Helium leaks are manufactured in two modifications – Gelit 1 and Gelit 2, which differ in reproducible flow value and limits of permissible inaccuracy.
Helium leak standards (helium leaks) Gelit 1, Gelit.
DESIGNED
For application as standards of probe gas flow for leakage monitoring using helium leak detectors.
SPHERES OF APPLICATION
Aviation, chemical industry, mechanical engineering, public health/medicine, shipbuilding, fuel and energy sectors, metrological laboratories, scientific researches, food industry.
|
Gelit 1 |
Gelit 2 |
|
| Value of reproduceable flow at temperature (27 ±0,5) °С, Pa•m3/s |
from 7•10-10 to 2•10-8 |
from 3•10-11 to 7•10-10 |
| Temperature correction to flow, 1/ °С |
from 2.5•10-2 to 3.5•10-2 |
|
| Limits of permissible relative error of flow reproduction value, % |
± 15 |
± 20 |
| Dimensions, mm, not more | ||
| diameter |
43 |
|
| length |
212 |
|
| Weight, kg, not more |
0.25 |
|
| Operating conditions: | ||
| ambient temperature, °С |
from +10 to +40 |
|
| relative air humidity, %, not more |
80 |
|
| atmospheric ambient pressure, kPa |
from 86 to 106 |
|
| Mean time between failures, h |
15000 |
|
| Average service life, years |
10 |
|
