readings.
Scale
The
scale
key changes the displays from reading in English values to those of Metric
values. The inch light near the rain display is on when the instrument is in English mode. The
English to Metric equivalents are miles per hour or Knots to Kilometers per hour, Fahrenheit to
Celsius, Inches of Mercury to Millibars, Inches of rain to Centimeters of rain. Pressing the
select
and
scale
key at the same time puts the unit into calibration mode.
Report
Pressing the
report
key sends current data to the serial port. The
report
key, when
depressed at the same time as the
select
key, puts the unit into its time setting function. Pressing
the
report
key while in logging mode will send all data in memory from the currently displayed
record forward to the RS-232 port.
Hold
The
hold
key when depressed (toggled on) stops the cycling between two different
parameters on the same display.
Windchill
The
Windchill
key, when depressed, calculates and displays, using wind speed and
temperature, a factor which represents how cold the temperature and wind feel to bare flesh.
Pressing the
windchill
and the
comfort
key at the same time will display the dew point.
Comfort
The
comfort
key, when depressed, calculates and displays, using humidity and
temperature, a factor which represents how warm the temperature feels.
Last
The
last
key, when pressed, displays the time and date of the last rainfall and its rainfall
rate. When pressed at the same time as the clear key, the instrument clears the term rainfall
register. When
last
pressed at the same time as
select
, the unit enters into rainfall history mode.
Average
When toggled on, the dot below the Av light (near the wind speed display), indicating
that the unit is in wind averaging mode. When in wind averaging mode, the instrument displays the
previous minute's average wind direction and speed. When pressing the
average
key and the
select
key at the same time, the unit enters into the printer set mode.
Time Setting Mode:
Press
select
and
report
at the same time, and the last two digits of the year displays (i.e., 90 =
1990). Press the
maximum
button to advance the year; the
minimum
button to retard the year.
WRL Instruction Manual
Texas Weather Instruments, Inc. WRL Instruction Manual