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A UK polyphenyl-ether diffusion pump fluid
Vacuum/volume Printed in Great
35lnumber Britain
B/pages
155 to 164/l
VACUUM Manufacturers
0042-207X/85 $3.00 + .OO Pergamon Press Ltd
985
News
and others
Manufacturers and others are invited to submit information for inclusion The Vacuum News Editor Vacuum Pergamon Press Ltd Headington
in this feature addressed to Hill Hall Oxford OX3 OBW
New products and developments New gas flow
calibrator
The Califlow
gas flowrate
Instruments,
who
method
market
of operation
MKS
is now available
instrumentation
makes it substantially technique.
The Califlow
calibrate
measuring
devices
meters, orifice
meters,
mass flowmeters
in the UK. Its unique than any
can easily and quickly
such as rotameters,
measures
gas flowrates
under a piston with a frictionless bore borosilicate volume
by collecting
a volume
on a precision
of gas
places this
time base to establish
increments
technology
of less than 0.035
represented
by a digital
electronic
circuitry
flowrate.
Each volume
increment encoder.
is digital,
eliminating
The instrument minimal
eliminating calibrated
can be accurately
understanding
The Califlow
used by an operator
for purchase
to provide
Tudor
Grammar
Ltd
Road, North Walsham, Norfolk
drift,
to the National
A UK polyphenyl-ether
diffusion
The UK polyphenyl-ether
diffusion
recently
dominated
been exclusively
NR28
9JH.
UK
standard
of a few
pumps of lower heater
wattage
Mews,
Products.
portable
in microelectronics
the Galai TS-1,
in the UK from
infrared
radiation,
within
UK
with full PID Technical for use
of precision
is constructed
ensuring
insulation
to
99% reflection
a highly efficient
very fast warm
of non-contaminating steel, which
in clean room environments the work volume
microchip
optical
approximately
heating
up time (e.g.
25 min) and high stability.
Pyrex and stainless
for certain
Ltd.
by Polarizers
cylindrical
to 800°C
appropriate,
Duravac SE1 2 8LH,
the system is designed
inertia. This produces
ambient
for operation
London
and in clean rooms.
reliable zone of uniformity,
quartz,
good clean vacuum
for the heat treatment
process,
The furnace
point than the
use in diffusion
for high technology
has been introduced
The new system uses gold-plated thermal
Road,
is designed
applications,
parts in laboratories
of all internal
providing
‘state of the art’ furnace
control
Designated
minimize
boiling
permitting
Southbrook
Automated furnace thermal processing programmable
for
range of 1 0e9 mbar.
5 Southbrook
A compact,
whilst
the demand
mbar is required.
a lower
is also available
fluid is now
where
x lO-‘O
fluid having
5 ring product
has until
by import fluid from the USA.
5 ring polyphenyl-ether
at pressures
in the pressure
pump fluid
pump fluid market
for hv and uhv applications
A 4 ring polyphenyl-ether
now available
School
to
clean vacuum
calibrator
service for any type of
error. All
being marketed
gas flowrate
with only a
but Chell are also using it in
a flow calibration
House
An all British manufactured
The Califlow
and the
to 50 litre/min.
Chell Instruments
of Standards.
Chell Instruments.
flowrate
litre/min
of flow technology.
is available
These
error due to electronic traceable
flow ranges from 0.02
is
signalled
all human
feature
in only a few
gas flowmeter.
volume
start and stop the timer when thus virtually
and each unit is individually Bureau
cm3.
pulse sent from an optical
pulses also automatically do so by the operator,
is used to measure
An additional
to be checked
is better than 0.2% of the indicated can handle
their laboratories The latest electronic
flowrate
a
seconds. Accuracy
moves inside a precise
glass tube. The unit automatically
measurement
of the glass tube is required.
any predetermined
by combining
several flowrates
turbine
and laminar flow elements.
seal which
time to a minimum
time with the ability to measure
before emptying allows
Califlow The Califlow
keeps calibration
short sampling
from Chell
more accurate
other flow calibration gas flowrate
The Califlow
now available
calibrator
within
hybridization
materials
makes it particularly and laboratories.
the furnace
such as useful Where
can be evacuated
operations. 155
35lnumber Britain
B/pages
155 to 164/l
VACUUM Manufacturers
0042-207X/85 $3.00 + .OO Pergamon Press Ltd
985
News
and others
Manufacturers and others are invited to submit information for inclusion The Vacuum News Editor Vacuum Pergamon Press Ltd Headington
in this feature addressed to Hill Hall Oxford OX3 OBW
New products and developments New gas flow
calibrator
The Califlow
gas flowrate
Instruments,
who
method
market
of operation
MKS
is now available
instrumentation
makes it substantially technique.
