The Model
AS-2000 Modular Weather Station is a computer-based meteorological system
designed as a “user-friendly” solution for data storage and real-time monitoring
of weather conditions. The standard package includes:
Wind Speed
Wind
Directions
Air Temperature
Relative Humidity
Barometric Pressure
Precipitation
Data Logger
Tripod & Mast
Solar Radiation
Shield for temp/humidity
Cables & Mounts
Set-Up Disk
Additional
Sensor options include solar radiation, water or soil temperature, auxiliary air
temperature, rain gauge upgrade, evaporation and soil moisture.
The
unique modular system design provides plug-and-play functionality for adding or
replacing sensors. The AS-2000 Data Acquisition Module includes the following
features larger nonvolatile memory, selectable averaging intervals, 12 bit
analog conversion, 0.1% F.S. accuracy, two alarm outputs, and optional modem
communications.
The AS-2000 is supplied with an attractive desktop data
acquisition module with a memory capacity of 128KB RAM (approximately 45 days at
15 minute intervals with 6 sensors). The standard system includes a 120Vac power
adapter and RS232 serial port for connection to a personal computer. For outdoor
or remote applications, two enclosure options are available. One is for sites
with AC power and the other utilizes a solar panel. Both options include a
NEMA-4X enclosure and rechargeable battery to allow continued operation in the
event of power failure.
Data can be viewed using Windows HyperTerminal or
other terminal programs such as Procomm. A one page real-time text display or an
ASCII row and column format may be selected. A menu is provided for setting the
date and time, alarms, logging interval etc. Optional graphical displays
software is available for viewing real-time and historical data charts and
graphs.
Data Acquisition Module
Reporting units: English or Metric,
all
measurements
Operating power: 10-16 Vdc
Power consumption: 60 mA
maximum
Serial port: 9-pin d-sub connector,
selectable baud rate, flow
control
Memory: 128KB RAM, nonvolatile (45 days
at 15 minute intervals
with
6 sensors) Expandable to 256KB or 512KB.
Operating Temperature
Transducers: -40° to 140° F (-40° to 60° C)
Data acquisition module:
-40° to 140° F (-
40° to 60° C)
Timekeeping
Format: MM/DD and
HH:MM
Accuracy: ± 30 seconds/month
Barometric Pressure
Range: 28.25 to 30.75 inches Hg
Measurement span: 2.50 inches Hg (85
hpa)
Resolution: ± 0.01 inch Hg or ± 0.3 hpa
Altitude offset: 0 to
+10,000 feet,
screwdriver adjustable
Absolute Accuracy: .05 inches Hg
Wind Speed
Range: 0 to 125 mph (0-57 m/s)
Resolution: > 0.1
mph
Accuracy: ± 1 mph
Starting threshold: 0.8 mph
Time constant: 2
seconds
Wind Direction
Range: 0-360°
Resolution: > 1%
Accuracy: + 1°F
Starting threshold:
WS02E: 1.2 mph
WS05E:
0.5mph
Relative Humidity
Range: 0-100% RH
Accuracy: + 3% (10-90%)
Wind Direction
Range: 0 - 360°
Resolution: > 1%
Accuracy:
+ 3%
Solar Radiation
(optional)
Sensor: Silicon Pyranometer
Spectral range: .4 to 1.1 microns
Sensitivity: 80 mV / 1000w/m2 approx
Accuracy: + 5%