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| Brand | BJBY (Beijing Baoyun) |
|---|---|
| Origin | Beijing, China |
| Model | BY-TC1100 |
| Type | Portable Turbidimeter |
| Measurement Principle | 90° Nephelometric Scattering |
| Range Options | 0–20 NTU / 0–200 NTU |
| Minimum Detectable Value | 0.01 NTU (0–20 range) / 0.1 NTU (0–200 range) |
| Accuracy | ±8% of reading (±2.5% F.S.) |
| Repeatability | ≤1% |
| Zero Drift | ±1% F.S. |
| Light Source | Long-life LED (90° scattering geometry) |
| Warm-up Time | ≤30 s |
| Power Supply | 9 V alkaline battery or AC/DC adapter (220 V AC / 50 Hz input |
| Dimensions | 235 × 75 × 65 mm |
| Display | Backlit LCD with microprocessor control |
| Auto Functions | Auto-zero, auto-calibration, auto-shutdown after 10 min inactivity |
| Data Interface | Analog/digital output port (RS-232 or TTL-level, configurable) |
| Compliance | ISO 7027:2016 (Nephelometric method for turbidity measurement) |
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