PMS5003

Overview

Digital universal particle concentration sensor

PMS5003 series data manual

 High anti-interference performance because of the patent structure of six

sides shielding

 Optional direction of air inlet and outlet in order to adapt the different

design

PMS5003 is a kind of digital and universal particle concentration sensor, which can be used to obtain the number of suspended particles in the air, i.e. the concentration of particles, and output them in the form of digital interface. This sensor can be inserted into variable instruments related to the concentration of suspended particles in the air or other environmental improvement equipments to provide correct concentration data in time.

Figure 1 Functional block diagram of sensor

Counting Efficiency 50%@0.3 μ m 98%@>=0.5 μ m

Effective Range （ PM2.5

standard ）

standard ） *

Resolution 1 μ g/m ³

Figure 2 Connector Definition

Output result

Typical Circuit

Figure 3 Typical Circuit

Typical Output Characteristic

Definition of axis Y: PM2.5 concentration , unit: μ g/m ³ Definition of axis X: number of samples, unit: time

Figure 4-2 Consistency at 43 ℃

Figure 4-4 Consistency after 30 days’ running

Relationship of Temperature and Consistency

Definition of axis Y: Maximum Error Modulus(%) Definition of axis X: Temperature( ℃ )

Figure 5 Consistency Vs Temperature

Endurance Characteristics

No Item Test Method Characteristics n C

humidity 30%~70% ， particle generator and air cleaner

2. DC 5V power supply 3. Check consistency after 720

cleaner

4. DC 5V power supply 5. Check consistency

2. DC 5V power supply and check

consistency

n=10 C=0

Power Supply 50% ， particle generator and air cleaner

FAN does not screeched

5. Power varies as the cycles of 4.5V

to 5.5V ,then 5.5V to 4.5V with the pace of 0.1V/min for 2 hours.

6. Check consistency during

Variation

50% ， particle generator and air cleaner

2. DC 5V power supply ， keep On-Off

frequency 0.5Hz for 72 hours and check consistency

Set Pin High-Low frequency 0.5Hz for 72 hours and check consistency

2. keep laser On-Off frequency

50Hz for 240 hours and check consistency

Circuit Attentions

1) DC 5V power supply is needed because the FAN should be driven by 5V.

But the high level of data pin is 3.3V. Level conversion unit should be used if the power of host MCU is 5V.

2) The SET and RESET pins are pulled up inside so they should not be

connected if without usage.

3) PIN7 and PIN8 should not be connected. 4) Stable data should be got at least 30 seconds after the sensor wakeup

from the sleep mode because of the fan’s performance.

Installation Attentions

1) Metal shell is connected to the GND so be careful not to let it shorted with

the other parts of circuit except GND.

2) The best way of install is making the plane of inset and outset closely to

the plane of the host. Or some shield should be placed between inset and outset in order to prevent the air flow from inner loop.

3) The blowhole in the shell of the host should not be smaller than the inset. 4) The sensor should not be installed in the air flow way of the air cleaner or

should be shielded by some structure.

5) The sensor should be installed at least 20cm higher than the grand in

order to prevent it from blocking by the floc dust.

6) Do not break up the sensor. 7) M2 self-tapping strew should be used to fix the sensor but it should not be

deeper than 5mm into the sensor.

Other Attentions

1) Only the consistency of all the PM sensors of PLANTOWER is promised

and ensured. And the sensor should not be checked with any third party equipment.

2) The sensor is usually used in the common indoor environment. So some

protection must be added if using in the conditions as followed: a) The time of concentration ≥ 300μ g/m³ is longer than 50% of the

whole year or concentration ≥ 500μ g/m³ i s longer than20% of the whole year.

b) Kitchen c) Water mist condition such as bathroom or hot spring. d) outdoor

Part Number Definition

Physical Size (mm)

Frame length low 8

bits

Data 1 high 8 bits …… Data 1 refers to PM1.0 concentration unit μ g/m3 （ CF=1 ， standard particle ） * Data 1 low 8 bits ……

Data 2 high 8 bits …… Data 2 refers to PM2.5 concentration unit μ g/m3 （ CF=1 ， standard particle ） Data 2 low 8 bits ……

Data 3 high 8 bits …… Data 3 refers to PM10 concentration unit μ g/m3 （ CF=1 ， standard particle ）

Data 3 low 8 bits ……

Data 4 high 8 bits …… Data 4 refers to PM1.0 concentration unit * μ g/m3 （ under atmospheric environment ） Data 4 low 8 bits ……

Data 5 high 8 bits …… Data 5 refers to PM2.5 concentration unit μ g/m3 （ under atmospheric environment ） Data 5 low 8 bits ……

Data 6 high 8 bits ……. Data 6 refers to concentration unit (under atmospheric environment) μ g/m3 Data 6 low 8 bits ……

Data 7 high 8 bits …… Data 7 indicates the number of particles with diameter beyond 0.3 um in 0.1 L of air. Data 7 low 8 bits ……

Data 8 high 8 bits …… Data 8 indicates the number of particles with diameter beyond 0.5 um in 0.1 L of air. Data 8 low 8 bits ……

Data 9 high 8 bits …… Data 9 indicates the number of particles with diameter beyond 1.0 um in 0.1 L of air.

Data 10 low 8 bits ……

Data 11 high 8 bits …… Data 11 indicates the number of particles with diameter beyond 5.0 um in 0.1 L of air. Data 11 low 8 bits ……

Data 12 high 8 bits …… Data 12 indicates the number of particles with diameter beyond 10 um in 0.1 L of air. Data 12 low 8 bits ……

Data 13 high 8 bits …… Data 13 Reserved

Data 13 low 8 bits ……

Data and check high 8 bits

…… Check code=Start character 1+ Start character 2+……..+data 13 Low 8 bits

Data and check low 8 bits

Host Protocol Start Byte 1

0xe2 X X Read in passive mode

0xe1 X 00H-passive 01H-active

Change mode

0xe4 X 00H-sleep 01H-wakeup

Sleep set

0xe2: 32 bytes , same as appendix I

Add of all the bytes except verify bytes.