A&D GR Series GR-300 - Manual (Page 51)

13.Specific gravity (density) measurement
GR series balances are equipped with the specific gravity measuring
mode. It calculates the density of a solid according to the weight of the
sample in air and weight in liquid.
□ The specific gravity measuring mode is not ready for use upon receiving the
balance. To use the mode, change the function table and activate the
specific gravity measuring mode.
□ Two ways to set the density of a liquid are available:
by entering the water temperature and by entering the density directly.
Formula to obtain the density
The density can be obtained by the following formula.
A-B
p : Density of sample
A ; Weight of sample in air
B : Weight of sample in liquid
Po
: Density of liquid
Changing the function table
(1) Setting the specific gravity measuring mode
The specific gravity measuring mode is available as one of the units.
To use the mode, select it in the function table. For how to select the
specific gravity measuring mode ,see "Selecting a unit and arranging
the sequence of display " in Chapter 4. (Select I tin it o' I)
(2) Selecting the way to set the density of a liquid
Select the liquid density method from the function table below. The
function table is available only when the specific gravity measuring
mode is selected. For how to select, see Chapter 9" Function Table ",
Class Item
Param­
eter
Summaries
o'S
f a r
Specific gravity
measuring mode
' -/ «
L O
Liquid density
n
• Lf
Enter the water temperature.
i
1
Enter the density directly.
: factory setting
Setting the density of a liquid
1. Press the MODE key as necessary to select the specific gravity
measuring mode. When the processing indicator (upper left ) flashes
with the unit" g" displayed, it indicates that the specific gravity measuring
mode is selected.
IS.Specific gravity(density)measurement Page 50