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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.
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:
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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.
WR-25 Instruction Manual
Texas Weather Instruments, Inc. WR-25 Instruction Manual