Bird Electronics 4421 Instruction Book

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Page 1

INSTRUCTION BOOK

THRULINE® RF POWER METER MODEL 4421

AND

THRULINE® DIRECTIONAL RF POWER SENSORS

4020 SERIES, 4027A SERIES,

4027F SERIES, AND 4028 SERIES

Bird® Electronic Corporation 30303 Aurora Road Cleveland (Solon), Ohio 44139

Sales & Technical Support: 440-248-1200

Sales email: [email protected] Technical Support email: [email protected]

866-695-4569 toll free

Instruction Book Part Number 920-4421 Rev Q

by Bird Electronic Corporation

Thruline® is a Registered Trademark

of Bird Electronic Corporation

Page 2

This page intentionally left blankiSafety Precautions

Page 3

The following are general safety precautions that are not necessarily related to any specific part or procedure and do not necessarily appear elsewhere in this publication. These precautions must be thoroughly understood and apply to all phases of operation and maintenance.

Keep Away From Live Circuits

Operating personnel must at all times observe normal safety regulations. Do not replace components or make adjustments inside the equipment with high voltage turned on. To avoid casualties, always remove power.

Shock Hazard

Do not attempt to remove the RF transmission line while RF power is present.

Do Not Service or Adjust Alone

Under no circumstances should any person reach into an enclosure for the purpose of service or adjustment of equipment except in the presence of someone who is capable of rendering aid.

Safety Earth Ground

An uninterruptible earth safety ground must be supplied from the main power source to test instruments. Grounding one conductor of a two conductor power cable is not sufficient can occur if this grounding is not properly supplied.

Chemical Hazard

Dry cleaning solvents for cleaning parts may be potentially dangerous. Avoid inhalation of fumes or prolonged contact with skin.

Resuscitation

Personnel working with or near high voltages should be familiar with modern methods of resuscitation.

protection. Serious injury or death

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Bird 4421 RF Power Meter

Safety Symbols

Warning notes call attention to a procedure which, if not correctly

Caution notes call attention to a procedure which, if not correctly

performed, could result in damage to the instrument.

The caution symbol appears on the equipment indicating there is important information in the instruction manual regarding that particular area.

NOTE: Calls attention to supplemental information.

Warning Statements

WARNING

performed, could result in personal injury.

CAUTION

The following safety operating and maintenance personnel an

warnings appear in the text

d are repeated here for emphasis.

where there is danger to

WARNING

Never attempt to connect or disconnect RF equipment from the

transmission line while RF power is being applied.

Leaking RF energy is a potential health hazard.

WARNING

Heavy load. Do not attempt to lift unaided.

WARNING

To avoid personal injury, disconnect th

performing any maintenance, including fuse replacement or changing the

line voltage setting.

e power cord from the ac line before

WARNING

Exposed ac line voltage (115 V

power cord from the ac line before

to comply may result in seve

AC or 230 VAC). Disconnect the

replacing the batt

eries. Failure

re electrical shock or death.

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WARNING

To avoid personal injury, disconnect th

performing any maintenance, including fuse replacement or changing the

line voltage setting.

CAUTION

During remote operation, pe

service request line. Failure

could result in

e power cord from the ac line before

riodically monitor the bus to detect a service request

equipment damage.

Caution Statements

The following equipment cautions appear in the text whenever the equipment is in danger of damage and are repeated here for emphasis.

CAUTION

The interface module contains electrostatic discharge (ESD)

sensitive components. Failure to observe ESD precautions can

cause permanent damage.

CAUTION

ill invalidate calibration data,

and may reduce the maximum power rating of the unit.

CAUTION

The Bird 4421 must be powered off when connecting or

disconnecting the power sensor from the power meter.

CAUTION

Do not use the power sensor with a load VSWR greater then 2:1.

Damage to the power meter, power sensor, or the

RF power source could occur.

CAUTION

During remote operation, periodically monitor the bus

service request line. Failure to detect a service request

could result in equipment damage.

iii

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Bird 4421 RF Power Meter

Due to the complexity of the Bird Power Sensor, field repairs

beyond general maintenance should not be attempted.

Removal or disturbance of the power sensor cover can result in

Failure to install the properly rated fuse may result in equipment

Safety Statements

USAGE ANY USE OF THIS INSTRUMENT IN A MANNER NOT

SPECIFIED BY THE MANUFACTURER MAY IMPAIR THE

USO

CAUTION

cancellation of lifetime warranty.

CAUTION

damage or nuisance failures.

EL USO DE ESTE INSTRUMENTO DE MANERA NO ESPECIFICADA POR EL FABRICANTE, PUEDE ANULAR LA PROTECCIÓN DE SEGURIDAD DEL INSTRUMENTO.

Page 7

BENUTZUNG WIRD DAS GERÄT AUF ANDERE WEISE VERWENDET ALS VOM

HERSTELLER BESCHRIEBEN, KANN DIE GERÄTESICHERHEIT BEEINTRÄCHTIGT WERDEN.

UTILISATION TOUTE UTILISATION DE CET

EXPLICITEMENT PRÉVUE PAR LE FABRICANT PEUT ENDOMMAGER LE DISPOSITIF DE PROTECTION DE

IMPRIEGO QUALORA QUESTO STRUMENTO VENISSE UTILIZZATO IN MODO

DIVERSO DA COME SPECIFICATO DAL PRODUTTORE LA PROZIONE DI SICUREZZA POTREBBE VENIRNE COMPROMESSA.

SERVICE SERVICING INSTRUCTIONS ARE FOR USE BY SERVICE-

TRAINED PERSONNEL ONLY. TO AVOID DANGEROUS ELECTRIC SHOCK, DO NOT PERFORM ANY SERVICING UNLESS QUALIFIED TO DO SO.

SERVICIO LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO

DEL PERSONAL DE SERVICIO CAPACITADO. PARA EVITAR EL PELIGRO DE DESCARGAS ELÉCTRICAS, NO REALICE NINGÚN SERVICIO A MENOS QUE ESTÉ CAPACITADO PARA HACERIO.

WARTUNG ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR

FÜR GESCHULTES FACHPERSONAL. ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE SCHOCKS, SID

WARTUNGSARBEITEN AUSSCHLIEßLICH VON QUALIFIZIERTEM SERVICEPERSONAL DURCHZUFÜHREN.

ENTRENTIEN

RÉSERVÉ AU PERSONNEL FORMÉ AUX OPÉRATIONS

ÉTÉ QUALIFIÉ POUR CE FAIRE. ASSISTENZA TECNICA

ESCLUSIVAMENTE PER IL PERSONALE OPPORTUNAMENTE ADDESTRATO. PER EVITARE PERICOLOSE SCOSSE ELETTRICHE NON EFFETTUARRE ALCUNA RIPARAZIONE A MENO CHE QUALIFICATI A FARLA.

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Bird 4421 RF Power Meter

UNITS ARE EQUIPPED WITH

RECHAREABLE BATTERIES. THESE ARE TO BE REPLACED BY AUTHORIZED SERVICE PERSONNEL ONLY!!!

LAS UNIDADES VIENEN EQUIPADAS CON BATERIAS RECARGABLES. ¡¡¡Y SOLAMENTE EL PERSONAL DE SERVICIO AUTORIZADO PUEDE REEMPLAZARLAS!!!

GERÄTE SIND MIT WIEDER AUFLADBAREN BATTERIEN BESTÜCKT. BATTERIEN SIND NUR VON QUALIFIZIERTEM SERICE PERSONAL AUSZUWECHSELN!!!

CES DISPOSITIFS SONT ÉQUIPÉS DE BATTERIES

AUTORISÉ EST HABILITÉ À LES REMPLACER ! LE UNITÀ SONO DOTATE DI BATTERIE RICARICABILI, CHE

DEVONO DA COME SPECIFICATO DAL PRODUTTORE LA PROTEZIONE DI SICUREZZA POTREBBE VENIRNE COMPROMESSA.

BE SURE THE 115/230V AC VOLTAGE SELECTOR IS SET TO THE PROPER LINE VOLTAGE, AND THE CORRECT AC LINE FUSE IS INSTALLED BEFORE AC POWER IS APPLIED.

BIEN RÉGLÉ POUR LA TENSION DU RÉSEAU ET QUE LE FUSIBLE DE LIGNE C.A. CORRECT EST EN PLACE AVANT DE METTRE SOUS TENSION C.A.

CERCIORESE QUE EL SELECTOR DE VOLTAJ E DE 115/230V CA ESTE COLOCADO A LA LINEA DE VOLTAJE APROPIADA Y QUE EL FUSIBLE ESTE INSTALADO A LA LINEA CA ANTES DE APLICAR LA CORRIENTE ALTERNA.

VOR EINSCHALTEN DER WECHSELSTROMZUFUHR SICHERSTELLEN, DASS DER 115/230V WECHSELSPANNUNGSSELEKTOR AUF DIE VORSCHRIFTSMÄSSIGE LEITUNGSSPANNUNG EINGESTELLT UND DIE RICHTIGE WECHSELSTROM-HAUPTSICHERUNG EINGESETZT IST.

PRIMA DI EROGARE CORRENTE, ASSICURARSI CHE IL SELETTORE DI VOLTAGGIO 115/230 V.C.A. SIA REGOLATO CORRETTAMENTE E CHE IL FUSIBLE ADATTO ALLA LINEA DI ALIMENTAZIONE C.A. SIA INSTALLATO.

