ONETEST-039 is a multi-channel particle counting sensor based on the principle of laser scattering, which can accurately measure 6 particle sizes including 0.3μm, 0.5μm, 1μm, 3μm, 5μm and 10μm in the industry. Through the standard RS485 interface and Modbus-RTU protocol, data is transmitted in real-time to various intelligent terminals, reducing human participation and achieving unmanned intelligent monitoring. Realize continuous real-time monitoring for 7*24 hours in various dust-free situations, reduce risks and costs.
ONETEST-039 has higher measurement accuracy and particle size resolution, and has stronger ability to resist the influence of humidity. ONETEST-039 Particle counter sensor adopts industrial laser and photosensitive component, combined with the latest generation of light scattering particle monitoring technology of KNF, carefully tuned optical and gas circuit structures, as well as a new generation of high-frequency weak signal processing circuits and high-precision particle recognition algorithms, to more accurately measure a variety of environmental particle concentration with cleanliness requirements.
Features
1.Accurate data: single particle laser scattering principle, industrial laser light source. High counting efficiency, good repeatability and consistency.
2.Particle size range: Particle size range of 0.3~10μm, to ensure the counting efficiency at the same time, a single sensor covers six channels.
3.High reliability: aerodynamic correction, optical and gas path self-test, insensitive to vibration, to ensure system reliability and stability.
4.Flow stability: adopt active sampling method and constant flow intake fan, optional PID flow control function, can support stability, long time, high negative pressure, sampling; Optional air pump version, external high performance air pump module.
5.Quick response: second level data updates.
6.Communication interface: RS485 and UART TTL serial port two output; Optional 4G, Ethernet.
7.Fully automatic measurement: can be controlled remotely, wireless transmission, data real-time upload to the Internet of Things platform.
8.Circuit safety: ESD, overvoltage, overcurrent, revers connection protection, to ensure the stability and reliability of the circuit.
9.Convenient installation: simple installation structure, high versatility.
10.Safe and friendly: low voltage power supply, no electric shock; No radioactive source, no light pollution.
11.Sampling flow: Standard 2.83L/min, air pump/fan two sampling methods are optional.
12.Data unit: PCS /2.83L.
Scope of application
Pharmaceutical industry, electronics industry, food processing industry, finishing clean room, etc.
Working principle
Using the laser scattering principle, through the design of the optical and the gas path according to the principle of fluid mechanics, the particles in the sampled air pass through the light beam with a large probability to produce weak scattered light; Through the accurate optical signal collection device, the scattered light is collected and projected onto highly sensitive, high bandwidth photodetector. By identifying and analyzing the scattered pulses of particles, the corresponding signal strength of the particles can be obtained. Through the calibration procedure, the particle size is obtained; after conversion and aerodynamic calibration, the mass concentration of particles is calculated.
Technical indicators
| order number |
Item |
Parameters |
Notes |
| 1 |
Measurement output |
0.3~10μm total number of 6 channels |
0.3μm, 0.5μm, 1μm, 3μm, 5μm, 10μm |
| 2 |
Range |
4,000,000 PCS /ft3 |
Meet loss 10% |
| 3 |
Input voltage |
DC12V [9~25VDC] |
Recommended
power supply not
less than 12V 2A |
| 4 |
Rated power |
3.5W |
|
| 5 |
Sleep power |
0.6W |
|
| 6 |
Operating temperature range |
-20-60℃ |
|
| 7 |
Humidity range |
0-99%RH |
|
| 8 |
Working atmospheric pressure |
86KPa~110KPa |
|
| 9 |
response time |
1S |
|
| 10 |
Communication Interface |
RS-485 + UART TTL |
customizable |
| 11 |
Communication protocol |
Modbus-RTU |
customizable |
| 12 |
counting efficiency |
0.3μm/50% >0.45μm/100%
(According to ISO21501) |
@25℃,50%RH |
| 13 |
relative error |
±15% |
@25℃,50%RH |
| 14 |
Product size |
Fan version 168*82*67
Air pump version
171*163.5*69 |
[mm] |
| 15 |
Hose size |
Inside diameter: φ5mm
Inside diameter: φ8mm |
Excluding isokinetic
sampling head |
| 16 |
longevity |
3 years |
Below 40℃ |
The particle counting sensor is used with the ONETEST-200DPC monitoring device
technical indicators:
1、Host display: 7-inch touch LCD collector, real-time update data, curve view, alarm record view, etc
2、 Unit selection: PCS /ft3
3、Storage function: built-in large-capacity data collector, U-disk export interface.
4、Alarm device: standard audible-light alarm device（Adjustable alarm volume）
5、Setting function: the alarm valve value and datacalibration can be set
6、Power supply: DC12V
