Ametek CBA-1G-600B, CBA-1G-070B, CBA-3G-050B, CBA-1G-1200B, CBA-1G-300B Operation Manual

CBA POWER AMPLIFIER

Operation Manual

Manual number H012161

Revision: 3

First edition published 26th July 2017

China

AMETEK Commercial Enterprise
(Shanghai) Co. Ltd

Beijing Branch
Western Section, 2nd Floor
Jing Dong Fang Building (B10)
Chaoyang District
Beijing,
T [phone]

[e-mail]

Japan

AMETEK Co. L

td.

Tokyo office

3rd floor, Shiba NBF Tower,
1-1-30 Shiba-Daimo n, Minat o- ku
Tokyo, 105-0012, Japan
T [phone]

[e-mail]

Shanghai Office:

Part A1, A4, 2nd
No. 526 Fute 3rd Road East
Pilot Free Trade Zone, Shanghai 200131,
China
T [phone]

Nagoya Office

1
Aichi
T [phone]

Guangzhou Office:

Room 1410
33 J
Guangzhou, China
T [phone]

Poland

AMETEK CTS Germany GmbH

Biuro w Polsce
ul. Ogrodowa 31/35
00
T [phone]

[e-mail]

Germany

AMETEK CTS Germany GmbH

Lünener S
59174 Kamen, Deutschland
T [phone]

sales.cts.de@am
[e-mail]

Singapore

AMETEK Singapore Pte.

No. 43 Changi South Avenue 2
#04
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[e-mail]

Great Britain

AMETEK (GB) Ltd. trading as Teseq

5 Ashville Way, Molly Millars Lane
Wokingham
Berkshire RG41 2PL
Great Britain
T [phone]

[e-mail]

Taiwan

AMETEK Taiwan Corp. Ltd.

10F
GongDaoWu Rd.,
Hsinchu City 30072, Taiwan
T +886

[e-mail]

USA

Teseq Inc. / AMETEK

52 Mayfield Avenue
Edison, New Jersey 08837, USA
T [phone]
Toll free: [phone]

[e-mail]
[e-mail]

Any disclosure to third parties, or reproduction by any

means of any part of this manual without the written

consent of Teseq, is prohibited.

For Sales

.

China, 100015

floor, Building No. 1

-12, Yian Plaza

ian She Liu Ma Road

traße 211

-0

etek.com

-329 Kifune Meito-ku Nagoya-shi

-ken, 465-0058, Japan

-893 Warszawa, Polen

Ltd.

