SIEMENS QAM2110.040 Duct Air Quality Sensor Low Concentration

The SIEMENS QAM2110.040 Duct Air Quality Sensor is engineered for precise low-concentration air quality monitoring within HVAC systems. This sensor offers a robust solution for maintaining optimal indoor environments, crucial for occupant comfort, health, and energy efficiency. Its core advantages lie in its high accuracy, reliable performance, and seamless integration into building automation systems. Key technical parameters include a Pt100 sensing element, a measuring range of -50 to 80 °C, and a probe length of 400 mm. The QAM2110.040 is designed for direct installation in air ducts, providing essential temperature data for effective climate control.

Product Specifications

| Parameter           | Value                               |

| :------------------ | :---------------------------------- |

| Product Number      | QAM2110.040                         |

| Manufacturer        | Siemens                             |

| Sensor Type         | Temperature (Pt100)                 |

| Application         | Duct Mounted                        |

| Measuring Range     | -50 to 80 °C                        |

| Probe Length        | 400 mm                              |

| Measurement Accuracy| ±0.7 K (at -50 to 80 °C)            |

| Time Constant       | 30 s (at air velocity of 2 m/s)     |

| Immersion Length    | 303–363 mm                          |

| Display             | None                                |

| Housing Protection  | IP30 (housing protection degree)    |

| Warranty            | 60 Months                           |

Core Features & Market Positioning

The SIEMENS QAM2110.040 distinguishes itself through its high-precision Pt100 sensing element, ensuring accurate air temperature acquisition within HVAC ducts. This accuracy is vital for optimizing heating, ventilation, and air conditioning (HVAC) control loops, leading to enhanced energy efficiency and occupant comfort. Its passive nature simplifies installation and reduces potential points of failure. Positioned as a reliable component for building automation, it seamlessly integrates with larger systems, contributing to intelligent building management. The sensor’s construction is robust, designed for the demanding environment of air ducts, ensuring long-term, maintenance-free operation.

Key Application Scenarios

The SIEMENS QAM2110.040 is ideally suited for a variety of HVAC applications where precise air temperature monitoring in ducts is critical. This includes commercial buildings, offices, industrial facilities, and any environment utilizing sophisticated climate control systems. Its primary role is to provide real-time temperature data that directly influences the operation of air handling units, VAV (Variable Air Volume) systems, and heating/cooling coils. By accurately measuring duct air temperature, building managers can ensure consistent and comfortable indoor conditions while preventing energy wastage from over-conditioning. This sensor is particularly valuable in demand-controlled ventilation strategies, where temperature data, alongside other sensor inputs, helps modulate airflow based on actual occupancy and environmental needs.

Practical System Integration Guidance

Integrating the SIEMENS QAM2110.040 into an existing HVAC system is straightforward. The sensor typically requires a mounting flange, which is often supplied with the unit, to ensure a secure and airtight seal within the air duct. Installation involves inserting the 400mm probe into the duct to the appropriate immersion length (303–363 mm) and connecting the passive Pt100 sensing element's output to the building automation system’s controller. Wiring instructions are detailed in the product’s mounting and technical documentation. The passive nature of the sensor means it does not require an external power supply; it relies on the connected controller to provide the necessary excitation current for the Pt100 element to generate a measurable resistance change corresponding to temperature. This simplifies wiring and reduces installation costs.

Operation and Risk Mitigation

Operating the SIEMENS QAM2110.040 is a passive process, as it continuously measures duct air temperature and transmits this data to the connected control system. The sensor is designed for long-term reliability and requires no regular calibration or maintenance, significantly reducing operational overhead and minimizing the risk of system downtime due to sensor failure. Risks are primarily associated with incorrect installation, such as improper sealing of the duct penetration, which could lead to air leaks and affect system performance and energy efficiency. Ensuring the probe is correctly positioned within the airstream and that the mounting flange is securely sealed are key to mitigating these risks. The sensor's operating temperature range is -50 to 80 °C, and it should not be used outside of this specified range to prevent damage or inaccurate readings.

