Pulsafeeder Pulsar ECA NEMA4X - Manual (Page 7)

1. INTRODUCTION
The ECA is a microprocessor based stroke length control device for use with the PULSAR
diaphragm-metering pump. It has been designed to operate in a variety of industrial
environments. This document describes the ECA controller only. The operation and maintenance
of the PULSAR metering pump is covered in the pump IOM. Please refer to this IOM for important
safety and operational instructions for your PULSAR pump.
2. FOREWORD
The pumps to which these “instructions” refer to are designed for use in industrial areas and
therefore cannot be treated as retail products. The present documentation gives instructions to be
used by qualified personnel only. It must be used in compliance with the regulations, laws
and technical standards in force and cannot, under any circumstances, take the place of plant
standard or additional regulations, including any which are not legally enforceable, which have
been issued with the scope of ensuring safety.
Equipment with special manufacturing or constructive variances may differ in details with respect
to this description.
In case of any difficulty, please contact PULSAFEEDER, INC. Technical Service.
The ECA is rated for NEMA 4 locations as identified on the controller nameplate.
2.1 Description
The ECA is an electromechanical servo controller dedicated to the PULSAR diaphragm
metering pump series. The unit is physically attached and integrated into the pump's design.
The controller allows for precise adjustment of output flow of a process media by means of
stroke length positioning.
The ECA is designed for the international industrial market. The analog control signals offer
flexible remote control. They are fully isolated - from each other as well as earth ground - for
improved protection and reliability.
The ECA is designed to simplify and automate the calibration of the analog signals. Analog
signal calibration is accomplished by simple push button entry. Calibration functions must be
completed while the internal circuitry of the unit is accessible, and therefore at a time when the
surrounding environment is considered safe for electronic work.
2.2 ECA Standard Features
• Electronic Stroke Length Control
• NEMA Type 4x enclosure
• 4-20mA input and output
• EEPROM storage of calibration data
• Diagnostics and Self-Test mode
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