ACI A/RH2 – Furneco

ACI A/RH2 HUMIDITY TRANSMITTER | ±2% ACCURATE HVAC & BAS SENSOR

The A/RH2 Series is engineered for long-term stability using advanced capacitive technology that offers excellent resistance to dust, dirt, and common environmental chemicals. Each unit includes on-board DIP switches, allowing users to toggle between 4-20 mA, 0-5 VDC, or 0-10 VDC signals to meet varying application requirements. These sensors are factory-calibrated in NIST-traceable chambers and feature a hydrophobic filter to protect the element from moisture and contaminants.

PRODUCT USES:

Building Automation: Core sensor for managing commercial HVAC and air quality.
Controlled Environments: Monitoring for cleanrooms, laboratories, and data centers.
System Protection: Managing humidification and dehumidification cycles.
Preservation: Environmental control for museums, schools, and office buildings.

Technical Sheets

Instruction Manual

Catalog Page

Specifications

ACI A/RH2 HUMIDITY TRANSMITTER | ±2% ACCURATE HVAC & BAS SENSOR – KEY SPECIFICATIONS

Accuracy: ±2% relative humidity (RH) at 77°F (25°C) from 10% to 95%.
Stability: Less than ±2% drift over a 5-year period.
Measurement Range: 0% to 100% relative humidity.
Output Signals: Field-selectable 4-20 mA (default), 0-5 VDC, or 0-10 VDC.
Supply Voltage: 12-40 VDC or 18-28 VAC depending on the output configuration.
Response Time: Typically 20 seconds for a 63% step change.
Enclosure Options: Room (Delta style), Duct (Euro or NEMA 4X), and Outside Air (Weatherproof).

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