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Product Details
Product Introduction
The HM-YN4 is a portable automatic kinematic viscometer designed for rapid testing away from a fixed laboratory bench. It measures transparent and non-transparent Newtonian liquids, including new and in-use lubricating oils, using two capillary viscometers and photoelectric detection. The standard capillary inner diameter is 0.5 or 0.8 mm, and the two-capillary arrangement provides 100-fold total coverage. The measurement range can be customized within (1 to 2000) mm²/s according to user needs. Micro-volume operation requires 300 μL of sample, while the constant-temperature range is ambient to 100°C with ±0.01°C control accuracy. Guided operation and a full Chinese display simplify field use. An integrated automatic cleaning and drying system, three-proof engineering box and built-in 24V lithium battery support mobile testing. The instrument weighs 9 kg and commonly produces a result in 3 minutes. The HM-YN4 product reference summarizes the portable configuration. It is intended for controlled bench testing where operators need documented model details, repeatable preparation and a clear record of the selected procedure.
Applications / Testing Items
- On-site testing of new and in-use lubricating oil.
- Petroleum and chemical field inspection.
- Environmental monitoring and quality-inspection work.
- Marine transport, ship maintenance and aerospace support.
- Automotive repair and maintenance testing.
Functional Performance / Features
- Portable automatic kinematic-viscosity measurement.
- Three-proof engineering box integrated design.
- Automatic cleaning and automatic drying system.
- Full Chinese display with guided operation.
- Plug-in replacement of the viscometer.
- Micro-volume sample requirement of 300 μL.
- Ambient to 100°C constant-temperature range.
- ±0.01°C temperature control accuracy and <0.01°C resolution.
- 0.01 s timing accuracy with photoelectric detection.
- Built-in 24V lithium battery.
- 9 kg instrument weight and 360 mm × 265 mm × 290 mm dimensions.
Main Parameters
| Parameter | Specification |
|---|---|
| Measurement range | Customizable within (1 to 2000) mm²/s; two capillaries provide total 100-fold coverage |
| Sample volume | 300 μL |
| Constant-temperature range | Ambient to 100°C |
| Temperature accuracy | ±0.01°C |
| Timing accuracy | 0.01 s |
| Weight | 9 kg |
Technical Parameters
| Parameter | Specification |
|---|---|
| Reference standards | ASTM D445, ASTM D446 and ASTM D7279; complies with GB265-88 and GB11137-89 repeatability and reproducibility requirements |
| Viscometer capillaries | Two capillary viscometers; standard inner diameter 0.5 or 0.8 mm |
| Measurement range | Each capillary provides a 10-fold range; two capillaries provide 100-fold coverage; customizable within (1 to 2000) mm²/s |
| Sample introduction | Micro-volume liquid transfer device |
| Sample volume | 300 μL |
| Temperature range | Ambient to 100°C |
| Temperature control accuracy | ±0.01°C |
| Temperature control resolution | <0.01°C |
| Timing accuracy | 0.01 s |
| Detection method | Photoelectric detection |
| Temperature sensor | PT100 platinum resistance thermometer |
| Repeatability | ≤1% |
| Reproducibility | ≤3% |
| Accuracy | ≤1% |
| Standby power | ≤10 W |
| Maximum power | ≤50 W |
| Dimensions | 360 mm (L) × 265 mm (W) × 290 mm (H) |
| Weight | 9 kg |
| Operating environment | Temperature 10 to 35°C; humidity <80% RH; target temperature must differ from ambient by >5°C |
| Power supply | Built-in 24V lithium battery |
| Other notes | Avoid strong vibration, airflow, strong electromagnetic interference and corrosive gases |
Expert Review
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