Model 600 FID/HFID
The CAI Model 600 FID/HFID Analyzers are designed to continuously
measure the total concentration of hydrocarbons within a gaseous
sample. The analyzers exhibit superior sensitivity and response time.
The gaseous sample can be exhaust gases from an internal combustion
engine, a combustion process or VOC abatement systems. The instrument
can measure THC in the ppm or percent levels. All internal components
are maintained at the oven set temperature preventing condensation.
Options for Internal Heated Sample Pump and Methane Only measurements
are available.
METHOD OF OPERATION
The Model 600 FID/HFID utilizes the principle of Flame Ionization
Detection (FID) to determine the total hydrocarbon concentration within
a gaseous sample. The HFID analyzer has a heated oven
(191°C)which
contains a burner and an optional heated pump. The small flame of the
burner is elevated and sustained by regulated flows of air and either
pure hydrogen or a 40/60 mixture of hydrogen and (helium or nitrogen).
The split ring detector contains 2 electrodes. One electrode is
negatively polarized using a precision power supply and the other
electrode, known as the "collector" is connected to a high impedance,
low noise electronic amplifier. The two electrodes establish an
electrostatic field. When gaseous sample is introduced to the burner,
it is ionized in the flame and the electrostatic field causes a small
current bewteen the electrodes. This current is measured by the
precision electrometer amplifier and is directly proportional to the
hydrocarbon concentration of the sample.
.
SPECIFICATIONS
DETECTOR: Flame Ionization Detector (FID)
CH4/THC USER DEFINABLE RANGES:0-3 ppm to 3% C
RESOLUTION: 10 ppb Carbon (lowest range)
REPEATABILITY: Better than ± 0.5% of full scale
LINEARITY: Better than ± 0.5% of full scale
O2 EFFECT: Less than 2% of full scale H2/He Fuel
CH4 EFFECT: Less than 1.15 times Propane
RESPONSE TIME: T90 < 1.0 Secs. to 60 Secs.
SAMPLE FLOW RATE:1.5 to 3.0 LPM
SAMPLE TEMPERATURE: Up to 191°C, Non-Condensing (HFID),
85°C Non-Condensing (FID)
OVEN TEMPERATURE: 200°C HFID (85°C FID)
INTERNAL SAMPLE FILTER: 0.1 micron replaceable filter provided
NOISE: Less than ± 1% 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
DISPLAY: 3" x 5" Back Lit LCD
DIAGNOSTICS:
Oven Temperature, Burner Temperature, Cutter Temperature,
Sample/Fuel/Air Pressure, Flow Rates and EPC Control Voltages
KEYPAD
DISPLAYS: Factory Settings, TCP/IP address, Passwords(4), Scalable
Analog Output Voltages, Full Scale Range Select, Auto Cal Times
SPECIAL FEATURES: Calculated NMHC, Auto Ranging, Auto Calibration
(Adjustable through internal clock)
ANALOG OUTPUT: 0-10 VDC & 4-20 mA DC/0-20 mA DC
FUEL/AIR CONTROL: Electronic Proportional Pressure Controller
IGNITION: local, remote or automatic
AMBIENT TEMPERATURE: 5-45°C
WARM-UP TIME: 1 hour
FITTINGS: 1/4” tube
POWER REQUIREMENTS: 115/230 (±10%)VAC@50/60Hz,750watt
DIMENSIONS: 5-1/4”H x 19”W x 23”D
(133mm x 483mm x 508mm)
WEIGHT: 50 lbs.
RELATIVE HUMIDITY: Less than 90%
FEATURES
- CE Approved
- Made in USA
- Sensitivity 0.01 ppm
- Automatic ignite capability - local or remote
- Automatic fuel/air shut off
- Automation Ranging/ Calibration
- Temperature Stabilized Detector
- Internal heated filter with external access
- Calculates, Displays, & Outputs CH4/NMHC/THC
- Electronic proportional pressure sample controller
- Multiple User Definable Ranges 0-3 to 3%
- Optional continuous methane only
- Digital diagnostics
- 19" rack mount (only 5-1/4" high)
APPLICATIONS
- EPA Method 25A compliance monitoring
- Stack gases (CEM / MACT / Process)
- Vehicle emissions - Diesel
- VOC Abatement/ Scrubber Efficiency
- Carbon bed breakthrough detection
- Fermentation Monitoring
- Personnel Safety
- Fenceline (perimeter) monitoring
- Non-methane hydrocarbon measurements
The Methane Only
Option provides the capability for measuring METHANE ONLY or TOTAL
HYDROCARBONS and calculates, displays and outputs the sample's NMHC
content. Conversion efficiency is greater than 98% for Ethane and
heavier hydrocarbons. ( This option requires the use of 40/60% H2/He
fuel and a readout as ppm CH4 ).
Specifications are
subject to change without notice.
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