How To Usea Hydrometer - Kohler K91 Owner's Manual

HOW TO USE A HYDROMETER
-
The hydrometer is a direct-reading instrument used to measure
the specific gravity (Spg).
In reading a hydrometer, the
barrel must be held vertically.
To
apply the test it is only
necessary to draw a sample of electrolyte from a cell and
jiggle the hydrometer to be sure the
indicator
is floating free
and record the indicated Spg.
DO N O T M A I N T A I N L I Q U I D L E V E L I N
T H E HYDROMETER BY SQUEEZING THE BULB A S T H I S G I V E S I N A C C U R A T E
READINGS.
The float should not touch any
part
o f the barrel.
A full charge battery equals 1 . 2 6 5 specific gravity (Spg)
unless otherwise specified. Replace battery if there is 50
(0.050) or more points variation between highest and lowest
cell.
Spg. varies with temperature, so for' correct readings the
electrolyte temperature should be at 60°F or higher.
High float (left) means high
Correct method of
specific gravity. Low float
reading hydrometer.
means low specific gravity.
Eye on level with
liquid surface. Dis-
regard curvature
of liquid against
glass parts. b o not
t i It
hydrometer
while reading.
Keep float vertical.
READING
HYDROMETER