Displacer Tx

First configurable displacer transmitter on the market

The modernized, digital E3 Modulevel® from Magnetrol is an advanced, intrinsically safe two-wire instrument utilizing simple buoyancy principle to detect and convert liquid level changes into a stable output signal. The new E3 Modulevel has modernized packaging, increased functionality, diagnostics, and the capability to configure rather than calibrate the transmitter. The E3 Modulevel supports FOUNDATION fieldbus™, HART®, AMS, FDT/PACTware™ communication protocols.

While the cast iron enclosure used on the previous electronic Modulevel design was large and unwieldy, the adapted dual-compartment Eclipse® enclosure used on the unit is modern, light-weight and ergonomic. This enclosure contains the wiring, analog and digital boards. The LVDT (Linear Variable Differential Transformer) is housed separately adjacent to the enclosure and the two are joined by our flame path adaptor. The complete, explosion proof housing assembly is offered in both cast aluminum and stainless steel.

It is the only displacer transmitter on the market with a SFF of 92.3% making it suitable for SIL2 safety loops. The additional diagnostic tools allow the user to integrate this transmitter into highly demanding safety instrument loops (Exida endorsed).

The E3 withstands process temperatures and pressures up to +315 °C / 355 bar, handles liquids with an S.G. as low as 0.23 and up to 2.2, and liquid/liquid interfaces with a minimum density difference of 0.10 kg/dm³. By simply entering 2 process variables (temperature and S.G.) the E3 Modulevel is ready for service.

Unlike the traditional torque tube design, the E3 Modulevel uses a precision range spring. The spring reduces the friction of moving parts (only one linear motion) and provides natural damping. The result is a more reliable and stable output even when the liquid surface is turbulent. Because an LVDT offers twice the travel of a typical RVDT (Rotatable Variable Differential Transformer), the accuracy/linearity of a spring-operated displacer transmitter is superior to traditional torque tube designs.

This displacer transmitter offers high reliability and expanded features which are sure to enhance it already immense popularity on offshore platforms, in petrochemical facilities and in power stations worldwide.