Teseo CBA 3G-450 Manuale utente

cBA 3G-450 800 MHZ

to 3.1 GHZ450 wAtt

AMplifier

user MAnuAl

601-300A

CBA 3G-450 User Manual

cBA 3G-450 800 MHZ

to 3.1 GHZ450 wAtt

AMplifier

user MAnuAl

1 Safety information 5

2 Introduction 7

2.1 CBA 3G-450 introduction 7

3 Unpacking and installation 9

3.1 Unpacking 9

3.2 Installation 9

4 Operation 12

5 Specications 16

6 Warranty 18

7 Adresses 20

contents

This apparatus has been designed and tested in accordance with BS EN 61010-1,

and has been supplied in a safe condition. This manual contains some informa-

tion warnings which must be followed to ensure safe operation, and to retain

the apparatus in a safe condition.

This apparatus does not incorporate components liable to explode or implode

during normal operating conditions.

In normal operating conditions this apparatus does not liberate injurious or

poisonous gases.

Sound levels of this apparatus after installation in a rack are below 85 dBA,

as required by EN 61010-1. However local regulations may have a lower limit

or the system as a whole may exceed the local limit. In this case appropriate

action should be taken, ie of use of any protective equipment required by local

regulations.

This apparatus is of installation category 2.

1 sAfety inforMAtion

CBA 3G-450 User Manual

This apparatus is capable of delivering harmful levels of

radio frequency power. Ensure at all times during opera-

tion that the RF output is properly terminated with an

adequately rated termination or transducer, and that the

cables and connectors attached to the apparatus are in

good condition.

The mains plug shall only be inserted in a socket outlet

provided with a protective earth contact. The protective

action must not be negated by the use of an extension

cord without a protective conductor.

The opening of covers or removal of parts is likely to

expose live parts.

This apparatus must be disconnected from all voltage

sources before it is opened for adjustment, replacement,

maintenance or repair.

Make sure that only fuses of the required rated current

andofthespeciedtypeareusedforreplacement.The

use of makeshift fuses and the short-circuiting of fuse

holders is prohibited.

2.1 CBA 3G-450 Introduction

The CBA 3G-450 is an amplier capable of supplying 450 W into a 50 ohm load

over the frequency range 800 MHz to 3.1 GHz, during the course of EMC tests

on electrical equipment. The amplier is designed with sufcient gain such that

it may be used with normal output levels of signal sources. A safety interlock on

the rear panel is also provided, which will mute the amplier when grounded.

The unit is powered from a switched mode power supply for high efciency,

high power factor and wide voltage range operation. The unit is air cooled with

integral fans, and is protected against faulty cooling by excess temperature

sensing.

A front panel indicator is provided to indicate over-temperature. The amplier is

designed for rugged operation into a variety of loads. The amplier is primarily

intended for use as a power source for EMC susceptibility testing, but is also

applicable to other systems requiring a wide-band linear amplier.

This amplier is designated as ‘professional equipment’ and should not be

operated by untrained staff.

As this product has the capability to generate high levels of RF energy it is not

intended for use in a residential environment.

Potential or theoretical hazards.

2 introduction

CBA 3G-450 User Manual

Threat Precaution

Exposure of personnel to high RF

elds produced by an antenna con-

nected to the output of the amplier.

Ensure that the antenna is inside a

screened enclosure and t an interlock

to the entry door to prevent access

while the amplier is operating.

RF burns caused by contact with the

antenna connected to the output of

the amplier.

Ensure that the antenna is inside a

screened enclosure and t an interlock

to the entry door to prevent access

while the amplier is operating.

Amplier self oscillation caused by

feedback from un-terminated con-

nectors.

This is an unlikely but theoretical

possibility. Always ensure that the

amplier input is terminated either

by the system signal generator or by

a suitable RF load/attenuator before

switching the amplier on.

Arcing due to high RF voltages present

at the output connector.

Always ensure that the output of the

amplier is terminated either by the

system antenna or a suitable high

power RF load or attenuator.

3 unpAckinG And instAllAtion

3.1 Unpacking

The CBA 3G-450 should contain the following items housed in a 19 inch

34 U rack:

Check that the equipment is complete as in the packing list above. If any signs

of damage are found inform Teseq and do not install or use the instrument. If

the shipping carton has been damaged, retain the shipping carton and packing

material for the inspection by the carrier.

3.2 Installation

This instrument must be earthed.

Amplier module 4

Amplier input/output module 1

Amplier power unit 1

Plus the following documentation:

CBA 3G-450 operating manual (this document) 1

Certicate of calibration 1

CBA 3G-450 User Manual

If supplied with 3-phase mains in star connection, a neutral line must

be supplied.

InDeltaconguration,noneutralisrequired.

This equipment is intended for rack mounting, using suitable tray and runners

etc. The individual modules must not be mounted only by the front panels.

Typically, the amplier will be supplied ready assembled in a cabinet. However,

if supplied in separate units for shipping convenience, the assembly procedure

is as below.

Arrangement of modules in cabinet.

This amplier is supplied with a 34 U instrument rack ready for the insertion

of the modules.

The modules should be arranged with the power unit at the bottom, then two

amplier units, then the amplier input/output unit, then two further amplier

units. The amplier units are distinguished only by the length of DC supply

cable, and so should be ordered from bottom to top such that the unit with

the shortest supply cable is at the bottom, and the unit with the longest supply

cable is at the top.

Cable connection

Connect the centre unit supply cable from the power unit to the centre unit.

Connect each of the amplier modules to the power unit using the connectors

and cables supplied. Connect the SMA to SMA RF cables from each of the

outputs on the centre unit, to the connectors on each of the amplier units, and

similarly for the N to N cables The order of connection is arbitrary. Connect the

BNC to BNC cables from the centre unit to each of the amplier units.

Mains input is via a pre-wired IEC 60309 3 phase plug.

Star congured supplied with a 5 pin plug.

Delta congured supplied with a 4 pin plug

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