Hydrogen sulfide analyzer 933

natural gasconcentrationfor integration

The 933 is a unique ultraviolet (UV) photometric analyzer system designed for the low-level measurement of hydrogen sulfide (H2S), carbonyl sulfide (COS), and methyl mercaptan (CH3SH) in natural gas applications. Capable of unattended operation for an extended time period, the 933 consists of a fully integrated analyzer and sample system. It provides a fast response time to increasing or decreasing H2S and other sulfur species concentrations. The 933 uses AMETEK’s proprietary frontal elution chromatography sampling technique, combined with the exceptionally high-resolution, multi-wavelength 900 Series UV optical bench. These combine to provide an accurate, interference-free measurement. With optional measurements also available for carbonyl sulfide (COS) and methyl mercaptan (CH3SH), the 933 is ideal for a range of applications in the hydrocarbon processing, natural gas, and petrochemical industries. SELF-RECOVERY Two self-regenerating columns are employed in the 933. While one column is conditioning the gas sample, the other is automatically regenerated. INTERFERENCE-FREE MEASUREMENTS The 933 utilizes unique, proprietary frontal elution chromatography to separate H2S, COS and CH3SH from interfering components in natural gas. ACCURATE PERFORMANCE Non-dispersive, dual-beam hollow cathode UV photometric detection of H2S (optional COS and CH3SH) provides accuracy better than ±2% of full scale on standard ranges. Features • Fully integrated analyzer and sample system • Self-recovery after high-concentration H2S events • Fast response to changing concentrations • Optional COS and CH3SH measurements