Data Sheet for Product

ManualsBrandsSiemens ManualsSensors Air qualityRoom air quality sensors QPA10x4, w/o 4...20 mA output

A6V101099173_en--_a Building Technologies

2017-03-14

Room air quality sensors

QPA10x4

· Maintenance-free CO

sensing element based on optical infrared absorption

measurement (NDIR = non dispersive infrared)

· No recalibrations required

Use

In ventilation and air conditioning plants to enhance room comfort and optimize energy

consumption by providing demand-controlled ventilation. The sensor acquires CO

concentrations and temperature.

The sensors may not be deployed as safety devices, e.g. as gas or smoke warning

devices!

Type summary

Type Order number Designation

QPA1004 S55720-S453 Room sensor CO

QPA1064 S55720-S454 Room sensor CO

Engineering notes

The sensor must be powered by a transformer for safety extra low-voltage (SELV) with

separate windings, suited for 100 % duty.

Important!

1961P01

Summary of content (4 pages)

PAGE 1
961P01 Room air quality sensors · · QPA10x4 Maintenance-free CO2 sensing element based on optical infrared absorption measurement (NDIR = non dispersive infrared) No recalibrations required Use In ventilation and air conditioning plants to enhance room comfort and optimize energy consumption by providing demand-controlled ventilation. The sensor acquires CO2 concentrations and temperature. Important! The sensors may not be deployed as safety devices, e.g.
PAGE 2
Cable routing and cable selection On applications with EMC problems, use shielded cables. For secondary power lines and signal lines, use twisted-pair cables. Mounting notes Mounting location Inner wall of the room to be ventilated, not in niches, not behind curtains, not above or near heat sources, and not exposed to direct light from spot lights. Do not expose the sensor to direct solar radiation. Seal the end of the conduit at the sensor to prevent false measurements due to drafts through the conduit.
PAGE 3
Materials and colors Directives and Standards Environmental compatibility Weight Cover ASA + PC, NCS S 0502-G (white) equates to RAL9010 Housing ASA + PC, NCS 2801-Y43R (grey) equates to RAL7035 Mounting plate PC, NCS 2801-Y43R (grey) equates to RAL7035 Sensor (complete) Silicone free Packaging Corrugated cardboard Product standard EN 60730-1 Automatic electrical controls for household and similar use Electromagnetic compatibility (Applications) For use in residential, commerce, lightindust
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Issued by: Siemens Switzerland Ltd. Building Technologies Division International Headquarters Gubelstrasse 22 6301 Zug Switzerland Tel. +41 41-724 24 24 www.siemens.