- Large
bore by-pass loop isokinetic sampling with large opening size and 2.4 m/s
constant velocity as per the API recommendations related to automatic
sampling system ( autosampler-BSW).
-
Accurate extractor grab size repeatability assured by positive displacement
principle .
- Sample
extracted from process line is directly stored in the sample receiver
chamber integrated to the autosampler .
-
Autosampler receiver chamber is equipped with a mixer to prevent
stratification of heavier fractions during the sample transfer to the 1
liter portable receiver .
- - The
automatic sampling system ( autosampler-BSW) receiver chamber is a floating
piston cylinder to suit with split phase crude-oil ; sampling is operated at
constant pressure .
- A feed
back to the automatic sampling system ( autosampler-BSW) Control Unit
indicates the amount of sample contained inside of the sample receiver and a
local indication of level is given by the piston shaft position .
- Another feed-back free contact is issued to verify that pulses have been
transferred to the sample solenoid valve of the automatic sampling system (
autosampler-BSW).
- The
automatic Sampling processing is operated by pilot pulses issued by separate
Control Unit for safe or flammable area .
- Grabs
are taken in proportion to flow or time .
- A
permanent comparison between the sample collected in the receiver and the
batch volume actually monitored on line is achieved , therefore confirmation
that the automatic sampling system ( autosampler-BSW) extracts a uniform
grabs in flow or time proportional manner is made .
- At the
end of the automatic sampling , compliance with service factor requirement
specified by ISO 3171 is checked and reported
