ES-A224 Air quality PM sensor

ES-A224 PM sensor is an industrial-grade general-purpose particle concentration transmitter of measuring the PM1.0, PM2.5, PM10. The anti-interference circuit design can withstand various strong electromagnetic interferences such as on-site frequency converters. It adopts the principle of laser scattering measurement and uses the unique dual-frequency data acquisition technology to screen and obtain the number of particles with equivalent particle size per unit volume.

ES-A224 PM sensor is an industrial-grade general-purpose particle concentration transmitter of measuring the PM1.0, PM2.5, PM10. The anti-interference circuit design can withstand various strong electromagnetic interferences such as on-site frequency converters. It adopts the principle of laser scattering measurement and uses the unique dual-frequency data acquisition technology to screen and obtain the number of particles with equivalent particle size per unit volume. It also uses a scientific and unique algorithm to calculate the mass concentration of particles with equivalent particle size per unit volume, and outputs data in the form of pseudo-quantity signal (4-20mA, 0-10V, 0-5V) or digital signal RS485.

It also is designed for wall mounting and pipe mounting to meet different application scenarios. IP65 protective housing, supports OLED display.

DC power supply (default)

10~30V DC

Power consumption

RS485 output

0.4W

Current output/Voltage output

1.2W

Accuracy

±10% (@500ug/m3,60%RH,25℃)

Range

PM2.5: 0~1000ug/m3

PM10: 0~1000ug/m3

PM1.0: 0~1000ug/m3

Resolution

1ug/m3

Response time

≤90S

Signal output

485 signal output, 4~20mA current output, 0~5V/0~10V voltage output

Warm-up time

≤2min

Circuit operating temperature and humidity

-20℃~+60℃, 0%RH~95%RH non-condensing

Load capacity

Voltage output

Output resistance≤250Ω

Current output

≤600Ω

Communication Interface

485 communication (modbus) protocol

Baud rate: 2400, 4800 (default), 9600

Data bit length: 8 bits

Parity check method: none

Stop bit length: 1 bit

Default ModBus communication address: 1

Support function code: 03

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