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FGA300 Ex-Situ Flue Gas Oxygen Analyzer

FGA300 Ex-Situ Flue Gas Oxygen Analyzer

The Series 300 microprocessor-based flue gas analyzer provides continuous and accurate monitoring of all types of combustion processes, from simple boilers to specialized heat-treatment furnaces. It uses a proven zirconium-oxide oxygen sensor and a catalytic combustibles sensor. The unique design allows a single system to cover a process temperature range from 392 to 3,092 °F (200 to 1,700 °C).

The microprocessor-based electronics of the Series 300 can display the usual percent excess oxygen and trace combustibles in flue gas. In addition, special parameters such as air factor, combustivity index, excess fuel and equivalent combustibles can also be displayed with the touch of a button on the membrane keypad. At the flip of a switch, the Series 300 electronics makes a specific fuel—such as natural gas, oil or coal—the default fuel. Thereafter, all calculations are based on the selected fuel.

The Series 300 analyzer is available in horizontal or vertical mounting configurations in either weatherproof or explosionproof packages. The Series 300 digital display is available in rack, bench, panel, weatherproof and explosionproof packages. Built-in diagnostic features, such as sensor open circuit, analyzer plugging and sensor aging,
are included as part of the software package. Linear output in the form of voltage or current
and one alarm relay are available for both the oxygen and combustibles sensors.

Features

  • Measures excess oxygen and combustibles in flue gas
  • Ultrastable furnace provides best accuracy
  • Temperatures from 392 to 3,092 °F (200 to 1,700 °C)
  • Proprietary coatings extend oxygen sensor life
  • Plug-resistant, filter-free probe
  • Heater block prevents condensation and corrosion
  • Diffusion/convection loop limits particulate entry

Applications

An in situ oxygen transmitter for use in:

  • Natural gas or oil-fired utility boilers
  • Natural gas or oil-fired process heaters

Specifications

The FGA311 transmitter is economical to own and maintain. Proprietary coatings on the zirconia oxide sensor extend sensor life. Through an innovative design, the sensor can be withdrawn and serviced without removing the analyzer body from the installation point. The FGA311 transmitter has an isolated analog output as well as an RS232 digital interface. It also features fail-safe diagnostics, which include a watchdog timer. It is fully field-serviceable and field-programmable.

Performance

Accuracy ±3% of reading or 0.1% O2
Measurement Resolution Output 4 to 20 mA: 0.01 mA
RS232 Terminal Interface 0.01% O2
Response Time Less than 5 seconds for 63% of step change
Measurement Range Fully field selectable via RS232 interface or onboard switches: • 0% to 5% O2 • 0% to 10% O2 • 0% to 25% O2

Temperature

Process
  • Standard: 300°F to 1200°F (150°C to 650°C)
  • High temperature: 300°F to 1920°F (150°C to 1050°C)
Electronics –4°F to 160°F (–20°C to 70°C) ambient

Calibration

Methods
  • Semiautomatic by push-button
  • RS232 interface
  • Digipot adjustment
Recommended Gas Mixtures 5.0% O2, balance N2 (dependent on application and range)
Calibration Gas Flow 2000 cc/min (4 SCFH)
Reference Air 20 to 50 cc/min, clean, dry instrument quality air (20.93% O2), regulated to 3 psi (0.2 bar)

Functional

Output
  • Analog output: 4 to 20 mA DC, 600 S maximum,isolated
  • Digital output: RS232 communications
Power Consumption
  • 115 VAC, 75 W
  • 230 VAC, 135 W
Process Connection
  • Standard: 1 1/2 in NPTM
  • Optional: 2 in (50 mm) and larger flanges

Physical

Materials
  • Probe: Process wetted or welded parts
  • Standard temperature: 316 stainless steel
  • High-temperature: Inconel® alloy
Enclosure Epoxy-coated aluminum
Dimensions 15 lb (6.8 kg); 19 in (482.6 mm) probe length
Mounting Vertical or horizontal, 1 1/2 in NPT, flanges available in most sizes
Hazardous Location Certifications Explosion-proof/flameproof: Class I, Division 1, Groups B,C&D T6 (electronic housing) T4 (sensor probe) ISSeP02ATEX028 X, Electronics: II 2 GD EEx d IIB T6 ISSeP02ATEX028 X, Process: II 2 GD EEx d IIB T2
Environmental Weatherproof Type 4x/IP66
European Compliance Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD (Installation Category II, Pollution Degree 2)

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Descriptions English Français Deutsch Italiano Português
FGA 300 Brochure acrobat-reader
FGA300H(X) Horizontal Flue Gas Analyzer Operating Manual acrobat-reader
FGA300V(X) Vertical Flue Gas Analyzer Operating Manual acrobat-reader
FGA311 Specifications acrobat-reader acrobat-reader acrobat-reader
FGA311 Transmissor de oxigênio do gás de chaminé da Panametrics acrobat-reader
Gas Analysis Solutions product guide acrobat-reader acrobat-reader


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