JFL QHD Pendulum damping Tester DATASHEET
| Brand | JFL | Model | QHD |
|---|---|---|---|
| From | China | Name | Pendulum damping Tester |
Specifications
| Swing bar type | Konig pendulum |
| Konig swing Mass | 200±0.2g |
| Konig swing period | 1.4±0.02s |
| Konig Glass Swing Time | 250±10s |
| Number of swings on Konig Glass | 178±7 |
| Konig start and finish swing angle | 6°/3° |
| Persoz swing Mass | 500±0.1g |
| Persoz swing cycle | 1±0.001S |
| Persoz Glass Swing Time | ≥420s |
| Persoz Glass Swing Count | 420 |
| Persoz start and end swing angle | 12°/4° |
Packing list
host X1, K pendulum X1, manual X1, certificate of conformity X1, warranty card X1
After-sales instructions
Warranty days: 365 days
1. After-sales service is provided by the original factory;
2. The whole machine is guaranteed for one year and maintained for life;
3. The following two situations need to be repaired for a fee:
A. It is used under normal conditions, and there is a failure, but it has exceeded the one-year warranty period;
B. Use under abnormal conditions, including man-made physical damage, damage to the instrument caused by inferior batteries, failure to operate in accordance with the instructions and precautions.
[Note] For after-sales services outside the Chinese mainland, if the instrument requires repair, the shipping and possible associated taxes shall be borne by the sender. Generation address of the manual: http://en.nbchao.com/p/18988/Specification.html , which is only used by users who purchase commodities from the NBCHAO.
Created on : 2025/12/28