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| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-W880 |
| Instrument Type | Portable BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–4000 mg/L |
| Detection Limit | 2 mg/L |
| Accuracy | ≤ ±5% |
| Single-Sample Measurement Time | 7.8 min |
| Incubation Temperature Range | 1.5–40 °C |
| Display | 8-inch capacitive touchscreen (1024 × 768 IPS) |
| Operating System | Android-based embedded OS |
| Data Storage Capacity | 80 million records |
| Power Supply | Built-in 30,000 mAh Li-ion battery + AC adapter |
| Connectivity | USB, Wi-Fi, Bluetooth, 4G LTE |
| Compliance | HJ/T 86–2002, Standard Methods for the Examination of Water and Wastewater (4th Ed.) |
| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-BOD(6T) |
| Measurement Principle | Mercury-Free Pressure-Difference Method |
| BOD5 Range | 0–4000 mg/L |
| Accuracy | Compliant with Standard BOD5 Accuracy Requirements (Glucose-Glutamic Acid Reference Standard: 180–230 mg/L) |
| Sample Capacity | 6 Independent Channels |
| Incubation Temperature | 20 ± 1 °C |
| Data Logging Interval | Every 2 Hours |
| Incubation Duration | 1–30 Days |
| Bottle Volume | 580 mL |
| Data Storage Capacity | 100,000 Records |
| Stirring Modes | Continuous or Intermittent |
| Power Supply | AC 110–220 V, 50/60 Hz |
| Rated Power | 10 W |
| Battery Backup | Rechargeable Li-ion per Channel |
| Compliance | ASTM D5210, ISO 5815-1:2019, EPA 405-B-16-001 |
| Brand | Dr-Water |
|---|---|
| Origin | Hunan, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | Dr-W850 |
| Instrument Type | Laboratory BOD Analyzer |
| Measurement Principle | Microbial Electrode Method |
| Measurement Range | 2–4000 mg/L |
| Detection Limit | 2 mg/L |
| Accuracy | ≤ ±5% |
| Single-Sample Analysis Time | 8 min |
| Incubation Temperature Range | 5–40 °C (ambient) |
| Display | 8-inch HD color capacitive touchscreen |
| Sample Volume | 50 mL |
| Data Storage Capacity | 1,000,000 records |
| Power Supply | AC 220 V ±10%, 50 Hz |
| Rated Power | 48 W |
| Operating Humidity | <85% RH (non-condensing) |
| Microbial Membrane | Dry-layer immobilized biocatalyst membrane, non-toxic and biocompatible |
| Membrane Shelf Life | ≥12 months (dry storage at room temperature) |
| Active Service Life | ≥30 days post-hydration |
| Auto-sampling | Integrated peristaltic pump with multi-channel valve switching |
| Cleaning Mode | Fully automated rinse cycle |
| Oxygen Supply | Membrane-integrated pulsed oxygenation system |
| Thermal Control | Digital pulse-width modulated (PWM) ambient-temperature stabilization |
| Data Export | USB 2.0 interface |
| Built-in Thermal Printer | Yes |
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