Section 1: Introduction
1.1 System Description
The instructions in this manual are for the AMETEK
Drexelbrook Universal IV for level measurement in liquids,
slurries, interfaces, and granulars.
Each system consists of a Universal IV two-wire, 4-20 mA
HARTĀ® electronic unit and a 700 series sensing element. A 380
series connecting cable is also supplied for connection of the
sensing element to remote electronic units.
The Universal IV system is an admittance-to-current transducer.
A change in level produces a change in admittance which results
in a change of current. It is termed a two-wire transmitter
because the same two wires that are used to power the unit also
indicate the change in level (4-20 mA).