Maintenance; Inspection Of The Sensor; Visual Inspection - Mettler Toledo InPro 6950 Série Instructions D'utilisation

20
6

Maintenance

6.1

Inspection of the sensor

6.1.1 Visual inspection

To check your sensor, we recommend the following
procedure:
– The contacts of the connector must be dry.
Moisture, corrosion and dirt in the connector can
lead to false readings.
– Check the cable for buckling, brittle areas or
ruptures.
– Before calibration always examine the membrane
foil optically for signs of damage. The foil must
be intact and clean. Dirty membranes should be
wip ed clean using a soft, moist tissue.
Note: An undulated membrane has no influence
on the sensor performance, assuming the mem-
brane is intact.
– The membrane body must be replaced if the
sensor has too long a response time, the reading
is unstable or subject to drift, and if the sensor
cannot be calibrated or the membrane shows sign
of mechanical damage.
– Check the cathode area for discoloration, conta -
mination or cracks in the glass. If necessary rinse
with demineralized water and clean with a clean
soft brush or soft paper tissue.
Attention! Do not use any cleaning agents contai -
ning alcohol. This could damage the sensor or lead
to fault current.
Attention! The glass body is fragile and sensitive to
vibration.
InPro 6950
52 206 137
InPro 6950 Series O
© 02 / 17 Mettler-Toledo GmbH
Sensor 12 mm
2
Printed in Switzerland