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