Operating instructions

The “Density” application
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10.4 Working with the “Density” application
In this section you will learn more about how to work with the “Density” application and the various methods of density determination.
It is assumed that the “Density” application has already been selected. The following explanations assume that the statistics function
has been de-activated. (You will find instructions how to use the statistics in section 10.5).
10.4.1 Density determination of non-porous solid bodies
For the density determination of non-porous solid bodies, the solid body is first weighed in air and then in the auxiliary liquid. The dif-
ference in weight gives the buoyancy from which the firmware calculates the density.
In the application-specific settings, select the method for “Solid bodies” (section 10.3.2)
and specify the desired auxiliary liquid (section 10.3.3).
Activate the appropriate function keys and information fields (sections 10.3.6 and
10.3.7).
Note: The example at left shows settings for the density determination of solid bodies
when using distilled water as the auxiliary liquid. If you use a different liquid than water
or ethanol, instead of the “Temp. AL” function key you must activate the “Density AL” key
and the information field with the same name.
If you use water or ethanol as the auxiliary liquid, enter its temperature with the “Temp.
AL” function key. (Density tables for these two liquids in the temperature range 10 °C to
30 °C are stored in the balance, see also sections 10.7 and 10.8). The screenshot at left
shows the corresponding input field (input in °C with 1 decimal place).
If you use a different auxiliary liquid than water or ethanol, activate the “Density AL” func-
tion key and use this key to enter the density of the auxiliary liquid you are using at the
current temperature (in g/cm³, max. 5 decimal places). You have to do this because the
balance only stores density tables for water and ethanol. The value you enter appears in
the information field with the same name, which you must also activate. Note: If you are
using a different auxiliary liquid than water or ethanol, the “Temp. AL” function key which
is shown activated in the example at left, as well as the information field with the same
name, is not required. If you wish, however, you can use this function key to enter the
current ambient temperature so it is printed on the report as a record of the temperature
at which the density was determined.
Press the “Start” function key to start the density determination. The balance executes
an automatic tare and you will then be prompted to place the solid body on the balance
to weigh it in air.
If you are working with the optional density kit, follow the instructions supplied with the
kit. If you are working with the below-the-balance hanger (see note, section 10.1), hang
the solid body on the hanger.
The weight of the solid body on the balance is displayed in the bottom left corner of the
window.
Press “OK” to accept the weight value.