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| Brand | ChemTron |
|---|---|
| Origin | Germany |
| Model | WFA-840D / WFA-860D / WFA-840E |
| Stirring Positions | 4 / 6 / 4 |
| Speed Range (rpm) | 10–300 / 10–300 / 0–200 |
| Speed Resolution | 1 / 1 / 1 rpm |
| Speed Accuracy | ±1 / ±1 / — rpm |
| Display | LED / LED / Scale + Knob |
| Backlight | Yes / Yes / Yes |
| Timer Range | 0–99 h or 0–999 min / OFF or 0–99 h or 0–999 min / 0–30 min or Continuous |
| Power Consumption | 11 W / 19 W / 6 W |
| Brand | ChemTron |
|---|---|
| Origin | Germany |
| Model | Smart |
| Instrument Type | Benchtop Rotational Viscometer |
| Viscosity Range | 1–2,000,000 mPa·s |
| Temperature Range | 0–100 °C |
| Temperature Resolution | 0.1 °C |
| Temperature Accuracy | ±0.1 °C |
| Speed Range | 0.3–100 rpm |
| Speed Steps | 18 |
| Viscosity Accuracy | ±1% of full scale |
| Repeatability | ±2% of full scale |
| Display Resolution | 0.01–1 cP |
| Compliance | ASTM D2196, ISO 2555, ISO 3219, USP <911> |
| Data Interface | USB-B |
| Power Supply | 100–240 V AC, 50/60 Hz |
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