Siemens QPM21 Series Duct Air Quality Sensors
The QPM21… Series Duct Air Quality Sensors optimize room comfort by enabling demand-controlled ventilation. The sensors can acquire: CO₂ and volatile organic compound (VOC) concentrations, relative humidity, and temperature. Models are available for CO₂, CO₂/VOC, CO₂/T, and CO₂/T/RH.
The sensor evaluates the CO₂/VOC concentrations and transforms it to a 0 to 10 Vdc linear proportional output signal.
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 continuous 0 to 10 Vdc 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 an active 0 to 10 Vdc 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 duct-mounted sensors are suited for use with all systems and devices capable of acquiring and handling a 0 to 10 Vdc output signal.
• Multisensor for CO₂/VOC, temperature, and humidity-temperature.
• Maintenance-free infrared CO₂ sensing element, VOC sensing element based on a heated tin dioxide semiconductor.
• 24 Vac operating voltage, 0 to 10 Vdc output signals.
Select a link under the "item" tab below to order.
| Table 1 | Table 2 | Table 3 | Table 4 | Table 5 | Table 6 | Table 7 |
| X | X | X | X | X | XX | X |
| Table 1 | Type |
| Q | SENSOR |
| Table 2 | MEASURING FAMILY |
| P | CO2/VOC |
| Table 3 | APPLICATION/LOCATION |
| M | DUCT |
| Table 4 | SENSOR TYPE |
| 2 | CO2 |
| Table 5 | HOUSING TYPE |
| 1 | DUCT HOUSING |
| Table 6 | OUTPUTS (0 TO 10 VOLT) |
| 00 | CO2 ONLY |
| 02 | CO2 AND VOC |
| 60 | CO2 AND TEMP |
| 62 | CO2, TEMP AND RH |
| Table 7 | FEATURE DESCRIPTION |
| D | LCD DISPLAY |
| Power Supply | ||
| Operating voltage (SELV) | 24 Vac ±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) | QPM2100/2102: 0.54 lb (0.247 kg) QPM2160/2162: 0.56 lb (0.252 kg) QPM2102D: 0.59 lb (0.267 kg) QPM2150D/2162D: 0.60 lb (0.272 kg) |
|
| Dimensions | QPM2160/2162: 10-3/4 inches (274 mm) QPM2100/2102: 9-9/16 inches(243 mm) |
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