-01 Singapore 486164

-5, No. 120, Sec 2,

3 57 5099

CBA Manual: H012161 Rev: 3 2

CTS

Table of Contents

1 INTRODUCTION 5

1.1 About this manual 5

1.2 Amplifier description 5

SAFETY 6

2

2.1 General 6

2.2 Safety symbols and terms 6

2.3 Safety precautions 7

INSTALLATION 9

3

3.1 General 9

3.2 Connecting the line cord 10

3.3 Connecting the chassis ground cable 10

3.4 Connecting the RF cables 10

3.5 Connecting the Safety interlock 10

PROTECTION CIRCUITS 11

4

4.1 Over Heat Protection 11

4.2 Input Protection 11

4.3 Power Supply Faults 11

4.4 Mismatch Protection 11

AMPLIFIER OPERATION 12

5

5.1 Safety interlock Operation 12

5.2 Switching on line supply 12

5.3 Cooling Fan Operation 13

5.4 General 13

5.5 OPRT/STBY 13

5.6 FLT/RST 14

5.7 LOC/RMT 14

5.8 Gain Control 14

5.9 GPIB 15

INDICATORS & FUNCTIONS 15

6

6.1 General 15

6.2 Touch Screen Indication 15

CONNECTIONS 16

7

7.1 General 16

7.2 RF input, N Type connector 16

7.3 RF output N-Type or 7/16 (Model Dependent) 17

7.4 Sample Ports, N-TYPE Female 17

7.5 Line supply input connector 17

7.6 Safety interlock 18

7.7 IEEE-488 Convector 18

7.8 Ethernet 18

7.9 RS232 Connection 19

7.10 USB Connection 19

7.11 Ground post (8-32 thread) 19

CBA Manual: H012161 Rev: 3 3

8 REMOTE CONTROL CONNECTIONS & OPERATIONS. 20

8.1 Connectors 20

8.2 IEEE 488 Operation 20

8.3 RS-232 Operation 20

8.4 Ethernet Connection 21

8.5 USB Connection 21

8.6 Remote Command Set 22

ROUTINE MAINTENANCE 24

9

9.1 General cleaning 24

9.2 RF connectors 24

9.3 Air-filter cleaning. 24

FAULT FINDING 25

10

10.1 General checks 25

10.2 Fault indications 26

WARRANTY 28

11

11.1 Definitions 28

11.2 Scope 28

11.3 Terms and conditions 28

11.4 Transfer of Warranty 29

11.5 Protection of Warranty 29

11.6 Repair form 30

13.1 Fig 1, 3U front Panel & Outline Drawing 31

13.2 Fig 2, 4U Front Panel & Outline Drawing 32

13.3 Fig 3, 6U Front Panel & Outline Drawing 33

13.4 Fig 4, 10U Front Panel Drawing 34

14

DATASHEET SPECIFICATIONS 36

CBA Manual: H012161 Rev: 3 4

iCAUTION! This Operation Manual contains important information for
the user of the amplifier. It details important safety information and
hazards that can be encountered by the user, and recommends
precautions that should be taken to prevent damage to the amplifier or
associated equipment. It is important that this Operation Manual
(including any information in the Appendices) is read before attempting
to install or operate the amplifier.

1 INTRODUCTION

1.1 About this manual

This operation manual contains information that details installation, routine
maintenance and amplifier operation. It does not contain information needed for
servicing or calibration.

1.2 Amplifier description

The TESEQ CBA amplifier series is designed for laboratory use. The form factor
ranges from 3U, 4U & 6U bench top units up to rack mountable 10U amplifiers
consisting of a 7U power amplifier drawer and separate 3U power supply draw.

A CBA amplifier can be remotely controlled via the built in RS232, IEEE 488, USB or
Ethernet amplifier controller. Local control is via a front panel touch screen. This also
shows the amplifier status when controlled remotely.

A comprehensive performance and status indicating system is included. These
circuits monitor:

x Interlock circuit status
x Forward power indication
x Reflected power indication
x High VSWR indication
x RF baseplate temperature
x Ambient temperature
x Power supply DC voltage
x Power supply DC current
x Overall status of the amplifier

Visual indications are given. If a fault is detected, the amplifier automatically reverts
into a latched STANDBY condition. It remains in this condition unti l the fault has been
cleared and the fault latch is reset via the front panel touch screen.

The design of the amplifier is subject to continuous improvement. Consequently, the
amplifier may incorporate minor changes in detail from the information contained in
this manual.

CBA Manual: H012161 Rev: 3 5

2 SAFETY

i

i

When used on the amplifier, warns the user of a non-ionising radiation
hazard. When used in this operation manual, alerts the user to the part of the
manual that deals with a non-ionising radiation hazard.

When used on the amplifier, directs the user to refer to the operation manual.
When used in this operation manual, alerts the user to

iWARNING! and

iCAUTION! statements.

or

Warns personnel to observe correct lifting practices.

Ground terminal. Connect this terminal to a clean ground to improve EMC
immunity. Although it provides an extra measure of safety, this is
protective earth

is the pin on the line

inlet connector.

2.1 General

The amplifier described in this manual is designed to be used only by qualified
personnel. Use of the amplifier in a manner not specified in this manual may impair
the protection provided by the amplifier. Before use, inspect the amplifier for damage
which may impair safety.

There are no user-serviceable parts inside the amplifier, and any warranty is rendered
void if the seals on any covers are broken.

The following safety information is intended to protect all installers and operators, and
to prevent damage to the amplifier. It should be read and understood before installing
and operating the amplifier

2.2 Safety symbols and terms

iCAUTION! statements identify conditions or practices that could result in damage to
the amplifier or other property.

iWARNING! statements identify conditions or practices that could result in personal
injury or loss of life.

Note statements inform the user of important general information.

i

Hints and tips statements inform the user of useful information and operational

short cuts.
The following symbols appear on the amplifier and in this manual:

ground. The protective earth ground

CBA Manual: H012161 Rev: 3 6

not a

i

i

i

i

i

i

2.3 Safety precautions

Observe all the following precautions to ensure personal safety and prevent damage
to the amplifier or equipment connected to it.

iWARNING! Properly dispose of the amplifier.
The RF amplifier modules in this equipment contain Beryllium Oxide, and other

components contain PTFE. The appropriate precautions and regulations must be
observed concerning the disposal of this amplifier and certain internal components.

