For monitoring & controlling Oxygen activity in unknown atmospheres ( 100% to sub
ppm levels ) Zirconia ( ZrO2 ) is unparalleled in terms of durability & reliability.
offer two distinct types of IN-SITU PROBES
- Reaction Bonded: (RB) unsheathed probes
- Fusion bonded: (FB) sheathed probes
Reaction bonded probes, which can be used without external sheathing and the associated
assembly and maintenance problems make use of a patented process in which a ZrO2
thimble or pellet is bonded onto an Al2O3 tube by reaction through a platinum washer.Fusion
bonded sensors on the other hand use sintered ZrO2 pellet cemented and fused to
the Alumina tube.
Length of Probes
Standard lengths available are 150, 300, 600, 900, 100, 1200 and 1500 mm. Longer
lengths up to 2500 mm available on special request.
For RB sensors the thermocouples are normally type 'R' or 'S' (Pt.Pt.Rh 13 % or
Pt.Pt.Rh 10 %) For FB sensors the choice is extended to 'K' type (chromel-alumel),
for lower temperature applications.
For extra high temperatures probes are supplied with 'B' type (Pt.Rh 6% - Pt.Rh
30 %) thermocouples (RB sensors only)
- Temperature Limits
- FB sensors upto 1400°C
RB sensors upto 1800°C
- Energy Conservation
- Boilers of any / all types
- Rotary Kilns
- Reheating / heating furnaces
- Tunnel Kilns
- Heat Treatment furnaces
Power plants, Cement, Sugar, Paper, Textile, Steel, Chemicals, Petro-chemical, Fertilizers, Ceramic and other industries