Analyser provides real-time output of VOC leaks

09 October, 2023

Requiring no filters or liquid sample conditioning, the 204 PermaStream strips hydrocarbons as water samples continuously flows through it. Carrier air sweeps hydrocarbons at a rate of 200 ml/min to an advanced VOC sensor for quantitative analysis in ppb, ppm, or “up to” saturation levels. KECO’s PermaStream membrane technology creates an ultra-clean sample for the VOC sensor that has an average life of 5 to 10 years. No costly consumables are needed for analysis.

The sensor quantities and displays values on a full color touch-screen HMI system, through a 4-20mA output loop or via RS-485, TCP/IP Ethernet, and Modbus. The analyser offers remote and web-based monitoring along with optional concentration relay alarms and diagnostic/fault alarms providing better control over operations.

This ultra-low maintenance, solid state analyser is ideal for use in the chemical, environmental, gas processing, refinery, and wastewater treatment industries in monitoring environmentally-harmful VOCs in holding ponds, cooling tower water, produced water, storm runoff water, building water discharge, effluent water, boiler condensate, engine cooling water, and wastewater. In one application, the Model 204 Hydrocarbons in Water Analyser saved an ethylene plant thousands of dollars in lost product through early leak detection of hydrocarbon leaks in the cooling water of heat exchangers/cooling towers. The company says the analyser can pay for itself in weeks or several months in many applications.

With no moving parts or need for routine calibration, the 204 PermaStream requires minimal upkeep and operates with high uptime. The process analyser offers typical accuracy and repeatability at better than 3% of the full-scale range

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