
| MODEL 10/20/30 GAS ANALYZERS (One, Two or Three Components) |



Pricing begins at $2,900/US - An inexpensive
means of accurately monitoring or controlling CO, CO2, CH4 or O2 gases compactly
integrated into your own system!
NDIR PRINCIPLE OF OPERATION
The analyzer uses a technique based on the infrared absorption
characteristics of gases to measure gas concentration. Use of an efficient single
beam design results in a good long-term stability.
A single beam of infrared energy is modulated and passed through a sample cell
containing the gas to be measured. The beam emerges attenuated by the amount
of energy absorbed by the gas(es) in the sample. Changes in the concentration
of the gas(es) result in changes in the intensity of the beam. The remaining
energy in the beam is passed serially through two cavities of an infrared detector,
a mass-flow sensor filled with gas of the type to be measured.
Changes in the intensity of the beam change the pressure differential between
the cavities and consequently the balance of the electrical bridge in the detector
circuit.
Electronic processing of the imbalance signal is used to generate an electrical
output signal proportional to the concentration of the gas measured.
O2 PRINCIPLE OF OPERATION
The Model 10/20/30 is designed to measure percent levels of oxygen. The analyzer
uses a galvanic fuel cell, which is an electrochemical transducer. The fuel
cell contains a cathode, anode and an electrolyte. A permeable membrane holds
the electrolyte in the cell. The sample flows over the membrane and oxygen diffuses
into the fuel cell where it reacts with the electrolyte. This reaction produces
an electrical current which is directly proportional to the concentration of
oxygen in the gaseous mixture surrounding the cell.
The current output is linear with an absolute zero. In the absence of oxygen
the fuel cell produces no current.
STANDARD APPLICATIONS
The Model 10/20/30 contains a dedicated infrared analyzer bench for each NDIR
gas component and can be incorporated into an integrated system for continuous
measurement of CO, CO2, CH4 (or O2). Any three components may be selected for
measurement at the time of analyzer purchase.
FEATURES/BENEFITS
Microflow Detector
High sensitivity, long life, rugged, minimal interference from contaminant gases.
Low sensitivity to vibration, no optical or mechanical adjustments required.
Single Beam Optics
No optical balance adjustments. Long-term photometric system stability.
Non-Corrosive Sample Cell
Sample cells are brass SUS-304 finish to eliminate corrosive degradation in
conventional (gold-polished) cells.
High stability & Easy Maintenance
Design Technology assures long-term stability and very infrequent maintenance.
Trouble-Free Operation
Microflow Detector, single beam optics and solid state electronics assure simple,
inexpensive, long term, trouble-free operation
Ranges
One range per gas component is standard.
A second range is optional.
Note: Maximum range ratio between high and low range is
5:1
Readout
Each gas components digital display will read out in engineering units.
home
sitemap
EAS service
links
testimonials
Environmental
Analytical Systems
286 Mask Island Drive
Barry's Bay, Ontario, Canada K0J 1B0
Phone:
613 756 0101
Toll Free (Canada only):
1 800 427 8591
Fax: 613 756 0909
email: info@enviro-analytical.com
©Environmental Analytical Systems 2003