SERIES ACI A/RH TT

ACI A/RH TT HUMIDITY & TEMPERATURE TRANSMITTER | BACNET & 4-20mA COMPATIBLE

The A/RH TT series utilizes a thermoset polymer capacitive sensing element paired with a factory-applied filter (hygroscopic or hydrophobic) to ensure long-term stability and protection against moisture, dust, and chemicals. These units offer maximum flexibility through on-board DIP switches, allowing users to select between 4-20 mA, 0-5 VDC, or 0-10 VDC output signals. The series is available in room, duct, remote probe, and outdoor configurations, often backed by a five-year limited warranty.

PRODUCT USES:

Building Automation: Core sensor for commercial HVAC and heating/cooling systems.
Critical Environments: Humidity control in hospitals, cleanrooms, and data centers.
Industrial Monitoring: Supply and return air sensing for pharmaceutical or process control.
Outdoor Sensing: Monitoring ambient air conditions in economizers.

Technical Sheets

Instruction Manual

Catalog Page

Specifications

ACI A/RH TT HUMIDITY & TEMOERATURE TRANSMITTER | BACNET & 4-20mA COMPATIBLE – KEY SPECIFICATIONS

RH Accuracy: Available in ±1%, ±2%, ±3%, or ±5% accuracy tiers.
Output Signals: Field-selectable: 4-20 mA (default), 0-5 VDC, or 0-10 VDC.
Temperature Ranges: Standard operating range of 32° to 122°F (0° to 50°C) for room units.
Supply Voltage: 15-40 VDC or 18-28 VAC depending on load and output type.
Calibration: Single-point field calibration via increment/decrement DIP switches (±0.5% RH steps).
Enclosure Ratings: NEMA 1 (Room), NEMA 3R/4X (Duct/Outside), or IP66 (Remote).

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