COMPONENTS
WXT520
Weather Sensor
Overview
The WXT520
a
measures wind speed and direction, precipitation,
barometric pressure, temperature, and relative humidity—all in
a single device that has no moving parts. The WXT520’s small
size makes it ideal for quick, short-term deployments. However,
the WXT520 is not intended for weather stations that require
research-grade performance.
www.campbellsci.com/wxt520
Benefits and Features
Low maintenance—no moving parts significantly reduces
maintenance cost and time
Compact and lightweight
Low power consumption
Fast and simple to install
Low power consumption
Fast and simple to install
Outputs an SDI-12 signal that can be measured by many of
our dataloggers
b
Combines the six weather parameters in one instrument
questions & quotes:
435.227.9000
Technical Description
The WXT520’s wind sensor consists of three equally spaced trans-
ducers that produce ultrasonic signals. Wind speed and direction
are determined by measuring the time it takes for the ultrasonic
signal of one transducer to travel to the other transducers.
Precipitation is measured one raindrop at a time. Whenever a
raindrop hits the precipitation sensor, an electrical signal is pro-
duced that is proportional to the volume of the drop.
The WXT520 has a PTU module that contains a capacitive silicon
BAROCAP® sensor for barometric pressure measurements, a
capacitive ceramic THERMOCAP® sensor for air temperature
measurements, and a capacitive thin film polymer HUMICAP®
sensor for relative humidity measurements. The PTU is housed in
a naturally-aspirated radiation shield that protects it and reflects
solar radiation.
a
The WXT520 is manufactured by Vaisala.
b
Compatible dataloggers include the CR200(X)-series, CR800, CR850, CR1000, CR3000, CR5000, CR510, CR10(X), and CR23X.
