SONBEST SM2171B User manual

SM2171B Us e r Ma nual http://www.sonbus.com/

Sha nghaiSonbest Industrial Co., Ltd Page1

SM2171B

RS485 interface PM2.5, PM10 dust sensor

User Manual

File Version: V21.3.24

SM2171Busing the standard RS485 bus MODBUS-RTU protocol,easy access to PLC，DCS and

other instruments or systems for monitoring PM2.5、PM10 state quantities.The internal use of

high-precision sensing core and related devices to ensure high reliability and excellent long-term

stability,can be customized RS232,RS485,CAN,4-20mA,DC0~5V\10V,ZIGBEE,Lora,WIFI,GPRSand

other output methods.

Technical Parameters

Technical parameter

Parameter value

SM2171B Us e r Ma nual http://www.sonbus.com/

Sha nghaiSonbest Industrial Co., Ltd Page2

Brand

SONBEST

PM2.5 range

0~999ug/m3

PM2.5 accuracy

±15% or ±10ug/m3 max @25℃

PM10 range

0~999ug/m3

PM10 accuracy

±15% or ±35ug/m3 max @25℃

Communication Interface

RS485

Default baud rate

9600 8 n 1

Power

DC9~24V 1A

Running temperature

-40~80°C

Working humidity

5%RH~90%RH

Wiringinstructions

Any incorrect wiring can cause irreversible damage to the product. Please carefullywire the cable as

follows in the case of power failure, and then connect the cable to confirm the correctness and then use it

again.

Core color

Identification

Note

Red

V+

Power +

Green

V-

Power -

Yellow

A+

RS485 A+

Blue

B-

RS485 B-

In the case of broken wires, wire the wires as shown in the figure. If the product itself has no leads, the

core color is for reference.

Communication Protocol

Disclaimer

This document provides all information about the product, does not grant any license to intellectual

property, does not express or imply, and prohibits any other means of granting any intellectual property

rights, such as the statement of sales terms and conditions of this product, other issues. No liability is

assumed. Furthermore, our company makes no warranties, express or implied, regarding the sale and use

of this product, including the suitability for the specific use of the product, the marketability or the

infringement liability for any patent, copyright or other intellectual property rights, etc. Product

specifications and product descriptions may be modified at any time without notice.

Company: Shanghai Sonbest Industrial Co., Ltd

Address:Building 8,No.215 North east road,Baoshan District,Shanghai,China

Web: http://www.sonbest.com

Web: http://www.sonbus.com

SKYPE: soobuu

Email: sale@sonbest.com

Tel: 86-021-51083595 / 66862055 / 66862075 /66861077

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