ACI LOW TEMPERATURE DUCT SENSORS & TRANSMITTERS
The ACI Low Temperature series is engineered to overcome the limitations of standard sensors in extreme cold. These units typically use a 3-wire Platinum RTD (100 or 1,000 Ohm) to compensate for lead wire resistance, ensuring high accuracy over long distances. The sensing elements are manufactured with a proprietary process to eliminate moisture effects and are housed in various enclosures ranging from galvanized steel to weatherproof NEMA 4X options. These sensors are frequently used in freezers, data centers, and medical facilities where precise thermal management is critical.
Specifications
ACI LOW TEMPERATURE DUCT SENSORS & TRANSMITTERS – KEY SPECIFICATIONS
- Operating Range (Sensor): -324°F to 302°F (-198°C to 150°C).
- Operating Range (Transmitter): -40°F to 185°F (-40°C to 85°C).
- Output Signals: 4-20 mA (2-wire loop), 1-5 VDC, or 2-10 VDC.
- Accuracy: ±0.12% (Class B) for sensors; ±0.2% to ±0.5% for transmitters depending on span.
- Probe Materials: 316 Stainless Steel (0.250″ diameter) for superior corrosion resistance.
Standard Probe Lengths: 4″, 8″, 12″, and 18″.
- Lead Wires: 8 ft (2.44 m) of Etched Teflon (PTFE) insulated silver-plated copper leads.
- Enclosure Ratings:
- GD: Galvanized Steel (NEMA 1/IP10).
- BB: Aluminum Weatherproof (NEMA 3R).
- 4X: Watertight Polystyrene (NEMA 4X/IP66).
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