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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPB-607A |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Clark-type Polarographic Probe) |
| Measurement Range | Dissolved Oxygen: (0.0–20.0) mg/L |
| Temperature | (0.0–40.0) °C |
| Accuracy | ±0.30 mg/L (DO), ±0.5 °C (Temperature) |
| Repeatability | ±0.1 mg/L |
| Stability | ±0.10 mg/L over 3 h |
| Response Time | ≤45 s to 90% of final value at 20 °C |
| Zero Oxygen Error | ≤0.10 mg/L |
| Power Supply | Two AA alkaline batteries |
| Display | 3.5-digit LCD with optional blue backlight |
| Calibration | Zero-oxygen and saturated-air (full-scale) calibration supported |
| Temperature Compensation | Automatic, integrated thermistor |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | JPBJ-608 |
| Instrument Type | Portable |
| Measurement Principle | Electrochemical (Polarographic Membrane-Type Probe) |
| Range | (0.00–19.99) mg/L DO |
| Accuracy | ±0.30 mg/L |
| Repeatability | ±0.10 mg/L |
| Temperature Range | (0.0–40.0) °C |
| Temp. Accuracy | ±0.5 °C |
| Saturation Range | (0.0–199.9) % |
| Saturation Accuracy | ±10 %FS |
| Zero Error | ≤0.10 mg/L |
| Stability | ±0.10 mg/L / 3 h |
| Response Time (90%) | ≤45 s at 20 °C |
| Data Storage Capacity | 500 sets |
| Protection Rating | IP65 |
| Interface | RS-232 |
| Power Supply | 4 × AA alkaline batteries |
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