Zero-point migration

2016-05-20View Original

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It is a double-flange level gauge with capillaries, the flange spacing being 1000 mm (the medium is water). After installation, the transmitter signal is sent to the DCS; is it necessary to perform zero-point adjustment on the transmitter?

Reply #22016-05-20

Both double-flange level gauges and level transmitters require zero-point negative migration.

Reply #32016-05-20

Differential pressure level measurement generally requires calibration; otherwise, the level reading will be inaccurate

Reply #42016-05-20

Migration is required; after installation, simply make the adjustment at the lowest liquid level.

Reply #52016-05-20

Migration must be carried out; the differential pressure displayed after installation but before operation serves as the amount of migration

Reply #62016-05-23

Is “resetting to zero” also called zero-point migration now?

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Zero-point migration

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