Welch Allyn ELI 150, Service Manual

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Section 5
5-1
Technical Description
Introduction
The MORTARA ELI 150 is an advanced interpretive electrocardiograph system utilizing the latest electronic
technology and software. The ELI 150 offers 12-lead patient ECG monitoring, a 320 by 240 LCD display. A full
function touchpad keyboard, 4-inch thermal writer for printing waveforms and interpretive data, a real-time
electronic clock and calendar, an RS-232 level serial communications port, internal power supply, battery, and
battery re-charge circuitry and optional internal MODEM. The system utilizes CMOS digital components to
minimize power consumption and enhance performance. The ELI 150 is a modular assembly taking advantage of
sub-assemblies designed at Mortara Instrument, Inc.
The system consists of the following major sub-assemblies and parts:

Main System board (Motherboard) Assembly

Front end board

Keyboard and LCD Display

Writer Assembly

Battery

Interconnect Cable Assemblies
The following page shows a block diagram of the ELI 150.
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