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Excellent for use in the field
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Can be operated at room temperature
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Can handle arsine and phosphine
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Longer life than Dynacal® devices
Patented G-Cal permeation tubes offer a proven
and repeatable means of generating a desired gas
or vapor concentrations. The permeant gas escapes
through the proprietary membrane system and
mixes with a carrier gas (nitrogen is the most
common) at a controlled flow rate to obtain a
known mixture in ppm or ppb. Applications include calibration of gas monitoring systems
and chromatographs, accuracy check of gas detectors, and generation of known test
atmospheres for a specific application.
G-Cal devices exhibit the lowest temperature sensitivity among available similar products.
The permeation rate of the polymer used in G-Cal devices changes only 1-3% per degree C,
eliminating the need for a temperature-controlled chamber. Most G-Cal devices are
guaranteed for 12 months operating life.
Over 100 different substances are available, including arsine, phosphine, and gas phase
devices such as CO, NO, and methane. Available permeation rates range from less than 200
ng/min to 30,000 ng/min and over. Each G-Cal device is individually calibrated and vertified
to generate a given output (ng/min) vs. temperature. A graph which shows permeation rate
vs. temperature from 0 to 50°C is included with each device.
MORE INFORMATION
G-Cal Permeation Devices
from VICI Metronics
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Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA