Davis Instruments Vantage Pro2 manual After a moment, the variable you’ve selected begins, Reading

Calibrating, Setting, and Clearing Variables

1.Select a variable to be calibrated. See “Selecting Weather Variables” on page 21.

2. Press and release 2ND, then press and hold SET.	2ND	SET
After a moment, the variable you’ve selected begins		ALARM
to blink. Keep holding SET until the Calibration Off-
set message displays in the ticker.

The ticker displays the current calibration offset.

3.Press the up or down arrows to add or subtract from the temperature off- set value.

Inside and outside temperature are calibrated in 0.1° F or 0.1° C incre- ments, up to a maximum offset of +12.7 (°F or °C) and a minimum off- set of -12.8 (°F or °C). The variable will change value and the ticker will show the offset you’ve entered.

4.Press DONE to exit calibration.

Calibrate Wind Direction Reading

You can use this procedure to correct the anemometer reading. This is use- ful if the anemometer does not point north in your installation.

1.Check the current direction of the wind vane on the anemometer. Compare it to the wind direction reading on the console. If the wind vane is pointing south, for instance, the wind direction reading on the screen should be 180°.

•If the wind direction reading is greater than 180°, subtract 180 from the reading and subtract the amount of the offset from the wind direction reading.

•If the wind direction reading is less than 180°, subtract the reading from 180 and add the amount of the offset to the wind direction reading.

2.Press WIND as necessary to display the wind direction in degrees.

3.Press and release 2ND, then press and hold SET.

4.The wind direction variable will begin to blink.

5.Continue holding the key until the CAL message appears in the ticker.

Note:	The ticker displays the current wind direction calibration value.
	6.	Press the right or left arrows to select digits in the anemometer’s current
		reading.
	7.	Press the up and down arrows to add or subtract from the anemometer
		reading.
	8.	Repeat steps 4 and 5 until you have entered the offset value from Step 1.
	9.	Press DONE to exit calibration.

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