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RUSKA 2470
Users Manual
C-2
Density, Air
Density of the air used to computer the buoyant effect of air on the masses. May be
entered directly or computed from ambient temperature, humidity and pressure.
Density, Gas
Density of the gas medium used to compute head corrections. Gas density may be entered
directly or may be computed from the gas used and the current pressure.
Density, Oil
Density of the oil medium used to compute head corrections. Oil density may be entered
directly or may be selected from the list of available mediums.
Density, True
The actual density (mass per unit volume) of the mass or piston. See also Reference
Density; Density of Air; and Mass Apparent.
DUT
Device under test, the device being calibrated.
English Units:
Pressure psi
Ao in
2
b1 in
2
/in
2
/psi
b2 in
2
/in
2
/psi
2
c in
2
/in
2
/
o
C
Mass lbm
Head Height in
Elevation ft
Length in
Sink Rate in/min
Vacuum microns
Temperature
o
C
Trim g
Gravity cm/sec
2
Density g/cm
3
Humidity % RH
Elevation
Elevation above sea level for computing approximate Gravity.
Float Position
Distance of the piston from mid-float. Positive values are higher, negative values are
lower than mid-float.
Formula
Calculates the variable using other variables. See Gravity; Air Density.
Gauge
Pressure measurement referenced to current atmospheric pressure.
Gravity
Force of gravity on the masses. May be entered directly or computed from Latitude and
Elevation.
Gravity Factor
Mass correction factor for local gravity.