SDS3926 28.3L Large-particle Airborne Particle Counter is a multi-channel dust particle counter based on the principle of single-particle laser scattering. It can accurately measure 8 channels of particles with an industry-standard size of 0.5μm, 1μm, 5μm, 10μm, 25μm , 40μm , 50μm , and 100μm. It supports multiple wired and wireless communication interfaces , transmitting data to various smart terminals in real time, reducing human intervention. It is suitable for various occasions with cleanliness monitoring requirements , enabling continuous real-time monitoring 24/7, reducing risks and costs .
 100um Large-Particle Size
|  SDS3926 Large-particle Airborne Particle Counter |
● Accurate data: Based on standard design, single-particle laser scattering principle, industrial-grade laser source, large-diameter optical glass lens, high counting efficiency, strong particle size resolution, and good repeatability and consistency.
● Particle size range: 0.5~100μm. A single sensor covers eight channels, and the counting efficiency meets the standards.
● High reliability: Aerodynamic correction, optical and air path self-testing, and built -in active cooling system ensure system reliability and stability.
● Stable flow rate: It adopts an active sampling method and a constant flow gas source with closed-loop feedback control , which can support stable and long-term sampling.
● Human-computer interaction: Optional 4.3-inch smart touchscreen, which can be set for local start/stop, sampling mode, periodic sampling, data unit switching, alarms, time and device address, etc.
● Data alarm: Optional audible and visual alarm function, alarm value can be set.
● Data Units: The screen displays units that can be switched: [PC PC/m³ PC/ft³ ]
● Counting mode: Supports real-time data display and cumulative data display.
● Local storage: Optional local storage, with a minimum of 5 million data entries, and file export via USB Type-C port.
● Shell material: SUS304 stainless steel
● Communication interfaces: Standard configuration includes RS485 communication and Ethernet communication.
● Circuit safety: ESD , overvoltage, overcurrent, and reverse connection protection ensure circuit stability and reliability.
| No. | Project | Parameter | Notes |
| 1 | flow | 28.3L/min | |
| 2 | Particle size range | 0.5μm, 1μm, 5μm, 10μm, 25μm, 40μm, 50μm, 100μm | 8 channels |
| 3 | Protocol | Modbus-RTU/TCP | |
| 4 | Interface | RS485、Ethernet | |
| 5 | Screen | 4.3-inch touch screen | Optional configuration |
| 6 | Light source | Long life laser diode | |
| 7 | Maximum concentration | 1,000,000 PC/ft3 | |
| 8 | Counting efficiency | 50%@0.1μm; 100%@Particle size＞0.15μm | Conform to ISO 21501-4 |
| 9 | Reference Standard | ISO 21501-4、JF 1190-2008 | |
| 10 | Work environment | Temperature: 10~45℃； Humidity: 0~95%RH(No condensation) | |
| 11 | Storage | Can store no less than 5 million pieces of data | Optional configuration |
| 12 | Power supply | DC12V [9-28VDC], power supply not less than 12V3A | |
| 13 | Power | 15W | |
| 14 | Size | 195 * 155 * 120mm | Excluding inlet and outlet sampling heads |
| 15 | Weight | 1.9kg |