Scalability & Long-Term Value

The SIEMENS QAM2110.040 offers considerable long-term value due to its compatibility with a wide range of Siemens HVAC control platforms and other building automation systems. As a passive Pt100 sensor, it adheres to a widely adopted standard, ensuring interoperability. While the QAM2110.040 itself is a temperature-specific device, its integration into a broader building management system allows for scalability. Future upgrades to more advanced IAQ monitoring (e.g., CO2, VOC sensors) can be implemented alongside or in place of temperature sensors within the same system architecture, leveraging the existing control infrastructure. Siemens' commitment to quality and durability, backed by a 60-month warranty, ensures years of reliable performance, making it a sound investment for optimizing building performance and occupant well-being.

Frequently Asked Questions

What is the primary function of the SIEMENS QAM2110.040?

The SIEMENS QAM2110.040 is primarily a duct air temperature sensor.

It is designed to accurately measure the temperature of air flowing within HVAC ducts. This data is crucial for controlling heating and cooling systems.

Its main goal is to ensure optimal indoor climate conditions and energy efficiency in buildings.

How is the SIEMENS QAM2110.040 installed in an air duct?

Installation typically involves using a mounting flange for a secure duct penetration.

The sensor's 400mm probe is inserted into the airstream to the correct immersion depth. Proper sealing around the probe is essential to prevent air leaks.

The sensor is passive, meaning it doesn't require external power; it interfaces directly with the HVAC control system.

What are the key technical specifications of the SIEMENS QAM2110.040?

It utilizes a Pt100 sensing element for high accuracy.

The sensor measures temperatures within a range of -50 to 80 °C, with an accuracy of ±0.7 K.

It features a 400mm probe length and a 60-month warranty.

Can the SIEMENS QAM2110.040 measure other air quality parameters besides temperature?

No, the QAM2110.040 is specifically designed for temperature measurement only.

Siemens offers other sensors, such as the QPM series, that can measure parameters like CO2 and VOCs. These are typically distinct products.

For comprehensive air quality monitoring, combining the QAM2110.040 with other specialized sensors is necessary.

What is the operating temperature range for the SIEMENS QAM2110.040?

The sensor is designed to operate within a temperature range of -50 to 80 °C.

Operating outside this specified range can lead to inaccurate readings or potential damage to the sensor. It's crucial to adhere to these environmental limits.

Always consult the product datasheet for precise operating conditions and limitations.

What is the meaning of "Pt100" in the SIEMENS QAM2110.040?

Pt100 refers to the type of temperature sensing element used in the sensor.

It is a platinum-based resistor whose electrical resistance changes predictably with temperature. This forms the basis of its accurate temperature measurement.

Pt100 sensors are widely recognized for their stability and accuracy in industrial and HVAC applications.

Does the SIEMENS QAM2110.040 require calibration?

No, the SIEMENS QAM2110.040 is designed to be maintenance-free and typically does not require recalibration.

Its passive nature and robust construction contribute to its long-term stability and reliability. This reduces operational costs and ensures consistent performance.

However, periodic checks of the HVAC system's overall performance are always recommended.

What is the probe length of the SIEMENS QAM2110.040 and why is it important?

The SIEMENS QAM2110.040 has a probe length of 400 mm.

This length is designed to ensure adequate immersion into the duct's airstream, allowing for representative temperature readings. Proper immersion is key to accurate measurement.

The immersion length can typically be adjusted within a range (e.g., 303–363 mm) to suit different duct sizes.

What output signal does the SIEMENS QAM2110.040 provide?

As a passive Pt100 sensor, it provides a resistance-based output signal.

This resistance change is interpreted by the connected HVAC controller to determine the air temperature. It does not output a voltage or current signal directly.

The controller converts this resistance value into a standard temperature reading for the building automation system.

Where is the SIEMENS QAM2110.040 typically used in an HVAC system?

It is commonly installed within the main air ducts of an HVAC system.

This includes supply air ducts, return air ducts, or even within air handling units themselves.

Its purpose is to monitor the air temperature at critical points for optimal system control and comfort management.