PPB to high PPM range
Temperature control with an accuracy
of ±0.01°C
Economical, flexible alternative to
bulky bottled gas mixtures
Description
Advantages Over Bottled Standards
Permeation devices from VICI
Metronics offer several
key advantages over
cylinder-supplied gas
calibration standards.
Economy is always a
major consideration;
customers who have
done the arithmetic, fac-
toring in the cost of cylinder
purchase, shipment , and
disposal, typically discover that the purchase of a
Dynacalibrator and a supply of permeation devices will
start to save them money in the second year of use.
Multicomponent mixtures can be easily generated with a
Dynacalibrator and the appropriate combination of
permeation devices. This technique also allows the removal
of a single component from a gas mixture by simply
removing the appropriate permeation device. Alternative
methods require expensive custom mixtures or a large
number of gas cylinders, which consume valuable lab
space as well.
Bottled standards can also have problems arising from
degradation of the standard within the cylinder, from
changes in the concentration levels as the cylinder pressure
changes, and from interaction of calibration components
and surfaces.
&
Dynacalibrator
®
Model 150
Calibration Gas Generator
Analytical
Components
Systems
VICI Metronics Inc.
PASSIVATED
GLASS-COATED SS
PERMEATION
CHAMBER
(front panel)
0 5 5
OUTLET INLET
DEDICATED SWITCHED-MODE
TEMPERATURE CONTROLLER
PASSIVATED
GLASS-COATED
SS LINE
Carrier gas
source
To
instrument
(Custom plumbing also available)
The Dynacalibrator
®
Model 150 is a constant temperature
system designed to generate precise ppm or ppb con-
centrations of chemical compounds in a gas stream, using
permeation devices as the trace gas source. It is used as
a reference for the calibration of instruments in the field of
gas chromatography, verifying the accuracy of analytical
data generated from air pollution monitoring, industrial
hygiene surveys, odor survey programs, and tracer studies,
and in other instruments that measure gas concentrations.
A passivated glass-coated permeation chamber houses
the permeation device(s), with measured inert carrier gas
sweeping the calibration gas/vapor from the chamber. A
digital temperature controller maintains the chamber
temperature at a set point with an accuracy of ±0.01°C,
traceable to NIST standards. The wide range of temperature
settings (5°C above ambient to 110°C) allows the end user
to generate a wide range of volumetric concentrations for
both low and high vapor pressure chemical compounds,
establ ishing or changing the desired volumetr ic
concentration by simply varying the carrier flow.
Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA