3
Operation Manual
About this manual
Thank you and congratulations on selecting this professional weather station! We are
positive you will enjoy the benefits of accurate weather readings and the precise radio
controlled time information that our instruments offer.
This manual will guide you step-by-step through setting up your PCE-FWS 20 device. Use
this manual to become familiar with your professional weather station, and save it for future
reference.
Glossary of Common Terms
DCF/WWVB
The DCF or WWVB time signal is an AM modulated time-of-day signal broadcasted by the
Federal Government of Germany or NIST from USA. The time base is generated from an
atomic time generator which is accurate to 10 billions of one second.
LCD
“LCD” is an acronym for ”Liquid Crystal Display”. This is a common type of display screen
used in televisions, computers, watches, and digital clocks.
BAROMETER & BAROMETRIC PRESSURE
A barometer is a device that measures the pressure of the air pushing on it—this
measurement is called the barometric pressure. We don’t actually feel the barometric
pressure because the air pressure is pushing equally in every direction.
RELATIVE AIR PRESSURE
Relative air pressure is the same as the barometric pressure. The calculation of relative air
pressure is a combination of the absolute air pressure and the altitude.
ABSOLUTE AIR PRESSURE
Absolute air pressure is the actual air pressure on the barometer without regard to altitude.
INCHES OF MERCURY (inHg)
Inches of Mercury is the common unit of measurement for air pressure in the United States.
HECTOPASCALS
(hPa)
Hectopascals are the common units of measurement for air pressure in the International
System (SI) of measurement. The hectopascal holds the same value Important Note:
Before inserting batteries, please carefully read the operation manual.
The touch screen weather station PCE-FWS 20 includes a base station (receiver), a
transmitter unit, one wind direction sensor, one wind speed sensor, one rain gauge, USB
cable and a PC software package on CD-ROM.