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About This Manual

This manual covers the Bird 4421 RF Power Meter and the sensors it works with. Specific models include:

Power Meter

4020 Series

Sensors

4027A Series

Sensors

4027F Series

Sensors

4028A Series

Sensors

4028B Series

Sensors

4028C Series

Sensors

4421

4021 4022 4024 4025

4027A250K 4027A400K 4027A800K 4027A2M

4027A4M 4027A10M 4027A12M 4027A25M

4027A35M 4027A60M 4027A100M 4027A150M

4027F2M 4027F10M 4027F60M

4028A250K 4028A400K 4028A2M 4028A3M

4028A4M 4028A10M 4028A25M

4028B10M

4028C10M

This instruction book is arranged so that essential safety information appears in the front of the book. Reading the Safety Precautions before operating the equipment is strongly advised.

The remainder of this manual is divided into Chapters and Sections. At the start of each chapter, a general overview describes its contents.

Operation

Installation to get an overview of eq

uipment capabilities and installation. Experienced operators can refer to All instructions necessary to manually operate the equipment appear in this chapter. If the power meter is equipped with a IEEE-488 GPIB

488 GPIB Interface. For the RS-232

Maintenance

You should be familiar with preventative maintenance found in Chapter

will aid in isolating and repairing the failure. A list of replacement parts with part numbers is also in this chapter.

vii

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Bird 4421 RF Power Meter

Changes To This Manual

We have made every effort to ensure this manual is accurate. If you should discover any errors, or if you have suggestions for improving this manual, please send your comments to our factory. This manual may be periodically updated. When inquiring about updates to this manual refer to the part number and revision level on the title page.

viii

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Table of Contents

Intr oduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Items Supplied . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Optional Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Power Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4020 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4027A Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4027F Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4028 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Frequency and Power Ranges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4020 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4027A Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4027F Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4028 Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Insta llation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Sensor Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

RF Line Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Panel Mounting the 4421 Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Handle Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

115/230V AC Input Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

AC Line Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Operating Inst ructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Push Button Functions . . . . . . . . . . . . . . . . . . .

Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Audible Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

IEEE -488 GPIB Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Cable Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Interface Capabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Dip Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Talker-Only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

General Bus Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Device Dependent Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

RS-232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Cable Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

DIP Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Auto Baud . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Talker-Only Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Command Syntax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

General Bus Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Page 12

Device Dependent Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Ma intenan ce . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Functional Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43

Push Button Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Front Panel (Cal Cart only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Cord Reel (Cal Cart only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Replacing Fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Replacing Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Power Sensor (Cal Cart only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Casters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Storage and Shipment (Cal Cart only)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Specifications, Cal Cart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Specifications, 4421 Power Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Specifications, Power Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Specifications, RS-232 Interface . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

Specifications, IEEE-488 GPIB Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Page 13

Power Meter

Chapter 1

Introduction

The Bird 4421 RF Power Meter is one surement system. An RF power sensor su The system can be contro through an RS-232 connection or a GPIB-488 connection.

Items Supplied

Bird 4421 RF Power Meter AC Power Cord Sensor Cable Instruction Manual

Optional Accessories

Panel Mount Kit (P/N 4421-250):

standard 19" panel for rack mount applications.

Null Modem Kit (P/N 4380-250):

the 4421 to be remotely controlled by arrangements. Requires an RS-232 interface module.

component of a complete RF power mea-

ch as a Bird 4021 is also required.

lled with the front panel

Allows the Bird 4421 to be installed in a

Contains the hardware

controllers with different wiring

buttons, or remotely

necessary to allow

Page 14

Bird 4421 RF Power Meter

Figure 1 Bird 4421 Meter Outline Drawing

(108 mm)

MODEL 4 421 RF POW ER METE R

RFLFWD MIN MAX dBm LIGHT ON / OFF

1 2

AC SUPPLY

REMOVE AC POWER BEFORE ATTEMPTING TO SERVICE THIS

INSTRUMENT

VOLTAGE 115/230 V FUSE RATING T630mA/T315mA FREQUENCY 50/60 Hz

MAXIMUM POWER 60W

SWR

FRONT

SIDE

O OFF

POWER SENSOR

RANGE

AUTO

DOWN

1. Operating Push Buttons

2. LCD

3. ON/OFF Push Button

4. Handle

5. Central Button

6. Fuse Access Door

7. AC Line Module

8. Master ON/OFF Switch

9. GPIB connector

10. GPIB DIP switches

11. RS-232 connector

12. RS-232 DIP switches

13. Power Sensor Socket

Power Sensors

4020 Series

REAR

Power sensors are available with a variet able Connectors", page 59 for a complete dependent on the connectors used at cali connectors.

CAUTION

reduce the maximum powe

Bird 4020 Series Power Sensors are designed for lab or field use and are accurate to within ±3%(1

) of reading.

y of connectors; see Chapter 6 "Availlist. Since the accu

racy is critically

bration, do not remove or change the

r rating of the unit.

Page 15

Introduction

4027A Series

4027F Series

Figure 2

Power Sensor

Outline Drawing,

4020, 4027A, 4027F,

and 4028A Series

Bird 4027A Series Power Sensors are de

signed for use in

semiconductor processing and calibration applications. Stringent calibration provides long-term unit-to-unit repeatability, allowing cons applied to the etch process over many to ±1%(1

) at specified calibration frequencies and power levels.

Bird 4027F Series Power Sensors are si

istent amounts of RF energy to be

etch cycles. 4027A Sensors are accurate

milar to the 4027A series. However, additional filtering allows the 4027F to ignore harmonics of the signal being measured. The 4027F is also less sensit 4027F Sensors are accurate to ±1%(2

ive to AM components of the signal.

) at specified calibration frequencies

and power levels.

(95 mm)

DIRECTIONAL POWER SENSOR MODEL 4022

0.3 - 1000 WATTS 25 - 1000 MHz

(19 mm)

(64 mm)

(83 mm)

(35 mm)

SENSOR PLUG

SOCKET

-CAUTION-

SOURCE LOAD

4028 Series

Figure 3

Power Sensor

Outline Drawing

4028B Series only

Bird 4028 Series Power Sensors are hi

gh power sensors otherwise similar to

±2% at specified calibration frequencies and power levels.

3.75"

(96 mm)

SOURCE LOAD

6.75"

(

172 mm

)

SENSOR PLUG

SOCKET

3.5"

(89 mm)

4.75"

(121 mm)

Page 16

Bird 4421 RF Power Meter

Figure 4

Power Sensor

Outline Drawing

4028C Series only

Page 17

Introduction

Frequency and Power Ranges

4020 Series

Model Frequency Range RF Power Range

4027A Series

4027F Series

Page 18

Bird 4421 RF Power Meter

4028 Series

Page 19

Chapter 2

This chapter provides information about preparing the Bird 4421 for use.

Sensor Connection

Installation

CAUTION

The Bird 4421 must be powered off when connecting or disconnecting the

1. Turn OFF the ON/OFF rocker

2. Align the latch on the ca

3. Insert the cable until it clicks into place.

4. Connect the other end of the

RF Line Connection

Do not use the power sensor with a load VSWR greater then 2:1. Damage to

reduce the maximum powe

CAUTION

power sensor from the power meter.

ble with the notch of the

sensor cable to the sensor.

WARNING

Never attempt to connect or disc

transmission line while RF power is being applied.

Leaking RF energy is a potential health hazard.

CAUTION

the power meter, power sensor, or the

RF power source could occur.

r rating of the unit.

onnect RF equipment from the

panel.

tions will cause measurement errors.

ad or antenna. Reversing these connec-

Page 20

Bird 4421 RF Power Meter

Panel Mounting the 4421 Power Meter

You can install the 4421 Power Meter in an equipment rack if you have the optional panel mount kit (refer to Op mount kit includes comple overall dimensions and mounting points panel mount kit.

te installation instruct

tional Accessories, page 1). The panel

ions. Figure 5 shows the

for a 4421 Power Meter installed in a

Note:

The power supply interrupt switch located on the rear panel. When you in need to provide a means to interrupt the to the user (such as a swit

ch mounted in the panel).

Figure 5 Panel Mounting Dimensions

POWER

SENSOR

for the 4421 Power Meter is

stall a unit in a panel mount kit, you

power supply that is

RF POWER METER

4421

dBm

MAX LIGHT

SWRMIN

RFL

FWD

easily accessible

FUSE

AC SUPPLY

I ON

O OFF

W A R N I N G

REMOVE AC POWER BEFORE ATTEMPTING

TO SERVICE THIS INSTRUMENT.

VOLTAGE

FUSE

100 - 132 VAC

T .250A, 250V

178 - 264 VAC

T .125A, 250V

AT 47.5 - 66 Hz

MAXIMUM POWER 15W

POWER SENSOR

Page 21

Installation

Handle Operation

The handle on the Bird 4421 can be se Figure 6). To adjust the handle, press Releasing the buttons will lock the handle into position.

Figure 6

Handle Positions

115/230V AC Input Power

The internal power supply user setting to select the input volt cally senses the input voltage. However, the correct power cord plug and fuses using (refer to Replacing Fuses, page 46).

t to four different positions (see the center buttons on both sides.

can operate at 115 VAC or 230 VAC. There is no

age because the power supply automati-

you must make sure that you have

installed for the line voltage you are

AC Line Connectors

To make the ac line cord compatible wi the appropriate connector

th non-U.S. voltages, users must install

on the power cord.

