Kern OBN 135 handleiding
Handleiding
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42 OBN-13-BA-e-2511
Lamp centering (HBO)
As the operating time of the HBO lamp progresses, it is possible that its holder will
become deformed due to the strong heat development and thus move from its center.
As this means that the field of view is no longer evenly illuminated, this situation must
be corrected as follows if it occurs.
1. Screw the centering objective into the turret instead of a standard objective.
2. Bring the centering lens into the beam path.
3. Set the FL module to position G (this setting produces a relatively subdued light,
which is pleasant for the eyes).
4. When looking through the eyepieces, a crosshair and the off-centered light spot of
the lamp (also cross-shaped) appear.
5. Now use the two centering screws on the lamp housing to move the light spot into
the center of the crosshairs (caution: heat build-up on the lamp housing).
Lamp replacement (HBO)
1. Disconnect the FL incident light unit from the power supply.
2. Check whether the lamp housing has cooled down.
3. Loosen the screw for the lamp housing cover (only if the housing is cool).
4. Carefully fold out the lamp holder.
5. Loosen the two fixing screws for the HBO lamp.
6. Replace the old lamp with a new one.
7. Tighten the two fixing screws again.
8. Close cover and secure with screw.
The new installed spare lamp may under no circumstances be touched
with naked hands. Impurities will benefit the risk of explosion during
operation.
If there should be nevertheless impurities, the lamp has to be cleaned. We.
recommend for this purpose to use a lint-free cloth soaked with an ether alcohol
mixture (Proportion: 70/30).
Screw for HBO Lamp
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Productinformatie
| Merk | Kern |
| Model | OBN 135 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 6939 MB |