Do not crush or incinerate.

Note: Beryllium Oxide is a material used in the manufacture of RF devices. Toxic

i

dust is given off when crushed.

Note: PTFE is a material used in the manufacture of certain components within the

amplifier. PTFE gives off toxic gasses when incinerated.
iWARNING! Do not touch the inner conductor of the RF-output connector.

High voltages can occur on the inner conductor of the RF output connector, or on
cables or antennas connected to it. These can cause RF burns if touched.

WARNING! Ground the amplifier.

The amplifier conforms with IEC Safety class 1, meaning that it is provided with a
protective grounding terminal. This is through the line supply cord to the centre pin of
the power inlet connector. To maintain this protection, the line supply cord must
always be connected to the source of line supply via a socket with a grounded contact.
Do this before making connections to the RF-input or RF-output connectors of the
amplifier.

Without the protective ground connection, all parts of the amplifier constitute a
potential shock hazard.

WARNING! Use the correct power cord.

Use only the line supply cord and connector specified for the amplifier. Use only a line
supply cord that is in good condition.

WARNING! Do not remove covers or panels.

To avoid personal injury, do not operate the amplifier without the panels or covers in
place.

WARNING! Do not operate in explosive atmospheres.

The amplifier provides no explosive protection from static discharges or arcing
components. Do not operate the amplifier in an atmosphere of explosive gasses.

CBA Manual: H012161 Rev: 3 7

i

i

i

i

i

i

or

iCAUTION!

Exercise caution when lifting.

iWARNING!

Use the safety interlock facility within danger areas.

i

CAUTION! Avoid static discharges

The RF input and output connections are static-sensitive and should not be subjected
to static discharge.

CAUTION! Use the correct line supply source

It is essential that the amplifier operates from a line supply source that does not apply
voltages and frequencies between the line supply conductors (or between either line
supply conductor and ground) that are outside the range detailed in the specification
sheet.

CAUTION! Do not obstruct the circuit breaker.

Ensure that there are no obstructions that impair the operation of the front panel line­supply circuit breaker(s).

CAUTION! Do not obstruct the airflow through the amplifier.

The cooling airflow is drawn in through the front and exhausted at the rear. If this
airflow is obstructed, overheating of the amplifier may occur.

CAUTION! Do not operate the amplifier outside its specification.

This may cause the amplifier to malfunction or be damaged.

iWARNING! Do not touch the exterior of the amplifier (rack mount version)
when in use.

The top and side panels of the amplifier can get hot during use, especially on high
power models.

CAUTION! Periodically replace the air-intake filters.

Operating the amplifier with the air filters dirty may cause the amplifier to overheat.

The appropriate lifting practices should be observed during transportation, installation,
or removal of the amplifier from its mounting position.

Any area where personnel may come into direct contact with high power RF, or be
exposed to non-ionising radiation, should be designated as a danger area. A barrier
should be established around any such area, with a switch in place when the barrier is
broken. This switch can be linked to the safety interlock BNC connector on the
amplifier, thus disabling the amplifier when the barrier is breached.

It is the responsibility of the operator to ensure that the working environment is safe.

The ‘safety interlock’ feature is provided to assist the purchaser in establishing such a
‘safe’ area.

CBA Manual: H012161 Rev: 3 8

3 INSTALLATION

or

iiCAUTION!

Exercise care when lifting.

iiCAUTION!

Do not support the whole weight of the a

handles

(See Section 12)

i

iCAUTION!

Do not obstruct the airflow through the amplifi er.

iCAUTION!

Even though the ambient air temperature may be within the amplifier’s

specification, the internal temperature may rise above operational limits if it
is operated in direct sunlight.

3.1 General

Amplifier models that are very heavy have a caution label on the top cover.
Appropriate lifting practices should be observed during transportation, installation, or
removal of the amplifier from its mounting posit ion. When mounted in a rack, the
amplifier must not be supported by the front panel fixing holes alone. For easier
installation and removal, we recommend that the amplifier is positioned with its top no
more than 1.4 metres above ground level.

These should only be used for sliding the amplifier in and out on the rack.

i

Note: The amplifier may be lifted using the rear protection handles.

