The ATMOS 14 is a fast and reliable environmental sensor designed to measure air temperature, relative humidity, barometric pressure, and vapor pressure in a single compact device. With four measurements from one sensor, it makes environmental monitoring and sensor benchmarking simple and efficient. When paired with the ZL6 Data Logger, data can be collected remotely for convenient monitoring and analysis.
Specifications
Measurement Specifications
| Measurement | Specifications |
|---|---|
| Relative Humidity (RH) | Range: 0 – 100 % RH (0.00–1.00) Resolution: 0.10% RH Accuracy: Sensor measurement accuracy is variable across a range of RH. See specification chart. Equilibration Time (τ, 63%): < 25 s (response time in 1 m/s air stream) Hysteresis: ±0.80% RH, typical Long-term Drift: ±0.25% RH/year, typical |
| Temperature | Range: -40–80 °C Resolution: 0.1 °C Accuracy: ±0.2 °C Equilibration Time (τ, 63%): < 165 s (response time in 1 m/s air stream) Long-term Drift: < 0.03 °C/ year, typical |
| Vapor Pressure | Range: 0 – 47 kPa Resolution: 0.01 kPa Accuracy: Sensor measurement accuracy is variable across a range of temperatures and RH. See specification chart. |
| Barometric Pressure | Range: 1 – 120 kPa Resolution: 0.01 kPa Accuracy: ±0.05 kPa at 25 °C Equilibration Time (τ, 63%): < 10 ms Long-term Drift: < 0.1 kPa/year, typical |
Communication Specifications
| Parameter | Specification |
|---|---|
| Output | DDI serial or SDI-12 communication |
| Data Logger Compatibility | Any data acquisition system capable of 4.0- to 15.0-VDC power and serial or SDI-12 communication. |
Physical Specifications
| Parameter | Specification |
|---|---|
| Dimensions | Diameter: 2.0 cm (0.8 in) Height: 5.4 cm (2.1 in) |
| Operating Temperature Range | Minimum: –40.00 °C Maximum: 80.00 °C NOTE: Sensors may be used at higher temperatures under certain conditions; contact Customer Support for assistance. |
| Cable Length | 5 m (standard)75 m (maximum custom cable length) |
| Cable Diameter | 0.165 ±0.004 in (4.20 ±0.10 mm), with minimum jacket of 0.030 in (0.76 mm) |
| Connector Types | 3.5-mm stereo plug connector or stripped and tinned wires |
| Conductor Gauge | 22-AWG / 24-AWG drain wire |
Electrical and Timing Characteristics
| Parameter | Specification |
|---|---|
| Supply Voltage (VCC to GND) | Minimum: 4.0 VDC Maximum: 15.0 VDC |
| Digital Input Voltage (Logic High) | Minimum: 2.8 V Typical: 3.6 V Maximum: 5.0 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 |
| Power Line Slew Rate | 1.0 V/ms |
| Current Drain (During Measurement) | Minimum: 1.2 mA Typical: 3.5 mA Maximum: 12.0 mA |
| Current Drain (While Asleep) | Minimum: NA Typical: 0.03 mA Maximum: NA |
| Power Up Time (DDI Serial) | Minimum: NA Typical: NA Maximum: 110 ms |
| Power Up Time (SDI-12) | Minimum: 140 ms Typical: 260 ms Maximum: 400 ms |
| Power Up Time (SDI-12, DDI Serial Disabled) | Minimum: 140 ms Typical: 170 ms Maximum: 200 ms |
| Measurement Duration | Minimum: NA Typical: 50 ms Maximum: NA |
Other
| Parameter | Specification |
|---|---|
| Compliance | Prop 65 warning |
| GSA | View GSA details |
Meteorological Stations
Agriculture Monitoring
Greenhouse Monitoring
Research & Field Studies
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