Pressure Gauges

Mc LEOD

MICRO McLeod Gauge is the vacustate suitable for Measurement of Pressure in the ranges of 10 mm to 10-3 mm of Hg. This convenient gauge is a modification of the McLeod Gauge.VACUUM GAUGES WORKING - The system of which pressure is to be measured, is connected by flexible rubber of the vacustat, through a right angle about “A”, as a centre, is possible. To take a pressure reading, the gauge is simply rotated in the vertical position. Mercury runs out of the container “B”, compressing the residual air or gas, contained within the region “C”, “D” to short length of the capillary tube “C”, “B”. By arranging that the level in the comparison capillary “F” is opposite the end of the graduated capillary “C”. “D” slight adjustment of the gauge about the vertical axis is needed to adjust the mercury level correctly.The reading in tube “C”. “E” is the absolute Vacuum in mm of Hg.