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Siemens QPM21 Series Duct Air Quality Sensors

Duct Air Quality Sensors
QPM21 Series

The QPM21… Series Duct Air Quality Sensors optimize room comfort by enabling demand-controlled ventilation. The sensors can acquire: CO and volatile organic compound (VOC) concentrations, relative humidity, and temperature. Models are available for CO, CO/VOC, CO/T, and CO/T/RH.

The sensor evaluates the CO/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 CO/VOC, temperature, and humidity-temperature.
• Maintenance-free infrared CO 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 1Table 2Table 3Table 4Table 5Table 6Table 7
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Table 1Type
QSENSOR
Table 2MEASURING FAMILY
PCO2/VOC
Table 3APPLICATION/LOCATION
MDUCT
Table 4SENSOR TYPE
2CO2
Table 5HOUSING TYPE
1DUCT HOUSING
Table 6OUTPUTS (0 TO 10 VOLT)
00CO2 ONLY
02CO2 AND VOC
60CO2 AND TEMP
62CO2, TEMP AND RH
Table 7FEATURE DESCRIPTION
DLCD 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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