Page 22

Bird 4421 RF Power Meter

Page 23

Chapter 3

This chapter describes operator controls and indicators on the Bird 4421 RF Power Meter. For remote operation using the instructions in Chapter 4 or Chapter 5 respectively.

Push Button Functions

Figure 7

Push Buttons

Push Button Description

MODEL 4421 RF POWER METER

FWD

FWD RFL

AUTO

SWR

LO BAT REMOTE

LISTEN TALK LOCAL LOC KOUT

SWR

RFLFWD MIN MAX dBm LIGHT ON / OFF

MW nW KW µW W mW dBm

Operating Instructions

a GPIB or RS-232 controller, refer to

RANGE

AUTO

DOWN

FWD, RFL

SWR

MIN, MAX

dBm

LIGHT

AUTO

UP, DOWN

ON/OFF

Press to measure forward or reflected RF power. F WD or RFL indicator and current unit of measure turn on.

Press to measure standing wave ra tio. SWR indicator turns on. Value displayed will be between 1.0 and 199.9

Used after pressing FWD, RFL, SWR, or dBm. Displays the minimum (maximum) measured value of the previous function as long as MIN (MAX) is held down.

Used after pressing FWD or RFL. dBm indicator turns on. Power is displayed in dBm units.

Used after pressing SWR. Return loss is displayed.

on, the light automatically shuts off after 30 minutes. Press to automatically set the scale. AUTO turns on. Press to select the next higher (lower) scale. If the scale is

too high for the power sensor, an error will be displayed. Used while AUTO indicator is on. Stops automatic

scaling. AUTO indicator turns off. Press to turn the power meter on or off. This switch will

not work if the master power switch on the rear panel is OFF. The display flashes for about 30 seconds when the unit is first turned on.

Page 24

Bird 4421 RF Power Meter

Error Codes

Figure 8

Error Codes

Figure 9

Function Limits

Audible Warning

The Bird 4421 displays error codes wh selected range (underrange) or above displays the error codes and Figu

Symbol Explanation

Value greater than overrange limit of function Value less than underrange limit of function

Function Limit Error

FWD, RFL Power > 199.9% of full scale or 120%

of top range

FWD dBm, RFL dBm

SWR FWD < 20% of low range

Return Loss FWD < 20% of low range

Power > 120% of full scale Power < 3 % of low ra nge

RFL < 20% of low range Return Loss > 40 dB

en the RF power is either below the

the selected range

re 9 lists the function limits.

(overrange). Figure 8

Overrange

Overrange Underrange

Underrange Overrange

Underrange Underrange Underrange

If the RF power level exceeds 120% capability, the power meter

will sound a warning buzzer.

Page 25

Description

Chapter 4

IEEE-488 GPIB Interface

This chapter discusses setup of the IEEE-488 interface feature and describes the IEEE commands that apply to the Bird 4421. Operators should understand IEEE standard 488-1978 and have basic computer programming skills before attempting to write any programs.

CAUTION

During remote operation, pe

service request line. Failure

riodically monitor the bus to detect a service request

could result in equipment damage.

The Bird 4421 IEEE-488 (GPIB) interfac that sets operational conditions and in the display indicates th

Cable Connector

The interface uses a standard IEEE-488 listed in Figure 10.

Figure 10

IEEE-488 Pin

Assignments

e has an eight-posi

terface addresses.

e current bus status.

cable connector. Pin assignments are

Pin Designation Type

1 D101 Data 2 D102 Data 3 D103 Data 4 D104 Data 5 EOI Management 6 DAV Handshake 7 NRFD Handshake 8 NDAC Handshake

9 IFC Management 10 SRQ Management 11 ATN Management 12 SHIELD Ground 13 D105 Data 14 D106 Data 15 D107 Data 16 D108 Data 17 REN Management 18 GROUND Ground 19 GROUND Ground 20 GROUND Ground 21 GROUND Ground 22 GROUND Ground 23 GROUND Ground 24 GROUND, LOGIC Ground

tion DIP switch

The bottom line of

Page 26

Bird 4421 RF Power Meter

Interface Capabilities

The interface capability function codes are listed in Figure 11.

Figure 11 IEEE-488

Interface Module

Capabilities

Code Name Description

SH1

AH1

SR1

RL1 PP0

DC1 Device Clear Can be reset to factory settings.

DT1

C0 E1

Source Handshake

Acceptor Can handshake the bus when it is acting

Talker Can send data over the bus to other

Listener Can receive device-dependent data over

Service Request Can request service from the controller. Remote-Local Can be placed in remote or local mode. Parallel Poll Does not have parallel polling capability.

Device Trigger Can have its readings triggered. Controller Does not have controller capability. Bus Driver Type Has open-collector bus drivers.

Can handshake data or command bytes when the unit is acting as a source.

as the acceptor of data or commands.

devices. This capability exists only a fter the instrument has been addressed to talk, or after a reading in talk-only mode.

the bus. This capability exists only after the unit has been addressed to listen.

Indicators

TE0 LE0

status of the Bird 4421 when used

REMOTE:

through the interface. Measurements, parameters may be changed

LISTEN: TALK:

is always shown when the unit

LOCAL LOCKOUT:

tons are disabled and the power mete trolled.

Extended Talker Does not have extended talker capability. Extended Listener Does not have extended listener

When REMOTE is displayed, the power meter is being controlled

from a remote location.

When LISTEN is displayed, the power meter is receiving data.

When TALK is displayed, the power

When LOCAL LOCKOUT is displayed, the push but-

capability.

splay shows indicato

with the IEEE interface. These are:

units of measure, and certain other

meter is transmitting data. This

rs describing the

ing remotely con-

Page 27

IEEE-488 GPIB Interface

Setup

Dip Switch

Set the interface to ADDR (Addressable) by positioning DIP switch 1 to ON. This makes the 4421 respond

to controller commands.

Figure 12

IEEE Interface Default

DIP Switch Settings

Note:

lever). Examine the DIP switch to determine the ON and OFF positions. Set the primary address using the DIP switches. The primary address is fac-

tory set to 6, but can be set to any va the controller) To set the primary address, sum of the bits turned off equals th below, the address is set to 6 (the off switches have values of 4 and 2).

Note:

devices on the bus. When programming the controller, the address in the program must be the same as the addre device on the bus must have a different primary address.

There are several button styles on DIP switches (slide, rocker,

lue between 1 and 31 (0 is reserved for

e desired primary address. In Figure 12

The primary address is used by the

ss set on the interface module. Each

controller to refer to specific

Talker-Only Mode

The Bird 4421 can be set up for manual operation while automatically sending data to an output device (Talker-Only Mode). To do so, turn DIP switch 1 OFF and cycle the power. TALK will be displayed.

In Talker-Only mode When the measurement is complete, the LISTEN turns on momentarily. A listen-only device on the bus, such as a printer, can read the value. The power me button press.

Command Syntax

The Bird 4421 accepts two types of commands, such as Device Clear (DCL), device. Device-depende

, pressing a button on the me

information is sent to the bus and

ter is then ready to accept another

commands. General bus commands are

that apply to any IEEE interfaced

nt commands are specific to the 4421.

ter triggers a measurement.

Page 28

Bird 4421 RF Power Meter

If an invalid command is se serial poll byte and the offending command is not executed.

A group of device-dependent commands can be sent as a single string as long as like command categories are not re This string sets up the 4421 to send

Note: Note:

As a command string is processed by th stored in a separate location. Two co stored in the same location, so that first one.

General Bus Commands

The general bus commands supported by the IEEE-488 interface feature are listed in Figure 13. The syntax for ex controllers; check the documentation su proper command structure.

Figure 13 IEEE-488

General Bus

Commands

Command Effect on Bird 4421

IDN? REN

GTL LLO

nt to the unit, an error co

no prefixes, read forward dBm, make one

Commands can be ente

Only the last command entered of

Gives product identification Goes into remote mode when next addressed Cancels remote mode, restores local operation Locks out local operation

red in either uppe

e 4421, each category of command is

mmands of the same category will be

the second will overwrite and erase the

ecuting general commands varies among

pplied with your controller for the

ndition is placed in the

r or lower case.

each category will be executed.

entificatio

Function Remarks

IFC

DCL Returns to default conditions

SDC

GET

SPE, SPD

Goes into talker and listener-idle status

Returns to default conditions Triggers reading in T2 and T3 modes Puts the status byte on the bus

(IDN?)

Product identifies itself

Replies command same as U2

Page 29

IEEE-488 GPIB Interface

emote

able (REN)

Function Remarks

Enables remote operation.

The unit must be addressed to

The REMOTE indicator turns on wh

Go To Local (GTL)

Function Remarks

ocalLOckout (LLO)

Function

Returns device to local operation.

Issuing a GTL command whil clear the lockout condition.

The REMOTE indicator turns off. The LISTEN indicator remains on.

Disables local operation of

listen after setting REN true.

en this command is received.

e the device is in Local Lockout mode does not

all devices on the bus.

nterFace

Remarks

Clear (IFC)

Function Remarks

REN must be true to use LLO. LLO is cleared by setting REN false.

Terminates all bus activity and passes

All devices are set to talker LISTEN mode is cancelled, an

and listener idle states.

d its indicator is turned off.

control to the system controller.

Page 30

Bird 4421 RF Power Meter

eviceCLear (DCL)

Function Remarks

Figure 14

IEEE-488 Default

Conditions

electiveDevice

Function

Resets the status of

Does not change the current interface mode. The 4421 returns to the factory default condition listed in Figure 14.

