ACI A/RH3-AN-R Room 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-R Features:

• Voltage Output: 8 mA maximum (0.32 VA)
• 4-20 mA: 700 Ohms maximum Output Load Resistance
• 2-wire: 4 - 20 mA (Factory Default) Output signals
• 0-100% Measurement range
• 0 to 95% RH, non-condensing Operating Range
• 35 to 122°F (1.5 to 60°C) Operating Temperature
• -40 to 149°F (-40 to 65°C) Storage Temperature
• Less than 2% drift RH Stability
• 20 Seconds typical response time
• Capacitive with hydrophobic filter RH sensor type

Technical Literature:

RH Room Thermistor Data