Press Release Ref: PC627

Procal Analytics’ unique, In-Situ, Multi-Component Stack Gas Analyser’s capability of demonstrating calibration has impressed Environmental Authorities Worldwide. The instrument mounts directly on the stack or duct with the sample cell protruding into the gas flow. The cell is protected by a sintered, stainless steel envelope which, not only keeps the interior of the cell clean and free from particulates, but also enables certified test gas to be introduced into the cell, forcing out the flue gas, providing calibration of the complete instrument. This feature enables the local pollution inspector to verify that the instrument is working within specification. In some instances, where local regulations require it, such as the US EPA, the zero and calibration routine can be fully automatic with any adjustment being logged and accessible to the inspector.

The test gas used to verify the instrument accuracy is traceable to a National Standard. If the customer does not wish to hold certified test gas, Procal Analytics operate a continuous emission monitoring support team who will visit site with certified test gas, verify the instrument and issue an appropriate certificate. This function can be carried out in the presence of the Environmental Agency or Local Authority Inspector.

Typically, the PULSI 200LR Multi-Component In-Situ Stack Gas Analyser will monitor up to six components, including NO, NO2, SO2, CO, VOC, HCL, HF, Hydrocarbons, CO2, Water Vapour etc.The Procal 5000 In-Situ Full Spectrum UV Stack Gas Analyser will monitor multiple components, including NO, NO2, NH3, Cl2, H2S, and many more. The instruments can be connected to either Procal’s Analyser Control Unit (four analysers), or to a conventional desktop PC running ACU for Windows (up to eight analysers). The concentrations of the pollutants monitored are displayed, data logged and re-transmitted in either a digital or analogue format. If one of the instruments is monitoring water vapour, all the data can be displayed on either a wet or dry basis and, with the addition of an oxygen analyser, normalised to a specific O2 value.

February 1999