Default Condition Related Command

Forward Carrier Wave Auto Range ON Two Terminators (CR LF) Prefixes YES Trigger One Shot on Talk Address

Send EOI with last byte of message

all devices to an initialized state.

RYY

YT PY

M00

Clear (SDC)

Resets the status of a selected device to an initialized state.

Remarks

roupExecute

Function Remarks

Only the device addre The 4421 returns to the fa

ssed will be cleared.

ctory default condition.

Trigger (GET)

Initiates a measurement for all

The 4421 must be already set to trigger on GET. Used to synchronize measurements of multiple instruments.

devices set

to trigger on GET.

Page 31

IEEE-488 GPIB Interface

erialPollingEnable/

Disable (SPE/SPD)

Function

Remarks

Figure 15

IEEE Status

Byte Description

Enables or disables the

During remote operation, periodically

Failure to detect a service request

The SPE command puts all devices in addressed. The SPD command clears the SRQ bit (bit 6) and ends the polling sequence.

When addressed a device sends its status byte to the controller. A value of 1 for a bit means that the device condition th means that the condition is false.

The 4421 does not use all bits of the stat along with a description and how to reset them.

Bit Name Condition

6 SRQ Set if a service request is generated by the

serial polling sequence.

CAUTION

monitor the bus se

could result in equipment damage.

serial poll mode waiting to be

at bit refers to is true. A value of 0

us byte. Figure 15 lists the bits used,

4421. If an SRQ has been received by the controller and this bit is cleared, other instruments on the bus should be checked to determine where the SRQ occurred.

rvice request line.

Clea red by a serial poll of the 4421.

3 Measurement

Complete

2 Reading

Underflow

1 Reading Overflow Set when the RF power is overrange and a

0 Error Set if an illegal device-dependent command

Set when the power meter has completed a reading.

Clea red by requesting a reading over the bus. Set when the RF power is underrange and a

reading has been completed. Clea red by requesting a reading over the bus.

(IDDC) or illegal device-dependent command option (IDDCO) was received, or if the power meter fails the self test.

Cleared by reading the U1 status word. The U1

on page 25.

Page 32

Bird 4421 RF Power Meter

Device Dependent Commands

The device-dependent commands used by the 4421 Power Meter are listed in Figure 16, organized by category.

Figure 16 IEEE-488

Device Dependent

Command

Summary

Note:

The programming card also ha

s a complete command list.

Category Command Description

Measurement FC

FD RC RD

RL MN MX

Range RYY

R00 to R17

RNN

Terminators YT

YO YN

Prefixes PY

Triggers T0

Serial Polling M00

M01 M02 M04 M08

Status U0

Self-Test J0

EOI Response KY

Writable Store WXXXXXX

Forward carrier wave Forward dBm Reflected carrier wave Reflected dBm Standing wave ratio Return loss Minimum value Maximum value Auto range on Manual ranges Auto range off, stay Two terminators: CR, LF One terminator: CR No terminator Prefix YES Prefix NO Continuous on TALK One shot on TALK Continuous on GET One shot on GET Continuous on measurement command One shot on measurement command Do not generate SRQ Generate SRQ on error Generate SRQ on me Generate SRQ on measurement underrange Generate SRQ on operation complete Send back current machine state Send back error conditions Send back revision levels Run self-test Send EOI on last byte Do not send EOI on last byte Place XXXXXX in RAM

at present range

asurement overrange

Page 33

IEEE-488 GPIB Interface

orward

eflected

Carrier Wave (FC) dBm (FD)

Carrier Wave (RC) dBm (RD)

tanding

eturn

Function Remarks

Wave Ratio (SW)

Loss (RL)

Function Remarks

Selects forward or reflected RF power measurement mode.

Measurement results are returned in Watts or dBm.

Selects SWR or return loss match measurement mode.

Measurement results are returned in VSWR or dB.

MiNimum Value (MN) MaXimum Value (MX)

Function Remarks

Selects minimum or maximum measurement mode.

Another measurement must be select Returns the minimum (or maximum) valu

ed before selecting min or max.

e of the previous measurement type.

Page 34

Bird 4421 RF Power Meter

Range (Rxx)

Function Remarks

Figure 17

Measurement

Ranges

Selects a measurement rang

If the selected range is outside the ra command is ignored.

Command Power Range

RYY RNN

R17 R16 R15 R14 R13 R12 R11 R10 R09 R08 R07 R06 R05 R04 R03 R02 R01 R00

Turn auto range on Turn auto range off. Keep present range

e listed in Figure 17.

nge of the connected power sensor, the

Terminators (Yx)

Function

Remarks

Selects the characters that follow

a carriage return(CR).

Many controllers use the terminator sequ string. Using incorrect term

inators can lock the bus.

the end of a data string. Set x to:

return(CR) and a line feed(LF).

can be terminated by EOI.

ence to recognize the end of an input

Page 35

IEEE-488 GPIB Interface

Prefixes (Px)

Function

Remarks

Figure 18

Prefix Examples

Turns the prefix mode on or off. Set x to:

Prefixes are sent over the bus with th of the current measurement (see Figure 18 for examples):

type.

e value sent is a norm

Bird model number.

Data String Description

e measurement, and indicate the status

al on-scale reading.

Normal (N) forward carrier wave (FC), prefixes on

Overflowed (O) forward carrier wave (FC), prefixes on

Overflowed forward carrier wave, prefixes off

Underflowed (U) reflected dBm (RD), prefixes on

Page 36

Bird 4421 RF Power Meter

Triggers (Tx)

Function Remarks

Figure 19

Trigger Conditions

Selects the condition which will trigger a reading (see Figure 19).

Failure to trigger device before requ

esting a reading will lock the bus. T1 halts the bus until a reading is available. T0 and T1 do not set the T2, T3, T4, and T5 set a SRQ when Fastest reading rate is 2.4 readings

Command Trigger Condition

T0 T1 T2 T3 T4

measurement complete SRQ.

the measurement is complete.

/second; slowest is 1 reading/sec.

Continuous on ta lk One shot on talk Continuous on GET One shot on GET Continuous on measurement command

(FC,FD, RC, RD, SW, RL, MN, MX) One shot on measurement command (FC,

FD, RC, RD, SW, RL, MN, MX)

SRQ

Mask (Mxx)

Function

Remarks

SRQ Mask Bits

Figure 20

Selectively masks status bits to Set xx to the sum of the binary values

example, M12 would set the SRQ for bo

prevent unwanted service requests.

of the desired SRQ trigger bits. For

th operation complete and underrange

If a status bit is masked (bit set to 0) tion.

Binary Value Bit Number Message

1 0 (LSB) Error (IDDC, IDDCO, self-test fail) 2 1 Measurement overrange 4 2 Measurement underrange 8 3 Operation complete

4 Not Used 5 Not Used 6

7 (MSB)

Not Used

Page 37

IEEE-488 GPIB Interface

Status (Ux)

Function

Remarks

Figure 21

Machine Status

Word Format

Reads a status word and returns the information as a string. Set x to:

After sending the status command, a stat unit is addressed to talk. To ensure th tus word should be requested as soon

Machine Status Word (U0):

The format of the mach

us word is sent the next time the

e correct status is transmitted, the sta-

as possible after the command is sent.

ine status word is

shown in Figure 21. The default values are also shown.

0 C

Header Measurement Function Range Prefix Terminator Trigger SRQ Mask EOI Response

Error Status Word (U1):

ble error messages are shown

R Y Y P Y Y T T 1 M

The format of the error status word and the possi-

in Figure 22. When an e

0 0

rror occurs, an error is

also flagged in the status (serial poll) byte, and a SRQ may be generated (See

vert to their non-error states after

the U1 command is sent.

K Y

TERM

Figure 22

Error Status

Word Format

Header Command Status (shown valid) Command Option Status (shown valid) Self-test results (shown fail)

M V

C 0

F L

TERM

Status Meaning Description

ICM Invalid Command Set when an illegal device-dependent

command (IDDC) such as V2 is

received. (V is illegal)

VCM Valid Command Set when no IDDC is received.

ICO Invalid Command

Option

Set when an illegal device-dependent

command option (IDDCO) such as T6 is

received. (6 is illegal)

VCO Valid Command

Set when no IDDCO is received.

Option

Page 38

Bird 4421 RF Power Meter

PS Self-Test Pass Set when a self-test has been initiated

by the J 0 command and the test result

is acceptable.

FL Self-Test Fail Set when the self-test has failed. (This

is the default condition.)

Figure 23

Revision History

Word Format

Self Test (J0)

Function

Revision History Word (U2):

The format of the revi

shown in Figure 23.

Header Writable stores Software Rev level Hardware Rev level IEEE-488 1978 compliance IEEE-488 Bus address

* YY is replaced with current software revision level. ** ZZ is replaced with current hardware revision level.

Note:

X X X X X X Y Y Z Z 7

If Writable stores parameter ha

responds only with -4420-.

Initiates a hardware and software test.

sion history word is

* **

8 0 6

s not been set, this command

TERM

Remarks

End Or Identify (Kx)

Function

Remarks

Results are stored in the U1 status

before reading the result.

Enables or disables the End or

Disabling EOI can cause some controllers used.

When enabled, EOI is only asserted at

Identify (EOI) signal. Set x to:

to lock unless another terminator is

the end of a multiple byte string.

Page 39

IEEE-488 GPIB Interface

Writable Store (Wxxxxxx)

Function Remarks

Storage for six bytes of ASCII data.

