Siemens Building Technology QFA32SS.EWNN Sensor
The Siemens Building Technology QFA32SS.EWNN Sensor is a high-precision field device designed for critical HVAC monitoring and Building Automation Systems (BAS). Built without a display (No HMI) and featuring a clean "No Logo" aesthetic, this room humidity and temperature sensor provides 2-percent accuracy for demanding environments like laboratories, data centers, and clean rooms. It supports field-selectable 0-10Vdc, 0-5Vdc, and 4-20mA output signals, ensuring seamless integration with various controllers and energy management systems.
Engineered for long-term stability, the unit utilizes a capacitive humidity sensing element to measure a full range of 0-100% RH. The integrated temperature sensor supports a measuring range of 32 to 122°F (0 to 50°C), outputting the data through the same selectable signal architecture. Professional installers will appreciate the standard terminal block connection and the 2x4 mounting compatibility, making it a reliable choice for building control applications that require high-density sensing without visual clutter.
- Selectable Analog Outputs: Field-configurable for 4-20mA, 0-10Vdc, or 0-5Vdc, providing universal HVAC controller compatibility.
- High-Precision Monitoring: Delivered with 2% relative humidity accuracy and precise temperature detection for IAQ (Indoor Air Quality) management.
- Industrial Build: Housed in a durable white polycarbonate enclosure designed for standard wall-mount installation using terminal block wiring.
- Versatile Application: Ideal for dehumidification control and process monitoring in commercial and pharmaceutical facilities.
Common Questions
How do I switch the output signal between voltage and current?
The output signal is determined by jumper settings on the internal PCB. You can select between 0-10V, 0-5V, or 4-20mA for both the humidity and temperature channels during the commissioning phase.
Does this unit require a specific power supply?
Yes, the sensor typically operates on 24 Vac or 13.5 to 35 Vdc. When using the 4-20mA current loop output, ensure your power supply and loop resistance are matched to maintain signal integrity.
Is the sensing element replaceable?
While the sensor is designed for high reliability and maintenance-free operation, if the sensing element is contaminated by harsh chemicals, the entire unit usually requires replacement to ensure accuracy is maintained within HVAC standards.
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 QFA32SS.EWNN Sensor
The Siemens Building Technology QFA32SS.EWNN Sensor is a high-precision field device designed for critical HVAC monitoring and Building Automation Systems (BAS). Built without a display (No HMI) and featuring a clean "No Logo" aesthetic, this room humidity and temperature sensor provides 2-percent accuracy for demanding environments like laboratories, data centers, and clean rooms. It supports field-selectable 0-10Vdc, 0-5Vdc, and 4-20mA output signals, ensuring seamless integration with various controllers and energy management systems.
Engineered for long-term stability, the unit utilizes a capacitive humidity sensing element to measure a full range of 0-100% RH. The integrated temperature sensor supports a measuring range of 32 to 122°F (0 to 50°C), outputting the data through the same selectable signal architecture. Professional installers will appreciate the standard terminal block connection and the 2x4 mounting compatibility, making it a reliable choice for building control applications that require high-density sensing without visual clutter.
- Selectable Analog Outputs: Field-configurable for 4-20mA, 0-10Vdc, or 0-5Vdc, providing universal HVAC controller compatibility.
- High-Precision Monitoring: Delivered with 2% relative humidity accuracy and precise temperature detection for IAQ (Indoor Air Quality) management.
- Industrial Build: Housed in a durable white polycarbonate enclosure designed for standard wall-mount installation using terminal block wiring.
- Versatile Application: Ideal for dehumidification control and process monitoring in commercial and pharmaceutical facilities.
Common Questions
How do I switch the output signal between voltage and current?
The output signal is determined by jumper settings on the internal PCB. You can select between 0-10V, 0-5V, or 4-20mA for both the humidity and temperature channels during the commissioning phase.
Does this unit require a specific power supply?
Yes, the sensor typically operates on 24 Vac or 13.5 to 35 Vdc. When using the 4-20mA current loop output, ensure your power supply and loop resistance are matched to maintain signal integrity.
Is the sensing element replaceable?
While the sensor is designed for high reliability and maintenance-free operation, if the sensing element is contaminated by harsh chemicals, the entire unit usually requires replacement to ensure accuracy is maintained within HVAC standards.
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
Shipping & Returns
Shipping & Returns
Description
The Siemens Building Technology QFA32SS.EWNN Sensor is a high-precision field device designed for critical HVAC monitoring and Building Automation Systems (BAS). Built without a display (No HMI) and featuring a clean "No Logo" aesthetic, this room humidity and temperature sensor provides 2-percent accuracy for demanding environments like laboratories, data centers, and clean rooms. It supports field-selectable 0-10Vdc, 0-5Vdc, and 4-20mA output signals, ensuring seamless integration with various controllers and energy management systems.
Engineered for long-term stability, the unit utilizes a capacitive humidity sensing element to measure a full range of 0-100% RH. The integrated temperature sensor supports a measuring range of 32 to 122°F (0 to 50°C), outputting the data through the same selectable signal architecture. Professional installers will appreciate the standard terminal block connection and the 2x4 mounting compatibility, making it a reliable choice for building control applications that require high-density sensing without visual clutter.
- Selectable Analog Outputs: Field-configurable for 4-20mA, 0-10Vdc, or 0-5Vdc, providing universal HVAC controller compatibility.
- High-Precision Monitoring: Delivered with 2% relative humidity accuracy and precise temperature detection for IAQ (Indoor Air Quality) management.
- Industrial Build: Housed in a durable white polycarbonate enclosure designed for standard wall-mount installation using terminal block wiring.
- Versatile Application: Ideal for dehumidification control and process monitoring in commercial and pharmaceutical facilities.
Common Questions
How do I switch the output signal between voltage and current?
The output signal is determined by jumper settings on the internal PCB. You can select between 0-10V, 0-5V, or 4-20mA for both the humidity and temperature channels during the commissioning phase.
Does this unit require a specific power supply?
Yes, the sensor typically operates on 24 Vac or 13.5 to 35 Vdc. When using the 4-20mA current loop output, ensure your power supply and loop resistance are matched to maintain signal integrity.
Is the sensing element replaceable?
While the sensor is designed for high reliability and maintenance-free operation, if the sensing element is contaminated by harsh chemicals, the entire unit usually requires replacement to ensure accuracy is maintained within HVAC standards.
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.
