Instructions for Use
– SCHMIDT
®
Flow Sensor SS 20.500
Page 31
8 Service information
Maintenance
Heavy soiling of the sensor tip may distort the measured value. Therefore,
the sensor tip must be checked for soiling at regular intervals. If the soiling
is visible, the sensor can be cleaned as described below.
Cleaning the sensor tip
To clean the sensor tip from dust or soiling move it carefully in warm water
with cleaning agent or other permitted cleaning fluid (e.g. alcohol). Persis-
tent incrustations or gratings can be previously softened by prolonged im-
mersion and then removed by means of a soft brush. Avoid applying force
to the sensitive probe tip.
The sensor tip is a sensitive measuring system.
During manual cleaning proceed with great care.
Before putting it into operation again wait until the sensor tip is completely
dry.
Troubleshooting
Possible errors (error images) are listed in the Table 9. There is also a
description of the way to detect an error. Furthermore, possible causes
and measures to eliminate the error are listed.
Causes of any error signalling have to be eliminated imme-
diately. Significant exceeding or falling below the permitted
operating limits can result in permanent damage to the sensor.
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