Power & Energy Meter Solutions
This outdoor air relative humidity and temperature transmitter has a platinum RTD with a nominal resistance of 1 kΩ to accurately monitor relative humidity and ambient temperature. The transmitter has an output of 4 to 20 mA with ±2% accuracy.
This outdoor air relative humidity and temperature transmitter has a platinum RTD with a nominal resistance of 1 kΩ to accurately monitor relative humidity and ambient temperature. The transmitter has an output of 4 to 20 mA with ±2% accuracy.
Advanced digital polymer sensing technology provides precise relative humidity (RH) measurement, the AcuHUM OA series outdoor air relative humidity sensor offers long-term stability, fast response time, and ability to recover from condensation. The RH sensor can be mounted onto a vertical surface for monitoring outdoor RH/ temperature. With an IP65 rated enclosure, it is suitable for sheltered outdoor locations and protect against dust ingress and water. The AcuHUM OA sensor also features an optional thermistor, RTD, or transmitter to conveniently provide a temperature and RH measurement in a single device
What is an Outdoor Relative Humidity and Temperature Sensor?
An outdoor relative humidity and temperature sensor is an electrical device using digital polymer sensing technology to measure the amount of moisture (relative humidity) and the ambient temperature in the outdoor environment. The sensor transmits the data to a Building Automation System to control economizers, fans, mechanical heating and cooling to provide optimal indoor comfort for occupants and ensure HVAC equipment is running efficiently.
Caractéristiques
Applications
| Specifications for the AcuHUM-OA-A-A-04 | |
| Sensor Accuracy | ±0.36°F at 77°F (±0.2°C at 25°C) |
| RH Analog Output | 4 to 20 mA Transmitter |
| Temperature Analog Output | Resistive Thermistor or RTD |
| Temperature Sensor | 1 KΩ Platinum RTD, 2 Wires |
| Relative Humidity Measurement | |
| Voltage Power | 19.2 to 28.8 VAC or V DC |
| Current Power | 19.2 to 28.8 V DC (RL=500Ω) 8.5 to 35 V DC (RL=0Ω) |
| Output | 4 to 20mA (2 Wires) or 0 to 10V DC (3 Wires) |
| Relative Humidity Performance | |
| RH Sensor Type | Digital Polymer |
| Accuracy | ±2% (25°C, 20 to 80%RH), ±3% (0 to 95%RH) |
| Measurement RH Range | 0 to 100% |
| Operating RH Range | 0 to 95%RH (Non-Condensing) |
| Hysteresis | <1%RH |
| Response Time | <10s (25°C, in Slow Air) |
| Drift | <0.5%RH/year |
| Temperature Measurement | |
| Transmitter Voltage Power | 19.2 to 28.8 VAC or V DC |
| Transmitter Current Power | 19.2 to 28.8 V DC (RL=500Ω) 8.5 to 35 V DC (RL=0Ω) |
| Transmitter Output | 4 to 20mA (2 Wires) or 0 to 10V DC (3 Wires) |
| Output Load | ≤500Ω (Current), 22kΩ (Voltage) |
| Temperature Performance | |
| Temperature Sensor Type | RTD or Thermistor, See Ordering information |
| Temperature Transmitter Measurement Range | -40 to 140°F (-40 to 60°C) |
| Response Time | <10s |
| Environmental | |
| Operating Temperature Range | -4 to 158°F (-20 to 70°C) |
| Storage Temperature | -22 to 176°F (-30 to 80°C) |
| Certifications/Warranty | |
| Enclosure Material | Fire Retardant Polycarbonate UL94V-0 |
| Protection | IP65 |
| Agency Approvals | CE |
| Mechanical | |
| Mounting | Screw Surface Mount |
| Wiring Connection | Push Button Terminal Blocks |
| Weight | 0.53 lbs (240 g) |
| Specifications for the AcuHUM-OA-A-A-04 | |
| Sensor Accuracy | ±0.36°F at 77°F (±0.2°C at 25°C) |
| RH Analog Output | 4 to 20 mA Transmitter |
| Temperature Analog Output | Resistive Thermistor or RTD |
| Temperature Sensor | 1 KΩ Platinum RTD, 2 Wires |
| Relative Humidity Measurement | |
| Voltage Power | 19.2 to 28.8 VAC or V DC |
| Current Power | 19.2 to 28.8 V DC (RL=500Ω) 8.5 to 35 V DC (RL=0Ω) |
| Output | 4 to 20mA (2 Wires) or 0 to 10V DC (3 Wires) |
| Relative Humidity Performance | |
| RH Sensor Type | Digital Polymer |
| Accuracy | ±2% (25°C, 20 to 80%RH), ±3% (0 to 95%RH) |
| Measurement RH Range | 0 to 100% |
| Operating RH Range | 0 to 95%RH (Non-Condensing) |
| Hysteresis | <1%RH |
| Response Time | <10s (25°C, in Slow Air) |
| Drift | <0.5%RH/year |
| Temperature Measurement | |
| Transmitter Voltage Power | 19.2 to 28.8 VAC or V DC |
| Transmitter Current Power | 19.2 to 28.8 V DC (RL=500Ω) 8.5 to 35 V DC (RL=0Ω) |
| Transmitter Output | 4 to 20mA (2 Wires) or 0 to 10V DC (3 Wires) |
| Output Load | ≤500Ω (Current), 22kΩ (Voltage) |
| Temperature Performance | |
| Temperature Sensor Type | RTD or Thermistor, See Ordering information |
| Temperature Transmitter Measurement Range | -40 to 140°F (-40 to 60°C) |
| Response Time | <10s |
| Environmental | |
| Operating Temperature Range | -4 to 158°F (-20 to 70°C) |
| Storage Temperature | -22 to 176°F (-30 to 80°C) |
| Certifications/Warranty | |
| Enclosure Material | Fire Retardant Polycarbonate UL94V-0 |
| Protection | IP65 |
| Agency Approvals | CE |
| Mechanical | |
| Mounting | Screw Surface Mount |
| Wiring Connection | Push Button Terminal Blocks |
| Weight | 0.53 lbs (240 g) |
