The HSYS-3 mechanical hour meter uses number wheels with a 1/10-hour marking in a rectangular black face. This non-resettable runtime counter records up to 99,999.9 hours, making the equipment hour meter useful for maintenance records.
| Model | HSYS-3 |
|---|---|
| Display | Mechanical number wheels |
| Time range | 0–99,999.9 hours |
| Reset | Non-resettable |
| Panel dimensions | 44 × 32.2 mm |
| Mounting cutout | 36.5 × 25 mm |
| Signal input |