The Setavap2 is an automated instrument for the measurement of the vapour
ressure of gasoline, solvents, light crude oils, and other similar products.
All functions are accessed via a rwo button keypad and a rotary control.
The digital display leads the operator through the test sequence, displays
the instrument status and the test results. An audible prompt is sounded
when an action is required from the operator.
A sample is injected through a septum into a fixed volume chamber that
is maintained at 37.8°C, ±0.1°C. The vapour to liquid ratio
is 4:1. The pressure is automatically measured at one minute intervals until
three readings are within 0.1 kPa, which determines the end og the test.
Results can be displayed as a total pressure (Ptot), dry vapour pressure
equivalent (DVPE), EPA requirements, or Reid (crude) using pre-programmed
correlation equations, and may be printed via the integral RS232 port and
optional 81002-0 printer. A facility is included to allow two part tests
(Pabs) to be conducted at 38.5°C.
All valve operations are automated including sample draining and chamber
venting and purging. The valves utilise solvent resistant Kalrez seals.
Calibration of temperature and pressure is automated and simple to carry
out.
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