MAMAC Systems TE-703-C-12-A-2 Temperature Sensor

The MAMAC Systems TE-703-C-12-A-2 is a professional-grade immersion temperature sensor designed for precise fluid monitoring in hydronic systems. This unit features a 10,000 Ohm NTC Thermistor (Type II), ensuring high accuracy and stability across standard HVAC operating ranges. Built for durability in demanding mechanical rooms, the sensor is housed in a NEMA 1 galvanized steel enclosure and utilizes a 4-inch 304 stainless steel probe to prevent corrosion and ensure rapid thermal transfer. The 1/4" NPT adapter allows for seamless integration into standard thermowells, making it a reliable choice for BAS (Building Automation Systems) and chiller plant control applications where signal integrity is critical.

Technical Specifications & Field Benefits:

• Interchangeable Thermistor: The 10K Type 2 NTC element provides industry-standard resistance curves compatible with most DDC controllers.
• Rugged Construction: The NEMA 1 rated enclosure protects internal wiring and terminations from physical damage and debris.
• Thermal Conductivity: The 304 stainless steel probe is engineered for high-pressure environments and long-term immersion.
• Field Installation: Features a standard 1/4" NPT brass adapter for secure mounting and leak-free performance.
• Stability: Low drift characteristics ensure the TE-703 immersion sensor maintains calibration over extended duty cycles.

Common Contractor Questions:

What is the resistance at 77°F (25°C) for this sensor?
As a Type II 10K thermistor, it provides exactly 10,000 Ohms at 77°F, following the standard R/T curve used by major control manufacturers.

Is this sensor compatible with my existing thermowell?
This model includes a 4-inch probe and a 1/4" NPT fitting. It is designed to fit standard 1/4" NPT thermowells commonly found in chilled water and hot water piping.

Can the enclosure handle outdoor applications?
The NEMA 1 enclosure is intended for indoor use. For outdoor or high-moisture environments, a NEMA 4 or weather-shielded enclosure would be required.

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.