Surface tension testerTwo testing methods

1Platinum Plate Method:The sampling period is 1-5 seconds. For the convenience of viscous liquids, when the platinum plate is immersed in the measured liquid, the surface tension around the platinum plate will be affected, and the surface tension of the liquid will pull the platinum plate down as much as possible. When the surface tension and other related forces of the liquid reach equilibrium with the equilibrium force, the sensing platinum plate will stop immersing into the interior of the liquid. At this point, the balance sensor of the instrument will measure the immersion depth and convert it into the surface tension value of the liquid.

2Platinum Tour de France:Sampling period of 50-200 seconds, (1) gently immerse the platinum ring into the liquid; (2) Slowly lift the platinum ring upwards, causing the liquid level to relatively decrease, forming a liquid column below the platinum ring and eventually separating from it. The platinum ring test is to sense a high value, which is formed when the platinum ring is about to separate from the liquid sample but not yet. The accuracy of converting this high value into surface tension value depends on the viscosity of the liquid.

HARKE-SFT-A1Product parameters of surface tension meter

lSurface/Interface Tension Test Range: 0-400mN/m

lSurface/interface tension measurement accuracy: ± 0.1mN/m

lSurface/interface tension display accuracy: ± 0.01mN/m

lSensor range: 0-120g

lSample stage upgrade speed: 0-10mm/Sec

lSample stage upgrade distance: 0-80mm

lSample table lifting accuracy: ± 0.1mm

lSample pool size: Φ50mm

lMeasurement software: SFT-A

lTemperature range: room temperature

lInstrument size (mm): 360 * 360 * 620

lWeight: 20Kg

HARKE-SFT-A1Basic functions of surface tension meter

lHanging ring method

HARKE-SFT-A1Optional additional items for surface tension tester

lelectrical heating

lConstant temperature circulation sleeve