Description
SPECIFICATIONS
| Solar radiation | Range: 0 to 1750 W/m2 Resolution: 1 W/m2 Accuracy: ± 5% of measurement typical |
| Precipitation | Range: 0 to 400 mm/h Resolution: 0.017 mm Accuracy: ± 5% of measurement from 0 to 50 mm/h |
| VAPOR PRESSURE | |
| Range | 0 to 47 kPa |
| Resolution | 0.01 kPa |
| Accuracy | Varies with temperature and humidity, ±0.2 kPa typical below 40 °C
|
| RELATIVE HUMIDITY | |
| Range | 0 to 100% RH (0.00-1.00) |
| Resolution | 0.1% RH |
| Accuracy | Varies with temperature and humidity, ±3% RH typical |
| Air temperature | Range: -50 to 60 °C Resolution: 0.1 °C Accuracy: ± 0.6 °C |
| Humidity sensor temperature | Range: -40 to 50 °C Resolution: 0.1 °C Accuracy: ± 1.0 °C |
| Barometric pressure | Range: 50 to 110 kPa Resolution: 0.01 kPa Accuracy: ± 0.1 kPa from -10 to 50 °C, ± 0.5 kPa from -40 to 60 °C |
| Horizontal wind speed | Range: 0 to 30 m/s Resolution: 0.01 m/s Accuracy: the greater of 0.3 m/s or 3% of measurement |
| Wind gust | Range: 0 to 30 m/s Resolution: 0.01 m/s Accuracy: the greater of 0.3 m/s or 3% of measurement |
| Wind direction | Range: 0° to 359° Resolution: 1° Accuracy: ± 5° |
| Tilt | Range: -90° to +90° Resolution: 0.1° Accuracy: ± 1° |
| Lightning strike count | Range: 0 to 65,535 strikes Resolution: 1 strike Accuracy: variable with distance, >25% detection at <10km typical |
| Lightning average distance | Range: 0 to 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 CHARACTERISTICS | |
| Dimensions | Diameter: 10 cm (3.94 in) Height: 34 cm (13.39 in), includes rain gauge filter |
| Operating temperature range | Minimum –50 °C Maximum: 60 °CNOTE: 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. |
| Connector types | 3.5-mm stereo plug connector or stripped and tinned wires |
| ELECTRICAL AND TIMING CHARACTERISTICS | |
| Supply voltage (VCC to GND) | Minimum: 3.6 VDC continuous Maximum: 15.0 VDC continuousNOTE: 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) | Typical 3.6 V
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)—aRx! commands | Typical: 10 s |
| Power up time (SDI ready)—other commands | Typical: 800 ms |
| Measurement duration | Typical: 110 ms Maximum: 3,000 ms |
| Compliance | Manufactured under ISO 9001:2015 EM ISO/IEC 17050:2010 (CE Mark) |
| Pyranometer spectral response |  Spectral response estimate of Apogee silicon-cell pyranometers. Spectral response was estimated by multiplying the spectral response of the photodiode, diffuser, and adhesive. Spectral response measurements of diffuser and adhesive were made with a spectrometer, and spectral response data for the photodiode were obtained from the manufacturer. |
