Lufft WS502 Smart Weather Sensor

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Lufft WS502 Smart Weather Sensor

Product Number: 8375.2

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Overview

Overview Benefits Specifications Resources

Overview

The WS502-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.

Aspirated radiation shield

Specifications

Technical Attributes

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
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
Analogue inputs	1
Battery?	No
Cable Connection	Open wires
Cable Length	33 ft (10 m)
Casing IP Rating	IP66
Communication	SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, XDR
Dimensions (free text)	Ø150 x 322 mm
Interface	RS485 2 wire Baud rate: 1200 - 38400 bit/s (Standard: 19200) or SDI-12
Material enclosures	Plastics (PC)
Operating humidity	0 - 100 %
Operating temp range 1	-50 - +60 °C
Power supply	12 - 24 VDC
Relative humidity	Accuracy: ±2 % RH Measuring range: 0 - 100 % RH Measurement technology: Capacitive
Solar Radiation	Accuracy: 5 % Measuring range: Maximum operational irradiance; 1400 W/m² Measurement technology: Si-photodiode, optoelectric Non-linearity: n/a Non-stability: n/a
Weight EU	3.3 lb (˂ 1.5 kg)
Wind Direction	Accuracy: ˂ 3° RMSE ˃ 1.0 m/s Measuring range: 0 - 359.9 ° Measurement technology: Ultrasonic
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