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| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDSJ-308F |
| Form Factor | Benchtop |
| Application Environment | Laboratory |
| Conductivity Range | 0.000 µS/cm to 199.9 mS/cm |
| TDS Range | 0.000 mg/L to 99.9 g/L |
| Resistivity Range | 5.00 Ω·cm to 20.00 MΩ·cm |
| Salinity Range | 0.00–8.00 % |
| Temperature Range | −5.0 to 110.0 °C |
| Accuracy | ±0.5 % FS (Conductivity/TDS), ±0.1 % FS (Salinity), ±0.2 °C (Temperature) |
| Minimum Resolution | 0.001 µS/cm |
| Stability | ±0.3 % FS / 3 h |
| Temperature Compensation | Automatic or Manual (−5.0 to 135.0 °C) |
| Data Storage | 200 datasets per parameter (Conductivity, TDS, Salinity), GLP-compliant |
| Interface | USB |
| Power Backup | Non-volatile memory retention on power loss |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDS-307A |
| Instrument Type | Benchtop Single-Parameter Conductivity Meter |
| Conductivity Range | 0.00 μS/cm to 100 mS/cm |
| TDS Range | 0–1000 mg/L |
| Resistivity Range | 0.00 Ω·cm to 100 MΩ·cm (derived from conductivity) |
| Salinity Range | 0–1000 mg/L NaCl equivalent |
| Temperature Range | 0–60 °C |
| Accuracy | ±1% FS (conductivity & TDS), ±0.3 °C (temperature) |
| Minimum Resolution | 0.01 μS/cm |
| Temperature Compensation | Manual or Automatic (0–40 °C) |
| Electrode Compatibility | DJS-1C platinized platinum conductivity cell (K = 1.0 cm⁻¹), T-818-B-6 thermistor probe |
| Cell Constant Options | 0.01 cm⁻¹ titanium alloy electrode for ultrapure water measurement |
| Display | LCD segment-type, large-character format |
| Brand | Leici |
|---|---|
| Origin | Shanghai, China |
| Model | DDBJ-350 |
| Portability | Portable |
| Intended Use | Laboratory & Field |
| Conductivity Range | (0.00–1.999×10⁵) µS/cm (5 auto-ranging spans) |
| TDS Range | (0.00–19,990) mg/L (5 auto-ranging spans) |
| Salinity Range | (0.00–8.00)% |
| Resistivity Range | 0–100 MΩ·cm |
| Temperature Range | (0.0–40.0) °C |
| Conductivity Accuracy | ±1.0% FS ±1 digit |
| Salinity Accuracy | ±0.2% ±1 digit |
| Temperature Accuracy | ±0.3 °C ±1 digit |
| Temperature Compensation | 0.0–40.0 °C (reference 25 °C for conductivity, 18 °C for salinity) |
| Electrode Constants Available | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Data Storage Capacity | 250 sets |
| Interface | RS-232 |
| IP Rating | IP65 |
| Power Management | Low-power design with low-battery indicator and auto-off |
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