Siemens Building Technology QFA32SS.EWSN Sensor
The Siemens Building Technology QFA32SS.EWSN is a professional-grade Room Relative Humidity and Temperature Sensor designed for high-accuracy monitoring in commercial BAS environments. Engineered for versatility, this unit features a selectable 0-10Vdc or 4-20mA output signal for both humidity and temperature, allowing for seamless integration with APOGEE controllers and other third-party building automation systems. With a 2% RH accuracy rating within the 10-90% range, it provides the precision required for critical space control in hospitals, data centers, and clean rooms. The QFA32SS.EWSN is a "sensing only" model (E-version) with a blank white plastic cover and no display, making it ideal for high-traffic or unsupervised areas where tamper resistance is a priority. Technical installation is streamlined via a standard terminal block connection, and the low-profile housing includes strategically placed ventilation slots to optimize airflow across the capacitive humidity sensing element for faster response times and improved thermal stability.
Key Benefits:
- Dual Output Versatility: Field-selectable 0-10Vdc, 0-5Vdc, or 4-20mA analog signals provide maximum compatibility with various HVAC field panels and terminal equipment controllers.
- High Precision Sensing: Delivers 2% humidity accuracy and reliable temperature monitoring from 32°F to 122°F (0°C to 50°C).
- Robust Design: The blank front cover without a local HMI reduces the risk of unauthorized setpoint adjustments in public or commercial spaces.
- Efficient Installation: Designed to mount on a standard 2” x 4” electrical box with terminal block wiring for secure, long-term connectivity.
- Wide Operating Range: Supports 24 VAC/VDC power requirements, accommodating most standard low-voltage control circuits.
Common Questions:
How do I change the output signal from 0-10V to 4-20mA?
The output signal is determined by internal jumper settings or dip switches on the circuit board. Always reference the Series 3200 technical specification sheet to ensure the correct configuration before powering the 24V circuit.
Does this unit require a separate temperature sensor?
No, the QFA32SS.EWSN integrates both a humidity transmitter and a temperature sensor in a single housing, reducing labor and material costs for multi-variable monitoring.
Can this sensor be used in high-purity environments?
Yes, the 2% accuracy and no-display tamper-resistant housing make it a standard choice for laboratories and pharmaceutical storage areas requiring reliable RH and Temp data.
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.
Original: $182.14
-65%$182.14
$63.75Siemens Building Technology QFA32SS.EWSN Sensor
The Siemens Building Technology QFA32SS.EWSN is a professional-grade Room Relative Humidity and Temperature Sensor designed for high-accuracy monitoring in commercial BAS environments. Engineered for versatility, this unit features a selectable 0-10Vdc or 4-20mA output signal for both humidity and temperature, allowing for seamless integration with APOGEE controllers and other third-party building automation systems. With a 2% RH accuracy rating within the 10-90% range, it provides the precision required for critical space control in hospitals, data centers, and clean rooms. The QFA32SS.EWSN is a "sensing only" model (E-version) with a blank white plastic cover and no display, making it ideal for high-traffic or unsupervised areas where tamper resistance is a priority. Technical installation is streamlined via a standard terminal block connection, and the low-profile housing includes strategically placed ventilation slots to optimize airflow across the capacitive humidity sensing element for faster response times and improved thermal stability.
Key Benefits:
- Dual Output Versatility: Field-selectable 0-10Vdc, 0-5Vdc, or 4-20mA analog signals provide maximum compatibility with various HVAC field panels and terminal equipment controllers.
- High Precision Sensing: Delivers 2% humidity accuracy and reliable temperature monitoring from 32°F to 122°F (0°C to 50°C).
- Robust Design: The blank front cover without a local HMI reduces the risk of unauthorized setpoint adjustments in public or commercial spaces.
- Efficient Installation: Designed to mount on a standard 2” x 4” electrical box with terminal block wiring for secure, long-term connectivity.
- Wide Operating Range: Supports 24 VAC/VDC power requirements, accommodating most standard low-voltage control circuits.
Common Questions:
How do I change the output signal from 0-10V to 4-20mA?
The output signal is determined by internal jumper settings or dip switches on the circuit board. Always reference the Series 3200 technical specification sheet to ensure the correct configuration before powering the 24V circuit.
Does this unit require a separate temperature sensor?
No, the QFA32SS.EWSN integrates both a humidity transmitter and a temperature sensor in a single housing, reducing labor and material costs for multi-variable monitoring.
Can this sensor be used in high-purity environments?
Yes, the 2% accuracy and no-display tamper-resistant housing make it a standard choice for laboratories and pharmaceutical storage areas requiring reliable RH and Temp data.
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 QFA32SS.EWSN is a professional-grade Room Relative Humidity and Temperature Sensor designed for high-accuracy monitoring in commercial BAS environments. Engineered for versatility, this unit features a selectable 0-10Vdc or 4-20mA output signal for both humidity and temperature, allowing for seamless integration with APOGEE controllers and other third-party building automation systems. With a 2% RH accuracy rating within the 10-90% range, it provides the precision required for critical space control in hospitals, data centers, and clean rooms. The QFA32SS.EWSN is a "sensing only" model (E-version) with a blank white plastic cover and no display, making it ideal for high-traffic or unsupervised areas where tamper resistance is a priority. Technical installation is streamlined via a standard terminal block connection, and the low-profile housing includes strategically placed ventilation slots to optimize airflow across the capacitive humidity sensing element for faster response times and improved thermal stability.
Key Benefits:
- Dual Output Versatility: Field-selectable 0-10Vdc, 0-5Vdc, or 4-20mA analog signals provide maximum compatibility with various HVAC field panels and terminal equipment controllers.
- High Precision Sensing: Delivers 2% humidity accuracy and reliable temperature monitoring from 32°F to 122°F (0°C to 50°C).
- Robust Design: The blank front cover without a local HMI reduces the risk of unauthorized setpoint adjustments in public or commercial spaces.
- Efficient Installation: Designed to mount on a standard 2” x 4” electrical box with terminal block wiring for secure, long-term connectivity.
- Wide Operating Range: Supports 24 VAC/VDC power requirements, accommodating most standard low-voltage control circuits.
Common Questions:
How do I change the output signal from 0-10V to 4-20mA?
The output signal is determined by internal jumper settings or dip switches on the circuit board. Always reference the Series 3200 technical specification sheet to ensure the correct configuration before powering the 24V circuit.
Does this unit require a separate temperature sensor?
No, the QFA32SS.EWSN integrates both a humidity transmitter and a temperature sensor in a single housing, reducing labor and material costs for multi-variable monitoring.
Can this sensor be used in high-purity environments?
Yes, the 2% accuracy and no-display tamper-resistant housing make it a standard choice for laboratories and pharmaceutical storage areas requiring reliable RH and Temp data.
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.
