Endress+Hauser OUSAF44, Руководство по эксплуатации

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OUSAF44 Maintenance
Hauser 31
The following description applies for both sides, i.e. the detector side and the lamp side.
Always change O-rings or optical windows
1)
on both sides.
3.
Remove the 4 Allen screws (1/8" or 3 mm) from the window ring. Make sure to loosen
the screws evenly and alternately around the window ring.
4.
Remove the window ring along with the O-ring on the inside towards the assembly.
5.
Gently push the optical window out of the assembly. If the window jams, apply some
acetone around the window seal (O-ring) and wait a few minutes for it to take effect.
This should help release the window. The seal cannot be reused afterwards!
Checking or replacing optical windows and seals
1. Check the window area of the assembly for residue or fouling. Clean if necessary.
2. Check the optical windows for signs of chipping or abrasion.
 Replace the windows if signs of chipping/abrasion are found.
3. Dispose of all the O-rings and replace them with new O-rings from the relevant
maintenance kit.
1) Optical windows only need to be replaced if they are damaged.