ACI A/RH3-AN-O Outdoor Hum/ Temp Transmitter 3%

The ACI Relative Humidity with Thermistor Duct Series uses a durable capacitive sensing element with a hydrophobic filter for strong resistance to moisture, dust, dirt, oils, and chemicals. It offers flexible configuration with DIP switches for output selection and can operate on AC or DC power. The unit includes built-in 0%, 50%, and 100% test modes to verify proper operation and wiring, along with easy field calibration via DIP switches—no sensor replacement required. Designed for harsh environments, it features a weatherproof enclosure, conformally coated circuit boards, and a stainless-steel filter for added protection, ensuring long-term reliability.

ACI A/RH3-AN-O Features:

• Voltage Output: 8 mA maximum (0.32 VA)
• Current Output: 24 mA maximum (0.83 VA)
• Output Signals: 2-wire: 4 - 20 mA (Factory Default)
• +/- 1% over 20% RH Range between 20 to 90% | +/- 2%, or 3% from 10 to 95% Accuracy at 77°F(25°C)
• Operating Temperature Range: -40 to 140°F (-40 to 60°C)
• Storage Temperature Range: -40 to 149°F (-40 to 65°C)
• Response Time: 20 Seconds Typical
• RH Sensor Type: Capacitive with Hydrophobic Filter

Technical Literature:

RH Outdoor Thermistors