Technical Specification Sheet Document No. 149-909 July 26, 2019 Siemens Industry, Inc. Page 1 of 2 QPM Series Indoor Air Quality Duct Sensors Description The QPM Series Indoor Air Quality Duct Sensors optimize room comfort by enabling demand-controlled ventilation. Models are available that measure CO 2 , CO 2 and temperature, or CO 2 , temperature and relative humidity. For models with humidity, a capacitive humidity sensing element changes capacitance as a function of the relative humidity. An electronic measuring circuit converts the humidity signal to a voltage or current (field selectable) signal that corresponds to a relative humidity range of 0 to 100%. For models with temperature, the sensor acquires room temperature with a sensing element that changes electrical resistance as a function of the temperature. The resistance is converted to a voltage or current output signal that corresponds to a temperature range of 32 F to 122 F (0 C to 50 C) or -31 F to 95 F (-35 C to 35 C). The QPM2102 models measure both CO 2 and volatile organic compounds (VOC) for optimized indoor air quality. A single output signal is automatically adjusted to reflect the higher of the two values. A secondary output provides CO 2 data.This enables the combination CO 2 + VOC sensor to be easily substituted for a CO 2 sensor in any demand control ventilation control system. QPM Series Air Quality Duct Sensors and. QPM21xxD Indoor Air Quality Duct Sensor with Display. Features • Non-Dispersive Infrared (NDIR) CO 2 sensing technology is ideal for use in facilities that are occupied 24/7. • Combination units enable a single sensor to take the place of up to three individual sensors. • Maintenance-free infrared CO 2 sensing element never requires recalibration. • Field-selectable output provides 0 to 10V, 0 to 5V, or 4 to 20 mA output signal(s). Ordering Information Part Number Description QPM2100 Duct CO 2 Sensor QPM2102 Duct CO 2 + VOC Sensor* QPM2102D Duct CO 2 + VOC Sensor w/Display* QPM2160 Duct CO 2 + Temperature Sensor QPM2160D Duct CO 2 + Temperature Sensor w/Display QPM2162 Duct CO 2 + Temperature + RH Sensor QPM2162D Duct CO 2 + Temperature + RH Sensor w/Display * Siemens CO 2 + VOC sensors are designed to help maximize occupant comfort and are not suitable for use in life safety applications. Information in this document is based on specifications believed correct at the time of publication. The right is reserved to make changes as design improvements are introduced. Products or company names mentioned herein may be the trademarks of their respective owners. © 2019 Siemens Industry, Inc. Siemens Industry, Inc. Smart Infrastructure 1000 Deerfield Parkway Buffalo Grove, IL 60089-4513 USA + 1-847-215-1000 Your feedback is important to us. If you have comments about this document, please send them to SBT_technical.editor.us.sbt@siemens.com Document No. 149-909 Printed in the USA Page 2 of 2 General Specifications Output Signal: 0-10V, 0-5V, or 4-20 mA, selectable, linear CO 2 Measuring: Range: 0-2000 ppm Accuracy: ≤±50 ppm +2% of measured value* Temperature dependency: ±2 ppm/°C (typical) Long term drift: ≤ ±5% measuring range/5 yrs * Allow up to 96 hours for unit to reach published accuracy. Temperature Measuring: Range: - 31 F to 113 F (-35 C to 45 C) Accuracy: ± 1.4°F (+ 0.8°C) Humidity Measuring Range: 0 to 100% rh Accuracy: ± 3% rh (typical 30 to 70% rh) Power Supply: Operating voltage (SELV): 24 Vac or 15 to 35 Vdc 20% Frequency: 50/60 Hz Power consumption: ≤2 VA Electrical: Screw terminals: 2 × 16 AWG or 1 × 14 AWG Environmental: Transport: Temperature: -13 F to 158 F (-25 C to 70 C) Humidity: < 95% rh Physical: Weight (including packaging): 0.60 lb (0.272 kg) Miscellaneous: No calibration required for 8 years Dimensions Dimensions in Inches (mm). Next >