E3A-JA3A-H11 Datasheet, PDF (1/12 Pages) Magnetrol International, Inc. – Digital E3 Modulevel Liquid Level Displacer Transmitter

Digital E3 Modulevel^®
Liquid Level Displacer
Transmitter
DESCRIPTION
The Digital E3 Modulevel is an advanced, intrinsically
safe two-wire instrument utilizing simple buoyancy prin-
ciple to detect and convert liquid level changes into a
stable output signal. The linkage between the level sens-
ing element and output electronics provides a simple
mechanical design and construction. The vertical in-line
design of the transmitter results in low instrument weight
and simplified installation. The instrument comes in a
variety of configurations and pressure ratings for varied
applications.
The Digital E3 Modulevel has microprocessor-based
electronics with 4 –20 mA/HART^® or FOUNDATION fieldbus^™
output. E3 supports the FDT/DTM standard and a
PACTware^™ PC software package allows for additional
configuration and trending capabilities.
TECHNOLOGY
Changing buoyancy forces caused by liquid level change
act upon the spring supported displacer causing vertical
motion of the core within a linear variable differential
transformer.
As the core position changes with liquid level, voltages
are induced across the secondary windings of the LVDT.
These signals are processed in the electronic
circuitry and converted to a useable output signal. The
enclosing tube acts as a static isolation barrier between
the LVDT and the process media.
APPLICATIONS
MEDIA: Liquids or slurries, clean or dirty, light hydrocarbons
to heavy acids (SG=0.23 to 2.20)
VESSELS: Process & storage, bridles, bypass chambers, inter-
face, sumps & pits up to unit pressure & temperature ratings.
CONDITIONS: Most liquid level measurement and control
applications including those with varying dielectric, vapors,
turbulence, foam, buildup, bubbling or boiling and high
fill/empty rates. Also, liquid/liquid interface level measurement
or density control.