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Weather data specifications – DAVIS Vantage Pro Console User Manual

Page 57

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Weather Data Specifications

Weather Data Specifications

Note: These specifications include optional sensors that may not be

installed in your Vantage Pro Station.

T

ABLE

3-1: W

EATHER

D

ATA

S

PECIFICATIONS

Variable

Required Sensors

Resolution

Range

Nominal Accuracy

(+/-)

Barometric
Pressure

a

Included in Console

0.01” Hg; 0.1 mm;

0.1 hPa; 0.1 mb

26” to 32” Hg; 660 to

810 mm; 880 to

1080 hPa; 880 to

1080 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

0.01”; 0.25 mm

Daily to 99.99”;

999.9mm

Monthly & Yearly to
199.99”; 1999.9mm

greater of 5% or

0.01”; 0.25 mm

Inside Humidity

Included in Console

1%

10 to 90%

5% RH

Outside Humidity

ISS or Temp/Hum
Station

1%

0 to 100%

3% RH; 4% above

90%

Extra Humidity

ISS or Temp/Hum
Station

1%

0 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

Frost/Dew Point at
High Humidity

ISS or Temp/Hum
Station

1

°F; 1°C

-105

° to +130°F; -

76

° to +54°C

2

°F; 1°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”; 0.25 mm

to 99.99”; 999.9 mm

greater of 4% or

1 tip,

Monthly & Yearly
Rainfall

0.01”; 0.25 mm

(1 mm at totals over

2000 mm)

to 199.99”;

19,999 mm

greater of 4% or 1 tip

Rain Rate

0.01”; 0.25 mm (

to 100”/hr;

1999.9 mm/hr

greater of 5% or

0.04”/hr; 1 mm/hr

Solar Radiation

Solar sensor

1 W/m

2

0 to 1800 W/m

2

5% of full scale

Inside
Temperature

Included in Console

0.1

°F; 0.1°C

+32

° to +140°F; 0 to

+60

°C

1

°F; 0.5°C