MS5003 particle concentration (G5) is a universal digital sensors, per unit volume can be used to obtain the quality and quantity of suspended particles in the air, and the output in the form of digital interface. The sensors can be embedded in a variety of instruments associated with concentration of suspended particles in the air or environment to improve the equipment, the concentration of providing timely and accurate data.  

The sensor adopts laser scattering theory. Present laser scattering produces on the suspended particles in the air, at the same time at a specific Angle collect the scattered light, the curve of the scattering intensity changes over time. Then the microprocessor using the algorithm, based on the theory of the MIE (MIE) concluded that grain content of equivalent grain size of different size particles per unit volume and quantity.

Sensor technology index

parameter

indicators

unit

Measuring range

0.3 ~ 1.0; 1.0 ~ 2.5; 2.5 ~ 10

 

Microns (microns)

Counting efficiency

0.3 um 50% 50% @ @ > = 0.5 um

 

According to accurate volume

0.1

L (L)

The response time

10 or less

Second (s)

Dc power supply voltage

5.0

V (V)

Maximum working current

120

MA (mA)

Standby current

200 or less

Microamps (mu)

Data interface level

L < 0.8 @ 0.8 H > 3.3 @3.3

V (V)

Working temperature range

- 20 ~ 50 +

Degrees Celsius (℃)

Working humidity range

0 ~ 99%

 

The average time between failures

3 or higher

Years (Y)

The largest size

65 x 42 x 23

Mm (mm)

Interface description

Data interface: two needles for serial data communication interface, using universal asynchronous transceiver protocol (UART); 1 needle for control signal interface, USES the high and low level control, all electric averaged 3.3 VTTL level.   

PIN1

VCC

Power is 5 v

PIN2

GND

The power negative

responsible

The SET

Set the pin/TTL level @ 3.3 V

PIN4

RXD

A serial port receiving pin/TTL level @ 3.3 V

PIN5

TXD

A serial port to send the pin/TTL level @ 3.3 V

PIN6

The RESET

Module reset signal/TTL level @ 3.3 V

PIN7\8

NC

dangling

Note: the SET = 1 module working in a continuous sampling mode, active upload module at the end of each sampling sampling data, sampling response time is less than 600 milliseconds, data more new time less than 2 seconds.  

The SET = 0 module into low power consumption standby mode