GEORGE FISCHER +GF+ SIGNET 2550, Инструкция по эксплуатации

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1
Chapter 1
Introduction
This manual contains descriptions, specifications,
and instructions for the installation and operation of
the +GF+ SIGNET 2550 Insertion Magmeter.
Should you require further assistance, please
contact your Signet supplier.
1.1 Description
The latest in bipolar pulsed DC technology and the
best features of an insertion sensor are packed into
the +GF+ SIGNET 2550 Insertion Magmeter.
Simple installation, easy maintenance, and
state-of-the-art microprocessor technology make the
2550 the best alternative to traditional full-line
magmeters.
The 2550 is based on the Faraday principle, and
provides current frequency output signals
proportional to the flow rate. The system
incorporates automatic temperature compensation,
resulting in outputs that are accurate within
±
2% of
actual flow rate.
The bipolar electronic design and the 10000 M
Ω
input impedance reduce galvanic formation on the
electrodes and minimize coating problems.
The isolated current output provides an universal
signal to recorders, valves, process control and
data acquisition devices.
The open collector frequency output is compatible
with all powered flow controllers.
See Section 3.9 for an exploded view of the
2550.
Faraday’s Principle: Move-
ment of a conductive fluid
through a magnetic field
generates a perpendicular
electromotive force propor-
tional to its velocity.
Fully Developed
Flow Profile