PMS 21
● Easy Integration
Industrial standard interface for easier installation.
● Strong Interference Resistance
Precision all-metal construction ensures stable operation in various environments.
● Operational Reliability
Equipped with industrial-grade laser and other core components, with an operational lifespan of approximately 20,000 hours.
● Accurate Calibration
Complies with ISO 21501 and JJF1190-2008 standards.
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SPECIFICATIONS
| Specification Table | Remarks | |
| Product | PMS 21 | |
| Measured Particle Size | 0.3μm、0.5μm、0.7μm、1.0μm、2.5μm、5.0μm、10μm | |
| Counting Efficiency | 0.3μm: 50%; 0.5μm and above: 100% | |
| Resolution | 1 P/L | |
| Measurement Principle | Light Scattering Method | |
| Laser Source | Long-life light source, 50mW, 780nm | |
| Flow Rate | 2.83L/min | Error: ±5% |
| Vacuum Source | Built-in air pump | |
| Alarm | Indicator light | |
| Screen Display | 5-inch TFT screen | |
| Sampling Time | Adjustable, 10 seconds or more | |
| Communication Method | RS485 (Modbus RTU) | |
| Operating Voltage | DC 12~24V | |
| Operating Current | 800mA | Average Current |
| Operating Temperature | 0~50°C | |
| Storage Temperature | -20 ~ 60 °C | |
| Product Dimensions | 120mm x180mm x80mm | Excluding air inlet/outlet and terminal dimensions. |