The OxyTrak™ 390 ex-situ flue gas analyzer is ideally suited for measuring unburned oxygen levels in dirty, rugged combustion applications. A diffusion convection loop design provides high levels of accuracy with minimal service or maintenance required.

The FGA311 is a low-cost, in situ, flue-gas oxygen transmitter. Its compact transmitter design incorporates the electronics and oxygen probe into one weatherproof or explosion-proof package. This microprocessor-based oxygen transmitter is designed to stay on the job with minimum downtime. The transmitter is ideal for clean-burning applications such as boilers, process heaters and furnaces. It offers an economical solution for multiple installation applications.

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.

The Series 351 zirconia oxygen analyzer is suitable for monitoring and controlling any variable gas stream or atmosphere that is clean and dry. Typical uses include oxygen-enriched air feed to furnaces, combustivity index of blended fuel gases and oxygen content during heat bonding of plastics. The Series 350 zirconia oxygen analyzer measures oxygen from 0.1 ppm to 100 percent and in high-temperature reducing atmospheres, the sensor measurement indicates the amount of oxygen and moisture existing in chemical equilibrium. The instrument provides fast response—90 percent of a step change in less than one second. Additionally, measurement accuracy increases at low oxygen concentration.

This analyzer features extremely stable sensor operation. Calibration checks or adjustments are seldom required, thus ensuring many months of trouble-free operation. When calibration checks are required, a one-point calibration is sufficient for the entire measurement range from ppm to percent oxygen