Surface tension testerTechnical features:
1: Adopting advanced electromagnetic force balance force sensors with high precision and high repeatability characteristics.
2: 5-inch wide touch screen control, integrated display of current ambient temperature, current tension, peak tension, equivalent tension and other information, very easy to operate.
3: Simultaneously design two testing methods, platinum plate and platinum ring, and choose one or both at the same time.
4: Fully automated operation, eliminating all human errors. Automatically lock the liquid interface, display the tension curve, automatically lock the peak tension, without any conversion, directly display the tension value on the screen. Automatically stop measurement, no manual operation required, reducing manual errors.
5: Full range automatic calibration, supporting weight calibration, and calibration of instrument coefficients for distilled water and anhydrous ethanol.
6: The sample table is automatically raised and lowered without noise, and the speed of ascent and descent can be adjusted at a constant speed (1-300mm/min) through the touch screen
7: The convenient platinum plate and platinum ring lifting bracket makes it very easy for users to remove and install, and standard weights can be used to calibrate the accuracy of force values at any time.
8: One click peeling function, with no jumping numbers and zero drift.
9: Automatic compensation for environmental temperature, using water and ethanol as standard substances, automatically converts the tension value of the sample at 20 ° C.
10: Configure data collection software that is compatible with all Windows systems (WIN 7, WIN 8, WIN 10, WIN XP).
11: Meet the following standards, but not limited to:
GB/T6541-86 Petroleum products - Determination of interfacial tension between oil and water
ISO1409-1995 Determination of surface tension of plastics, rubber, polymer dispersions and latex
GB/T22237-2008 Surface active agents Determination of surface tension
SH/T1156-95 Synthetic Latex Surface Tension Determination Method
ISO6295-1983 Determination of interfacial tension between petroleum products, mineral oils, and oil and water
JB/T18396-2001 Natural Latex Ring Method for Determination of Surface Tension
GB/T5549 (ISO 304-1985) Determination of surface tension by pulling film method
12: Certificate of ownership of the instrument
Surface tension testerTechnical parameters:
model |
SFZL-A1 |
SFZL-A2 |
SFZL-A3 |
test method |
Simultaneously design two testing methods: platinum plate and platinum ring. You can choose either one or both at the same time |
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Control method |
Touch operation, automatic lifting of sample table, automatic conversion |
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lifting speed |
1-300mm/min |
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Display mode |
Five inch color touch screen display |
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Time |
Platinum plate method takes 10 seconds, ring gold plate method takes 50 seconds |
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Sample quantity required |
Platinum plate method ≥ 3mL; Platinum ring method ≥ 5mL |
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Measurement range (mN/m) |
0-1000 |
0-1000 |
0-1000 |
Resolution (mN/m) |
0.1 |
0.01 |
0.001 |
Accuracy (mN/m) |
0.1 |
0.01 |
0.001 |
Repeatability (mN/m) |
0.1 |
0.01 |
0.001 |
Accuracy of electronic balance |
One thousandth of a gram domestically produced |
One ten thousandth of a gram domestically produced |
One hundred thousandth of a gram domestically produced |
Weighing system type |
Electromagnetic force balance |
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Accuracy automatic calibration |
Provide weight correction, two-point coefficient correction for distilled water and anhydrous ethanol, and temperature correction |
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Data processing software |
Standard configuration, software can be operated, stored, exported Excel data, printed, etc. through a computer |
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Mini printer interface |
option |
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Constant temperature control interface |
Optional, capable of testing surface tension values at specific temperatures |
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Equipment weight and size |
Bare machine size20cm*33 cm *42 cm, weight8kg; |
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power |
100W |
Platinum Plate Test
Platinum Ring Test
Data collection software: