Siemens Building Technology QFM2101 Sensor
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Siemens Building Technology QFM2101 Sensor

Siemens Building Technology QFM2101 Sensor

The Siemens Building Technology QFM2101 Sensor is a high-performance duct humidity sensor engineered for precise atmospheric monitoring in commercial HVACR systems. This unit provides a stable 4-20mA output signal, facilitating seamless integration with a variety of building automation systems (BAS) and programmable logic controllers. Designed specifically for measuring relative humidity without an integrated display, the QFM2101 utilizes a capacitive sensing element to deliver consistent ±5% accuracy across a 0-100% RH range. The adjustable insertion depth, ranging from 3.5 to 8 inches (90 to 154 mm), allows for optimized probe placement in diverse duct sizes, ensuring accurate air stream sampling for critical control applications. Built with a rugged IP54-rated housing and a standard terminal block connection, this sensor is a reliable choice for monitoring return air, supply air, or outdoor air intake.

Core Technical Features:
  • Duct relative humidity sensor with active 2-wire 4-20mA current loop output.
  • Robust 0-100% RH measurement range suitable for humidification and dehumidification control.
  • Versatile adjustable probe length (3.5 to 8 inches) with an included mounting flange.
  • Terminal block electrical connection for simplified field wiring using 18-20 AWG cable.
  • Wide operating voltage range of DC 13.5 to 35 V, compatible with standard industrial power supplies.
  • Polycarbonate housing with IP54 Protection Class for durability in mechanical room environments.
Common Contractor Questions:

Does the QFM2101 require a dedicated power source?
This 4-20mA HVAC sensor operates on a 2-wire current loop, typically powered by the DC 13.5-35V source from the controller or an external power supply.

Is the sensing tip on the QFM2101 field-replaceable?
Unlike the 2% high-accuracy models in the QFM series, the 5% accuracy Siemens QFM2101 features a fixed sensing tip integrated into the probe assembly.

Can this sensor be used for temperature monitoring?
No, the QFM2101 is a humidity-only model. For dual humidity and temperature sensing, consider the Siemens QFM2160 or QFM2171 models which offer combined outputs.

This item is not eligible for free shipping.

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.

$164.54
Siemens Building Technology QFM2101 Sensor
$164.54

Siemens Building Technology QFM2101 Sensor

The Siemens Building Technology QFM2101 Sensor is a high-performance duct humidity sensor engineered for precise atmospheric monitoring in commercial HVACR systems. This unit provides a stable 4-20mA output signal, facilitating seamless integration with a variety of building automation systems (BAS) and programmable logic controllers. Designed specifically for measuring relative humidity without an integrated display, the QFM2101 utilizes a capacitive sensing element to deliver consistent ±5% accuracy across a 0-100% RH range. The adjustable insertion depth, ranging from 3.5 to 8 inches (90 to 154 mm), allows for optimized probe placement in diverse duct sizes, ensuring accurate air stream sampling for critical control applications. Built with a rugged IP54-rated housing and a standard terminal block connection, this sensor is a reliable choice for monitoring return air, supply air, or outdoor air intake.

Core Technical Features:
  • Duct relative humidity sensor with active 2-wire 4-20mA current loop output.
  • Robust 0-100% RH measurement range suitable for humidification and dehumidification control.
  • Versatile adjustable probe length (3.5 to 8 inches) with an included mounting flange.
  • Terminal block electrical connection for simplified field wiring using 18-20 AWG cable.
  • Wide operating voltage range of DC 13.5 to 35 V, compatible with standard industrial power supplies.
  • Polycarbonate housing with IP54 Protection Class for durability in mechanical room environments.
Common Contractor Questions:

Does the QFM2101 require a dedicated power source?
This 4-20mA HVAC sensor operates on a 2-wire current loop, typically powered by the DC 13.5-35V source from the controller or an external power supply.

Is the sensing tip on the QFM2101 field-replaceable?
Unlike the 2% high-accuracy models in the QFM series, the 5% accuracy Siemens QFM2101 features a fixed sensing tip integrated into the probe assembly.

Can this sensor be used for temperature monitoring?
No, the QFM2101 is a humidity-only model. For dual humidity and temperature sensing, consider the Siemens QFM2160 or QFM2171 models which offer combined outputs.

This item is not eligible for free shipping.

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 QFM2101 Sensor is a high-performance duct humidity sensor engineered for precise atmospheric monitoring in commercial HVACR systems. This unit provides a stable 4-20mA output signal, facilitating seamless integration with a variety of building automation systems (BAS) and programmable logic controllers. Designed specifically for measuring relative humidity without an integrated display, the QFM2101 utilizes a capacitive sensing element to deliver consistent ±5% accuracy across a 0-100% RH range. The adjustable insertion depth, ranging from 3.5 to 8 inches (90 to 154 mm), allows for optimized probe placement in diverse duct sizes, ensuring accurate air stream sampling for critical control applications. Built with a rugged IP54-rated housing and a standard terminal block connection, this sensor is a reliable choice for monitoring return air, supply air, or outdoor air intake.

Core Technical Features:
  • Duct relative humidity sensor with active 2-wire 4-20mA current loop output.
  • Robust 0-100% RH measurement range suitable for humidification and dehumidification control.
  • Versatile adjustable probe length (3.5 to 8 inches) with an included mounting flange.
  • Terminal block electrical connection for simplified field wiring using 18-20 AWG cable.
  • Wide operating voltage range of DC 13.5 to 35 V, compatible with standard industrial power supplies.
  • Polycarbonate housing with IP54 Protection Class for durability in mechanical room environments.
Common Contractor Questions:

Does the QFM2101 require a dedicated power source?
This 4-20mA HVAC sensor operates on a 2-wire current loop, typically powered by the DC 13.5-35V source from the controller or an external power supply.

Is the sensing tip on the QFM2101 field-replaceable?
Unlike the 2% high-accuracy models in the QFM series, the 5% accuracy Siemens QFM2101 features a fixed sensing tip integrated into the probe assembly.

Can this sensor be used for temperature monitoring?
No, the QFM2101 is a humidity-only model. For dual humidity and temperature sensing, consider the Siemens QFM2160 or QFM2171 models which offer combined outputs.

This item is not eligible for free shipping.

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.