Cubic Sensor and Instrument Co.,Ltd.

2.83LPM Particle Counter OPC-6303DS

OPC-6303DS is a 2.83LPM wall-mount aerosol particle counter with display and adopts the principle of light scattering to accurately detect and calculate the number of suspended particles of different sizes in the air per unit volume. lt can simultaneously output particle quantity in 6 channels of 0.3μm,0.5μm, 1.0μm, 2.5μm, 5.0μm and 10μm in pcs/2.83L or pcs/m', The screen can realtime display the monitoring data, cleanroom lSO14644-1 2015 grade and alarm, once the particle quantity exceeds the set threshold. The touch screen also supports setting the output unit, display channel, concentration alarm threshold, coefficient, language, work time, etc.

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Features Specification

Features of 5.2.83LPM Particle Counter OPC-6303DS

  • Industrial grade laser with high reliability.

  • Constant flow sampling system to ensure stable sampling.

  • Output 0.3μm, 0.5μm, 1.0μm, 2.5μm, 5.0μm and 10μm particle numbers in pcs/m³, pcs/L or pcs/28.3L.

  • Modbus RTU and MQTT communication protocols available.

  • Calibration coefficient correction available against standard equipment.

  • Real-time display ISO 14644-1 grade level.


Specification of 2.83LPM Particle Counter OPC-6303DS

Working PrincipleLight scattering
Measurement Range0~1,000,000 pcs/ 28.3L
Output Channels>0.3μm, >0.5μm, >1.0μm, >2.5μm, >5.0μm, >10μm
Measurement Error

<100pcs/L: ±30pcs/L

>100pcs/L: ±30% of reading

Condition: 0°C ~ 40°C, 50 ±10%RH, reference instrument TSI 9306

Data Refresh Time1 second
Working Condition-30°C~70°C, 0~95%RH(Non-condensing)
Operating VoltageDC 12-24V
Average Operating Current≤1A
CommunicationRS485 Modbus RTU, RJ45 MQTT, ,4-20mA analog signal output
Sampling flow rate2.83L/min (0.1 CFM)
Work ModeAdjustable (Default: work 1 minutes and sleep 4 minutes)
Display3.5-inch color touch screen


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