Applications

The Model 4400 In-Stream Hydrogen Sulfide Analyzer is used to continuously verify the H2S content of a natural gas sample for the presence of 0-100 ppm levels of Hydrogen Sulfide. This system is used to insure that H2S levels in natural gas collection lines remains at acceptable levels to help guard against the corrosive effects of H2S on compressors, pipelines and process equipment. It is intended for continuous monitoring prior to the addition of odorants to the gas.

The Sierra Monitor Model 4400 provides the user with a low-cost, easy-to-use solution to effective monitoring of natural gas streams. This system accurately measures H2S concentration in the 0-100 ppm range. Fast response of 90% of step change within 30 seconds enables the user to respond quickly to changes in natural gas supply conditions to prevent product contamination.

There is minimal maintenance with the Model 4400 with no tapes to replace, no conditioning solutions, no mechanical stream blenders to calibrate. Calibration is easy with external application of span gas and simple one person adjustments. Calibration and swapping of the gas sensor is a quick and simple operation performed every two weeks.

The 4400-10 receives a low pressure natural gas slip-stream sample. A flow controller in the system delivers a constant flow to the gas sensor and allows for easy calibration and maintenance. An in-line coalescing filter protects the system from sample contaminants.

The Model 4107-99 Transmitter/Display option can accept the 4-20 mA signal from the Model 4400-10 and provide digital display of the H2S concentration, dual concentration alarm contacts, 4-20 mA output and serial MODBUS communication. The Model 4107-99 can be mounted directly to the Model 4400 H2S Analyzer or at a remote location. The Model 4107-99 is mounted in an explosion proof enclosure.