The Siemens QAM 2112.040 is a passive sensor that measures the air temperature in ventilation ducts. It has a two-part housing and a flexible capillary. The sensor is 400 mm long and uses Pt1000.
The QAM2112.040 is one of a series of duct temperature sensors from Siemens. Other sensors in the series include:
The Siemens QAM2112.040 is a professional-grade duct temperature sensor designed for reliable and precise temperature measurement in heating, ventilation, and air conditioning (HVAC) systems. As a critical component for building automation and energy management, this sensor delivers accurate data to Siemens PLCs, controllers, and building management systems (BMS) for optimal climate control and efficiency.
Engineered with a high-quality Pt1000 (Platinum Resistance Thermometer) sensing element, the QAM2112.040 ensures excellent long-term stability and measurement accuracy across a wide temperature range. Its robust design and standard 4…20 mA analog output make it a versatile and dependable choice for integration into new and existing industrial and commercial HVAC applications.
Key Features & Benefits
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High-Precision Pt1000 Sensor: Delivers exceptional accuracy and repeatability for reliable temperature monitoring, ensuring consistent comfort and system efficiency.
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Standard 4…20 mA Analog Output: Provides a noise-resistant signal that is compatible with a vast range of Siemens PLCs (like the SIMATIC S7 series), controllers, and other building management system interfaces.
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Wide Measuring Range: Capable of measuring duct temperatures from -30 °C to +90 °C (-22 °F to 194 °F), making it suitable for both supply and return air applications.
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Robust & Durable Construction: Built to withstand the demanding environments of HVAC ducts, ensuring long service life and reduced maintenance.
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Easy Installation: Features a convenient mounting bracket and an insertion probe designed for straightforward installation into standard duct walls.
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Improved System Efficiency: By providing precise temperature data, it enables your control system to optimize HVAC operation, reducing energy consumption and costs.
Technical Specifications
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Article Number: QAM2112.040
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Sensor Type: Pt1000
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Measuring Range: -30 … +90 °C (-22 … 194 °F)
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Output Signal: 4…20 mA (2-wire)
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Electrical Connection: 2-pin terminal base
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Protection Rating: IP30
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Housing Material: Plastic (PC-ABS)
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Probe Material: Stainless Steel
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Length of Probe: 120 mm
Typical Applications
The Siemens QAM2112.040 duct temperature sensor is ideal for a wide array of applications, including:
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Supply & Return Air Temperature Monitoring
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VAV (Variable Air Volume) Systems
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Air Handling Units (AHUs)
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Fan Coil Units (FCUs)
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Dedicated Outdoor Air Systems (DOAS)
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Energy Management and Building Automation Systems (BAS/BMS)
