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| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | YT-BOD |
| Instrument Type | Portable BOD Analyzer |
| Measurement Principle | Mercury-Free Pressure Differential Method |
| Measurement Range | 0–4000 mg/L |
| Detection Limit | 5 mg/L |
| Accuracy | ≤5% or ±1 mg/L (at 3.55 hPa) |
| Single-Sample Measurement Time | 8 min |
| Repeatability | 3% |
| Resolution | 0.01 mg/L |
| Data Logging Interval | 5 min – 24 h (user-configurable) |
| Incubation Temperature | 20 ± 1 °C |
| Incubation Duration | 1–30 days (programmable) |
| Sample Vessel Volume | 580 mL |
| Number of Parallel Channels | 6 independent terminals |
| Power Supply | AC 220 V ±10%, 50–60 Hz |
| Dimensions (w×d×h, incl. bottles) | 324 × 335 × 350 mm |
| Data Storage Capacity | ≥10 years of measurement records |
| Connectivity | Bluetooth (terminal-to-host), Wi-Fi (cloud upload), USB export |
| Built-in Thermal Printer | Yes |
| Operating System | Android-based UI |
| Display | 7-inch capacitive touchscreen |
| Battery Life (per terminal) | >2 years |
| Compliance Standards | HJ 505–2009, JJG 824–1993 |
| Brand | Yuntang |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | China |
| Model | YT-TP |
| Detection Parameter | Total Phosphorus |
| Instrument Type | Portable |
| Measurement Principle | Spectrophotometry (Ammonium Molybdate Method per GB 11893-89) |
| Detection Range | 0–30 mg/L (segmented) |
| LOD | 0.02 mg/L |
| Accuracy | ±5% FS |
| Stability | <0.5% / 20 min |
| Repeatability | <0.5% RSD |
| Optical Drift | ≤0.002 A within 20 min |
| Light Source | High-brightness imported LED with auto-calibration |
| Display | 10.1″ color TFT touchscreen |
| OS | Android 7.1.1 |
| Data Storage | 8 million records with time-based indexing |
| Connectivity | Wi-Fi, RJ45, Bluetooth, mobile hotspot, USB 2.0 |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Dimensions | 444 × 303 × 173 mm |
| Weight | 5.2 kg (net, excluding battery/adapter) |
| Operating Environment | 5–40 °C, RH <85% (non-condensing) |
| Printer | Built-in thermal line printer with QR code support |
| Compliance | GB 11893-89 |
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