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Three special alarms, Setting alarms, Three special alarms setting alarms – DAVIS Vantage Pro Console User Manual

Page 37

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Alarm Mode

Three Special Alarms

ET (Evapotranspiration)

ET is updated only once an hour, on the hour. If during a given hour the ET
Value exceeds the alarm threshold, the ET alarm sounds at the end of that
hour. This is true for daily, monthly, and yearly ET alarms. You must have the
optional Solar Radiation Sensor to use this alarm. See “Evapotranspiration
(ET)” on page 50 fo
r a description of this variable.

Barometric Pressure

The Vantage Pro allows you to set two barometric pressure alarms: a “rise”
alarm and a “fall” alarm. You may select any rate of change per three hours
between 0.00 and 0.99 Hg; the alarm will sound if the rate of change (in
either direction) exceeds your threshold you set.

Time

The time alarm is a standard “alarm clock” alarm. It will sound at the time
you’ve set. Make sure you choose am or pm, if you’re in 12-hour mode. It will
sound for one minute.

Setting Alarms

1. To view or set the high alarm thresholds, press 2ND then press the

ALARM key enter the Alarm Mode.

The screen shows the current high alarm thresholds. The ALARM and
HIGHS icons also appear.

2. To view or set the low alarm thresholds, first press 2ND then press the

ALARM key enter the Alarm Mode. Then press the HI/LOW key to
display the low alarm threshold settings.

The ALARM and LOWS icons appear. See “Graph & Hi/Low Mode
Settings” on
the inside of the front cover.

3. Press the < and > keys to select one of the variables displayed on the

screen or use the console keys to select any weather variable.

4. Press 2ND then press SET to change the selected variable’s alarm

setting.

The right-most digit in the alarm threshold will begin blinking.

5. Press the < and > keys to select digits in the threshold value.

6. Press the + and - keys to change the digit’s value up and down.

7. When you are finished changing the alarm setting, press the DONE key.

8. Repeat steps 3 through 7 to change additional alarm settings.

9. When you are finished, press DONE to exit Alarm Mode.