Yokogawa TDLS8000 In-Situ Laser Gas Analyzer

TDLS8000 measures the light absorbed by gas with a tunable diode laser and averages along the line, so it does not miss local temperature inequalities in the process. There is no sampling system; measurement is non-contact. A reference cell supports accuracy at low concentrations.

Capacity and options

• Optical path up to 30 m; gas temperature up to 1500 °C.
• Sample ranges: 0-1 to 0-25 % for O2, 0-200 to 0-10000 ppm for CO; CH4, CO2, H2O, NH3, H2S and HCl can also be measured.
• The IF8000 isolation flange is recommended at pressures above 500 kPa or in dusty and corrosive environments; a sample from another point can also be measured with the YC8000 flow cell.
• HART and Modbus TCP; a 7.5-inch touchscreen HMI manages up to four instruments per unit.
• SIL 2 (single instrument) and SIL 3 (dual instrument); Zone 1/Div 1 and Zone 2/Div 2 approvals, QAL1 emission certificate.

Typical uses are furnace combustion efficiency, waste incineration O2/HCl, fire prevention in coal storage and drying moisture measurement.

Choosing TDLS8000

If there is dust or corrosive matter at the measurement window, the window can be purged. The instrument can be installed by one person, is mounted directly or as a bypass, and a calibration cell is provided for offline calibration.

Tetra determines the flange and optical alignment position according to process dimensions and carries out on-site commissioning and reference gas verification. Field-replaceable parts are supplied as spares.