Data stored is lost when the 4421 is turned off. Data is sent back as part of the U2 status word.

Page 40

Bird 4421 RF Power Meter

Page 41

Description

Cable Connector

Chapter 5

This chapter discusses setup of the RS-232 interface feature and describes the RS-232 commands that apply to the Bird 4421. Operators should understand EIA Standard RS-232-C and have basic computer programming skills before writing any programs.

The Bird 4421 RS-232 interface feature is an integral part of the I/O hub circuit board inside of the mm21. An eigh operational conditions such as baud rate, parity, and stop bits. The bottom line of the display indica

The interface uses a standard 25-pin RS-232 connector. Pin assignments are listed in Figure 24. If the controller us not attempt to rewire th should be used for rewiring instead.

tes the current bus status.

t-position DIP switch

es a different wiring arrangement, do

RS-232 Interface

is used to set

Figure 24

RS-232 Pin

Assignments

Indicators

Pin Designation Notes

1 Protection Ground Chassis Ground 2 Transmit Data 3 Receive Data 4 Request to Send (Output) Set true after module power up 5 Clear to Send (Input) Set by input device. When true, it

enables the module to transmit. When false, it disables transmission.

6 Data Set Ready (Input) Set internally true by module 7 Signal Ground Return path for data and control signals 8 Receive Signal DET (Input) Set true by module

Data Terminal Ready (Output) Set true after module power up

status of the Bird 4421 when used

TALK:

is always shown when the unit

When TALK is displayed, the power

splay shows indicato

with the RS-232 interface. These are:

meter is transmitting data. This

rs describing the

LISTEN:

When LISTEN is displayed, the power meter is receiving data.

Page 42

Bird 4421 RF Power Meter

Setup

DIP Switch

Figure 25

RS-232 Interface

Default DIP Switch

Settings

Set the DIP switches according to appl the controller. Available settings and fact

Note:

lever). Examine the DIP switch to determine the ON and OFF positions.

There are several button styles on DIP switches (slide, rocker,

ication needs and the requirements of

ory defaults are listed in Figure 25.

21 43 65 87

Note:

tings will not become effective unitl

Switch Function Description

1 Stop Bit ON 1 Stop Bit

If you change switch settings

OFF 2 Stop Bits

Command Mode

ON ENT command needed before sending reading to controller* OFF Trigger automatically sends reading Reading also sent when front panel push button pressed

when the unit is ON, the new set-

you turn power OFF and then back ON.

3 Word Length ON 8 Data Bits*

OFF 7 Data Bits

4,5

6,7,8

* Default factory setting

Parity (4) (5)

ON ON ON OFF OFF ON OFF OFF

Baud Rate (6) (7) (8)

ON ON ON OFF ON ON OFF OF F OFF ON ON OFF ON OFF OFF OFF ON OFF OFF OFF

No Parity* Odd Parity Even Parity Mark Parity

Auto Baud 300 600 1200 2400* 4800 9600

Page 43

RS-232 Interface

Auto Baud

Auto Baud is used to automatically de After setting DIP switches 1 through 5, baud:

1. Set DIP switches 6, 7, and 8 to ON.

2. Connect a controller to the power meter.

3. Turn the power meter on.

4. Send the character U (hexadecimal 55

5. Wait 1 second.

If, after 30 seconds, the will choose a rate based on da

such as parity and stop bits must be manually selected.

Talker-Only Mode

The Bird 4421 can be set up for manual operation while automatically sending data to an output device (Talker-Only Mode). To do so, turn DIP switch 2 OFF and cycle the power. TALK will be displayed.

meter.

determined. If not, repeat steps 4 and 5.

module cannot absolutely determine a baud rate, it

ta acquired during the test.

Note:

Auto Baud is the only automatica

termine the correct

follow the steps below to use auto

) from the controller to the power

lays LISTEN, the baud rate has been

lly chosen setting. Other items

transmission rate.

In Talker-Only mode When the measurement is complete, th

Command Syntax

The Bird 4421 accepts two types of commands, such as Initialize (INT), device. Device-depende

If an invalid command is se serial poll byte and the offe

A group of device-dependent commands can be sent as a single string as long as like command categories are not re This string sets up the 4421 to send

As a command string is processed by th stored in a separate location. Two co stored in the same location, so that first one.

Note: Note:

, pressing a button on the me

e information is sent to the bus.

commands. General bus commands are

that apply to any RS-232 interfaced

nt commands are specific to the 4421.

nt to the unit, an error co

nding command is not executed.

no prefixes, read forward dBm, make one

Commands can be ente

Only the last command entered of

red in either uppe

e 4421, each category of command is

mmands of the same category will be

the second will overwrite and erase the

ter triggers a measurement.

ndition is placed in the

r or lower case.

each category will be executed.

Page 44

Bird 4421 RF Power Meter

General Bus Commands

Figure 26

RS-232

General Bus

Commands

iTialize (INT)

Function Remarks

ENT

er (ENT)

The general bus commands listed in Figure 26.

Command Effect on Bird 4421

INT

ENT

TRG

B1 to B7

XO/XF

Resets the Bird 4421 and return

If INT is linked with from that command by a space.

any other command within a st

supported by the RS-232 interface module are

Returns to default conditions Sends a reading to the controller Triggers reading in T3 mode Selects a baud rate Enables/disables software handshake

s it to the factory defaults.

ring, it must be separated

Function Remarks

iGger (TRG)

Function

Makes the power meter transmit

A measurement must have already been triggered, placing a reading in the output buffer.

To send a reading whenever a measurement is triggered, set DIP switch 2 to OFF. The ENT command will not need to be sent.

Initiates a measurement if the powe

a reading to the controller.

r meter is in trigger mode (T3).

Page 45

RS-232 Interface

Baud Select (Bx)

Function Remarks

Figure 27

Baud Rates

Selects a baud rate

When the meter recognizes a valid Bx changed. (The contro wise sending commands wo

This command overrides

Command Baud Rate

B2 300 B3 600 B4 1200 B5 2400 B6 4800 B7 9600

Xmission Flow Control (XO/XF)

Function

Enables or disables th

listed in Figure 27.

command, its baud ra

ller is assumed to

uld not be possible.)

the DIP switch setting.

e XON/XOFF flow control.

be transmitting at

te is immediately

the new rate; other-

Remarks

XO enables flow control. XF disables flow control.

When data is being sent from the powe trol is enabled, data transmission will be suspended when the XOFF character (hexadecimal 13) is sent by the comp XON (hex 11) is sent by the computer.

When data is being sent from the comput sent to the computer when the input buff computer when the buffer has emptied.

r meter to the computer and flow con-

uter. Transmission will resume when

er to the power meter, XOFF will be

er fills up. XON will be sent to the

Page 46

Bird 4421 RF Power Meter

Device Dependent Commands

The device-dependent commands used by the 4421 Power Meter are listed in Figure 28, organized by category.

Figure 28

RS-232 Device

Dependent

Command

Summary

Category Command Description

Measurement FC Forward carrier wave

FD RC RD

Forward dBm Reflected carrier wave Reflected dBm Standing wave ratio Return loss Minimum value Maximum value

Range RYY Auto range on

R00 to R17

RNN

Manual r anges Auto range off, stay at present

range

Terminators YT Two terminat ors: CR, LF

YO YN

One terminator: CR No terminator

Prefixes PY Prefix YES

Prefix NO

Triggers T0 Continuous on ENT

T1 T3 T5

One shot on ENT One shot on TRG One shot on measurement command

Status U0 Send back current machine state

Send back error conditions Send back revision levels

Self-Test J0 Run self-test

Writable Store WXXXXXX Place XXXXXX in RAM

Page 47

RS-232 Interface

orward

eflected

Carrier Wave (FC) dBm (FD)

Carrier Wave (RC) dBm (RD)

tanding

eturn

Function Remarks

Wave Ratio (SW)

Loss (RL)

Function Remarks

Selects forward or reflected RF power measurement mode.

Measurement results are returned in Watts or dBm.

Selects SWR or return loss match measurement mode.

Measurement results are returned in VSWR or dB.

MiNimum Value (MN) MaXimum Value (MX)

Function Remarks

Selects minimum or maximum measurement mode.

Another measurement must be select Returns the minimum (or maximum) valu

ed before selecting min or max.

e of the previous measurement type.

Page 48

Bird 4421 RF Power Meter

Range (Rxx)

Function Remarks

Figure 29

Measurement

Ranges

Selects a measurement rang

If the selected range is outside the ra command is ignored.

Command Power Range

RYY RNN

R17 R16 R15 R14 R13 R12 R11 R10 R09 R08 R07 R06 R05 R04 R03 R02 R01 R00

Turn auto range on Turn auto range off. Keep present range

e listed in Figure 29.

nge of the connected power sensor, the

Terminators (Yx)

Function

Remarks

Selects the characters that follow

a carriage return(CR).

Many controllers use the terminator sequ string. Using incorrect term

inators can lock the bus.

the end of a data string. Set x to:

return(CR) and a line feed(LF).

ence to recognize the end of an input

Page 49

RS-232 Interface

Prefixes (Px)

Function

Remarks

Figure 30

Prefix Examples

Turns the prefix mode on or off. Set x to:

Prefixes are sent over the bus with th of the current measurement (see Figure 30 for examples):

type.

e value sent is a norm

Bird model number.

