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Desalter Interface Measurement

Desalter Interface Measurement
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A Leader In Level Measurement Solutions Desalter Interface Measurement For all Electrostatic Separators Maximize throughput of oil/water separators with reliable, no maintenance, level transmitters. A typical separator contains four phases: Oil on the top (electrically insulating), water and sediment at the bottom (electrically conductive), and a two-part emulsion phase in-between. The upper part of the emulsion phase consists of wet oil (water particles surrounded by oil which is electrically insulating). The lower part is oily water (oil particles surrounded by water which is electrically conducting.) There is an electrical interface in the emulsion where the wet oil meets the oily water. Maximize Throughput • Reduces water content in crude oil Reduces Maintenance Costs • No moving parts. Measures close to the grids Worldwide Approvals Measurement Independent of density, temperature, and pressure changes The electrostatic field operates at maximum efficiency when this electrical interface is close to the electrostatic grid. If this electrical interface is too far away from the grids, coalescing efficiency is significantly reduced. If it touches the grid, it draws huge currents. AMETEK Drexelbrook’s RF Interface Transmitters accurately measure the electrical interface in the emulsion even in upset conditions. The transmitter allows operators to keep this electrical interface close (but not too close) to the grids, to maximize throughput. The AMETEK Drexelbrook instrument also ignores build-up on the sensing element, and is unaffected by density changes It is also applicable for thermoelectric treaters and other electrostatic coalescers.

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Desalter Interface Measurement Specifications Span (min/max) 6 inches (152 mm) to full active section Supply Voltage 24 Vdc nominal (works with 11.5 to 50 Vdc) Load Resistance Ambient Temp Limits Sensor Maximum Temperature and Pressure Sensor Mounting Sensor Wetted Parts All systems include: 1. Electronic Unit for mounting remotely from sensing element. 2. Cable between electronic unit and sensing element. Std. length is 25' (8m); options up to 100' (30m). 3. Sensing Element with cooling extension, inactive, all metal wetted parts 316 SS standard. Note: Specify inactive length to extend...

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