JCT - Model FTC130-TRA -Thermal Conductivity Detector

Applications: Extractive gas analysis. Quality and process monitoring. Contiuous concentration determination of single gas components e.g. H2, CO2, O2, He. For the H2-measurement at heat treatment in the metal industry. For the H2-measurement in miniplants.

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Precise and long-term stable thermal conductivity measurement
Independent of gas flow and gas pressure
High sensitivity independent of the ambient temperature
Fast response time (T90 approx. 1 s)
Pressure resistant gas paths out of stainless steel (10 bara)
Robust tight aluminium housing (IP65)
Small dimensions
Linear signal output 4 to 20 mA
Easy calibration with covered push buttons
Factory configuration and calibration

Based on micromechanic silicon chip
Detector mounted in a stainless steel housing
Stainless steel housing and electronic mounted in a sealed aluminium housing
Operation of the detector with two heating elements and a temperature sensor at constant 63 °C
Gas concentration corresponds to required compensation energy, depending on cooling of the chip due to varying thermal conductivity
Especially good measuring results are achieved under following conditions:
- at binary gas mixtures, e.g. CO2 in N2, O2 in Ar or H2 in N2
- if only two gas components at multi component mixtures vary in concentration, e.g. CO2 in air
- if the measured component has a significantly different thermal conductivity than the remaining gas components, e.g. H2, He, or in a mixture of O2 and N2

JCT - Model FTC130-TRA -Thermal Conductivity Detector

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