DAVIS Vantage Pro2 Console - Manual (Page 52)

Weather Data Specifications
49
Weather Data Specifications
Note: These specifications include optional sensors that may not be installed in your Vantage Pro2
Station.
Weather Data Specifications
Variable
Required
Sensors
Resolution Range
Nominal
Accuracy (+/-)
Barometric
Pressure
*
Included in
Console
0.01'' Hg; 0.1 mm;
0.1 hPa; 0.1 mb
16'' to 32.5'' Hg
410 to 820 mm
540 to 1100 hPa
540 to 1100 mb
**
0.03'' Hg
0.8 mm Hg
1.0 hPa
1.0 mb
Barometric Trend
(3 hour)
Change Rates
Rapidly: .06'' Hg
1.5 mm Hg
2 hPa, 2 mb;
Slowly: .02'' Hg
0.5 mm Hg
0.7 hPa, 0.7 mb
5 Arrow Positions:
Rising Rapidly
Rising Slowly
Steady
Falling Slowly
Falling Rapidly
Evapotranspiration
(ET)
ISS or Temp/
Hum Station &
Solar Radiation
sensor
0.01''; 0.1 mm
Daily to 32.67”;
832.1 mm
Monthly & Yearly
to 199.99”;
1999.9 mm
greater of 5% or
0.01''; 0.25 mm
Inside Humidity
Included in
Console
1% 1 to 100%
3% RH;
4% above 90%
Outside Humidity
ISS or Temp/
Hum Station
1% 1 to 100%
3% RH;
4% above 90%
Extra Humidity
ISS or Temp/
Hum Station
1% 1 to 100%
3% RH;
4% above 90%
Dew Point (overall)
ISS or Temp/
Hum Station
1 F; 1C
-105  to +130F;
-76  to +54C
3 F; 1.5C
Leaf Wetness
Leaf & Soil
Station
1 0 to 15 0.5
Soil Moisture
Leaf & Soil
Station or Soil
Moisture Station
1 cb 0 to 200 cb
Daily & Storm
Rainfall
Rain Collector
0.01''; 0.2 mm
to 99.99'';
999.8 mm
greater of 4% or
1 tip,
Monthly & Yearly
Rainfall
0.01''; 0.2 mm
(1mm at totals over
2000 mm)
to 199.99'';
6553 mm
greater of 4% or
1 tip
Rain Rate 0.01”; 0.2 mm
to 96''/hr.;
2438 mm/hr.
greater of 5% or
0.04”/hr.;
1 mm/hr.
*
Barometric pressure readings are standardized to sea level. Elevation Range: -999’ to +15,000’;
-600 to + 4570 m. Note: The console screen limits display of lower elevation to -999’ when using feet
as elevation unit. For elevations lower than -999’, use meters.
**
This is the reduced value after standardizing to sea level.