Technical data
| ELD500 Leak Detector | Units | ELD500 | ELD500 DRY | ELD500 FLEX |
| Lowest detectable helium leak rate | ||||
| Vacuum operation | mbar ls-1 | ≤ 5 x 10-12 | ≤ 3 x 10-11 | ≤ 5 x 10-12* |
| Sniffer operation | mbar ls-1 | ≤ 1 x 10-7 | ≤ 1 x 10-7 | ≤ 1 x 10-7 |
| Maximum measurable helium leak rate | ||||
| Vacuum operation | mbar ls-1 | >0.1 | >0.2 | >0.3 |
| Measurement ranges | decades | 12 | 12 | 11 |
| Maximum permissible inlet pressure | mbar | 15 | 15 | 15 |
| Pumping speed during pumpdown, 50 Hz/60 Hz | m3h-1 | 2.5/3 | 1.6/1.8 | N/A |
| Helium pumping speed in the fine mode | ls-1 | 3.1 | 3.1 | 3.1 |
| Time constant for leak rate signal | s | >1 | >2 | >3 |
| Time until ready for operation | mm | ≤ 2 | ≤ 2 | ≤ 2 |
| Power consumption | VA | 420 | 350 | 200 |
| Inlet flange | NW25 | NW25 | NW25 | |
| Protection class | IP | 40 | 40 | 40 |
| Dimensions (WxHxD) | mm | 495 x 456 x 314 | 495 x 456 x 314 | 495 x 456 x 314 |
| Weight | kg | 40 | 35.5 | 30 |
* Backing pump dependent
