TPS‑SFZL‑A Series Surface Tension Tester

Characteristics
● Adopts advanced electromagnetic‑force balance sensor for high precision and excellent repeatability.
● 5‑inch color touch‑screen control. Integrated display of ambient temperature, real‑time tension, peak tension, equivalent tension and other parameters for easy operation.
● Dual test modes: platinum plate method and platinum ring method. Users can select either one or activate both simultaneously.
● Fully‑automatic operation to eliminate human‑induced errors. Automatically locks liquid interface, displays tension curve, captures peak tension, and directly outputs tension values on screen. Auto‑stop measurement without manual intervention to reduce manual errors.
● Full‑range automatic calibration. Supports weight calibration, distilled‑water and anhydrous‑ethanol coefficient calibration.
● Noise‑free automatic lifting sample table. Lifting speed adjustable from 1‑300 mm/min via touch screen.
● Convenient lifting bracket for platinum plate / platinum ring, easy disassembly. Force value can be calibrated anytime with standard weights.
● One‑key peeling function; stable readings without number jumping or zero drift.
● Automatic ambient temperature compensation. Automatically converts tension values to 20 °C reference based on water and ethanol calibration.
● Data acquisition software compatible with Windows XP / Win7 / Win8 / Win10 operating systems.
● Compliant with standards including but not limited to:
GB/T6541‑86, ISO1409‑1995, GB/T22237‑2008, SH/T1156‑95,
ISO6295‑1983, JB/T18396‑2001, GB/T5549 (ISO 304‑1985)
● Instrument patent certificate available.

Technical Parameters
| Item | SFZL‑A1 | SFZL‑A2 | SFZL‑A3 |
| —- | —- | —- | —- |
| Test Method | Platinum plate & platinum ring method, single or dual‑mode selection | Platinum plate & platinum ring method, single or dual‑mode selection | Platinum plate & platinum ring method, single or dual‑mode selection |
| Control Mode | Touch operation, automatic sample table lifting & automatic conversion | Touch operation, automatic sample table lifting & automatic conversion | Touch operation, automatic sample table lifting & automatic conversion |
| Lifting Speed | 1‑300 mm/min | 1‑300 mm/min | 1‑300 mm/min |
| Display Mode | 5‑inch color touch screen display | 5‑inch color touch screen display | 5‑inch color touch screen display |
| Measuring Time | Platinum plate method ≤10 s; Platinum ring method ≤50 s | Platinum plate method ≤10 s; Platinum ring method ≤50 s | Platinum plate method ≤10 s; Platinum ring method ≤50 s |
| Required Sample Volume | Platinum plate method ≥3 mL; Platinum ring method ≥5 mL | Platinum plate method ≥3 mL; Platinum ring method ≥5 mL | Platinum plate method ≥3 mL; Platinum ring method ≥5 mL |
| Test Range | 0‑1000 mN/m | 0‑1000 mN/m | 0‑1000 mN/m |
| Resolution | 0.1 mN/m | 0.01 mN/m | 0.001 mN/m |
| Accuracy | 0.1 mN/m | 0.01 mN/m | 0.001 mN/m |
| Repeatability | 0.1 mN/m | 0.01 mN/m | 0.001 mN/m |
| Electronic Balance Precision | Domestic 1/1000 g | Domestic 1/10000 g | Domestic 1/100000 g |
| Weighing System Type | Electromagnetic force balance | Electromagnetic force balance | Electromagnetic force balance |
| Automatic Calibration | Weight correction, distilled‑water & ethanol coefficient correction, temperature correction | Weight correction, distilled‑water & ethanol coefficient correction, temperature correction | Weight correction, distilled‑water & ethanol coefficient correction, temperature correction |
| Data Acquisition Software | PC‑based configuration software for operation, storage, Excel export and print | PC‑based configuration software for operation, storage, Excel export and print | PC‑based configuration software for operation, storage, Excel export and print |
| Micro‑printer Interface | Optional | Optional | Optional |
| Thermostatic Temperature‑control Interface | Optional, for surface tension test under specified temperature | Optional, for surface tension test under specified temperature | Optional, for surface tension test under specified temperature |
| Dimension & Weight | 20 cm × 33 cm × 42 cm, 8 kg | 20 cm × 33 cm × 42 cm, 8 kg | 20 cm × 33 cm × 42 cm, 8 kg |
| Power | 100 W | 100 W | 100 W |