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| Brand | Chu Ding Technology |
|---|---|
| Origin | Shanghai, China |
| Model | DDS-307A |
| Conductivity Range | 0–199.9 mS/cm (6 auto-ranging spans) |
| Temperature Range | –5 to 105 °C |
| Accuracy | ±1.0% FS (conductivity), ±0.5 °C (temperature) |
| Temp. Compensation | 2.0%/°C (adjustable 0–100 °C) |
| Cell Constants Supported | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Display | Backlit LCD with multi-parameter readout |
| Compliance | Meets JJG 376–2007 (Chinese National Verification Regulation for Conductivity Meters), suitable for GLP environments |
| Brand | Chu Ding Technology |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | PHS-3C |
| Price | USD 310 (FOB Shanghai) |
| Accuracy Class | 0.01 |
| pH Range | 0.00–14.00 pH |
| mV Range | ±1800 mV |
| pH Resolution | 0.01 pH |
| mV Resolution | 1 mV |
| pH Accuracy | ±0.01 pH ±1 digit |
| mV Accuracy | ±1 mV ±1 digit |
| Input Impedance | ≥1×10¹² Ω |
| Drift | ±0.01 pH ±1 digit / 3 h |
| Manual Temperature Compensation Range | 0–60 °C |
| Sample Solution Temperature Range | 5–60 °C |
| Display | 3½-digit LED |
| Calibration | One-point or two-point |
| Compatible Electrode | E-201-C pH Combination Electrode |
| Brand | Chu Ding Technology |
|---|---|
| Origin | Shanghai, China |
| Model | DDS-11A |
| Accuracy Class | 1.0 |
| Conductivity Range | (0–1.999) μS/cm |
| Temperature Range | −5 to 105 °C |
| Conductivity Accuracy | ±1.0% FS |
| Temperature Accuracy | ±0.5 °C |
| Electronic Stability | ±0.5% FS |
| Temperature Compensation Coefficient | 2.0 %/°C |
| Compensation Range | 0–100 °C |
| Electrode Constant Compatibility | 0.01, 0.1, 1.0, 10.0 cm⁻¹ |
| Brand | Chu Ding Technology |
|---|---|
| Origin | Shanghai, China |
| Model | PHS-3E |
| Accuracy Class | 0.01 |
| pH Range | (-2.00 to 18.00) pH |
| mV Range | ±1999 mV |
| Temperature Range | (0.0 to 99.9) °C |
| pH Resolution | 0.01 pH |
| mV Resolution | 1 mV |
| Temperature Resolution | 0.1 °C |
| pH Accuracy | ±0.01 pH ±1 digit |
| mV Accuracy | ±1 mV ±1 digit |
| Temperature Accuracy | ±0.3 °C ±1 digit |
| Input Impedance | 1 × 10¹² Ω |
| Drift Stability | ±0.01 pH ±1 digit / 3 h |
| Compatible Electrode | E-201-C pH Composite Electrode |
| Temperature Sensor | T-818-B-6 |
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