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9.1 Selecting the Measuring Unit
For measuring your samples you can choose between a number of predefined measuring units or you
can import custom functions into the instrument and select one of them as the measuring unit. Contact
your SBS representative to obtain a custom function from SBS.
All measuring units are derived from the density of the sample at the measured temperature.
1. Press <Menu> and select “Measuring Units”.
The list of the predefined measuring units is displayed.
2. Select the preferred measuring unit and press <OK>.
Some measuring units contain sub items with options to be selected.
3. Select the preferred option and press <OK>.
The measuring unit has now been changed.
9.1.1 Categories of Measuring Units
Meas. Units Options Description
Density Density Density at the displayed measuring temperature
in g/cm
3
or kg/m
3
.
Density @ xx
C Density at the chosen reference temperature in
g/cm
3
or kg/m
3
.
Specific Gravity SG: SG Temp (ºC or ºF)
α (g/cm
3
/K).
Specific gravity is the density of the sample (at
the chosen reference temperature) divided by
the density of water (at the chosen reference
temperature). Temperature influence is
compensated by the set temperature coefficient
α (g/cm
3
/K).
Concentration of an ethanol/water mixture in %
by volume at 20ºC. The measuring range Is 0 to
100% v/v.
Concentration of a mixture of alcohol and water
in % by weight at 20ºC. The measuring range is 0
to 100% w/w.
Alcohol US @ 60ºF (ºProof) Degrees Proof at 60ºF. The measuring range is 0
to 200 ºProof.
API Gravity B
API Gravity D
API number for the product group referred to
the reference temperature of 15ºC or 60ºF.
Product Group A: Crude Oil
3
Depending on the set temperature unit (ºC or ºF), the API values are automatically displayed @ 15ºC or @ 60ºF.
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