Air Quality Sensor

Short Description:

HW210 Laser Digital Dust Sensor Features: Digital output dust concentration signal output unit μg/m3; Built-in microprocessor MCU optimized precise algorithm; standard serial port output; Digital PWM pulse width output and standard serial port (USART); Built-in software self-calibration function, simple debugging, high efficiency and accuracy, good consistency; Light particle counting principle, digital output, simple application, universal interface; high sensitivity can detect particles wi...


  • FOB Price: US $0.5 - 9,999 / Piece
  • Min.Order Quantity: 100 Piece/Pieces
  • Supply Ability: 10000 Piece/Pieces per Month
  • Port: Shenzhen
  • Payment Terms: L/C,D/A,D/P,T/T
  • Product Detail

    Product Tags

    HW210 Laser Digital Dust Sensor

    Features:

    Digital output dust concentration signal output unit μg/m3;

    Built-in microprocessor MCU optimized precise algorithm; standard serial port output;

    Digital PWM pulse width output and standard serial port (USART);

    Built-in software self-calibration function, simple debugging, high efficiency and accuracy, good consistency;

    Light particle counting principle, digital output, simple application, universal interface;

    high sensitivity can detect particles with a diameter of 1μm or more;

    Compact structure, light weight (W48.1xH17XD32.3 mm), embedded installation;

    Using active air flow structure, real-time data characteristics;

    Dual air inlet structure, suitable for more design, convenient installation;

     

     

    Product principle overview:

     

    SY210 is a laser optical refractometer that detects the number of dust particles in the air and has an embedded MCU

    Digital dust sensor for digital detection of real-time environment dust concentration by outputting directly from the operating system and outputting data

    Unit μg/m3. Intersecting the laser light source with the optical axis of an image sensor when dusty airflow

    Reflected light is generated through the intersection area. The image sensor detects dust reflected laser light, according to precision

    High-speed op amp amplification and internal modulation circuit and MCU count and algorithm, operation system particle number and weight conversion,

    Direct output of digital signals of dust concentration, this sensor can sensitively detect particles with a diameter of 1.0μm or more,

    Repeatedly optimized and precise data processing through the built-in microprocessor MCU has greatly improved the accuracy.

    Directly output PM2.5 concentration signal in the current environment, unit μg/m3

     

     

    Detection and application areas:

    Air purifier, air refresher

    Air dust detection, indoor air dust quality detection;

    Home appliances, air conditioners, HVAC, new fans,

    Ventilation system, smoke alarm or other dust monitoring equipment detection components

    As non-metering instrument detection components (Note: This product does not require high reliability, safety, precision

    Equipment and measuring instrument components);

     

    Electrical parameters:

     Specifications

    No. Parameter Specifications
    1 Supply voltage DC5V±5% ( CN1:Pin1=GND, Pin2=+5V )
    2 Power Consumption 50mA ± 10%
    3 Working temperature and humidity ‐10~55°C, 95% RH or less (without condensation)
    4 Storage temperature -30°C~60°C
    5 Detection particle diameter 1μm or more
    6 Detection of dust particle concentration range 5~990μg/m3 (PWM output mode)
    7 signal output PWM output in μg/m3/USART serial outputOutput level: LOW=0V, HI=4.0V
    8 dimensions W48 .1x H17 x D32.3 (mm)
    9 weight about 30g
    10 Measurement start time Approx. 1 minute after power on (system internal correction time)

     

    Sy210 dust sensor output definition: n

    n

    Connector pin definition

     

    No. Name Pin Description
    1 GND Power Input (ground)
    2 +5V power input (+5V terminal)
    3 PWM dust data PWM pulse width signal output 1UG/M3=1mS, period 1S
    4 NC internal inspection, not open to users; can be vacated
    5 NC NC internal inspection, not open to users; can be vacated
    6 TXD USART Output. Open

     

    Note: Connector specifications: A1500WF-06A, spacing 1.5mm\6PIN

     

    Data reading method (communication protocol)

    A, PWM communication interface:

    The PWM interface outputs a periodic pulse signal with a period of 1S, low-level duration of each period

    It is proportional to the PM2.5 concentration value detected by the current module. The low level 1ms = 1ug/m3*K;

    Read mode: Waiting for counting at high level, counting at low level (no 1mS plus one) when high

    When the level is reached, the counting is stopped. This count value is both the PM value and the high level continues to wait and repeat the measurement.

    The waveform is as shown in the figure below: Reference graph (specific actual maximum value, see different product specifications)

     

    B, serial communication interface:

    1, Communication serial port configuration: Communication baud 2, data packet format: 5 sets of data

    Equipment Identity Command code High data Low data Checksum
    042H 04DH 0XXH 0YYH 0ZZH
    Checksum=42H+4DH+XXH+YYH+ZZH=00H

    3, data frame format: 8 data bits, no parity bit, 1 stop bit

    Starting position S Data bits 8 bits D0 ~D7 Stop bit P
    0 D0 D1 D2 D3 D4 D5 D6 D7 1

     

    Installation Notes

     

    Please install the sensor inside the device to reduce the influence of interference light and prevent light from entering the sensor.

     

    After installation, ensure that the “air inlet” and “outlet” are unobstructed.

     

    Please do not install in a channel with strong airflow. The sensor comes with a fan.

     

    Vibration may affect the characteristics of the sensor. The mounting structure should avoid vibration when the sensor is working.

     

    The device cannot work in a humid vapor environment. When designing the product, ensure that the inspection area cannot have

    Vapor or oily corrosive gas environment.

     

    If the device is mounted close to an electrical noise source, the sensor output may be affected by noise from the noise source

    Disturbance. When designing a product, consider the effect of the noise source on the sensor output.

     

     


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