DY-300 Fully Automatic Surface Tensiometer
The DY-300 is a fully-automatic, multi-purpose, and user-friendly surface tensiometer designed for reliable measurement of surface and interfacial tension, lamella length, sedimentation behavior, and liquid density. With its repetitive measurement function, the DY-300 is an ideal instrument for quality control applications. High-quality components, a durable design, and a video user manual integrated into the software ensure ease of use. Optional jacketed or heater-type sample stages and a thermometer are also available.
Features
• “One-click” fully automated operation
• Pre-wetting function to prevent measurement errors caused by unsuccessful wetting of the Wilhelmy plate or du Noüy ring
• Easy parameter adjustment to adapt to various measurement standards
• Video user manual for intuitive operation
• Adjustable leveling of the device body
• Calibration using external weights for periodic accuracy verification
Optional Hardware
• Sedimentation behavior measurement kit
• Liquid density measurement kit
• Jacketed sample stage for temperature measurements from +10°C to +70°C
• Heater-type sample stage for temperature measurements from ambient to +150°C
Applications
Surface tension: Paints, inks, and additives for coating processes
Interfacial tension: Transformer oil, emulsions, surfactant solutions
Lamella length: Paint leveling, foaming stability of coatings, and fire extinguishing agents
Sedimentation behavior: Flocculants used in wastewater treatment, stability of dispersions such as paints and pigmented inks
SPECIFICATIONS
Measuring Methods:
• Surface tension (Wilhelmy plate and du Noüy ring method)
• Interfacial tension (Wilhelmy plate and du Noüy ring method)
• Lamella length (using the du Noüy ring)
• Liquid density (requires optional probe)
• Sedimentation behavior (requires optional probe)
Measuring Range: Surface/interfacial tension: 1–1000 mN/m
Resolution: 0.01 mN/m
Accuracy: 0.2 mN/m
Calibration Method: By external calibration weights
Sample Stage Operation:
• Speed: 0.004–5.0 mm/s (software-controlled)
• Stroke: 48 mm
External Dimensions (WxDxH): 255 x 309 x 369 mm
Weight: Approximately 12.5 kg
Electrical Power:
• Voltage: AC 100–240 V
• Frequency: 50/60 Hz
• Power Consumption: 35 W / 75 VA
Operating Environment:
• Temperature: +10°C to +35°C
• Humidity: 30–80% RH (non-condensing)
• Positioned away from sources of electrical noise and vibration
