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| Brand | Bettersize (Dandong Better Instruments Co., Ltd.) |
|---|---|
| Origin | Liaoning, China |
| Manufacturer Type | Direct Manufacturer |
| Instrument Type | Optical Particle Counter |
| Model | Bettersize C400 |
| Detection Principle | Combined Light Obscuration and Angular Light Scattering |
| Particle Size Range | 0.5–400 µm |
| Laser Source | Semiconductor Slab Beam Laser |
| Detection Channels | 4–100 (user-definable bin boundaries) |
| Sample Volume | 0.1–200 mL |
| Sampling Pump | 10 mL piston pump, accuracy ≤ ±1% |
| Flow Rate | 5–60 mL/min |
| Maximum Count Concentration | 45,000 particles/mL |
| Counting Repeatability Error | < ±1.5% (for standard particles >2000/mL, 10 mL sample) |
| Counting Resolution | <10% per ISO 21501-4 / GB/T 18854–2015 / USP <788> |
| Vacuum Capability | up to 0.08 MPa |
| Pressure Rating | up to 0.6 MPa |
| Sample Viscosity Range | 0–400 cSt |
| Sample Temperature Range | 0–80 °C |
| Environmental Operating Conditions | 10–40 °C, RH ≤80%, non-condensing |
| Power Supply | 200–240 VAC, 50/60 Hz, 200 W (without air pump) |
| Compliance Standards | ISO 4406, NAS 1638, GB/T 14039, GJB 420A/B, ISO 21501-4, USP <788>, EP 2.9.19, JP 17 |
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