Interior Body Change - Mettler Toledo thornton Bedienungsanleitung

pureO Dissolved Ozone Sensor
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3. Rinse the interior body with demineralized water and
carefully dab it dry with a paper tissue.
4. Examine the O-rings visually for mechanical defects,
and replace if necessary.
5. Rinse the interior body (anode, guard and cathode)
with pureO
6. Half fill the new membrane body with pureO
electrolyte.
Important: Make sure that all air bubbles are re-
moved from the electrolyte in the membrane body.
Air bubbles can be removed by sharply tapping on
the side of the membrane body.
7. Slip the membrane body over the interior body while
holding the sensor in a vertical position. The excess
electrolyte will be displaced and must be absorbed
with a paper tissue.
Note: No electrolyte, sample media or contamination
may be present between the membrane body and
the cap sleeve. Be sure both parts are clean and dry.
8. Carefully slip the cap sleeve over the fitted mem-
brane body, holding the sensor in a vertical position
and screw it tight.
9. After changing electrolyte and membrane body, the
sensor must be fully repolarized (use polarization
procedure in the M800 transmitter) in the presence
of ozone and recalibrated.

Interior Body Change

Perform sensor disassembly only in a clean work area.
Refer to Figure 3 on page 23 for parts identification.
1. Unscrew the cap sleeve from the sensor shaft and
carefully pull it off the sensor.
2. If necessary, eject the membrane body from the cap
sleeve by pushing it from the end with a flat fingertip.
Before electrolyte is refilled, the membrane body
must be removed from the cap sleeve.
3. Loosen the retainer nut of the interior body with a
(9.5 mm) or adjustable wrench and remove it.
4. Remove the interior body by pulling it out of the sen-
sor shaft. If necessary use pliers.
Caution: Do not twist the interior body or the con-
nection pins can be damaged.
5. Insert the new interior body in the sensor shaft. Turn
the interior body in the shaft until the slit of the inte-
rior body is aligned with the pin placed in the shaft.
6. Press the body into the shaft and screw the new
retainer nut in place.
© 07 / 16 Mettler-Toledo GmbH
Printed in Switzerland
electrolyte (PN 30 135 837).
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Dissolved Ozone Sensor
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pureO
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