ATMOS 14
Tech Specs
TECHNICAL 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: -40.00 – 80.00 °C
Resolution: 0.1 °C
Accuracy: ±0.20 °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
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
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)
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
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: NA
Typical: 170 ms
Maximum: 200 ms
Measurement Duration
Minimum: NA
Typical: 50 ms
Maximum: NA
Other
Compliance
GSA
Request a quote
Fill out the form below to help us pair you with the right expert. We’ll prepare the information you request, then contact you as soon as possible.