S p e c i a l A p p l i c a t i o n S e r i e s LIQUID INTERFACE LEVEL MEASUREMENT

The Emulsion Layer he need for interface measurement arises whenever immiscible liquids–those incapable of mixing—reside within the same vessel. The lighter material rises to the top and the heavier material settles at the bottom. In oil production, for example, water or steam is used to extract oil from a well. Well fluids then route to production separators where they settle into their primary constituent parts as a water-hydrocarbon interface. Water may also be used as a transport medium or a cleaning agent and forms an interface with an allied material which is later extracted. Interfaces...

The Tuffy® side-mount, float-type switch is compact and economical. A simple and reliable T20 topmount switch. One of Magnetrol’s many float or displacer, external cage switches. Displacement-type controls are well-suited for simple or complex interface applications. Modulevel MEASUREMENT PRINCIPLE: A float calibrated for interface service must be heavy enough to penetrate the upper liquid yet buoyant enough to float on the lower liquid. PROCESS CAPABILITIES: Max Pressure: 3000 psig @ +697° F Min Pressure: Full Vacuum Max Temperature: +1200° F Min Temperature: -150° F Sensitivities: 0.1 is the...

RF TECHNOLOGY: KOTRON® RF (Radio Frequency) Capacitance-type electronic controls offer many interface measurement advantages: • Up to 150-foot measurement range • Conductive and non-conductive liquids • Corrosive and abrasive media resistance • Extensive sensor probe selection • No moving parts—Maintenance free! RF MEASUREMENT PRINCIPLE: As media rise and fall inside a tank, the amount of capacitance developed between the sensing probe and the ground reference rises and falls. In RF switches, this change is sensed by the electronics and converted into a relay operation. In RF transmitters, the...

TD TECHNOLOGY: THERMATEL® switches offer a new level of interface performance and reliability in thermal dispersion technology (see productspecific features in grey box below right): • Accurate, fast-responding technology • Easy, quick calibration • Not affected by temperature, pressure or viscosity. • No moving parts—Maintenance free! TD MEASUREMENT PRINCIPLE: Switches using thermal dispersion technology detect heat transfer which reduces the temperature difference between the switch’s two sensors; one sensor is for reference and the other is heated to a temperature above the process temperature....

LOCAL REMOTE: A chambered Eclipse transmitter at an Oman oil refinery (above) utilizes a Local Remote assembly for installation convenience and flexibility. GWR TECHNOLOGY: An ECLIPSE® Model 705 Guided Wave Radar (GWR) transmitter is capable of measuring both an upper liquid level and the interface level: • Two-wire, 24 VDC, loop-powered • Not effected by changing specific gravity • Probe-based GWR is subject to less signal dispersion and attenuation. • Easy configuration without changing level • Quick connect/disconnect probe coupling • No moving parts—Maintenance free! GWR MEASUREMENT PRINCIPLE:...

MLI TECHNOLOGY: Flagship of the Orion Instruments product line, the AURORA® Magnetic Level Indicator (MLI) combines Eclipse Guided Wave Radar and float technology into a truly redundant measurement system. Aurora’s chamber houses both an Eclipse probe and a float: • Single-chamber redundancy in a compact, precision fabricated chamber • The Eclipse probe is mounted off-center within the chamber permitting the float to rise and fall as level changes • Ideal for low specific gravity applications and low-dielectric media such as propane, butane, and hexane MLI MEASUREMENT PRINCIPLE: Orion’s Aurora...

PLEASE NOTE: The instruments recommended in this guide are based on field experience with similar applications and are included as a general guide to instrument selection. However, because all applications differ, customers should determine suitability for their own purposes. S p e c i a l A p p l i c a t i o n S e r i e s CORPORATE HEADQUARTERS 5300 Belmont Road • Downers Grove, Illinois 60515-4499 USA Phone: 630-969-4000 • Fax: 630-969-9489 magnetrol.com • [email protected] EUROPEAN HEADQUARTERS Heikensstraat 6 • 9240 Zele, Belgium Phone: 052 45.11.11 • Fax: 052 45.09.93 BRAZIL: Av. Dr. Mauro...