MAMAC Systems TE-703-D-1-A-3 Temperature Sensor

For high-demand mechanical rooms and industrial fluid monitoring, the MAMAC Systems TE-703-D-1-A-3 provides a ruggedized solution for precise immersion temperature sensing. This assembly features a 100 Ohm Platinum RTD element, adhering to the DIN 43760 (Alpha 385) standard for superior linearity and long-term stability in hydronic systems. The 4-inch 304 stainless steel probe is hermetically sealed to prevent moisture migration and localized self-heating errors, ensuring accurate data for chilled water, hot water, and low-pressure steam applications. Housed in a NEMA 4 (IP65) powder-coated steel enclosure with welded seams and a gasketed cover, this sensor is purpose-built for unconditioned environments where dirt, oil vapor, and heavy condensation are prevalent. The integrated 1/2" NPT adapter facilitates a secure, leak-proof interface with standard thermowells, while the 18-gauge cold-rolled steel construction delivers the mechanical vibration resistance required by veteran contractors for commercial HVAC control systems and building automation integration.

• Industrial Durability: NEMA 4/IP65 rated powder-coated steel enclosure protects internal terminations from harsh mechanical room contaminants.
• Precision Measurement: Utilizes a Pt100 RTD sensor with a positive temperature coefficient to ensure repeatable temperature-resistance accuracy.
• Robust Probe Design: The 304 stainless steel probe offers high corrosion resistance and thermal shock immunity for fluid immersion.
• Standardized Integration: The 1/2" NPT brass adapter ensures compatibility with most North American thermowell installations.

Is this sensor compatible with my 3-wire or 4-wire controller?
The TE-703-D-1-A-3 typically ships with two-wire pigtail terminations for the 100 Ohm Platinum RTD. While it can be integrated into 3 or 4-wire bridge circuits by jumping the leads at the transmitter, check your specific BMS (Building Management System) input requirements for lead-wire resistance compensation.

Can this probe be used without a thermowell?
While the 304 SS probe is hermetically sealed, it is designed for use within a thermowell in high-pressure fluid lines to allow for sensor replacement without draining the system. Direct immersion is possible in low-pressure, non-corrosive tanks if the 1/2" NPT fitting is properly sealed.

What is the operating range for unconditioned environments?
This model is rated for process temperatures from -40°F to 210°F (-40°C to 100°C), with the NEMA 4 enclosure safeguarding the connection against the high humidity and oil vapors common in industrial plant settings.

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.