DETROIT DIESEL 53
15.2 Trouble Shooting (Engine)
PRESSURE CONVERSION CHART
=
.0735" mercury
1" water
=
.0361 psi
1" water
.4919 psi
1" mercury
=
=
13.6000" water
1" mercury
=
27.7000" water
1 psi
=
2.0360" mercury
1 psi
TABLE 3
and therefore has a concave meniscus. A mercury
column is read by sighting horizontally between the
top of the convex mercury surface (Fig. 2) and the
scale. A water manometer is read by sighting
horizontally between the bottom of the concave water
Fig. 2 - Comparison of Column Height for
surface and the scale.
Mercury and Water Manometers
Should one column of fluid travel further than the
other column, due to minor variations in the inside
Refer to Table 3 to convert the manometer reading
diameter of the tube or to the pressure imposed, the
into other units of measurement.
accuracy of the reading obtained is not impaired.
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