HORIBA’s 51 Series of explosion-proof analysers provide safe, reliable and accurate measurements when analysing flammable gases or operating in explosive environments. The 51 Series complies with IEC 60079. The 51 Series explosion-proof analysers infrared allow for the measurement of CO, CO2, CH4 and other organic gases. The TCA-51 uses a thermal conductivity detector for H2 measurements and the MPA-51 and PMA-51 models integrate magneto-pneumatic and paramagnetic detectors for O2 measurements.