OXYFIRE™

OXYFIRE™

Process & Flow Controls Products Combustion Optimization

HIGH-TEMPERATURE SENSOR

The Oxyfire™ in-situ oxygen sensor measures oxygen concentrations directly in the “high heat” zones of high temperature furnaces, boilers and incinerators. This sensor series is intrinsically safe, requires no electrical input power and generates only a low millivolt output.

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FEATURES & BENEFITS

Available in several standard lengths up to 48″ (1,200 mm)
Field performance can be easily verified using integral verification gas port
“B,” “S,” and “R” thermocouples are available
Alumina, silicon carbide, HR160 alloy and zirconia protection sheaths are available
CE marked
Intrinsically Safe under EN50 014 (1977) clause 1.3
Temperature range: 1,000 °F – 3,000 °F (max) / 538 °C – 1,649 °C (max)
Robust design eliminates “auxiliary sheaths” required on lower quality products
Single side connections ensure cables are safely away from the hot furnace wall
Compatible with standard conduit fittings
Proven track record: used in more furnaces, boilers and incinerators than all other high-temp probes combined
Longest life available
No drift or accuracy problems common to “side hole” probes
High quality construction eliminates the need for cooling air (another failure point in low-end designs)
Patented “boot” provides fast response while protecting the outer electrode and preventing accuracy problems that plague foil-based electrodes
Proprietary, application-specific installation configurations maximize life and accuracy in high-slag environments
Machined 6061T6 aluminum head provides airtight enclosure for electrical connections
Classified configurations available
12-month warranty

SYSTEM CHARACTERISTICS

Net O₂ range:	PPM to 21%
Accuracy:	1.5% of observed process variable or 0.5% O₂, whichever is greater
Control system interface:	UPC Protherm 20 or Oxymit Transmitter
Response time:	Less than one second for 98% of final value
Stability:	Less than 1% deviation in signal output over the life of sensor
Temperature limits:
Process	550-1,600°C (1,022-2,912°F)
Terminal head	Ambient to 149°C (300°F)
Mounting:	Vertical or horizontal
Construction:
Inner tube	Zirconia
Outer protection sheath	Alumina, Silicon carbide, HR-160 high temperature alloy
Sensor head	Airtight, machined 6061-T6 aluminum
Integral T/C	Type “B” standard, “R” and “S” optional
Sensor insertion lengths:	6”, 12”, 18”, 24”, 30”, 36”, 42”, 48” (non-standard) (≈ 15 cm, 30 cm, 46 cm, 61 cm, 76 cm, 91 cm, 107 cm, 122 cm)