ACI IMMERSION THERMISTORS

Automation Components Immersion Thermistors The Immersion sensor is a single point temperature sensor that is designed for use with electronic controllers in commercial heating and cooling building management systems. It is available with multiple thermistor or RTD options.

CORE FEATURES

• Dual-Encapsulation: The thermistor beads are double-encapsulated in thermally conductive epoxy and a 304 Stainless Steel probe to prevent moisture migration and long-term drift. [1, 3]
• Interchangeability: Features highly accurate, interchangeable sensing elements that eliminate the need for field calibration. [3, 4]
• Rugged Enclosures: Available in multiple housing styles, including:
  • Plastic (PB/BB): Lightweight and corrosion-resistant. [3]
  • Metal (GD): Durable galvanized steel for mechanical rooms. [1, 3]
  • NEMA 4X (Bell Box): Weatherproof for outdoor cooling towers or wash-down areas. [1]
  • Versatile Mounting: Designed with a 1/2″ NPT male thread to fit standard thermowells, which allows for sensor removal without draining the system. [2, 3]