| Model 300-FID (Non Heated) |
DESCRIPTION
The CAI Total Hydrocarbon Analyzer Model 300 FID is designed to continuously
measure the total concentration of hydrocarbons within a gaseous sample. The
gaseous sample can be ambient air, exhaust gases from an internal combustion
engine, or exhaust gases from a combustion process.
METHOD OF OPERATION
The Model 300 FID uses the Flame Ionization Detection (FID) method to determine
the total hydrocarbon concentration within a gaseous sample. The analyzer contains
a burner in which a small flame is elevated and sustained by regulated flows
of air and either pure hydrogen or a 40/60 mixture of hydrogen and helium or
hydrogen and nitrogen. The burner jet is used as an electrode and is connected
to the negative side of a precision power supply. An additional electrode, known
as the “collector,” is connected to a high impedance, low noise electronic
amplifier. When a gaseous sample is introduced to the burner, it is ionized
in the flame and the electrostatic field causes the charged particles (ions)
to migrate to their respective electrodes. The migration creates a small current
between the electrodes. This current is measured by the precision electro-
meter amplifier and is directly proportional to the hydrocarbon concentration
of the sample.
METHANE ONLY OPTION
The Methane Only Option provides the capability for measuring METHANE ONLY or
TOTAL HYDROCARBONS. The choice is switch selectable from the front panel or
by remote contact closure. Additional hardware includes a heated catalyst assembly
and a three-way valve. Conversion efficiency is greater than 98% for propane
and above. (This option requires the use of 40/60% H2/He fuel and a readout
as ppm CH4).
| FEATURES • CE Approved • Made in USA • Sensitivity 0.1 ppm • Automatic ignite capability – local or remote • Automatic fuel/air shut off • Complete digital presentation including sample/fuel/air pressures (no gauges) • Electronic proportional pressure sample controller • Multiple range capability • Optional continuous methane only • Digital diagnostics •19” rack mount (only 5-1/4” high) |
APPLICATIONS • Stack gases (CEM) • Scrubber efficiency • Process chemical gas analysis • Personnel safety • Solvent recovery • Vehicle emissions • Fenceline (perimeter) monitoring • Non-methane hydrocarbon measurements |
| Model 300-HFID (Heated) |
DESCRIPTION
The CAI Heated Total Hydrocarbon Analyzer Model 300 HFID is designed to continuously
measure the total concentration of hydrocarbons within a gaseous sample. It
contains an internal heated sample pump and an adjustable temperature heated
oven. All components in contact with the sample are maintained at the oven set
temperature preventing condensation.
METHOD OF OPERATION
The Model 300 HFID uses the Flame Ionization Detection (FID) method to determine
the total hydrocarbon concentration within a gaseous sample. The analyzer has
an adjustable heated oven (60 TO 200°C) which contains a heated pump and
a burner in which a small flame is elevated and sustained by regulated flows
of air and either pure hydrogen or a 40/60 mixture of hydrogen and nitrogen.
The burner jet is used as an electrode and is connected to the negative side
of a precision power supply. An additional electrode, known as the “collector,”
is connected to a high impedance, low noise electronic amplifier. The two electrodes
establish an electrostatic field. When a gaseous sample is introduced to the
burner, it is ionized in the flame and the electrostatic field causes the charged
particles (ions) to migrate to their respective electrodes. The migration creates
a small current between the electrodes. This current is measured by the precision
electrometer amplifier and is directly proportional to the hydrocarbon concentration
of the sample.
METHANE ONLY OPTION
The Methane Only Option provides the capability for measuring METHANE ONLY or
TOTAL HYDROCARBONS. The choice is switch selectable from the front panel or
by remote contact closure. Additional hardware includes a heated catalyst assembly
and a three-way valve. Conversion efficiency is greater than 98% for propane
and above. ( This option requires the use of 40/60% H2/He fuel and a readout
as ppm CH4 ).
| FEATURES • CE Approved • Made in USA • Sensitivity 0.1 ppm • Automatic ignite capability – local or remote • Automatic fuel/air shut off • Adjustable oven temperature 60 to 200°C (internally adjustable) • Internal heated filter with external access • Complete digital presentation including sample/fuel/air pressures (no gauges) • Electronic proportional pressure sample controller • Multiple range capability • Optional continuous methane only • Digital diagnostics • 19” rack mount (only 5-1/4” high) APPLICATIONS • EPA Method 25A compliance monitoring of source hydrocarbons • Stack gases (CEM) • Diesel emissions • Process chemical gas analysis • Solvent recovery • Vehicle emissions • Carbon bed breakthrough detection • Fenceline (perimeter) monitoring • Non-methane hydrocarbon measurements |
SPECIFICATIONS ANALYSIS METHOD: Flame Ionization Detector MULTIPLE RANGE CAPABILITY: Eight operation ranges - 10, 30, 100, 300, 1000, 3000, 10,000, 30,000 ppm carbon RESOLUTION: 0.01 ppm Carbon (lowest range) REPEATABILITY: Better than ± 0.5% of full scale LINEARITY: Better than 1% of full scale O2 EFFECT: Less than 2% of full scale CH4 EFFECT: Less than 1.3 times Propane RESPONSE TIME: 90% of full scale in 1.5 seconds SAMPLE FLOW RATE: With pump: 3.0 liter/min. ±1.5 liter/min. INTERNAL SAMPLE FILTER: 0.1 micron replaceable filter provided NOISE: Less than ± 0.5% of full scale ZERO & SPAN DRIFT: Less than 1% of full scale per 24 hours FLOW CONTROL: Electronic Proportional Pressure Controller FUEL REQUIREMENTS: 40% H2/60% He (100cc/min.) or 100% H2 (30cc/min.) (specify at time of order) Fuel inlet pressure 25 psig READOUT: As ppm CH4 or C3H8 (specify at time of order) AIR REQUIREMENTS: Less than 1 ppm Carbon Purified or synthetic air (200cc/min.) Air Inlet Pressure 25psig |
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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
