Steel

APPLICATIONS

INDUSTRY
(FACILITY)
SERVICE PARAMETER RANGE BACKGROUND TELEDYNE MODEL
Blast furnace Upper portion of furnace / stack
(Hot reducing atmosphere)
Percent CO & CO2
Percent H2
0-40%
0-20%
N2, H2, O2, H2Ov 7500Z (Dual bench)
2000A
Pig Iron Production aka - "Top Gas" Percent O2 0-2, 0-5% N2, CO / CO2, H2Ov Series 3000P
Basic oxygen furnace - BOF Oxidation of carbon in molten Pig Iron via
addition of high purity O2 + steel making flux
Percent CO & CO2 0-40% N2, H2, O2, H2Ov 7500Z (Dual bench)
Top Blown Furnace Analysis point = duct above hood Percent H2
Percent O2
0-10%
0-5%
N2, H2, O2, H2Ov 2000A
Series 3000PB
Soaking pits
Reheat furnace
Steam boilers
Galvinizing furnace
Combustion efficiency Percent O2, CO, combustibles See Max 5 and 9000 series data sheets Flue gas Max 5 / Series 9000
Coke oven
for Benzene emissions control
Coke plant storage tanks & coke
oven gas before electrostatic precipitator
Coke oven flues
Percent O2
(for Benzene emissions control)
Percent O2 and combustibles
0-2, 0-10%
0-5% O2, Percent LEL
Coke oven gas

Coke oven flues
3020P
Max 5 / 9700
Heat treating / annealing furnace Hydrogen / N2 blanketing for
colored oxide prevention
PPM O2
Percent H2
0-10 ppm or less
0-5, 10, 20% H2
H2 / N2
N2
Series 3000T / 311 for spot checking
Series 2000
Hot strip mill High temp furnace (1400C)
O2 detection to prevent brittlement of steel slabs
% O2 0-5. 0-10% N2, H2Ov, CO2 9060Z extractive high temp probe and sample chamber with eductor
Dust collection system / baghouses - airleak detection % O2 and/or CO 0-5% O2
0-2000 ppm CO
Air + dust from BOF, coke oven Series 9000
7500Z NDIR
Continuous caster On the caster or tundish
Prevent slag oxidation of steel
PPM O2 0-10, 0-100 ppm N2 / Ar blanketing 3000TA / 311
Direct reduced iron Multiple locations in plant O2 / H2 / CO / CO2 PPM and Percent levels Process / Flue gas 3000 / 2000 / 7500Z