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ATMOS 41 Tech Specs
Overview
Specifications
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Technical Specifications
Measurement Specifications
Solar Radiation
Range:
0 – 1750 W/m
2
Resolution:
1 W/m
2
Accuracy:
± 5% of measurement typical
Precipitation
Range:
0 – 400 mm/h
Resolution:
0.017 mm
Accuracy:
± 5% of measurement from 0 to 50 mm/h
Relative Humidity (RH)
Range:
0 – 100 % RH (0.00 - 1.00)
Resolution:
0.1% RH
Accuracy:
Varies with temperature and humidity, ±1.5% RH typical.
See specification chart.
Hysteresis:
±0.80% RH, typical RH
Long-term Drift:
±0.25% RH/year, typical
Air Temperature
Range:
–50 to 60 °C
Resolution:
0.10 °C
Accuracy:
±0.60 °C
Humidity Sensor Temperature
Range:
–40 to 50 °C
Resolution:
0.10 °C
Accuracy:
± 1.0 °C
Vapor Pressure
Range:
0 – 47 kPa
Resolution:
0.01 kPa
Accuracy:
Varies with temperature and humidity, ±0.2 kPa typical below 40 °C.
See specification chart.
Barometric Pressure
Range:
1 – 120 kPa
Resolution:
0.01 kPa
Accuracy:
±0.05 kPa at 25 °C
Equilibration:
<10 ms
Long-term Drift:
< 0.1 kPa/year, typical
Horizontal Wind Speed
Range:
0–30 m/s
Resolution:
0.01 m/s
Accuracy:
The greater of 0.3 m/s or 3% of measurement
Wind Gust
Range:
0–30 m/s
Resolution:
0.01 m/s
Accuracy:
The greater of 0.3 m/s or 3% of measurement
Wind Direction
Range:
0 – 359 °
Resolution:
1 °
Accuracy:
±5 °
Tilt
Range:
–90° to 90°
Resolution:
0.1°
Accuracy:
±1 °
Lightning Strike Count
Range:
0 - 65,535 strikes
Resolution:
1 strike
Accuracy:
Variable with distance, >25% detection at <10km typical
Lightning Average Distance
Range:
0 – 40 km
Resolution:
3 km
Accuracy:
Variable
Communication Specifications
Output
SDI-12 communication
Data Logger Compatibility
METER ZL6 and EM60 data loggers or any data aquisition systems capable of switched 3.6- to 15.0-VDC excitation and SDI-12 communication
Physical Specifications
Dimensions
Diameter:
10.0 cm (3.9 in)
Height:
28 cm (11.0 in), includes rain gauge filter
Operating Temperature Range
Minimum:
–50 °C
Typical:
NA
Maximum:
60 °C
NOTE:
Barometric pressure and relative humidity sensors operate accurately at a minimum of –40 °C
Cable Length
5 m (standard)
75 m (maximum custom cable length for additional cost)
NOTE: Contact Customer Support if a nonstandard cable length is needed.
Cable Diameter
0.165 ±0.004 in (4.20 ±0.10 mm), with minimum jacket of 0.030 in (0.76 mm)
Connector Types
Stereo plug connector or stripped and tinned wires
Stereo Plug Connector Diameter
3.5-mm
Conductor Gauge
22-AWG / 24-AWG drain wire
Electrical and Timing Characteristics
Supply Voltage (VCC to GND)
Minimum:
3.6 VDC continuous
Typical:
NA
Maximum:
15.0 VDC continuous
NOTE:
The ATMOS 41 weather station must be continuously powered in order to work properly
NOTE: For the ATMOS 41 weather station to meet digital logic levels specified by SDI-12, it must be excited at 3.9 VDC or greater.
Digital Input Voltage (Logic High)
Minimum:
2.8 V
Typical:
3.0 V
Maximum:
5.5 V
Digital Input Voltage (Logic Low)
Minimum:
-0.3 V
Typical:
0.0 V
Maximum:
0.8 V
Digital Output Voltage (Logic High)
Minimum:
NA
Typical:
3.6 V
Maximum:
NA
NOTE:
For the ATMOS 41 weather station to meet digital logic levels specified by SDI-12, it must be excited at 3.9 VDC or greater.
Power Line Slew Rate
Minimum:
1.0 V/ms
Current Drain (During Measurement)
Minimum:
0.2 mA
Typical:
8.0 mA
Maximum:
33.0 mA
Current Drain (While Asleep)
Minimum:
0.2 mA
Typical:
0.3 mA
Maximum:
0.4 mA
Power Up Time (SDI Ready)—other commands
Minimum:
NA
Typical:
800 ms
Maximum:
NA
Power Up Time (SDI Ready)—aRx! commands
Minimum:
NA
Typical:
10 s
Maximum:
NA
Measurement Duration
Minimum:
NA
Typical:
110 ms
Maximum:
3000 ms
Other
Pyranometer Spectral Response
See graph in specification chart
Compliance
EM ISO/IEC 17050:2010 (CE Mark)
GSA
View GSA details
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