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We are leading supplier of Mcleod Gauge . The conventional Mcleod Gauge has been modified and range 0.001 -10 MM H.G. resulting as an accuracy of ± 5% at scale point.
Principal of operation:
The Mcleod Guage consists of a bulb and capillary tube where their volume of mercury V1 is at atmospheric pressure P 1. when vacuum is applied both are evacuated and when the Gauge is rotated, this volume is compressed to a small portion in the capillary having volume V2 at corresponding pressure (i.e. vacuum) P2boyle's Law P1v1 = P2v2 The pressure is read by comparing the compressed level of mercury with the corresponding graduated scale parallel to the capillary tube.