Data Sheet for Product

Technical Instructions QPA20xx Series Indoor Air Quality Room Sensors
Document Number CE1N1961
July 26, 2019
Page 8 Siemens Industry, Inc.
Additional Notes
Room sensors with active outputs have power dissipation influencing temperature
measurement. The degree of influence depends on the operating voltage and is
compensated at 24 Vac operating voltage in Siemens QPA20 Series room sensors. All
other operating voltages may result in over- or under-compensation.
Furthermore, the measuring accuracy is influenced by the following:
• Prevailing airflow
• Wall surface (rough, smooth)
• Type of wall (wood, plaster, concrete, brick)
• Location of wall (inside, outdoors).
In an installed sensor, the application-specific measuring accuracy becomes constant
after about a 1-hour operating time. It can be adjusted by a higher system (for example,
a controller) as needed.
Wiring Terminals
Figure 4. QPA2002, QPA2002D.
Figure 5. QPA2000.
Figure 6. QPA2060, QPA2060D.
Figure 7. QPA2062, QPA2062D.