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to your area, any cycle that lasts between 1 and 99 hours may be displayed.
Clearing the Memories
When the clear button is depressed and held, the unit will display the date and time the instrument's
memory was last cleared. In order to clear the memories, the clear and minimum button must be
pushed at the same time. The items cleared are as follow: minimum and maximum, wind speed,
temperature (indoor, outdoor, and aux), barometric pressure and humidity. Daily rainfall is cleared
automatically at midnight every night. Monthly rainfall is cleared automatically at midnight on the last
day of the month. Term rainfall may be cleared at any time by the user by depressing clear and last
rain at the same time. The term rainfall register may be used for any term desired by the user, but is
most commonly used to account for yearly rainfall. The memories can also be changed by using
TWI_LOG.
Rainfall history mode
If the information is available, the actual daily, monthly and term rainfall amounts that occurred
before the installation of the weather station may be manually entered. To do so enter the rain
history mode, by pressing select and last at the same time. The first item to appear will be the dally
rainfall total. Press minimum or maximum to input the correct amount. Press select again and the
monthly rainfall amount will appear. Press select again and the unit will display term rainfall, change
as desired. Press select again and the unit will return to normal mode.
WR-25 Instruction Manual
Texas Weather Instruments, Inc. WR-25 Instruction Manual