Atec Edwards-300E - Manual (Page 2)

DOUBLE PUMP SYSTEM PORTABILITY
The Spectron 300E employs a unique double diffusion
pump system for high performance combined with
rugged reliability. One of the Edwards E040 air
cooled diffusion pumps continuously pumps the mass
spectrometer head via a special restrictor. The other
pumps the test piece. The high compression ratio
acheived gives a fast response and a very fast clean-up
time unaffected by helium in the backing line. In
addition the sensitivity of the Spectron 300E is
independent of the size of backing pump used.
PROCESS CONTROL MODULE
The system is simple to use at any
desired level of control, with keylock
facilities to prevent tampering, which
is particularly important for a
portable instrument.
The unit has an alpha-numeric LED
display for clear viewing at a distance
and there is a standard recorder
output to enable a permanent record
to be made.
UNPARALLELED RANGE
The Edwards 300E is a complete unit
which gives the best specification
without having to buy extras.
The massive, gross and fine test
modes, all built into the unit, cover a
range of atmosphere to
mbar
and the maximum intake pressure
is one atmosphere. The minimum
detectable leak rate is unaffected by
the size of the backing pump. Clean-
up time and stability are superior to
other units.
The Spectron 300E is a strong rugged leak detector
designed to operate in dirty industrial conditions as
well as the clean research areas.
Spectron 300E features fold down carrying handles
but for those applications where the unit is likely to
be in demand over a large site a specially designed
trolley accessory is available. The trolley runs easily
on large ‘go anywhere’ wheels and features a handy
lockable storage space for instruments, accessories
and tools.
Typical applications for the Spectron 300E will be
I II r found at:-
A larger roughing pump can be fitted to tne trolley
rapid evacuation of larger volumes. Alternatively, the
pump can be bench mounted and connected via a side
port on the leak detector. This will not affect the
sensitivity.
Industrial coating equipment sites
Chemical and power plants
Vacuum furnace installations
High energy physics establishments
Space simulation laboratories
Metallurgy installations
Refrigeration installations
Any type of industrial vacuum system
- eg freeze dryers