Data String Description

e measurement, and indicate the status

al on-scale reading.

Normal (N) forward carrier wave (FC), prefixes on

Overflowed (O) forward carrier wave (FC), prefixes on

Overflowed forward carrier wave, prefixes off

Underflowed (U) reflected dBm (RD), prefixes on

Triggers (Tx)

Function Remarks

Figure 31

Trigger Conditions

Selects the condition which will trigger a reading (see Figure 31).

Failure to trigger device before requ Fastest reading rate is 2.4 readings

Command Trigger Condition

T0 T1 T3 T5

Continuous on ENT One shot on ENT One shot on TRG One shot on measurement command

(FC, FD, RC, RD, SW, RL, MN, MX)

esting a reading will lock the bus.

/second; slowest is 1 reading/sec.

Page 50

Bird 4421 RF Power Meter

Status (Ux)

Function

Remarks

Figure 32

Machine Status

Word Format

Reads a status word and returns the information as a string. Set x to:

After sending the status command, a stat unit is addressed to talk. To ensure th tus word should be requested as soon

Machine Status Word (U0):

The format of the mach

us word is sent the next time the

e correct status is transmitted, the sta-

as possible after the command is sent.

ine status word is

shown in Figure 32. The default values are also shown.

0 C

Header Measurement Function Range Prefix Terminator Trigger XON / XOFF

Note:

This command sets the unit to the

remotely (through RS-232 or GPIB). Ther

R Y Y P Y Y T T 1 X

settings that were last issued

efore, it will over ride any manual

changes selected at the front panel of the unit.

TERM

Figure 33

Error Status

Word Format

Error Status Word (U1):

ble error messages are shown

The format of the error status word and the possi-

in Figure 33. All flags will revert to their non-

error states after the U1 command is sent.

Header Command Status (shown valid) Command Option Status (shown valid) Self-test results (shown fail)

M V

C 0

F L

TERM

Status Meaning Description

ICM Invalid Command Set when an illegal device-dependent

command (IDDC) such as V2 is received. (V is illegal)

VCM Valid Command Set when no IDDC is received.

ICO Invalid Command

Option

Set when an illegal device-dependent command option (IDDCO) such as T6 is received. (6 is illegal)

Page 51

RS-232 Interface

Figure 34

Revision History

Word Format

VCO Valid Command

Set when no IDDCO is received.

Option

PS Self-test Pass Set when a self-test has been initiated

by the J 0 command and the test result is acceptable.

FL Self-test Fail Set when the self-test has failed. (This

is the default condition.)

Revision History Word (U2):

The format of the revi

sion history word is

shown in Figure 34.

Header Writable stores Software Rev level Hardware Rev level Interface standard

* YY is replaced with current software revision level. ** ZZ is replaced with current hardware revision level.

X X X X X X Y Y Z Z

* **

RS-232

TERM

Self Test (J0)

Function Remarks

Initiates a hardware and software test.

Results are stored in the U1 status

Writable Store (Wxxxxxx)

Function Remarks

Storage for six bytes of ASCII data.

Data stored is lost when the 4421 is turned off. Data is sent back as part of the U2 status word.

before reading the result.

Page 52

Bird 4421 RF Power Meter

Page 53

Chapter 6

This chapter describes routine maintenance, along with troubleshooting instructions for the power meter and po for the Bird Cal Cart are al the unit to a qualified service center.

To avoid personal injury, disconnect th

performing any maintenanc

Never attempt to connect or disc

transmission line while RF power is being applied.

Leaking RF energy is a potential health hazard.

The Bird 4421 contains no user-serviceable parts.

so provided. For service beyond this level, return

e, including fuse replac

line voltage setting.

Do not remove its cover.

wer sensor. Disassembly instructions

WARNING

e power cord from the ac line before

WARNING

onnect RF equipment from the

WARNING

Maintenance

ement or changing the

Cleaning

Troubleshooting

The Bird 4421 Power Meter requires only simple, routine maintenance.

Wipe off dust and dirt regularly. Check the connectors and cables for damage. Clean the connector contacts with

Do not use harsh or abrasive

Clean the Bird 4421 Power Meter and its with mild detergent and wa that leaves no residue.

Since the power meter and po is to determine which is malfunctioni meter and perform the functi functioning, refer to the troubleshootin malfunctioning, retu

rn it for service.

ter only. Clean sensors with

wer sensor can only work together, the first step

onal test on page 43. If the power meter is mal-

alcohol or dry cleaning solvent.

CAUTION

detergents for cleaning.

display with a soft

a dry cleaning solvent

ng. Connect the power sensor to the

g table below. If the power sensor is

cloth dampened

Page 54

Bird 4421 RF Power Meter

Due to the complexity of

general maintenance should not be attempted.

Removal or disturbance of

CAUTION

the Bird Power Sensor, field repairs beyond

the power sensor

of lifetime warranty.

cover can result in cancellation

PROBLEM POSSIBLE CAUSE CORRECTION

Power meter has no power

This manual cannot list all If a malfunction is not listed or is not contact a qualified service center.

Note:

check the sensor not covered by the safety the safety cover over, then proceed as normal.

Have the batteries been charged? Recharge the batteries

connected? Is the ON/OFF rocker switch on the

rear panel set to OFF?

connected to the ac line? Blown fuse? Check fuse rating and replace

For power sensors in Cal Carts, following the test procedure will

malfunctions that may occur, or corrective actions.

corrected by the listed

cover. To test th

Connect the power cord

Set the switch to ON

Connect ac power

page 46)

corrective actions,

e other sensor slide

Dash moves across the display

Display blank or not updating

Power meter turns off while on battery power NO: Return meter for service

Push buttons do not respond

Every segment on the display is lit

Is the sensor cable connected to both the power meter and power sensor?

Is the sensor cable defective? Replace sensor cable Have the batteries been charged? NO: Recharge battery

defective?

Connect sensor cable

YES: Return meter for service

Return meter for service.

Return meter for service

Page 55

Maintenance

IEEE-488 Interface does not respond to the interface link

RS-232 Interface does not respond to the interface link. Fails J 0 self-test command.

With the RS-232, the power meter displays

operate as expected.

Functional Test

Are the address in the interface program and the address setting on

Change the program or DIP

switch setting so that the the DIP switches on the interface module the same?

Replace I/O hub PCB then check the status. Does the power meter fail the self test?

Is the IEEE cable defective? Replace IEEE interface cable Are the DIP switches set correctly? Set DIP switches Is the RS-232 cable defective? Replace RS-232 interface cable

Is DIP switch 2 set correctly? For

Is DIP switch 1 set correctly? Set DIP switch 1 as indicated in

Figure 25

This test determines whether the powe

r meter or the sensor is malfunction-

ing.

Figure 35

Test Display,

No Malfunction

1. Turn the power meter off.

The ON/OFF switch on the

OFF and the ac power cable should be connected.

2. Turn ON the ON/O

3. While holding down the FWD and button on the

FF switch on the

SWR push buttons, press the ON/OFF

panel of the power mete

panel of the meter.

r. Immediately release all

three.

The unit tests the display on power up cycling through and activating each segment two times and th

en activating all segments at

once two times.

vision date shou

malfunctioning.

the display. If a dash

is displayed after the po

power sensor is malfunctioning.

Model

Number

Software

Rev. Date

layed instead, th

revision date should scroll across

Model

Number

en the meter is

wer meter data, then the

Software

Rev. Date

panel should be

ld scroll across

Page 56

Bird 4421 RF Power Meter

Push Button Test

This test checks that the push buttons and display are functioning properly. If a push button is malfunction

1. Disconnect the power sensor.

2. Turn the power meter ON.

display.

4. Turn the power meter OFF.

5. Connect the power senson.

6. Turn the power meter ON.

very low number).

should remain the same.

ing, return the power meter.

very low number).

17. Press LIGHT. The back-

18. Press LIGHT. The back-

19. Press

20. Press

21. Turn the power meter OFF.

(up). The power meter should ch

(down). The power meter should ch

light should turn on. light should turn off.

ange ranges each time it is

Page 57

Maintenance

Repair

To avoid personal injury, disconnect th

performing any maintenanc

Front Panel (Cal Cart only)

WARNING

e power cord from the ac line before

e, including fuse replac

line voltage setting.

ement or changing the

If the power meter is mount ac connections, it will be necessary to

1. Remove both screws on the fron and the handle.

2. Pull on the handle set into the ba

When making ac connections, refer to the following wiring diagram.

Figure 36

Cal Cart Wiring

Schematic

REEL

Cord Reel (Cal Cart only)

To replace the cord reel:

ed in a Cal Cart, to access the power sensor or the

GRN/YEL (GND)

BLUE (NEUT)

BROWN (LINE)

remove the front panel of the Cal Cart.

t panel, between the RF connector

se of the front panel to remove it.

TO POWER

GRN/YEL (GND)

BLUE (NEUT)

BROWN (LINE)

METER

TO LOAD BLOWE

(

10 kW ONLY

)

1. Disconnect the cord reel from the terminal strip.

2. Unscrew the ac connector.

3. Unscrew and remove the cord reel.

4. Screw the replacement cord reel into place.

5. Thread the ac connector through th the other end to the term

inal strip (See Figure 36).

e grommet, and connect the wires on

Page 58

Bird 4421 RF Power Meter

Replacing Fuses

WARNING

To avoid personal injury, disconnect th

performing any maintenance,

e power cord from the ac line before

including fuse replacement.

