The BASELINE® CHA Methane / Non-Methane Analyzer uses a flame ionization detector (FID) in conjunction with an oxidation catalyst switched in and out of the sample stream. The catalyst oxidizes all hydrocarbons except methane to produce a methane only measurement. This catalytic reaction relies on the presence of oxygen (O2) in the sample. The methane value is then subtracted from the total hydrocarbon concentration to determine the non-methane hydrocarbon reading. Output options include analog, digital and logic capabilities.
Our methane and non-methane analyzer provides fast data handling and highly reproducible results. Errors commonly associated with catalyst characteristics have been eliminated providing an extremely stable and accurate signal. Because the non-methane signal is the difference in the two measured quantities, it is more stable, thus greatly reducing its systemic zero drift. The non-methane signal response factor is adjusted and thus closely correlates to the carbon number. This analytic method eliminates integration errors that can be present in gas chromatographic (GC) methods.
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Feature
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Benefit
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Proprietary FID Design
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Meets a wide range of applications like trace levels for bulk gas testing to percent levels in well logging
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Optional ranges available
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Excellent catalytic conversion of CO and CO2 to methane for Total Carbon Measurement
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Excellent oxidation catalyst
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Provides accurate measurement of Methane only which is subtracted from Total Hydrocarbons for Non-Methane value
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Simple, intuitive interface
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Saves time in training operators for configuration and maintenance
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Large graphical running display
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Quickly and easily recognize current level of total hydrocarbons
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Optional Graphing Feature
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Recognize trends over time that can help control your process or identify key changes
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Ethernet and serial customizable output
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Seamless data transfer into your system in CSV or ASCII formats for record keeping and creating reports
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Programmable relays and analog outputs
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Obtain information on concentration, levels and events
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FlowGuard control of fuel, air, and sample with automatic shut-off
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Continuous, safe operation
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Benchtop or rack-mountable
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Flexible platform to meet various installation applications
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3U size - 5.25” (13.02 cm) high
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Saves valuable rack space for your system
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BASELINE® CHA Methane / Non-Methane Analyzer
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Units
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Detector
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Flame Ionization (FID) w/ oxidizer
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Ranges
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User definable based upon calibration (as methane):
Ambient version:
- Low – 0.03 ppm to 50 ppm
- Medium – 0.06 ppm to 500 ppm
- High – 0.15 ppm to 5000 ppm
120°C version:
- Low – 0.06 ppm to 50 ppm
- Medium – 0.6 ppm to 500 ppm
- High – 1.0 ppm to 5000 ppm
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Accuracy, Repeatability
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±1% full-scale
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Drift, Zero
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±0.01% full-scale, 24 hours
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Drift, Span
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±1% full-scale, 24 hours
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Response Time
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Response Time T90 < 30 seconds
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Sampling
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Internal single point, pump optional
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Alarms
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Multilevel concentration and fault alarms, audible and visual
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Calibration
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Programmable automatic or manual calibration
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Support Gas Requirement
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Support Gas Requirement UHP Hydrogen (H2) – 35 cc/min
Zero Air – 175 cc/min
Span gas – methane/propane is typical
Fuel blend options available
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Display
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1024 X 600 Graphical 7” (17.8cm) diagonal capacitive touch
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Outputs, Standard
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RS-232
LAN/Ethernet
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Outputs, Optional
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Output Board: Analog, 1 programmable 0-20 mA or 4-20mA isolated output; relays 5 programmable Form A relays rated to 3A@230VAC; 6 Digital inputs
Additional Relay Boards: 8 or 16 additional relays
Additional Analog Board: 8 additional analog outputs
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Operating Temperature
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32 to 104°F (0 to 40°C)
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Operating Humidity
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0 to 95% (non-condensing)
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Configuration
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Benchtop or 19” (48.3cm) rack-mount, 3U
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Physical Specifications
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5.25” H x 19” W x 16.25” D (13.02 cm x 48.26 cm x 41.28 cm)
<20 Lbs. (9.07 kg)
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Electrical Requirements
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Voltage: 100 - 240 VAC 50/60 Hz, 1 A
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Preventive Maintenance Kit
- Includes all parts potentially needed on-hand to properly maintain your instrument
Service & Support Options
- Start-up and training, 1 day onsite
Gas Generators
- Hydrogen generators
- Zero air generators
Support Parts
- Electronic flowmeter
- Tubing
Environmental Monitoring
- Air Quality Monitoring
- Fugitive Emission Monitoring
- AMC in Cleanrooms