BTU, Wobbe Index and density outputs.
The TFS2 is an all optical analytical platform using a Precisive TFS (tunable filter spectroscopy) infrared sensor. The TFS2 offers a multi-component gas analysis at unparalleled speed. The standard Envent TFS2 measures methane, ethane, propane, iso-butane, iso-pentane and a combined measurement for (n-butane, n-pentane and n-hexane), as well as % level CO2 and H2S.
The spectrometer utilizes a tunable Fabry-Perot assembly that provides wavelength scanning along with advanced spectral processing that can produce response times as fast as 1 to 10 seconds. Additional measurement options are available depending on the application. This includes component analysis for the HPI market such as ethylene, propylenes, and butenes (Canada, Mexico and Middle East). Sampling is with a flowthrough cell, suitable for continuous, online, unattended operation. The analyzer does not require carrier gas, fuel gas or on-site calibration gas. The standard Envent system configuration provides measurements of up to 100% methane, 25% ethane, 25% propane, 10% butanes and 10% pentanes, 100% H2S and 100% CO2. Diatomic compounds such as nitrogen, oxygen and hydrogen are not measured directly and are combined and reported as one group of unmeasured inert gases.
|Measurement Ranges||Methane (CH4): 2000ppm – 100%
Ethane (C2H6): 2000ppm – 25%
Propane (C3H8): 2000ppm – 25%
i-Butane (C4H10): 1000ppm – 10%
n-Butane (C4H10) + n-Pentane (C5H12): 1000ppm – 10%
i-Pentane (C5H12): 1000ppm – 10%
Carbon Dioxide (CO2): 1% – 100% Hydrogen Sulfide (H2S): 1% – 100%
|Component Channels||8 components (consult factory for additional components)|
Methane (80-100%): ± 0.2%, Methane (0 – 80%): ±0.5%
H2S ± 0.2% or 1% of reading, whichever is greater.
|Repeatability||0.01% / 0.05% (repeatability based upon 5-second averaging)|
|Zero Drift||Less than ±0.2% (absolute) per week (zero on air or N2)|
|Calibration||Permanent Factory Span Calibration (note: user component correction factors can be written to system). Zero gas recommended upon start-up and every 1-2 months.|
|Update time||1 second – 10 seconds typical, software configurable (longer averaging time improves precision)|
|Sampling||Technique: Flow through cell (100 ml internal volume)
Flow Rate: 0.1 – 2 LPM (typical)
Pressure: 0 – 2 psig (standard) consult factory for higher pressures.
Sample Temp: 0 – 50°C note cell is maintained at 60°C.
Connections: ¼” Swagelok
|Power||24 VDC (Optional 120/240 VAC, 75 peak 35 watts nominal)|
|Display||128 x 64 Graphic Display; Menu is scrolled by internal button or external magnet.|
|Outputs||128 x 64 Back-lit graphical display with scrolling menu
Dual isolated 4-20 ma loop powered analog outputs
4 additional 5 amp SPDT alarm relays
4 solid state solenoid drivers for stream switching
4 dry contact inputs
Internal archive storage via Envent HMI “ICE” Platform
Modbus serial RS-232 and RS-485
Modbus TCP via ethernet
|Hazardous Area Certification||CSAus
Certified for Class I Division 2, Groups B,C,D
|Dimensions||61.0 x 45.7 x 30.5 cm – 61kg (approx)
24″ x 16″ x 12″ – 135 lbs (approx)