Portable Automatic Kinematic Viscometer

Product Overview

The HM-YN4 Portable Automatic Kinematic Viscometer is an analytical instrument engineered specifically for rapid on-site and field kinematic viscosity testing. Housed inside a rugged, customized three-proof (waterproof, dustproof, shockproof) engineering case, the instrument combines laboratory accuracy with field portability. Requiring a micro-sample volume of just 0.3 mL (300 μL), it completes a full measurement in approximately 3 minutes. The unit incorporates a built-in 24V high-capacity lithium battery providing up to 16 hours of thermal maintenance at 40°C or 8 hours at 100°C, alongside an automated capillary solvent washing and drying system for field operations.

Key Features

• Rugged mobile design: fully integrated within a customized three-proof engineering protective case
• Rapid sample throughput: completes full viscosity measurement cycle in approximately 3 minutes
• Micro-volume sampling: requires only 300 μL (0.3 mL) of fluid via precision micro-pipette
• Self-contained automatic washing: built-in automated capillary cleaning and rapid drying system
• Exceptional battery endurance: high-capacity 24V lithium battery supports 16h at 40°C or 8h at 100°C
• Dual capillary viscometers providing 100-fold dynamic range coverage (1 to 2000 mm²/s customizable)
• Photoelectric meniscus transit detection delivering 0.01s timing accuracy and repeatable metrics
• Intuitive guided interface on high-contrast screen with quick-change plug-in viscometer sockets
• Compliance with international standards: ASTM D445, ASTM D446, ASTM D7279, GB 265, and GB 11137

Applications

The HM-YN4 provides critical mobile oil analysis across diverse field environments:

• Marine & Offshore Engineering: Main engine cylinder oils, auxiliary generator crankcase oils, and stern tube lubricants on cargo vessels and drilling rigs.
• Mining & Heavy Plant Maintenance: Hydraulic excavators, heavy haulage gearboxes, and open-pit mining machinery fluid checks.
• Aviation Ground Support: Ramp-side inspection of ground equipment hydraulic oils and turbine servicing fluids.
• Fleet Transport & Railways: Locomotive crankcase oils, bus fleet diesel engine oils, and depot maintenance fluid checks.
• Emergency Quality Response: Environmental spill identification and on-site fuel adulteration screening.

Technical Specifications

Parameter	Specification
Instrument Model	HM-YN4
Form Factor	Portable with integrated customized three-proof engineering protective case
Reference Standards	ASTM D445, ASTM D446, ASTM D7279; Complies with GB265-88 and GB 11137-89
Viscometer Capillary	2 capillary viscometers (standard configuration: inner diameter 0.5 or 0.8 mm)
Measurement Range	1 ~ 2000 mm²/s (customizable; two tubes provide 100-fold dynamic range)
Sample Volume	300 μL (0.3 mL via micro-volume liquid transfer device)
Testing Duration	Typically ~3 minutes per test cycle
Constant Temperature Range	Ambient ~ 100°C
Temperature Control Accuracy	±0.01°C
Temperature Control Resolution	<0.01°C
Timing Accuracy	0.01s
Detection Method	Photoelectric detection
Temperature Sensor	Pt100 platinum resistance thermometer
Repeatability	≤1%
Reproducibility	≤3%
Measurement Accuracy	≤1%
Power Consumption	Standby power: ≤10W; Maximum power: ≤50W
Power Supply	Built-in 24V lithium battery (16h at 40°C; 8h at 100°C)
Dimensions & Weight	360 mm (L) × 265 mm (W) × 290 mm (H); 9 kg
Operating Environment	Temperature: 10 ~ 35°C (target temp must exceed ambient by >5°C); Humidity: <80% RH
Operating Precautions	Avoid strong vibrations, air turbulence, strong electromagnetic interference, and corrosive gases

Configuration and Accessories

• HM-YN4 Portable automatic kinematic viscometer in engineering protective case
• 2 Calibrated capillary viscometer tubes (standard 0.5 / 0.8 mm)
• Adjustable volume micro-pipette with disposable pipette tips
• Internal cleaning solvent container, waste bottle, and connection tubes
• 24V High-performance lithium battery pack and dedicated AC power adapter/charger
• User operation guide, calibration report, and certification sheet

Related Models

For stationary benchtop analysis in standard analytical facilities, explore the HM-YN1 or the 3-in-1 HM-YN2. For high-volume automated laboratory batch work, review the HM-YN3 series. For sub-ambient chilling down to 5°C, consider the compressor-equipped HM-WYN.

Product Enquiries

Contact our sales representative for product enquiries, configuration information and coordination of service requests.

Sales Contact: Arthur
Email: Arthur@hmdzkj.cn
Tel / WhatsApp / WeChat: +86 18353666151

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