Fine Dust Duct Sensors
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Fine Dust Duct Sensors QSM2100 / QSM2162 / AQS2100 The sensors acquire PM2.5 and PM10 concentrations, relative humidity and temperature ● ● ● Operating voltage AC 24 V or DC 15…35 V Signal outputs DC 0...10 V or DC 0...5 V or 4...20 mA adjustable Range of use -5…45 °C / 5…95 % r.h. (non-condensing)

Use In air ducts of ventilation and air conditioning plants to enhance room comfort and optimize energy consumption by providing demand-controlled ventilation. The sensor acquires: ● PM2.5 & PM10 concentrations ● Relative humidity of duct air ● Duct air temperature NOTICE! ● Do not use the sensors as safety devices, such as gas or smoke warning devices! ● Do not use the sensors outdoors! Type summary Type Order number Fine dust duct sensor for PM2.5 and PM10 Fine dust duct sensor for PM2.5 and PM10, temperature, relative humidity Order and delivery When ordering, provide both name and type...

Functions Fine dust (PM2.5 & PM10) The duct sensor acquires PM2.5 & PM10 concentrations. The output value is the moving average of latest sensor data within 10 s. The duct sensor acquires the relative humidity in the air duct via its capacitive humidity sensing element whose electrical capacitance changes as a function of relative humidity. The electronic measuring circuit converts the sensor’s signal to a continuous DC 0...10 V or DC 0...5 V or 4...20 mA signal, corresponding to a relative humidity range of 0...100 %. The duct sensor acquires the temperature in the air duct via its sensing...

The sensor has two sets of DIP switches: S1 and S2. The different DIP switch positions mean the following: Test mode Output parameter selection Temperature range selection Work mode Continuous work mode (default) Smart work mode Activating test function For detailed information on the test mode, see Activating test function [▶ 5]. These functions are only for QSM2162. Use the test function to check whether the sensor value inaccuracy is caused by the analog output error. Users can configure DIP1, DIP6 and DIP7

Test function active DIP Note: 1) Mode 1 is for standard use. Mode 2 and Mode 3 are for advanced application. ● Mode 1: The sensor is calibrated using the TSI device as reference in Arizona A1 dust. ● Mode 2: The sensor is calibrated using the GRIMM device as reference in Arizona A1 dust. ● Mode 3: The sensor is calibrated using the GRIMM device as reference in KCL dust. 5 Siemens Smart Infrastructure

In the following table: ● High means the signal output of terminal is 10 V/5 V/20 mA after 60 s. ● Low means the signal output of terminal is 0 V/0 V/4 mA after 60 s. Malfunction PM2.5 sensor module replacement warning Normal output Temperature sensor fault Normal output Normal output Notes: *) If the signal output of X1 & X2 is 10 V or 20 mA, the cause of the error is one of the following: ● The selected measuring range of PM2.5 & PM10 is below the measured PM2.5 or PM10 value. E.g., if the selected measure range is 0…50 μg/m3, but the measured PM2.5 or PM10 value is 100 μg/m3, the signal...

Notes Security CAUTION National safety regulations Failure to comply with national safety regulations may result in personal injury and property damage. ● Observe national provisions and comply with the appropriate safety regulations. Engineering Powering the sensor requires a transformer for safety extra low-voltage (SELV) with separate windings for 100 % duty. When sizing and protecting the transformer, comply with all local safety regulations. When sizing the transformer, consider the sensor's power consumption. For correct wiring, see the related device data sheets. Observe all...

Mounting instructions The air inlet must be placed facing the air flow in order to achieve the uniformity and accuracy expected. Do not install the sensor in a vertical duct. Mounting instructions are enclosed in the package. 8 Siemens Smart Infrastructure

Replacing AQS2100 NOTICE! Only trained engineers may replace the sensor module. The sensor module must be replaced under the following conditions: ● QSM2162 (PM2.5 + r.h. + temperature): An output signal of 10 V/5 V/20 mA is provided at signal outputs X1 and X2 and an output signal of 0 V/4 mA at signal output X3. ● QSM2100/QSM2162 (PM2.5 + PM10 + temperature): An output signal of 10 V/5 V/20 mA is provided at signal output X1 and an output signal of 0 V/4 mA at signal output X2. Replacing the sensor module: NOTICE! As the replacement on QSM2162 and QSM2100 is identical, the steps to...

2. Remove the module by hand. 10 Siemens Smart Infrastructure

4. Install the sub-housing on the main housing. NOTICE Turn off the device before replacing the sensor module. If not possible, insert a new sensor module 10 s after the old one is removed. Disposal The device is considered an electronic device for disposal in accordance with the European Guidelines and may not be disposed of as domestic garbage. ● Dispose of the device through channels provided for this purpose. ● Comply with all local and currently applicable laws and regulations. 11 Siemens Smart Infrastructure

FCC (Federal Communications Commission) This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference; 2. This device must accept any interference received, including interference that may cause undesired operation. Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules....

Technical data Power supply Operating voltage AC 24 V ± % or DC 15…35 V (SELV) 20 or AC/DC 24 V class 2 (US) External supply line protection (EU) Fuse slow max. 10 A or Circuit breaker max. 13 A Characteristic B, C, D according to EN 60898 or Power source with current limitation of max. 10 A ● ● Unit to unit variability Measuring range (selectable) Continuous work mode (default) 3…8 min (smart work mode) Data update interval **) Direction of air inlet & outlet (after mounting): facing air flow Analog output signal, (terminal X1) Functional data (PM10) Measuring range (selectable) Unit to...