(See Section 12).
The amplifier is designed to be mounted in a 19” fixed rack installation. When mounted

in a rack, use a support tray-slider-assembly, especially for heavy amplifier models.
See the section 12 of this manual for details of amplifier dimensions.

mplifier with the front panel

At least 200mm clearance should be allowed behind the amplifier, so that air flow and
connecting cables are not obstructed. An unobstructed area of at least 200mm should
be allowed in front of the amplifier front panel air-intakes.

The cooling airflow is drawn in through the front and exhausted at the rear. If this
airflow is obstructed, overheating of the amplifier may occur. For correct amplifier
operation, airflow through the unit must be maintained.

CBA Manual: H012161 Rev: 3 9

iiCAUTION!

It is e

ssential that the amplifier operates from a line source that does not
apply voltages and frequencies between the line conductors (or between
either line conductor and ground) that are outside the range detailed in the
specification sheet.

iiCAUTION!

Ensure that the line cord does not interfere with the operation of the rear
panel line-input circuit breaker(s).

To improve EMC immunity, bond the amplifier to a good ground with a
conductor of 4 sq.mm or the equivalent earth braid, a ground post being
provided for this purpose on the rear panel. Although it provides an extra
measure of safety, this is

NOT a protective earth. The protective earth is the

ground pin on the line supply connector(s).

iiCAUTION!

Ensure that the RF source is OFF when making connections.

iiCAUTION!

Ensure any cables and connectors mating with the RF input and RF output
connectors are of

50-ohm impedance, and are designed to handle the power

at the frequencies generated by the amplifier. Although very similar,

75-ohm

connectors must not be used.

iiWARNING!

Use the safety interlock facility within danger areas.

3.2 Connecting the line cord

3.3 Connecting the chassis ground cable

3.4 Connecting the RF cables

Use cable with the lowest loss that is practical. The connectors should not be over­tightened, and any tightening instructions for the connector should be observed.
Ensure that any bends in cables conform to the recommended minimum-bend-radius
of those cables, especially where the cables enter the RF connectors.

3.5 Connecting the Safety interlock

If the amplifier is to be connected to an antenna, personnel may be exposed to non­ionising radiation. In such systems, the safety interlock function should be used.

Connection (via the rear panel) is with a BNC-type connector. We recommend that
shielded cable is used for all interlock connections to ensure EMC immunity.

The current in the safety-interlock circuit is less than 1mA, so cable with a low current
capacity is suitable.

CBA Manual: H012161 Rev: 3 10

If you do not need this function, fit the supplied BNC shorting-link in place. Failure to
do this will result in the amplifier latching in an “Interlock Open” status which switches
the amplifier into standby mode.

4 PROTECTION CIRCUITS

4.1 Over Heat Protection

The CBA RF components produce heat and are air cooled by fans. Should an over
heat condition occur for any reason, the CBA contains heat sensors that will shut
down the system via the amplifier control system. If the inlet and outlet openings are
obstructed, clear the obstruction and allow the amplifier to remain in standby so that
the internal fans can cool the amplifier down. Once the amplifier has reached an
acceptable temperature, depress the ”Fault Reset” soft key on the touchscreen and
the amplifier will operate normally.

4.2 Input Protection

The CBA series is designed to achieve the specified output power level (see
applicable datasheet) for an input level of 0 dBm or less (1.0mW) however, to prevent
overdriving the amplifier, the Input Protection circuit will activate if the input signal
exceeds 10 dBm and will automatically compensate for the increased input signal by
reducing the gain of the preamplifier. Even though the amplifier has an Input
Protection Circuit, overdriving the amplifier is not recommended.

IMPORTANT NOTE:
The CBA Sample Port connectors must be either connected to a 50Ω measurement

system or terminated with the supplied 50Ω load. If the CBA is operated without 50Ω
impedance on the Sample ports, the metering and output protection may be
inaccurate, which may result in damaging the amplifier and voiding the unit’s warranty.

4.3 Power Supply Faults

The Power Supply Fault circuit monitors the voltage and current of system power
supplies and produces a fault indication should any voltage or current level deviate
from normal operating parameters. Each power supply voltage output is monitored
and displayed to indicate the power supplies are operating within design parameters.

4.4 Mismatch Protection

The amplifier is not damaged by using it into a load that has a poor VSWR. While
operating into a load that has poor VSWR, the amplifier may not deliver specified
output power. In extreme cases, the amplifier folds back to protect internal circuitry.

CBA Manual: H012161 Rev: 3 11