) or ±0.2 °C (-20 - +50 °C), otherwise ±0.9 °F (˃ -22 °F) or ±0.5 °C (˃ -30 °C) Measuring range: -58 - +140 °F (-50 - +60 °C) Measurement technology: NTC Resolution: 0.1 °C (-20 - +50 °C), otherwise 0.2 °C
Power supply	12 - 24 VDC
Air Pressure	Accuracy: ±0.5 hPa (0 - +104 °F) or ±0.5 hPa (0 - +40 °C) Measuring range: 300 - 1200 hPa Measurement technology: MEMS capacitive
Operating temp range 1	-50 - +60 °C
Operating humidity	0 - 100 %
Casing IP Rating	IP66
Non-stability	˂ 1% (change/year)
Wind Speed	Accuracy: ±0.3 m/s or ±3 % (0 - 35 m/s) ±5 % (˃35 m/s) RMS Measuring range: 0 - 75 m/s Measurement technology: Ultrasonic
Cable Length	33 ft (10 m)
Non-linearity	˂ 1.5 % (0 - 100 W/m²)
Cable Connection	Open wires
Wind Direction	Accuracy: ˂ 3° RMSE ˃ 1.0 m/s Measuring range: 0 - 359.9 ° Measurement technology: Ultrasonic
Material enclosures	Plastics (PC)
Weight EU	3.3 lb (˂ 1.5 kg)
Battery?	No

Resources