Ohaus DISCOVERY SEMI-MICRO AND ANALYTICAL BALANCES Data Sheet - Manual (Page 3)

OHAUS Discovery Application Modes
Statistics Mode
Statistics are used when it is desired to compare a number of samples
and examine the relative deviation of the samples along with other
statistical data. A minimum of three samples are required in this
program. Statistics contains menu options which include: number
of samples, maximum, minimum, difference, sum, mean, standard
deviation, relative deviation, auto sample, and auto print.
In addition to standard weighing, statistical data can be provided for
Animal/Dynamic Weighing and Checkweighing measurements.
Density Mode
Discovery provides users with four methods of density determination to
choose from depending on their need.
They are:
1. User can determine density for solids more dense than water
2. User can determine density for solids less dense than water
3. User can determine density for liquid density (sinker needed – not
included)
4. User can determine density for Porous material (impregnated with oil).
After entering a couple of parameters into the balance, the built in
density table, and mass measurement of the balance take over to
provide rapid and accurate density results, with no manual calculations
needed.
Pipette Calibration Mode
Pipette calibration checks the
accuracy and precision values of
pipettes by weight analysis. The
Discovery DV215CD 0.01mg semi-
micro balance is recommended for
maximum accuracy. To calibrate
a pipette, the user will select the type of liquid to be used in the pipette
(normally water), barometric pressure, nominal value, and unit of measure of the pipette. The balance will do
the rest. The Discovery will accept an alternate liquid’s density in g/cc at current room temperature as well.