Profile: Texas Analytical Controls Inc specializes in manufacturing instrumentation for oil & gas industries. Our products include H2S online analyzer, CO2 analyzer, gas detection system and calibrators. Hydrogen sulfide process analyzer includes on line monitoring, diagnostics, calibration and programming. It uses a solid-state sensor to detect the level of hydrogen sulfide. The model 5000A hydrogen sulfide gas generator is a battery powered portable instrument that can generate hydrogen sulfide gas in air, either continuously or as needed. A built in pump draws in ambient air through a charcoal filter. This insures a fresh air supply for proper calibration even in potentially contaminated areas. The hydrogen sulfide gas is generated electro-chemically and mixed with the air stream to provide accurate gas concentrations in ranges as low as 50 ppb and as high as 300 ppm.