Mettler Toledo InPro Serie Instructions D'utilisation page 24

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Warning! The O
Contact of electrolyte with mucous membrane or eyes
is to be avoided. Therefore protective gloves and
safety glasses have to be worn for the following
dismantling works.
If such contact occurs, the affected area should be
well rinsed with water. In the case of accident, or
should ever any adverse signs appear, get immedi-
ate medical attention.
When changing the electrolyte, the membrane body
or the interior body, please observe the following
instructions (see also the following illustration):
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 membrane body from the interior
body. If it is tight-fitted, eject by pushing it with
the flat finger tip. Before electrolyte is refilled, the
membrane body must be removed from the cap
sleeve!
3. Rinse the interior body with demineralized water
and carefully dab it dry with a paper tissue.
Note: steps 4 to 7 may only be carried out
when changing the interior body.
4. Unscrew the retainer nut of the interior body with
an adjustable wrench or with a 9 mm wrench.
5. Remove the interior body by pulling it out of the
sensor shaft. If necessary use a plier.
Warning! Do not twist the interior body. Other-
wise the connection pins can be damaged.
6. Insert the new interior body in the sensor shaft.
Turn the interior body in the shaft until the slit of
the interior body is aligned with the pin placed in
the shaft.
7. Press the body in the shaft and screw the new
retainer nut in place.
8. Examine the O-rings visually for mechanical
defects, and replace if necessary.
9. Half-fill the new membrane body with O
electrolyte.
Note: The electrolyte bottle is equipped with a
special pouring system. To ensure proper
functioning, hold the bottle vertically, upside-
down.
InPro 6850i, 6900i, 6950i
52 206 349
InPro 6850i / 6900i / 6950i O
electrolyte has an alkaline pH value.
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Sensor 12 / 25 mm
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© 02 / 09 Mettler-Toledo AG
Printed in Switzerland
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