Data Sheet for Product

QSA Series Fine Dust Sensors Submittal Sheet
Document No. A6V11380355
August 16, 2020
Unrestricted Information in this publication is based on current specifications. The company reserves the right to make changes in
specifications and models as design improvements are introduced. Product or company names mentioned herein may be the trademarks of
their respective owners © 2020 Siemens Industry, Inc.
Siemens Industry, Inc.
Smart Infrastructure
1000 Deerfield Parkway
Buffalo Grove, IL 60089
USA
+ 1 847-215-1000
Your feedback is important to us. If you have
comments about this document, please send them to
[e-mail]
Document No. A6V11380355
Printed in the USA
Page 2 of 2
Wiring Diagrams
G, G0: Operating voltage 24 Vac (SELV)/
13.5 to 35 Vdc
U1: Signal output 0 to 10 Vdc for PM2.5
0 to 500 μg/m3
U2: Signal output 0 to 10 Vdc for PM10
0 to 500 μg/m3
Gu: Signal ground for U1 and U2
+,-, Ref: Modbus signal
Figure 1.
Dimensions
Figure 2. QSA Series Sensors Dimensions in Inches (Millimeters).
NOTE: Use ARG70 Adapter Plate (sold separately) to mount QSA directly on a 2” × 4” box.