Siemens Building Technology QFA32SS.FWNN Sensor
The Siemens Building Technology QFA32SS.FWNN Sensor is a high-performance wall-mounted unit engineered for precision environmental monitoring in demanding commercial HVACR applications. Designed for seamless integration with building automation systems, this room unit provides simultaneous measurement of relative humidity and temperature with a 2% accuracy rating. The hardware features a field-selectable output architecture, allowing technicians to toggle between 0-10Vdc, 0-5Vdc, or 4-20mA signals via onboard jumpers to match specific controller requirements. This "No Logo" version maintains a clean, professional aesthetic while the integrated full HMI display and soft-touch buttons provide immediate onsite visibility and local setpoint adjustment capabilities. Its terminal block connection ensures a secure, low-resistance interface for 18 to 22 AWG field wiring, while the patented housing design optimizes airflow across the platinum sensing elements to prevent stagnant air readings and improve response time.
Key Benefits for Contractors- Dual-Signal Versatility: Field-selectable 4-20mA or 0-10Vdc analog outputs eliminate the need to carry multiple SKUs for different controller types.
- Precision Humidity Control: Delivers high-accuracy sensing across a 0-100% RH range, critical for laboratories, data centers, and cleanroom environments.
- Integrated Override Function: Features a momentary override key that allows occupants to manually signal the BMS for after-hours operation or occupancy mode shifts.
- Rugged HMI Interface: The backlit digital display provides real-time diagnostics and allows for 55°F to 95°F setpoint tuning without needing external tools.
- Streamlined Installation: Designed for standard 2” x 4” electrical box mounting with included anchors and screws for direct-to-wall applications.
How do I switch the output signal between voltage and current?
The sensing unit uses internal jumpers to define the signal type. For a 0-10Vdc output, the jumper should be set across the bottom and middle pins; for 4-20mA, the circuit is configured through the terminal block wiring as specified in the Siemens technical schematic.
Can the display be configured to limit user access?
Yes, the full HMI is highly configurable. Technicians can lock out specific setpoint ranges or hide certain measured values to prevent unauthorized adjustments in high-traffic commercial spaces.
What is the maximum wiring distance for this sensor?
For optimal signal integrity, the maximum recommended run is 750 feet when using 18 AWG wire, or 300 feet when using 22 AWG wire, to ensure minimal voltage drop and accurate data transmission to the controller.
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.FWNN Sensor
The Siemens Building Technology QFA32SS.FWNN Sensor is a high-performance wall-mounted unit engineered for precision environmental monitoring in demanding commercial HVACR applications. Designed for seamless integration with building automation systems, this room unit provides simultaneous measurement of relative humidity and temperature with a 2% accuracy rating. The hardware features a field-selectable output architecture, allowing technicians to toggle between 0-10Vdc, 0-5Vdc, or 4-20mA signals via onboard jumpers to match specific controller requirements. This "No Logo" version maintains a clean, professional aesthetic while the integrated full HMI display and soft-touch buttons provide immediate onsite visibility and local setpoint adjustment capabilities. Its terminal block connection ensures a secure, low-resistance interface for 18 to 22 AWG field wiring, while the patented housing design optimizes airflow across the platinum sensing elements to prevent stagnant air readings and improve response time.
Key Benefits for Contractors- Dual-Signal Versatility: Field-selectable 4-20mA or 0-10Vdc analog outputs eliminate the need to carry multiple SKUs for different controller types.
- Precision Humidity Control: Delivers high-accuracy sensing across a 0-100% RH range, critical for laboratories, data centers, and cleanroom environments.
- Integrated Override Function: Features a momentary override key that allows occupants to manually signal the BMS for after-hours operation or occupancy mode shifts.
- Rugged HMI Interface: The backlit digital display provides real-time diagnostics and allows for 55°F to 95°F setpoint tuning without needing external tools.
- Streamlined Installation: Designed for standard 2” x 4” electrical box mounting with included anchors and screws for direct-to-wall applications.
How do I switch the output signal between voltage and current?
The sensing unit uses internal jumpers to define the signal type. For a 0-10Vdc output, the jumper should be set across the bottom and middle pins; for 4-20mA, the circuit is configured through the terminal block wiring as specified in the Siemens technical schematic.
Can the display be configured to limit user access?
Yes, the full HMI is highly configurable. Technicians can lock out specific setpoint ranges or hide certain measured values to prevent unauthorized adjustments in high-traffic commercial spaces.
What is the maximum wiring distance for this sensor?
For optimal signal integrity, the maximum recommended run is 750 feet when using 18 AWG wire, or 300 feet when using 22 AWG wire, to ensure minimal voltage drop and accurate data transmission to the controller.
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.
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Description
The Siemens Building Technology QFA32SS.FWNN Sensor is a high-performance wall-mounted unit engineered for precision environmental monitoring in demanding commercial HVACR applications. Designed for seamless integration with building automation systems, this room unit provides simultaneous measurement of relative humidity and temperature with a 2% accuracy rating. The hardware features a field-selectable output architecture, allowing technicians to toggle between 0-10Vdc, 0-5Vdc, or 4-20mA signals via onboard jumpers to match specific controller requirements. This "No Logo" version maintains a clean, professional aesthetic while the integrated full HMI display and soft-touch buttons provide immediate onsite visibility and local setpoint adjustment capabilities. Its terminal block connection ensures a secure, low-resistance interface for 18 to 22 AWG field wiring, while the patented housing design optimizes airflow across the platinum sensing elements to prevent stagnant air readings and improve response time.
Key Benefits for Contractors- Dual-Signal Versatility: Field-selectable 4-20mA or 0-10Vdc analog outputs eliminate the need to carry multiple SKUs for different controller types.
- Precision Humidity Control: Delivers high-accuracy sensing across a 0-100% RH range, critical for laboratories, data centers, and cleanroom environments.
- Integrated Override Function: Features a momentary override key that allows occupants to manually signal the BMS for after-hours operation or occupancy mode shifts.
- Rugged HMI Interface: The backlit digital display provides real-time diagnostics and allows for 55°F to 95°F setpoint tuning without needing external tools.
- Streamlined Installation: Designed for standard 2” x 4” electrical box mounting with included anchors and screws for direct-to-wall applications.
How do I switch the output signal between voltage and current?
The sensing unit uses internal jumpers to define the signal type. For a 0-10Vdc output, the jumper should be set across the bottom and middle pins; for 4-20mA, the circuit is configured through the terminal block wiring as specified in the Siemens technical schematic.
Can the display be configured to limit user access?
Yes, the full HMI is highly configurable. Technicians can lock out specific setpoint ranges or hide certain measured values to prevent unauthorized adjustments in high-traffic commercial spaces.
What is the maximum wiring distance for this sensor?
For optimal signal integrity, the maximum recommended run is 750 feet when using 18 AWG wire, or 300 feet when using 22 AWG wire, to ensure minimal voltage drop and accurate data transmission to the controller.
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.
