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Zero point regulation method for differential pressure transmitter

A differential pressure transmitter and zero-point adjustment technology, applied in the field of adjustment, can solve problems such as troublesome operation, unclean drainage, zero-point drift, etc., to save time and improve efficiency.

Inactive Publication Date: 2012-03-21
DONGYING HUATAI CHEM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is not only cumbersome to operate, but also if the medium is liquid, especially the differential pressure transmitter, the discharge is not clean, and it is easy to cause zero point drift, resulting in inaccurate measurement results. It takes a long time to reach the working state (the discharged condensate needs to be re-condensed)

Method used

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Embodiment Construction

[0006] A method for adjusting the zero point of a differential pressure transmitter. Close the inlet valve on the low pressure side and open the balance valve, so that the balance between the high and low pressure sides can be achieved. The adjustment of the valve can correct the zero point of the transmitter through the zero adjustment screw or a hand operator. No excretion is required.

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Abstract

The invention provides a zero point regulation method for a differential pressure transmitter, which comprises the following steps that: a low-pressure side inlet valve is closed, and a balance valve is opened, so the high-low-pressure-side balance can be reached, the valve regulation can be realized through the zero point corrosion via a zero regulating screw or a hand operator, and the discharge is not needed. The zero point regulation method has the advantages that the zero point corrosion can be carried out on the transmitter only through operating the two valves, the time is saved, the discharge is not needed, the transmitter can enter the work state in time, and the efficiency is improved.

Description

technical field [0001] The invention relates to an adjustment method, in particular to a method for adjusting the zero point of a differential pressure transmitter. Background technique [0002] At present, the zero point adjustment of the traditional differential pressure transmitter needs to close the high and low pressure inlet valves, open the balance valve, and open the high and low pressure side discharge holes before the zero point adjustment can be performed. This is not only cumbersome to operate, but also if the medium is liquid, especially the differential pressure transmitter, the discharge is not clean, and it is easy to cause zero point drift, resulting in inaccurate measurement results. It takes a long time to reach the working state (the discharged condensate needs to be condensed again). Contents of the invention [0003] In order to solve the deficiencies of the prior art, the invention provides a method for adjusting the zero point of a differential pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L19/02
Inventor 曹旭升
Owner DONGYING HUATAI CHEM GRP CO LTD
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