
Siemens Building Technology QFA3230.FWSN Sensor
The Siemens QFA3230.FWSN is a high-precision room relative humidity sensor engineered for demanding building automation environments. Designed to interface seamlessly with controllers via 0-10Vdc or 4-20mA selectable outputs, this unit provides critical environmental data for variable air volume (VAV) systems and air handling units (AHUs). It offers a full 0-100% RH measurement range paired with a 10k? Type II thermistor for integrated temperature monitoring, eliminating the need for separate sensors in the zone. This specific model features an on-board LCD display and a manual setpoint override, allowing for immediate localized feedback and field adjustments without a service tool. The capacitive humidity sensing element ensures long-term stability and resistance to drift, while the removable terminal block simplifies field wiring for contractors during installation or maintenance cycles.
Key Benefits:- Dual-signal flexibility with field-selectable 0-10Vdc or 4-20mA analog outputs for RH.
- Integrated 10k? NTC Type II thermistor provides accurate temperature data for comprehensive HVAC control.
- Front-facing digital display provides real-time RH and temperature readings for site verification.
- Includes a setpoint slider and override button for localized occupant control and commissioning.
- Removable terminal blocks reduce installation time and prevent wiring errors during replacement.
- How do I change the output signal between voltage and current? The output is configured using internal jumpers or DIP switches on the PCB, allowing you to match the sensor to the controller's input requirements.
- Does the QFA3230.FWSN require calibration in the field? While factory-calibrated, the integrated display allows for manual offset adjustments if localized environmental verification is required.
- Is the temperature sensor active or passive? This model utilizes a passive 10k Ohm Type II thermistor, compatible with most Siemens Building Technologies and third-party BAS controllers.
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 QFA3230.FWSN Sensor
The Siemens QFA3230.FWSN is a high-precision room relative humidity sensor engineered for demanding building automation environments. Designed to interface seamlessly with controllers via 0-10Vdc or 4-20mA selectable outputs, this unit provides critical environmental data for variable air volume (VAV) systems and air handling units (AHUs). It offers a full 0-100% RH measurement range paired with a 10k? Type II thermistor for integrated temperature monitoring, eliminating the need for separate sensors in the zone. This specific model features an on-board LCD display and a manual setpoint override, allowing for immediate localized feedback and field adjustments without a service tool. The capacitive humidity sensing element ensures long-term stability and resistance to drift, while the removable terminal block simplifies field wiring for contractors during installation or maintenance cycles.
Key Benefits:- Dual-signal flexibility with field-selectable 0-10Vdc or 4-20mA analog outputs for RH.
- Integrated 10k? NTC Type II thermistor provides accurate temperature data for comprehensive HVAC control.
- Front-facing digital display provides real-time RH and temperature readings for site verification.
- Includes a setpoint slider and override button for localized occupant control and commissioning.
- Removable terminal blocks reduce installation time and prevent wiring errors during replacement.
- How do I change the output signal between voltage and current? The output is configured using internal jumpers or DIP switches on the PCB, allowing you to match the sensor to the controller's input requirements.
- Does the QFA3230.FWSN require calibration in the field? While factory-calibrated, the integrated display allows for manual offset adjustments if localized environmental verification is required.
- Is the temperature sensor active or passive? This model utilizes a passive 10k Ohm Type II thermistor, compatible with most Siemens Building Technologies and third-party BAS controllers.
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 QFA3230.FWSN is a high-precision room relative humidity sensor engineered for demanding building automation environments. Designed to interface seamlessly with controllers via 0-10Vdc or 4-20mA selectable outputs, this unit provides critical environmental data for variable air volume (VAV) systems and air handling units (AHUs). It offers a full 0-100% RH measurement range paired with a 10k? Type II thermistor for integrated temperature monitoring, eliminating the need for separate sensors in the zone. This specific model features an on-board LCD display and a manual setpoint override, allowing for immediate localized feedback and field adjustments without a service tool. The capacitive humidity sensing element ensures long-term stability and resistance to drift, while the removable terminal block simplifies field wiring for contractors during installation or maintenance cycles.
Key Benefits:- Dual-signal flexibility with field-selectable 0-10Vdc or 4-20mA analog outputs for RH.
- Integrated 10k? NTC Type II thermistor provides accurate temperature data for comprehensive HVAC control.
- Front-facing digital display provides real-time RH and temperature readings for site verification.
- Includes a setpoint slider and override button for localized occupant control and commissioning.
- Removable terminal blocks reduce installation time and prevent wiring errors during replacement.
- How do I change the output signal between voltage and current? The output is configured using internal jumpers or DIP switches on the PCB, allowing you to match the sensor to the controller's input requirements.
- Does the QFA3230.FWSN require calibration in the field? While factory-calibrated, the integrated display allows for manual offset adjustments if localized environmental verification is required.
- Is the temperature sensor active or passive? This model utilizes a passive 10k Ohm Type II thermistor, compatible with most Siemens Building Technologies and third-party BAS controllers.
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.












