Texas Instruments Weather Report Logger WRL-25 Manual page 2

WRL Instruction Manual
they connect via RJ45's to two multi-wire cables (intermediates) that are routed into the building and
attached to the console. All cables are color coded. The yellow wind sensor cable plugs into the
yellow RJ45 connector in the junction box. The yellow intermediate (wind) also plugs into a yellow
RJ45 connector in the junction box. Plug the temperature/humidity pagoda and the rain collector
(both colored blue) and the blue intermediate into the blue RJ45 connectors in the junction box You
may place any blue cable in to any blue RJ45 connector, the order does not matter.
C A U T I O N !! :BE EXTREMELY CAREFUL NOT TO TOUCH ANY HIGH POWER LINES
There is lightning protection (transient voltage suppressers) built into the junction box. It is very
important that the mast be grounded or the transient voltage suppressers will not protect your
instrument. The junction box picks up earth ground through the hose clamps mounting the box. We
suggest that you install a copper grounding rod (available at Radio Shack) and run the heavy gauge
wire directly behind the hose clamps of the junction box. This arrangement will ground your mast
and your junction box.
The wind direction and speed sensor is normally mounted on television type antenna masts (see
Figure 1). For best results the wind sensor should be mounted at twenty feet above the roof of the
building. The higher the installation, the more accurate the readings. There is one yellow cable that
must be strung from the wind sensor to the console via the junction box. The wind direction sensor
is calibrated at the factory and should be installed with wind sensor arm pointed to the North. The
wind sensor can be mounted and calibrated via the WRL console in any direction at al later time,
but it is more convenient to use the precalibrated North reference. If calibration is necessary after
Texas Weather Instruments, Inc.
DURING INSTALLATION OF THE VARIOUS SENSORS!!!
WRL Instruction Manual