CAUTION

Failure to install the properly rated fuse may result in equipment damage

or nuisance failures.

1. Gently pry the fuse drawer out of th

e ac module. The fuse holder does not

detach from the ac module.

2. Install the replacement fuses then clos is a spare fuse and fuse 2 is the active fuse.

AC Line Voltage Fuse Rating

115 Vac T630 mA, 5x20 mm Time Lag Fuse 230 Vac T315 mA, 5x20 mm Time Lag Fuse

Figure 37

AC Line Fuse

C Module

Fuse

Drawer

Fuse 1

Fuse 2

e and secure the fuse holder. Fuse 1

Page 59

Maintenance

Replacing Batteries

WARNING

Exposed ac line voltage (115 VAC

power cord from the ac line before

or 230 VAC). Disconnect the

replacing the batteries. Failure

to comply may result in severe electrical shock or death.

1. Disconnect the ac power cord

2. Remove the four screws

3. Lift the top cover to access the

from the ac mains supply.

that secure the top cover.

attached ground wire then discon-

nect the ground wire and remove the cover.

4. Unfasten the battery retaining be (Figure 38). Be sure to note the tery tubes before removing them.

5. Remove the batteries from each teries. Be sure to note

the polarity (positive and negative) arrange-

ment of the batteries.

6. Install the battery tubes into the belts. Be sure to position the re

taining belts as they were before

removal and tighten them securely.

7. Connect the ground wi

re to the top cover.

8. Install the top cover and secure earlier.

Figure 38

Batteries

lts then remove the battery tubes

polarity and orientation of the bat-

tube and insert replacement bat-

unit and secure with the retaining

it with the four screws removed

1 Battery retaining belt 2 Battery tube (batteries inside)

Page 60

Bird 4421 RF Power Meter

Power Sensor (Cal Cart only)

To replace a power sensor:

To avoid personal injury, disconnect th

performing any maintenanc

The Bird 4421 must be powered off when connecting or disconnecting the

WARNING

e power cord from the ac line before

e, including fuse replac

line voltage setting.

WARNING

Never attempt to connect or disc

transmission line while RF power is being applied.

Leaking RF energy is a potential health hazard.

power sensor from the power meter.

onnect RF equipment from the

CAUTION

ement or changing the

reduce the maximum powe

Due to the complexity of

general maintenance should not be attempted.

Removal or disturbance of

CAUTION

the Bird Power Sensor, field repairs beyond

the power sensor

of lifetime warranty.

r rating of the unit.

cover can result in cancellation

1. Disconnect the RF line from the Cal Cart.

2. Remove the Cal Cart front panel (see only)", page 45).

3. Disconnect the sensor cable from the power sensor.

4. Disconnect the RF cable fr

5. Remove the screws on the sensor mounting bracket.

6. Remove the sensor from the mounting bracket.

7. Put the new sensor in the bracket and screw it into place.

Note:

Make sure the arrow on the side of the sensor points towards

om the sensor output port.

Chapter 6 "Front Panel (Cal Cart

Cal Cart.

8. Connect the RF cable to the sensor sor cable.

9. Replace the Cal Cart front panel.

Page 61

Maintenance

Load

To remove the load from the cart:

WARNING

Heavy load. Do not attempt to lift unaided.

1. Disconnect all RF cables from the RF connectors on the load.

2. On blower-equipped loads, unplug the blower assembly.

3. Replace the vent plugs with the shipping plugs.

4. Remove the mounting bolts connec

5. Remove the load.

Casters

To replace the casters:

1. Remove the load (See Chapter 6 "Load", page 49).

2. Flip the cart over.

3. Unscrew the defective caster.

4. Screw the new caster into place and replace the load.

Handle

To replace the handle:

1. Unscrew and remove the old handle.

2. Screw the new handle into place.

Storage and Shipment

ting the load to the Cal Cart.

(Cal Cart only)

Cover the unit before storing to keep ou install the shipping plug. Store in a ambient temperature

Before shipping the Bird Cal Cart

Remove the vent plugs and replace them with the shipping plugs. Wrap the vent plugs with padding and tape them to the side of the load for protection.

Note:

out the coolant.

Repack in the original carton or

will remain between

With the shipping plugs installed,

t dust and dirt. It is not necessary to

dry, dust-free environment where the

, take the follow

contact Bird for a transit case.

ing precautions:

it is not necessary to empty

Page 62

Bird 4421 RF Power Meter

Specifications, Cal Cart

To determine the model numbers of th model number breakdown on page viii. Fo

e Cal Cart components, refer to the

r load specifications, refer to the

load manual included.

Note:

models. Refer to the model number breakd

Certain sensors or connectors ma

y be incompatible with some

own on page viii for a list of avail-

able components, or contact Customer Service.

Max. Power

Under normal operating conditions, th MINIMUM of the max. power of the sens

or and the max. power of the load.

The following modifiers apply:

Frequency Derating", page 57. Due to the wide variety of availa

ble connectors, frequency range and maximum power may be reduced. Insertion loss is specified with female N connectors. Choose connectors appropri

ate for the frequency and power of

operation. Derate RF power by 2.5% for every 305m (1,000 ft.) above 1,520m (5,000

ft.).

Bird Cal Cart

mum power is the

Frequency Range Power Range

Connectors

Dimensions

Short Cart Long Cart

Weight, Nominal

Short Cart Long Cart

Temperature Range

Operating Storage

Altitude Humidity Calibration Cycle, Nominal

Sensor dependent, 30 MHz max. Dependent on sensor, sensor connectors, and loa d Customer specified (See Chapter 6 "Ava ilable

Connectors", page 59)

175 lbs. (80 kg) 290 lbs. (114 kg)

0 to +35 °C (32 to +95 °F)

1520 m (5000 ft.) 85% non con densing max 1 year CE Compliant. Refer to Declaration of Conformity for

specific standa rds.

Page 63

Maintenance

Specifications, 4

421 Power Meter

Frequency Range Power Range VSWR Display Return Loss Display Display Accuracy AC Power

Batteries Battery Life

Battery Charger

Display

Optional Interfaces

Fuse Rating

115 Vac 230 Vac

Humidity Altitude Temperature Range

Operating Storage

Dimensions Weight, Nominal

Bird 4421 RF Power Meter

Sensor dependent Sensor dependent

0 to 40 dB max ± 1 on least significant digit 115/230 Vac @ 50/60 Hz; 60 W

8 Nickel Metal Hydride 1.2 v cells, rechargeable Approximately 8 hours continuous usage Built-in ba t t ery charger. Drained batteries require

approximately 28 h ou r s to recharge. LCD, 4½ digit display. Indicates mode, mea surement

units, battery condition , remote status, and signal increase /decrease. Self con t a ined backlight.

IE E E-488 GPIB RS-232

IE C (5 x 20 mm) Time Lag Type T T630 m A

T315 m A CE Compliant. Refer to Declaration of Conformity for

specific standa rds. 95% ma x. (noncondensing) Up to 10,000 feet (3,000 m)

0 to 50 °C (32 to 122 °F)

9.5 lbs. (4.3 kg)

Page 64

Bird 4421 RF Power Meter

Specifications, Power Sensors

CAUTION

reduce the maximum powe

Specifications Common to all Sensors

Impedance, Nominal Max. Allowable Terminating VSWR

Calibration Technique

Calibration Cycle, Nominal

Accuracy, Reflected

Accuracy, VSWR

Sampling Rate, Nominal Operating Power Connectors

4028B10M 4028C10M 4028A Series All other models

Humidity, Max. Altitude, Max. Temperature Range

Operating Storage

Dimensions

4028B10M 4028A Series All other models

Weight, Nominal

4028B10M, 4028C10M 4028A2M, 3M, 4M, 10M, and 25M All other models

r rating of the unit.

50 ohm s

2.00:1 Frequen cy-specific calibra t ion fa ct ors stored in

nonvolatile memory in each sensor. Sensor output corrected for fr equ ency and temperature within specified ranges.

6 months Calculated from FWD accuracy and FWD power

RFL Accuracy FWD Accuracy

Calculated from FWD and RFL power

VSWR 1

2 readin gs/second Su pplied by power meter via sensor cable

Customer specified from QC list, appropria te for frequen cy an d power.

CE Compliant. Refer to Declaration of Conformity for specific standa rds.

95% (n on con densing) 10,000 feet (3,000 m)

0 to 50 °C (32 to 122 °F)

5 lb. 2 oz. (2.33 kg) 3 lb. 5 oz. (1.5 kg)

1 lb. 13 oz. (0.8 kg)

------

+ 1

FWD Power

---------------------------------

Directivity 10/

------

Page 65

Maintenance

RF Power Range

4021, 4022 4024, 4025

Frequency Range

4021 4022 4024 4025

Accuracy, Fwd, Best Case VSWR, Max.

4021, 4024, 4025 4022

Insertion Loss, Max.

4021, 4024, 4025 4022

Bird 4020 Series RF Power Sensors

± 3% (1 )

1.05:1

0.05 dB

Directivity, Min.

4021, 4022 4024

4025

Derate accuracy by 3.0% (1

30 dB

) below 15 °C and above 35 °C

CAUTION

reduce the maximum powe

r rating of the unit.

