8.2 Indication Drops to Zero at Certain Times
When this problem occurs, deterioration of sensor sensitivity and turbulence of uid ow due to coating on the
vortex shedder bar and owmeter inner tube are suspected as the cause.
How to cope with this problem
1) Remove the vortex shedder bar from the body according to "Vortex Shedder Removal" in the Maintenance Manual
listed in Table 1.1 Related Documents.
2) If there is coating on the inner tube of the owmeter, remove the owmeter body from adjacent pipes and clean it.
<8. Errors and Countermeasures For Display Unit>
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IM 01F07A01-01EN