DETROIT DIESEL 53
15.2 Trouble Shooting (Engine)
PRESSURE CONVERSION CHART
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.
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.