Description of vortex flowmeters measuring low temperature acid fluid should be paid attention to when asked

For vortex flowmeter measurement of low temperature acid fluid, should pay attention to the following: 1. Pay attention to the moisture protection instrument converter, because the vortex flow meter installed in low temperature, low working temperature, moisture condensation, easily within the converter between the electronic components and printed wire line insulation resistance is reduced, affect the electrical performance of instrument, therefore should take the following measures: ( 1) Of the printed circuit board in the instrument before delivery, the converter should be spray coating moistureproof paint, strengthen the protection of electronic components; ( 2) Converter in the terminal board, terminal should be coated insulating latex, isolate bare PCB moisture, prevent the insulation resistance; ( 3) Strengthen the converter service entrance, ends in the mouth and sealed, prevent moisture in the environment into the converter; ( 4) Place inside the converter, a small package desiccant. 2 choose good installation location, to reduce the other devices in the environment of vortex street flowmeter produced by electromagnetic interference and vibration. 3 note choose size of vortex flowmeters, according to the actual flow range, select range.

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