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Standard:
GB/T 34848-2017、ISO 14616-1997、DIN 53369-1976
Test principle
This tester uses the principle of air heating to connect the tested sample to the tension sensor and displacement sensor. After reaching the maximum shrinkage force, it is placed in an external test environment with an ambient temperature of 23°C ± 2°C to cool down, the instrument continuously records the reference temperature, shrinkage force, and displacement, the recorded data can be used to determine optimal shrinkage conditions for the film.
The internal structure of the instrument is shown in Figure 1
Force and Shrinkage Measurement Chartis shown in Figure 2
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Technical Parameters
| Item | Index |
| Sensor Specifications | 5 N (Standard) |
| 10 N, 30 N (Customizable) | |
| Contraction Force Accuracy | ±0.5% of indicated value (10%-100% of sensor specification) |
| ±0.05%FS (0%-10% of sensor specification) | |
| Display Resolution | 0.001 N |
| Displacement Measurement Range | 0.1～70 mm |
| Displacement Sensor Accuracy | ±0.07 mm |
| Shrinkage Rate Measurement Range | 0.1%～95% |
| Operating Temperature Range | Room temperature～200℃ |
| Temperature Fluctuation | ±0.2℃ |
| Temperature Accuracy | ±0.5℃ (Single-point calibration) |
| Number of Stations | 1 set (2 units) |
| Sample Size | 110 mm×15 mm (Standard required size) |
| Dimensions | 480 mm(L)×400 mm(W)×630 mm(H) |
| Power Supply | 220VAC±10% 50Hz / 120VAC±10% 60Hz |
| Net Weight | 26 kg |
| Power Rating | 800W |
