Siemens Building Technology QAE2020.015 Temperature Sensor

The Siemens QAE2020.015 is a professional-grade immersion temperature sensor built for high-accuracy fluid monitoring in hydronic HVAC systems. Engineered with a precision 1k ohm Nickel RTD (LG-Ni1000) sensing element, this unit delivers a stable output at 32°F, ensuring reliable communication with Siemens Desigo, Talis, or any third-party Building Automation System (BAS) that accepts an LG-Ni input. The 6-inch 300-series stainless steel probe provides a fast response time and superior thermal conductivity, making it ideal for monitoring supply and return lines in boilers and chillers.

Designed for the field technician, the QAE2020.015 includes a durable brass thermowell to protect the sensing element from pressure and flow-induced vibration. This configuration allows for sensor replacement or maintenance without the need to drain the loop. The NEMA 1 rated metal housing and lead wire connections facilitate straightforward installation in commercial environments. With an operating temperature range of 0°F to 250°F, this sensor is a versatile solution for hot water, chilled water, and glycol-based loops requiring precise HVAC temperature control.

• Precision LG-Ni1000 Element: High-accuracy 1k ohm Ni RTD sensing element for repeatable performance in demanding automation control environments.
• Complete Immersion Assembly: Features a 6-inch stainless steel probe and includes a matching thermowell for expedited field mounting in heavy-duty piping.
• Wide Operating Envelope: Rated for temperatures between 0°F and 250°F, making it suitable for both heating and cooling hydronic applications.
• Direct BAS Compatibility: Seamlessly integrates with Siemens building technology controllers and North American DDC systems using resistance-based inputs.

Is this sensor compatible with non-Siemens controllers?
Yes, as long as the controller is configured to scale a 1k ohm LG-Ni (Nickel RTD) curve at 32°F, the QAE2020.015 provides a standard resistance signal for universal integration.

Can the sensor be serviced without shutting down the system?
By utilizing the included thermowell, technicians can remove and replace the sensor probe without breaking the seal of the piping or draining the fluid, minimizing downtime.

What is the enclosure rating for this unit?
The Siemens QAE2020.015 features a rugged metallic housing with a NEMA 1 rating, designed for indoor mechanical room installations.

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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.