Texas Instruments Weather Report Logger WRL-25 Manual page 10

WRL Instruction Manual
Press select a fifth time, and the unit displays in the rainfall window: 0, 1, 2, or 3. 2 is the normal
display. Press the maximum or minimum key to enter the proper number
reference, page 23, for more information).
Press select a sixth time; the unit will display in the rainfall window a reading ranging from .01 to .1.
Press the maximum or minimum button to enter the proper number.
Press select a seventh time - the unit displays wind direction on the compass rose and the offset
number in the temperature display. Press the maximum or minimum key to enter the actual wind
direction.
Press select an eighth time - the elevation calibration number will be in the pressure window. Leave
this set to 0.
Press select a ninth time - the unit will return to the normal display mode.
Humidity Sensor Calibration
This function is only used if a new humidity sensor is installed. Press select and humidity hold to
enter this mode. The first number to appear is the voltage at 0% humidity that the sensor outputs.
Press select again and a second number will appear. This larger number is the voltage that the
sensor outputs at 75% humidity. The humidity calibration numbers are found on the
humidity/temperature sensor and on the back of the instrument console. These calibration numbers
are supplied to us by the manufacturer of the sensor and are normally not changed.
Logging Mode
Press select and time hold at the same time to enter logging mode (note that all the trend
Texas Weather Instruments, Inc.
(see calibration
index /
WRL Instruction Manual
top