Density Measurement - A&D GP-61KS Instruction Manual

13. DENSITY MEASUREMENT

The GP series balance is equipped with a density mode. It calculates the density of a solid using the
weight of a sample in air and the weight in liquid.
The density mode was not selected for use when the balance was shipped from the factory. To
use the mode, change the function table and activate the density mode.
Inputting order, of the parameters necessary for density measurement, can be changed.
A part of the parameters can be changed and used for re-calculating the density.
Press the SAMPLE key to confirm or select each parameter. The parameters are stored in
non-volatile memory. Each time a part of the parameters are changed, the density can be
re-calculated.
Two ways to set the density of a liquid are available in the function table, "Liquid density input
(ldin)": by entering the water temperature or by entering the density directly.
When the density mode is selected, the response adjustment and self check function can not be used.
Formula to obtain the density
The density can be obtained by the following formula.
Prior to measurement: Changing the function table
Prior to measurement, change the function table as follows.
(1) Selecting the density mode
To use the density mode, select it in the function table. Once selected, the density mode is
available as one of the weighing units and can be selected by pressing the MODE key. For
details, refer to "4-2 Changing the Units".
(2) Selecting a way to set the density of a liquid
Select the liquid density input method from the function table below. The function table is
available only when the density mode is selected.
Class
d5 fnc
Density function
Measuring the density
Note
If the liquid temperature or the type of liquid is changed during measurement, reset the value
of the liquid density as necessary. For details, refer to "C. Entering the density of a liquid.".
(1) Entering the density mode
1 Press the MODE key as necessary to select the density mode. When the density mode
begins, "d-a" (weight in air), "g (kg for the GP-102K)" for the unit and the processing
indicator are turned on.
Where
Item
ld in
Liquid density input
A: Density of a sample
A: Weight value of a sample in air
B: Weight value of a sample in liquid
B : Density of a liquid
Parameter Description
0 Water temperature
1 Liquid density
0 = Factory setting
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