Siemens Building Technology QAA2212.EWNN Sensor
The Siemens Building Technology QAA2212.EWNN Sensor is a high-precision room temperature sensor designed for accurate environmental monitoring in commercial and industrial HVACR control systems. This passive sensor utilizes a Platinum 1K Ohm Pt RTD (Resistance Temperature Detector) with a 385 alpha coefficient, ensuring stable resistance output and long-term reliability without the drift common in lower-grade components. Built for seamless integration, the unit features a 385a output signal and covers a standard operating localized range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius).
As a seasoned technician, you will appreciate the terminal block connection which simplifies field wiring within the professional plastic enclosure. The QAA2212.EWNN is a "blank front" model, meaning it has no display and no logo, making it the ideal choice for clean architectural aesthetics or installations where tampering with settings must be prevented. This unit serves as a direct replacement for 544-760B and is a reliable alternative to the QAA2212.EWSN, providing the same high-accuracy resistance temperature detector performance for building automation systems (BAS) and direct digital control (DDC) applications.
Key Benefits:- High-Accuracy Pt1000 Element: Features a 1k Ohm Platinum RTD for precise temperature sensing and linear resistance output.
- Architectural "No Logo" Design: The clean, no display housing is perfect for professional office spaces and school environments.
- Universal Compatibility: Passive resistive output integrates easily with most Siemens and third-party HVAC control systems.
- Robust Connection: Equipped with a standard terminal block for secure, low-voltage field wiring.
Is the QAA2212.EWNN compatible with non-Siemens controllers?
Yes, because this is a passive 1K Ohm Pt RTD (385 alpha) sensor, it is compatible with any controller calibrated to read a standard Platinum 1000-ohm resistance signal.
Does this model allow for local setpoint adjustment?
No, the QAA2212.EWNN is a sensing-only device with no HMI (Human Machine Interface) or setpoint sliders to ensure consistent system-wide control without local interference.
What is the difference between the EWNN and EWSN models?
The technical specifications are identical; however, the "NN" suffix indicates "No Logo" and "No Nameplate" branding on the front cover for a more discreet installation.
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.
Siemens Building Technology QAA2212.EWNN Sensor
The Siemens Building Technology QAA2212.EWNN Sensor is a high-precision room temperature sensor designed for accurate environmental monitoring in commercial and industrial HVACR control systems. This passive sensor utilizes a Platinum 1K Ohm Pt RTD (Resistance Temperature Detector) with a 385 alpha coefficient, ensuring stable resistance output and long-term reliability without the drift common in lower-grade components. Built for seamless integration, the unit features a 385a output signal and covers a standard operating localized range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius).
As a seasoned technician, you will appreciate the terminal block connection which simplifies field wiring within the professional plastic enclosure. The QAA2212.EWNN is a "blank front" model, meaning it has no display and no logo, making it the ideal choice for clean architectural aesthetics or installations where tampering with settings must be prevented. This unit serves as a direct replacement for 544-760B and is a reliable alternative to the QAA2212.EWSN, providing the same high-accuracy resistance temperature detector performance for building automation systems (BAS) and direct digital control (DDC) applications.
Key Benefits:- High-Accuracy Pt1000 Element: Features a 1k Ohm Platinum RTD for precise temperature sensing and linear resistance output.
- Architectural "No Logo" Design: The clean, no display housing is perfect for professional office spaces and school environments.
- Universal Compatibility: Passive resistive output integrates easily with most Siemens and third-party HVAC control systems.
- Robust Connection: Equipped with a standard terminal block for secure, low-voltage field wiring.
Is the QAA2212.EWNN compatible with non-Siemens controllers?
Yes, because this is a passive 1K Ohm Pt RTD (385 alpha) sensor, it is compatible with any controller calibrated to read a standard Platinum 1000-ohm resistance signal.
Does this model allow for local setpoint adjustment?
No, the QAA2212.EWNN is a sensing-only device with no HMI (Human Machine Interface) or setpoint sliders to ensure consistent system-wide control without local interference.
What is the difference between the EWNN and EWSN models?
The technical specifications are identical; however, the "NN" suffix indicates "No Logo" and "No Nameplate" branding on the front cover for a more discreet installation.
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.
Product Information
Product Information
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Description
The Siemens Building Technology QAA2212.EWNN Sensor is a high-precision room temperature sensor designed for accurate environmental monitoring in commercial and industrial HVACR control systems. This passive sensor utilizes a Platinum 1K Ohm Pt RTD (Resistance Temperature Detector) with a 385 alpha coefficient, ensuring stable resistance output and long-term reliability without the drift common in lower-grade components. Built for seamless integration, the unit features a 385a output signal and covers a standard operating localized range of 32 to 122 degrees Fahrenheit (0 to 50 degrees Celsius).
As a seasoned technician, you will appreciate the terminal block connection which simplifies field wiring within the professional plastic enclosure. The QAA2212.EWNN is a "blank front" model, meaning it has no display and no logo, making it the ideal choice for clean architectural aesthetics or installations where tampering with settings must be prevented. This unit serves as a direct replacement for 544-760B and is a reliable alternative to the QAA2212.EWSN, providing the same high-accuracy resistance temperature detector performance for building automation systems (BAS) and direct digital control (DDC) applications.
Key Benefits:- High-Accuracy Pt1000 Element: Features a 1k Ohm Platinum RTD for precise temperature sensing and linear resistance output.
- Architectural "No Logo" Design: The clean, no display housing is perfect for professional office spaces and school environments.
- Universal Compatibility: Passive resistive output integrates easily with most Siemens and third-party HVAC control systems.
- Robust Connection: Equipped with a standard terminal block for secure, low-voltage field wiring.
Is the QAA2212.EWNN compatible with non-Siemens controllers?
Yes, because this is a passive 1K Ohm Pt RTD (385 alpha) sensor, it is compatible with any controller calibrated to read a standard Platinum 1000-ohm resistance signal.
Does this model allow for local setpoint adjustment?
No, the QAA2212.EWNN is a sensing-only device with no HMI (Human Machine Interface) or setpoint sliders to ensure consistent system-wide control without local interference.
What is the difference between the EWNN and EWSN models?
The technical specifications are identical; however, the "NN" suffix indicates "No Logo" and "No Nameplate" branding on the front cover for a more discreet installation.
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.
