Siemens Building Technology QFA3171 Sensor
The Siemens Building Technology QFA3171 Sensor is a high-precision instrumentation solution engineered for demanding HVACR environments. This room humidity and temperature sensor utilizes a 2-wire 4-20mA output signal for both relative humidity (0-100% RH) and temperature monitoring, ensuring robust signal integrity over long cable runs in industrial or commercial facilities. Designed without a display to maintain a low profile and minimize field tampering, the unit features a reliable terminal block connection for secure electrical integration into any building automation system. The QFA3171 is specifically optimized for applications requiring rapid response times and high accuracy, such as laboratory climate control, pharmaceutical storage, and advanced ventilation plants. By leveraging capacitive humidity measurement technology, the sensor provides stable, long-term performance across a broad temperature sensing range (selectable between 0…50 °C, -35…35 °C, or -40…70 °C). This HVAC transmitter is the professional choice for contractors seeking Siemens Symaro quality in critical environmental monitoring.
Key Benefits:
- Dual 4-20mA Outputs: Provides dedicated analog signals for both RH and temperature, ideal for standard industrial controllers and PLCs.
- High Precision Sensing: Features ±2% accuracy across the entire humidity range, critical for maintaining strict climate tolerances.
- Field-Selectable Temperature Ranges: Offers flexibility for various climates and indoor requirements with adjustable hardware jumpers.
- Industrial-Grade Build: IP65/IP40 rated protection ensures durability in diverse mechanical room and facility settings.
- Fast Response Times: Engineered with a specialized measuring tip to detect rapid atmospheric changes, protecting sensitive inventory or equipment.
Common Questions:
Can the QFA3171 be used for outdoor applications?
While designed as a room sensor, the QFA3171 can be utilized in outdoor settings if paired with the optional AQF3100 outdoor mounting kit, which provides necessary radiation and weather shielding.
What power supply is required for this 4-20mA sensor?
The unit operates on a DC 13.5…35 V supply. As a loop-powered device, ensure your controller or external power source can accommodate the total loop resistance.
How do I change the temperature measurement range?
The temperature range is hardware-selectable via internal jumpers located on the circuit board, allowing you to match the 4-20mA scaling to your specific site needs.
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 QFA3171 Sensor
The Siemens Building Technology QFA3171 Sensor is a high-precision instrumentation solution engineered for demanding HVACR environments. This room humidity and temperature sensor utilizes a 2-wire 4-20mA output signal for both relative humidity (0-100% RH) and temperature monitoring, ensuring robust signal integrity over long cable runs in industrial or commercial facilities. Designed without a display to maintain a low profile and minimize field tampering, the unit features a reliable terminal block connection for secure electrical integration into any building automation system. The QFA3171 is specifically optimized for applications requiring rapid response times and high accuracy, such as laboratory climate control, pharmaceutical storage, and advanced ventilation plants. By leveraging capacitive humidity measurement technology, the sensor provides stable, long-term performance across a broad temperature sensing range (selectable between 0…50 °C, -35…35 °C, or -40…70 °C). This HVAC transmitter is the professional choice for contractors seeking Siemens Symaro quality in critical environmental monitoring.
Key Benefits:
- Dual 4-20mA Outputs: Provides dedicated analog signals for both RH and temperature, ideal for standard industrial controllers and PLCs.
- High Precision Sensing: Features ±2% accuracy across the entire humidity range, critical for maintaining strict climate tolerances.
- Field-Selectable Temperature Ranges: Offers flexibility for various climates and indoor requirements with adjustable hardware jumpers.
- Industrial-Grade Build: IP65/IP40 rated protection ensures durability in diverse mechanical room and facility settings.
- Fast Response Times: Engineered with a specialized measuring tip to detect rapid atmospheric changes, protecting sensitive inventory or equipment.
Common Questions:
Can the QFA3171 be used for outdoor applications?
While designed as a room sensor, the QFA3171 can be utilized in outdoor settings if paired with the optional AQF3100 outdoor mounting kit, which provides necessary radiation and weather shielding.
What power supply is required for this 4-20mA sensor?
The unit operates on a DC 13.5…35 V supply. As a loop-powered device, ensure your controller or external power source can accommodate the total loop resistance.
How do I change the temperature measurement range?
The temperature range is hardware-selectable via internal jumpers located on the circuit board, allowing you to match the 4-20mA scaling to your specific site needs.
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 QFA3171 Sensor is a high-precision instrumentation solution engineered for demanding HVACR environments. This room humidity and temperature sensor utilizes a 2-wire 4-20mA output signal for both relative humidity (0-100% RH) and temperature monitoring, ensuring robust signal integrity over long cable runs in industrial or commercial facilities. Designed without a display to maintain a low profile and minimize field tampering, the unit features a reliable terminal block connection for secure electrical integration into any building automation system. The QFA3171 is specifically optimized for applications requiring rapid response times and high accuracy, such as laboratory climate control, pharmaceutical storage, and advanced ventilation plants. By leveraging capacitive humidity measurement technology, the sensor provides stable, long-term performance across a broad temperature sensing range (selectable between 0…50 °C, -35…35 °C, or -40…70 °C). This HVAC transmitter is the professional choice for contractors seeking Siemens Symaro quality in critical environmental monitoring.
Key Benefits:
- Dual 4-20mA Outputs: Provides dedicated analog signals for both RH and temperature, ideal for standard industrial controllers and PLCs.
- High Precision Sensing: Features ±2% accuracy across the entire humidity range, critical for maintaining strict climate tolerances.
- Field-Selectable Temperature Ranges: Offers flexibility for various climates and indoor requirements with adjustable hardware jumpers.
- Industrial-Grade Build: IP65/IP40 rated protection ensures durability in diverse mechanical room and facility settings.
- Fast Response Times: Engineered with a specialized measuring tip to detect rapid atmospheric changes, protecting sensitive inventory or equipment.
Common Questions:
Can the QFA3171 be used for outdoor applications?
While designed as a room sensor, the QFA3171 can be utilized in outdoor settings if paired with the optional AQF3100 outdoor mounting kit, which provides necessary radiation and weather shielding.
What power supply is required for this 4-20mA sensor?
The unit operates on a DC 13.5…35 V supply. As a loop-powered device, ensure your controller or external power source can accommodate the total loop resistance.
How do I change the temperature measurement range?
The temperature range is hardware-selectable via internal jumpers located on the circuit board, allowing you to match the 4-20mA scaling to your specific site needs.
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.
