Digital E4 Modulevel Liquid Displacer Transmitter

E4 Modulevel® liquid level transmitter

The E4 Modulevel® is a loop powered, two-wire instrument, utilizing simple buoyancy principles to detect and convert liquid level changes into a stable output signal. The linkage between the level sensing element and output electronics provides a purely 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 E4 Modulevel has microprocessor based electronics with 4–20 mA/HART® digital output. E4 supports the FDT/DTM standard and a PACTware™ PC software package allows for additional configuration, diagnostics and trending capabilities.

Technology

Displacer transmitter

Electronic displacer level transmitter technology operates by detecting changes in buoyancy force caused by liquid level change. These forces act upon the spring supported displacer causing vertical motion of the core within a linear variable differential transformer.

Features

• Safety Integrity Level (SIL) 2 Suitable
• No calibration required; configuration only
• Available with 4–20 mA and HART® 7 with PACTware™ PC software and the Field Device Tool (FDT); AMS ready
• NAMUR NE 107 diagnostic coverage
• Range spring suppresses effects of turbulence to produce stable output signal
• Full range of hazardous location approvals with international certifications
• Order entire Modulevel or retrofit the latest transmitter onto existing displacer assemblies
• In additional to total level, suitable for interface measurement or specific gravity output