
Automatic Surface Tensiometer
An automatic surface tensiometer for surface and interfacial tension measurement across a wide range of liquid samples.

Louise Corscadden, PhD
Director of Science · ConductScience
Ask Louise about Automatic Surface Tensiometer fit, setup, configuration, or quote prep.
Already working with us? Sign in to connect this with My Scientist.
Overview
This instrument performs accurate surface and interfacial tension measurements across a wide range of liquids. It features an LCD for instant result display and automatic averaging of multiple tests. With a unique dual-calibration system--using standard weights for certification compliance and reference liquids for precision and repeatability--it ensures reliable results through a simple and efficient calibration process.
Key Features
- Features a unibody casing and precision direct-drive mechanism, significantly enhancing instrument reliability and durability. The vibration-free transmission ensures physical stability for improved testing accuracy.
- Utilizes a micro stepper motor for the lifting platform, enabling high-speed adjustment to enhance efficiency and reduce testing time. Automatically switches to standard speed during measurement to guarantee precision.
- Equipped with a 32-bit ARM microcontroller for high-speed operation and computational accuracy. A proprietary filtering algorithm ensures stable and accurate readings.
- Incorporates a 24-bit AD converter for rapid signal conversion and highly accurate force value acquisition.
- An improved torsion wire lever mechanism guides the sensor core in a near-linear path, ensuring excellent test linearity.
- Employs a high-end domestic LVDT displacement sensor with superior linearity, sensitive signal output, and precise impedance matching, guaranteeing repeatable test accuracy.
Specifications
| Model | BKST-200A |
|---|---|
| Measuring Range | 0~200.0mN/m |
| Resolution | 0.01mN/m |
| Accuracy | ≤±1%FS |
| Repeatability Error | ≤±1%FS |
| Platinum Ring Specification | Ring radius(R) 9.55mm, wire radius(r) 0.3mm |
| Standard Accessory | Platinum ring, hook, glass vessel, 1000-milligram weight*2, 500-milligram weight*1 |
| Power Supply | AC110/220V, 50/60Hz |
| External Size(W*D*H) | 260*200*310mm |
| Package Size(W*D*H) | 300*300*400mm |
| Net Weight | 10kg |
| Gross Weight | 12kg |
Model
- BKST-200A
Measuring Range
- 0~200.0mN/m
Resolution
- 0.01mN/m
Accuracy
- ≤±1%FS
Repeatability Error
- ≤±1%FS
Platinum Ring Specification
- Ring radius(R) 9.55mm, wire radius(r) 0.3mm
Standard Accessory
- Platinum ring, hook, glass vessel, 1000-milligram weight*2, 500-milligram weight*1
Power Supply
- AC110/220V, 50/60Hz
External Size(W*D*H)
- 260*200*310mm
Package Size(W*D*H)
- 300*300*400mm
Net Weight
- 10kg
Gross Weight
- 12kg
No Q&A yet. Have a question? Ask below.



