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| Brand | Doctor Water |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9010 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry (COD) & Nesslerization or Salicylate Method (Ammonia-N) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Photometric Accuracy | ±0.5% T |
| Photometric Repeatability | ≤0.2% T |
| Absorbance Resolution | 0.001 Abs |
| Optical Stability | ≤±0.005 Abs/20 min |
| Detection Range (COD) | 2–20,000 mg/L |
| Detection Range (NH₃-N) | 0.02–100 mg/L (configurable per method) |
| Accuracy | ≤±5% |
| Repeatability | ≤±2% |
| LOD (COD) | 2 mg/L |
| Measurement Time | ≤10 min (post-digestion) |
| Calibration | Single- or Multi-point with Pre-stored Curves (n=1000) |
| Display | 8-inch HD Capacitive Touchscreen |
| Data Storage | 1,000,000 records |
| Interface | USB-A for U-disk export & thermal printer |
| Power Supply | AC 100–240 V, 50/60 Hz |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
| Housing Material | Flame-retardant ABS with Chemical Resistance |
| Brand | DoctorWater |
|---|---|
| Model | Dr-M1101 |
| Type | Portable Multi-Parameter Analyzer |
| Measurement Principle | Electrochemical Sensing (COD via catalytic oxidation current detection) |
| COD Range | 0–500 mg/L |
| COD Accuracy | ≤ ±5% FS |
| Detection Limit | Not Specified (Typical for electrochemical COD sensors: ~2 mg/L) |
| Measurement Time | < 60 s per parameter |
| Display | 8-inch HD color capacitive touchscreen |
| Data Storage | Up to 1,000,000 records |
| Power Supply | Rechargeable Li-ion battery + AC adapter |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Electrode Protection Rating | IP68 |
| Electrode Interface | Digital smart interface with auto-recognition |
| Number of Simultaneous Channels | 6 independent digital electrode ports (expandable to 12) |
| Readout Modes | Real-time, Timed, Interval |
| Data Output | USB 2.0 |
| Language Support | English & Chinese |
| Brand | DoctorWater |
|---|---|
| Origin | Hunan, China |
| Model | Dr-M1201P |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical Sensing (Reagent-Free) |
| COD Range | 0–500 mg/L |
| Accuracy | ≤ ±5% FS |
| Detection Limit | Not Applicable (Reagent-Free Electrochemical Estimation) |
| Measurement Time | < 60 s |
| Display | 5-inch HD Color Touchscreen |
| Data Storage | 1,000,000 Records |
| Power Supply | Rechargeable Li-ion Battery + USB-C AC Adapter |
| Electrode Interface | 3 Independent Digital Sensor Ports |
| Electrode Protection Rating | IP68 |
| Operating Environment | 0–50 °C, ≤85% RH (non-condensing) |
| Compliance | Designed for Field & Lab Use per ISO 5814 (DO), ISO 7888 (EC), ISO 7027 (Turbidity), ASTM D1293 (pH), USP <643> (TOC/COD Correlation Context) |
| Brand | Water Doctor (DoctorWater) |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9901 |
| Instrument Type | Portable |
| Measurement Principle | Rapid Digestion Spectrophotometry (Lab-Grade) |
| Wavelength Range | 340–900 nm |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | <0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤0.2% T |
| COD Range | 2–20,000 mg/L |
| COD Accuracy | ≤±5% |
| LOD (COD) | 2 mg/L |
| Optical Stability | ≤±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Photometric System | Fiber-Optic Detection |
| Display | 5-inch HD Touchscreen |
| Calibration Modes | Single-point & Multi-point |
| Pre-stored Curves | 600 |
| Data Storage | 1,000,000 records |
| Power Supply | Rechargeable Li-ion Battery + AC Adapter |
| Housing Material | Corrosion-Resistant ABS |
| Brand | Water Doctor |
|---|---|
| Origin | Hunan, China |
| Model | Dr-T9001 |
| Instrument Type | Laboratory Benchtop Analyzer |
| Measurement Principle | Rapid Digestion Spectrophotometry |
| Wavelength Range | 340–900 nm |
| COD Range | 2–20,000 mg/L |
| Accuracy | ≤ ±5% |
| Repeatability | ≤ ±2% |
| LOD | 2 mg/L |
| Digestion & Measurement Time | 10 min |
| Wavelength Accuracy | ±1 nm |
| Wavelength Repeatability | < 0.2 nm |
| Spectral Bandwidth | 4 nm |
| Transmittance Error | ±0.5% |
| Transmittance Repeatability | ≤ 0.2% T |
| Optical Stability | ≤ ±0.005 Abs/20 min |
| Resolution | 0.001 Abs |
| Light Source | Imported Cold LED (Lifespan > 100,000 h) |
| Pre-stored Calibration Curves | 1,000 |
| Data Storage Capacity | 1,000,000 records |
| Display | 8-inch HD capacitive touchscreen |
| Sample Holders | Rotatable 16-mm tube position (360°), dual cuvette positions (10 mm & 30 mm pathlength), and four independent digital electrode ports |
| Detection Modes | Absorbance, Transmittance, Concentration |
| Calibration Options | Single-point and multi-point standard calibration |
| Data Export | USB flash drive |
| Housing Material | Corrosion- and heat-resistant ABS |
| Dimensions | 392 × 315 × 170 mm |
| Weight | 4.4 kg |
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