TPS‑SFZL‑E Series Surface Tension Tester

Characteristics
● Adopts advanced strain or electromagnetic‑force balance sensor, featuring high precision and excellent repeatability.
● LED digital tube display, real‑time showing current weight and surface tension value.
● Dual test modes: platinum plate method and platinum ring method. Users can select either one or activate both simultaneously.
● Real‑time surface tension data acquisition with full‑process tension curve recording. Software automatically identifies peak tension and converts equivalent surface tension according to temperature.
● Convenient lifting bracket for platinum plate / platinum ring, easy disassembly. Force value can be calibrated anytime with standard weights.
● One‑key peeling function; stable reading without number jumping or zero drift.
● Exquisite ball‑screw lifting system, low‑noise with stable rising & falling speed.
● Equipped with data acquisition & management software.
● 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)

Technical Parameters
| Item | SFZL‑E1 | SFZL‑E2 |
| —- | —- | —- |
| Test Method | Platinum plate & platinum ring method, single or dual‑mode selection | Platinum plate & platinum ring method, single or dual‑mode selection |
| Control Mode | Manual lifting | Manual lifting |
| Display Mode | LED digital tube display | LED digital tube display |
| Measuring Time | 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 |
| Test Range | 0‑1000 mN/m | 0‑1000 mN/m |
| Resolution | 0.1 mN/m | 0.01 mN/m |
| Accuracy | 0.1 mN/m | 0.01 mN/m |
| Repeatability | 0.1 mN/m | 0.01 mN/m |
| Electronic Balance Precision | Domestic 1/1000 g | Domestic 1/10000 g |
| Weighing System Type | 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 |
| Data Acquisition Software | Standard: PC‑based configuration software for operation, storage, Excel export and print | Standard: PC‑based configuration software for operation, storage, Excel export and print |
| Micro‑printer Interface | Optional | Optional |
| Thermostatic Temperature‑control Interface | Optional, for surface tension test under specified temperature | Optional, for surface tension test under specified temperature |
| Dimension & Weight | 20 cm × 35 cm × 35 cm, 7.5 kg | 20 cm × 35 cm × 35 cm, 7.5 kg |
| Power | 100 W | 100 W |