18
6.2
Replacing the opto-cap
To replace the opto-cap you first have to unscrew the
cap-sleeve.
Attention! You don't need any tools fort his step. The
surface should not be damaged, because it is in con-
tact with the medium.
Attention! If the cap sleeve is detached, take care to the
inner part of the sensor shaft. Damage and soiling of
the inner parts and the optical fiber may influence the
Signal or destroy the sensor. Small soiling can be re-
moved with a lint-free cloth.
When changing the opto-cap, please observe the fol-
lowing instructions:
Attention! Make sure that this maintenance step is
carried out in clean place.
1. Unscrew the cap sleeve from the sensor shaft and
carefully pull it off the sensor.
2. Pull off the opto-cap.
3. Place the new opto-cap on top of the inner body of
the sensor shaft.
4. Carefully slip the cap sleeve over the fitted opto-cap
and screw it down. The cap sleeve must be clean
and dry.
5. After each exchange of the opto-cap, the sensor has
to be recalibrated.
InPro 6880 i
52 206 256
InPro 6880 i Series O
© 09/07 Mettler-Toledo AG
Sensor 12 mm
2
Printed in Switzerland