The Califlow
calibrate
measuring
devices
meters, orifice
meters,
mass flowmeters
in the UK. Its unique than any
can easily and quickly
such as rotameters,
measures
gas flowrates
under a piston with a frictionless bore borosilicate volume
by collecting
a volume
on a precision
of gas
places this
time base to establish
increments
technology
of less than 0.035
represented
by a digital
electronic
circuitry
flowrate.
Each volume
increment encoder.
is digital,
eliminating
The instrument minimal
eliminating calibrated
can be accurately
understanding
The Califlow
used by an operator
for purchase
to provide
Tudor
Grammar
Ltd
Road, North Walsham, Norfolk
drift,
to the National
A UK polyphenyl-ether
diffusion
The UK polyphenyl-ether
diffusion
recently
dominated
been exclusively
NR28
9JH.
UK
standard
of a few
pumps of lower heater
wattage
Mews,
Products.
portable
in microelectronics
the Galai TS-1,
in the UK from
infrared
radiation,
within
UK
with full PID Technical for use
of precision
is constructed
ensuring
insulation
to
99% reflection
a highly efficient
very fast warm
of non-contaminating steel, which
in clean room environments the work volume
microchip
optical
approximately
heating
up time (e.g.
25 min) and high stability.
Pyrex and stainless
for certain
Ltd.
by Polarizers
cylindrical
to 800°C
appropriate,
Duravac SE1 2 8LH,
the system is designed
inertia. This produces
ambient
for operation
London
and in clean rooms.
reliable zone of uniformity,
quartz,
good clean vacuum
for the heat treatment
process,
The furnace
point than the
use in diffusion
for high technology
has been introduced
The new system uses gold-plated thermal
Road,
is designed
applications,
parts in laboratories
of all internal
providing
‘state of the art’ furnace
control
Designated
minimize
boiling
permitting
Southbrook
Automated furnace thermal processing programmable
for
range of 1 0e9 mbar.
5 Southbrook
A compact,
whilst
the demand
mbar is required.
a lower
is also available
fluid is now
where
x lO-‘O
fluid having
5 ring product
has until
by import fluid from the USA.
5 ring polyphenyl-ether
at pressures
in the pressure
pump fluid
pump fluid market
for hv and uhv applications
A 4 ring polyphenyl-ether
now available
School
to
clean vacuum
calibrator
service for any type of
error. All
being marketed
gas flowrate
with only a
but Chell are also using it in
a flow calibration
House
An all British manufactured
The Califlow
and the
to 50 litre/min.
Chell Instruments
of Standards.
Chell Instruments.
flowrate
litre/min
of flow technology.
is available
These
error due to electronic traceable
flow ranges from 0.02
is
signalled
all human
feature
in only a few
gas flowmeter.
volume
start and stop the timer when thus virtually
and each unit is individually Bureau
cm3.
pulse sent from an optical
pulses also automatically do so by the operator,
is used to measure
An additional
to be checked
is better than 0.2% of the indicated can handle
their laboratories The latest electronic
flowrate
a
seconds. Accuracy
moves inside a precise
glass tube. The unit automatically
measurement
of the glass tube is required.
any predetermined
by combining
several flowrates
turbine
and laminar flow elements.
seal which
time to a minimum
time with the ability to measure
before emptying allows
Califlow The Califlow
keeps calibration
short sampling
from Chell
more accurate
other flow calibration gas flowrate
The Califlow
now available
calibrator
within
hybridization
materials
makes it particularly and laboratories.
the furnace
such as useful Where
can be evacuated
operations. 155