Mechatronic flow sensor
SBZ224
27
13 Maintenance, repair and disposal
The operation of the unit is maintenance-free.
Only the manufacturer is allowed to repair the unit.
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After use dispose of the device in an environmentally friendly way in accordance with the
applicable national regulations.
13.1 Cleaning the device
If measurement errors occur because of an insufficient filtration cleaning may be required:
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Unscrew sensor head.
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Remove float and spring.
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Clean the inside of the float, spring and housing, e.g. by means of compressed air.
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Before re-assembly check O-ring for damage. If necessary, replace and grease.
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To restore the measurement accuracy, put the float and spring on the sensor head and press it
until you feel a mechanical stop. Hold for at least 2 seconds.
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Reinstall the components directly afterwards.
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Tighten sensor head with a tightening torque of 150 Nm.
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1
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5
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Fig. 21: Cleaning the sensor
1: Sensor head
2: Float
3: Spring
4: O-ring:
5: Non-magnetic tool
6: Mechanical stop