1.
Electromagnetic
flowmeter zero instability analysis of the causes (
1)
Pipe is not filled with liquid or liquid containing bubbles.
(
2)
Evaluate pumps liquid pipe flow as small flow and actually exist.
(
3)
Liquid (
If the liquid conductivity uniformity is bad, electrode pollution, etc. )
The reason why.
(
4)
Signal circuit insulation.
2。
Unstable electromagnetic flowmeter zero solution & shy;
(
1)
Pipe is not filled with liquid or liquid containing bubbles are for technology reason, at this time should be confirmation request technology personnel, process of normal, the output value can be back to normal.
(
2)
Pipeline with micro flow, this is not a fault electromagnetic flowmeter.
(
3)
If the sediment measurement tube wall or on the inner wall of the measuring tube fouling, or electrode contamination, all have zero changes may occur, this time must be clean;
If zero little change, also can try to zero.
(
4)
Due to the effect of environmental conditions, such as dust, oil may enter the watch case body, therefore, whether or not the parts need to check the electrode insulation down or damaged, if do not conform to the requirements of the insulation, it must be cleaned up.
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