AMETEK XT Series User Manual

Page 27

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27

Section 3. Load Connection and Sensing

Introduction

This section covers single and multiple load connection, constant voltage and
constant current operating modes, and alternate power supply configurations such as
series and parallel connections.

Load Connection

You can obtain reliable performance from your power supply if you take certain
basic precautions when making load connections.

To obtain a stable, low noise output, pay attention to factors such as conductor
ratings, system grounding techniques, and the way that you make AC input, DC
output, and remote sensing connections. Use a conductor size that satisfies the
current rating requirements. To overcome impedance and coupling effects, we
recommend larger gauge wire and shorter leads.

Where positive load transients such as back EMF (electromotive force) from a motor
may occur, connect a transorb or a varistor across the output to protect the power
supply.

WARNING
There is a potential shock hazard at the load when using a power supply with an
output greater than 40 V. Take appropriate precautions to protect personnel
against accidental contact with hazardous voltages. Also ensure that the
insulation rating of the load wiring and circuitry is greater than or equal to the
maximum voltages to ground being applied.

!

CAUTION
When making load connections, be sure to observe correct polarity locations or
damage to the power supply may occur.

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