SDS3911 0.2μm Remote Particle Counter is a dust particle counter based on the principle of single-particle laser scattering. It can accurately measure eight industry-standard particle sizes: 0.2μm, 0.3μm, 0.5μm, 0.7μm, 1.0μm, 3.0μm, 5.0μm, and 10μm. Through a standard RS485 interface and Modbus protocol, it transmits data in real time to various smart terminals, reducing human intervention and enabling unmanned intelligent monitoring. In various cleanroom environments, it provides continuous real-time monitoring 24/7, reducing risk and costs.
 0.2~10μm
| fan ver SDS3911-F Long silent lifespan | pump ver SDS3911-P High negative pressure |
● Accurate data: Based on the principle of single-particle laser scattering, using an industrial-grade laser source. High counting efficiency, good repeatability and consistency.
● Particle size range: 0.2~10μm , ensuring counting efficiency while a single sensor covers eight channels.
● High reliability: Aerodynamic correction of optical and air paths and self-testing, built-in active cooling system to ensure system reliability and stability.
● Stable traffic: Active sampling method, supporting stable long-term sampling, the air pump version enables high-negative-pressure sampling.
● Fast response: Data updates in seconds.
● Communication interfaces: Standard configuration includes RS485 and Ethernet outputs.
● Audible and visual alarm: Standard configuration includes audible and visual alarm function, alarm values can be set.
● Circuit safety: ESD, overvoltage, overcurrent, and reverse connection protection ensure circuit stability and reliability.
● Easy to install: The installation structure is simple and highly versatile.
● Safe and friendly: low-voltage power supply, no electric shock; no radiation source, no light pollution.
● Sampling flow rate: standard 2.83L/min, with options for both air pump and fan sampling.
| No. | Project | Parameter | Notes |
| 1 | flow | 2.83L/min | |
| 2 | Particle size range | 0.2μm, 0.3μm, 0.5μm, 0.7μm, 1μm, 3μm , 5μm , 10μm | 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%@0.2μm; 100%@Particle size＞0.3μm | Conform to ISO 21501-4 |
| 9 | Reference Standard | ISO 21501-4, GB T29024.4-2017, JF 1190-2008 | |
| 10 | Work environment | Temperature: 0~45℃； 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 12V2A | |
| 13 | Power | Fan version: 11 W Pump version: 9W | |
| 14 | Size | 170 * 135 * 120mm | Excluding inlet and outlet sampling heads |
| 15 | Weight | 1.7kg |
