DAVIS Vantage Pro2 User Manual

Running the Software
13
Communication Port Settings
WeatherLink contains a dialog box for locating the communications port
(either USB or serial) that the data logger and Weather Envoy are connected
to. Use the Communications Port dialog box to select the communications
port that is used to communicate with the Envoy.
1. Select Communications Port from the Setup menu or use the Walkthrough
to display the dialog box. The Communications Port dialog box displays.
2. Click Auto Detect. The program searches for the port that the Envoy data
logger is connected to. When the correct connection is found, the following
dialog box displays:
3. Click OK. The Communications Port dialog box displays with the correct
port selected in the Com Port drop down box.
4. Select the desired baud Rate from the Baud Rate drop down box.
19200 is the default baud rate for the Weather Envoy data logger.
5. Click OK to select the port settings and exit the dialog.
Set Alarms
You may quickly set the alarm thresholds on the Weather Envoy using the
WeatherLink software. See the Alarms section in this manual for more infor-
mation on the types of alarms available and how they work.

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