IM 12D03D02-01E
5-7
5
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Maintenance
5.5 Storage and O-ring/Gasket Replacement
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Storage Precautions
Care is required when storing the meter and sensor. To maintain in good condition,
observe the following:
(1) Before storage, wash off remaining sample solution from the sensor with water.
(2) Leave the sensor connected to the meter body to protect the connectors and
O-ring from staining. Contamination may cause deteriorated insulation of
connectors or poor water resistance by the O-ring.
(3) Do not place any object on top of the sensor or on the top of the SC72 meter.
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Storage Location
When not in use, store the meter and sensor in a safe place. If it is to be stored for a
long period, store it in a place:
• With low humidity at or near normal temperatures
• Not exposed to direct sunlight or water
• No corrosive gases are present
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Replacing the O-ring and Gasket
A gasket in the battery box and an O-ring on the sensor connector of the meter can
be replaced. Heavily contaminated or damaged gasket and/or O-ring should be
replaced.
CAUTION
When installing an O-ring and gasket, clean them and their mounting surfaces
with a cloth moistened with alcohol so that they are free from dirt. Otherwise, water
resistance may not be assured.
(1) Replacing the O-ring
Install the O-ring on the cylindrical flat part of the connector, as shown below.
O-ring
