The JZYW - 200C Automatic Surface Tensiometer is an apparatus for testing the surface tension of a single liquid or the interfacial tension between two liquids. It can rapidly measure the surface tension values of various liquids, accurately and automatically display the results. It is applicable to test the surface tension of chemical reagents, surfactants, liquid oils and fats, etc., and the interfacial tension of oil - water systems. It can be used in scientific research, industrial testing, and teaching.

Technical data:

Measuring range	0～199.9mN/m
Resolution	0.01mN/m
Accuracy of measurement	±1%
Repeatability	error ±1%
Power supply	AC 220 V 50Hz 1.0A
Overall dimensions	240×430×350(mm)
Ambient temperature	20±5℃

Performance:

1.Surface tension displayed on LCD screen
2.Peak value retention function
3.Automatic averaging calculation
4.Automatic test platform movement with auto-stop function

Standard:

JB/T9388 ISO/1409

Product Features:

Utilizes advanced electromagnetic balance force sensor, featuring high precision and excellent repeatability.
5-inch widescreen touchscreen control integrates display of current ambient temperature, real-time tension, peak tension, equivalent tension, etc., with intuitive operation.
Incorporates both platinum plate and platinum ring testing methods, allowing single or simultaneous selection.
Fully automated operation eliminates all human error: automatically locks liquid interface, displays tension curve, captures peak tension, shows direct tension values on-screen without conversion, and stops measurement automatically—reducing manual intervention.
Full-range automatic calibration supports coefficient adjustment via standard weights, distilled water, and anhydrous ethanol.
Sample stage auto-raises/lowers noiselessly, with adjustable speed (1–300 mm/min) via touchscreen for uniform control.
Convenient lifting bracket for platinum plate/rings enables easy loading/unloading, with force value accuracy calibratable anytime using standard weights.
One-key peeling function ensures stable readings without numerical jumps or zero drift.

Parameter:

Model	ZL-E1	ZL-E2
Test method	Design platinum plate and platinum ring at the same time, can choose one of them, can also choose two at the same time
Control mode	Manual lifting
Display mode	LED digital tube display
Measuring time	Platinum plate method ≤10s. Platinum ring method ≤50 s
Sample size required	Platinum plate method ≥3mL; Platinum ring method ≥5mL
Test range (mN/m)	0-1000	0-1000
Resolution ratio(mN/m)	0.1	0.01
Accuracy(mN/m)	0.1	0.01
Repeatability(mN/m)	0.1	0.01
Precision of Electronic balance	Domestic 1/1000 grams	Domestic 1/10000 grams
Weighing system type	Electromagnetic force balance
Accuracy automatic calibration	Accuracy automatic calibration: provide weight correction, distilled water and ethanol coefficient correction, temperature correction
Data acquisition software	Standard: the configuration software can operate, store, export Excel data and print by computer
The micro printer interface	Optional
Thermostatic temperature control interface	Optional: it can test the value of surface tension at a specific temperature
Equipment weight and size	20cm35cm35cm,7.5kg；
Power	100W