Automation Components Inc (ACI) A/CP-I-4-GD Sensor

The Automation Components Inc (ACI) A/CP-I-4-GD Sensor is a high-performance 10K Type II thermistor designed for precision temperature monitoring in HVAC Building Automation Systems (BAS). This immersion temperature sensor features a 4-inch 304 stainless steel probe and is housed in a durable NEMA 1 galvanized metal box. To ensure long-term reliability in demanding environments like chilled water systems, boilers, and hot water tanks, the sensing element is double encapsulated to prevent moisture infiltration and sensor drift. The unit comes standard with 14-inch etched Teflon lead wires for superior chemical resistance and thermal stability. These immersion sensors include a two-part welded thermowell with 1/2" NPT threads, facilitating easy installation into pipes while protecting the probe from direct fluid contact. Whether integrated into light industrial applications or commercial hydronic HVAC systems, the A/CP-I-4-GD delivers highly accurate, non-linear resistance outputs to your controller.

Key Benefits:

• Enhanced Durability: The double encapsulated sensor design provides a hermetic seal against humidity and condensation, reducing the risk of failure in chiller applications.
• High Accuracy: Features a 10K Type II thermistor element that provides precise temperature feedback for optimized energy management systems.
• Simplified Installation: Includes a welded thermowell and galvanized enclosure, offering a complete out-of-the-box solution for 1/2" NPT pipe fittings.
• Robust Lead Wires: Etched Teflon lead wires prevent insulation breakdown and offer better durability than standard PVC alternatives.
• System Compatibility: Designed for seamless integration with major Building Automation Systems and HVAC controllers.

Common Questions:

Can this sensor be used in high-velocity water lines?
The included welded thermowells are ideal for standard applications but are not intended for high-pressure or high-velocity moving water where wake frequency could cause failure. For those environments, a machined thermowell is recommended.

Is thermal grease required for installation?
While the probe is designed for a tight fit, applying thermal grease to the tip of the stainless steel probe before inserting it into the well is a best practice to ensure the fastest response time and most accurate readings.

What is the purpose of the foam pad?
The included foam pad helps provide a thermal buffer and reduces air leakage at the mounting point, ensuring the sensor measures the media temperature rather than the ambient air around the enclosure.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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