DAVIS Vantage Pro2 Installation Instructions Addendum

Preparing the Fan-aspirated ISS for Installation
4
2. Carefully cut and remove the plastic cable tie (usually black in color)
that holds the two-sided tipping bucket mechanism in place during ship-
ping.
Note: If installed, the UV and solar radiation sensor cables are routed through the base of the rain col-
lector. Please make sure they do not get moved and make sure they do not interfere with the tip-
ping bucket mechanism or with latching the cone back onto the base. See the ISS Installation
Manual for instructions on inserting the optional metric measurement adapter.
Preparing the Fan-aspirated ISS for Installation
The radiation shield, fan, and solar panel used to power the fan come pre-
assembled with the ISS unit and require no additional assembly. However,
the fan requires initial power from the pre-installed batteries. Tabs are
included to ensure that the batteries that are installed in the fan-aspirated
housing do not power the unit during shipping. To power the fan-aspirated
unit.
1. Remove the cardboard packing
inserts between the passive
shielding, the solar panel, and the
rain collector base and discard.
2. Pull the tabs on the outside of
the shielding slowly.
3. Listen for a slight whir com-
ing from the bottom of the ISS
unit. This sound signifies that
the fan is running.
Twist off the rain collector cone
Tipping bucket mechanism
Cut the plastic cable tie
Preparing the Rain collector

DAVIS Vantage Pro2 Specifications

General

Update Interval	2.5 seconds
Temperature Accuracy	±1°F (±0.5°C)
Barometric Pressure Range	16.00 to 32.50 inHg (540 to 1100 hPa)
Rain Collector Type	Tipping bucket
Wind Speed Range	0 to 200 mph (0 to 322 km/h)
Wind Speed Accuracy	±2 mph (±3 km/h) or ±5%, whichever is greater
Wind Direction Resolution	1°
Wind Direction Accuracy	±3°
Solar Radiation Range	0 to 1800 W/m²
Solar Radiation Sensor Accuracy	±5%
UV Index Range	0 to 16
UV Index Accuracy	±5%
Wireless Transmission Range	Up to 1000 ft (300 m)
Temperature Range	-40°F to +150°F (-40°C to +65°C)
Humidity Range	0 to 100%
Humidity Accuracy	±3%
Rain Collector Resolution	0.01 in (0.2 mm)
Rain Measurement Accuracy	±4%
Wind Direction Range	0 to 360°
Power Supply	Solar powered with battery backup