Page 66

Bird 4421 RF Power Meter

Bird 4027A Series RF Power Sensors

Frequency Range

4027A250K 4027A400K 4027A800K 4027A2M 4027A4M 4027A10M

RF Power Range

4027A12M 4027A25M 4027A35M 4027A60M

Accuracy, Fwd, Best Case Calibration Frequencies, Typical (MHz)

4027A250K 4027A400K 4027A800K 4027A2M 4027A4M 4027A10M

Calibration Power, Typical

4027A12M All other models

VSWR, Max. Insertion Loss, Max. Directivity, Min.

4027A12M All other models

0.25, 0.40

0.40

0.90

1.8, 2.0, 2.17

4.0, 5.0

10.0, 13.56, 15.0

± 1.0% (1 )

700 W

1.7 kW

1.05:1

30 dB 28 dB

4027A12M 4027A25M 4027A35M 4027A60M 4027A100M 4027A150M

4027A100M 4027A150M All other models

4027A12M 4027A25M 4027A35M 4027A60M 4027A100M 4027A150M

10.0, 13.56, 15.0

25.76, 27.12, 28.48

40.68

55.0, 60.0

95.0, 100.0

162.0

Derate accuracy by 1% (1 Derate accuracy by 1% (1

) outside cal. power or cal. frequency ) below 15 °C and above 35 °C

Page 67

Maintenance

Bird 4027F Series RF Power Sensors

Frequency Range

4027F2M 4027F10M 4027F60M

RF Power Range

4027F2M, 4027F10M 4027F60M

Accuracy, Fwd, Best Case Calibration Frequencies, Typical

4027F2M 4027F10M 4027F60M

Calibration Power, Typical Harmonic Rejection, Min.

4027F2M 4027F10M 4027F60M

Low Frequency Rejection, Min.

4027F10M 4027F60M

Max Error Induced by 10% AM

4027F2M, 4027F10M 4027F60M

VSWR, Max. Insertion Loss, Max. Directivity, Min.

± 1.0% (2 )

1.8, 2.0, 2.17 MHz

12.0, 12.5, 13.56, 14.0, 15.0 MHz

57.0, 58.5, 60.0, 61.5, 63.0 MHz

1.7 kW

30 dB @ > 25 MHz 30 dB @ > 114 MHz

30 dB @ < 1 MHz 30 dB @ < 15 MHz

1.05:1

28 dB

* Oth er calibr a tion frequencies availa ble upon request

Uncertainty Budget, 4027F Series

Frequency Error...

Power Linearity...

Temperature

at cal freq ± 0.1% ± 0.1% ± 0.1% not at cal freq ± 0.5% ± 1.5% ± 0.5% at cal power ± 0.1% ± 0.1% ± 0.1% not at cal power ± 1.0% ± 0.5% ± 1.0% within 20 to 30°C ± 0.65% ± 0.6% ± 0.5%

4027F2M 4027F10M 4027F60M

Uncert...

Calibr at ion Uncertainty ± 0.6% ± 0.6% ± 0.6% Resolution

Uncert...

at cal power ± 0.06% ± 0.06% ± 0.06% not at cal power

± 0.34% ± 0.34% ± 0.34%

Other sources of error ± 0.4% ± 0.5% ± 0.6%

Best Ca se RSS Uncertain t y ± 1.0% ± 1.0% ± 1.0%

* All values 2

ted display digits. Actual uncertainty can

be calculated as

± (1 in least significant digit) / Reading For a 3.5-digit display, worst case is at uncertainty is ± 1W out of 300 or 0.34%. For

300W. Least significant digit is one watt,

a 4.5-digit display, least significant digit

is 0.1W, so the uncertainty is 0.034%

Page 68

Bird 4421 RF Power Meter

Bird 4028A and 4028B Series RF Power Sensors

Frequency Range

4028A250K 4028A400K 4028A2M 4028A3M 4028A4M 4028A10M, 4028B10M, 4028C10M 4028A25M

RF Power Range

4028A250K, 4028A400K 4028C10M All other models

Accuracy, Fwd, Best Case Calibration Frequencies, Typical (MHz)

4028A250K 4028A400K 4028A2M 4028A3M 4028A4M 4028A10M, 4028B10M, 4028C10M 4028A25M

Calibration Power, Typical VSWR, Max. Insertion Loss, Max. Directivity, Min.

± 2.0% (2 )

0.25, 0.40

0.40

1.8, 2.0, 2.17

2.5, 3.2, 3.5

3.5, 4.0

10.0, 13.56, 15.0

25.76, 27.12, 28.48

3.5 kW

1.05:1

0.05 dB (with female 7-16 DIN connectors) 28 dB

Derate accuracy by 2% (2 Derate accuracy by 2% (2

Specifications, RS-232 Interface

Logic Levels Modes of Operation

Talk Always

Addressable

Connector RS-232 Interface Type Humidity, Max Altitude, Max Temperature Range

Operating Storage

Dimensions

) outside cal. power or cal. frequency ) below 15 °C and above 35 °C

RS-232 Interface Module

Meets all EIA Standa rd RS-232-C specifications Switch and bus selectable Allows the 4421 to send to the bus keyboard-initiated

measurements only Allows the 4421 to be commanded by an RS-232 interface controller

95% (n on -condensing) 10,000 feet (3,000 m)

0 to 50º C (32 to 122º F)

Page 69

Maintenance

Weight

Specifications, IEEE

Logic Levels Modes of Operation

Connector Standard IEEE-488 bus type Humidity, Max Altitude, Max Temperature Range

Dimensions Weight, Nominal

0.5 lbs (0.23 kg) nominal

-488 GPIB Interface

Meets all IEE E Standar d 488-1978 specifica tions Switch and bus selectable

Talk Only

Addressable

Operating Storage

Allows the 4421 to send to the bu only

Allows the 4422 to be addressed as t alker or listener under the command of an IEEE-488 bus controller

95% (non-con densing) 10,000 feet (3,000 m)

0 to 50º C (32 to 122º F)

0.5 lbs (0.23 kg)

IEEE-488 Interface

s keyboard-initiated measurements

High Frequency Derating

Load Derating Above 65 MHz

5 & 10 kW Loads

10 100 1000

Frequency (MHz)

Page 70

Bird 4421 RF Power Meter

Load Derating Above 65 MHz

1 & 2.5 kW Loads

2.5

2.0

1.5

1.0

0.5

10 100 1000

Frequency (MHz)

Replacement Parts

Description Qty Part Number

Fuse, IE C (5 x 20 mm) Tim e Lag Type T

Cord, AC Power

Plug, 115 Va c 1 Cable, Sensor 1 Grommet Cordreel Casters Handle IE E E-488 Bus Inter face Module 1 Cable, IEEE-488

RS-232 Bus Interface Module 1 Cable, RS-232

Null Modem Kit (RS-232 only) 1 Panel Mount Kit 1 Battery, C size, NiMH 8

115 Vac, T630 mA 230 Vac, T315 mA

115 Vac 230 Vac H a rm on ized

2 m 1 m

10 ft. 5 ft.

5A2257-10 5A2257-7

5-1286 5A2416

5A2626 4421-038

1 1 4 1

4421A372 4421A383 4421A384 4421A385 4421-489-2

5-1317-2 5-1317-1

4421-233-1

5-1662-2 5-1662-1

4380-250 4421-250 5A1230

Page 71

Maintenance

Available Connectors

CAUTION

reduce the maximum powe

Connector Part Number Connector Part Number Connector Part Number

HN (F) LC (F)

Connector P/N Connector P/N Connector P/N

BNC-Female 4240-125 LT-Female 4240-018 Mini UHF-Female 4240-346 BNC-Male 4240-132 LT-Male 4240-012 UHF-Female 4240-050 C-Female 4240-100 N-Female 4240-062 UHF-Male 4240-179

LC-Female 4240-031 SMA-Male 4240-334 TNC-Female 4240-156

4240-268 4240-031

N (F) 7/16 J ack, IEC

Type 169-4

4240-062 4240-344

r rating of the unit.

TRU 6934 (F) TRU 7958 (F)

4240-371 4240-372

LC-Male 4240-025 7/16 Jack, IEC

Type 169-4

Open Term. # 10-32 Nut

4240-080 7/16 Plug, IEC

Type 169-4

Customer Service

If you need to return th for a return authorization. All instrume and to the attention of Bird Service Center.

30303 Aurora Road Cleveland (Solon), Ohio 44139-2794 Phone: (440) 519-2298 Fax: (440) 519-2326 E-mail:

For the location of the sales office neares site at:

4240-344 TNC-Male 4240-160

4240-363

e unit for any reason, contac

nts returned must be shipped prepaid

t you, give us a call or visit our Web

t the Bird Service Center

Page 72

Bird 4421 RF Power Meter

Page 73

Limited Warranty

All products manufa ctured by Seller are warranted to be free from defects in material and workmanship for a period of one (1) year, unless otherwise specified, from date of shipment and to conform to applicable specifications, drawings, bluepr under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted; no allowanc replacement of parts, adjustment or repairs, or any other work, unless such charges are authorized in advance by Seller.

be defective in material or workma nship or not to conform to specifications, drawings, blueprints and/or samples, Seller shall, upon prompt notice thereof, either examine the products where they are located or issue shipping instructions for return to Seller (transportation-charges prepaid by Buyer). In the event any of our products are proved to be other than as warranted, transportation costs (cheapest wa Seller and reimbursement or credit will be made for amounts so expended by Buyer. Every such claim for breach of these warranties sha ll be deemed to be waived by Buyer unless made in writing within ten (10) days from the date of discover y of the defect.

e shall be made for any labor charges of Buyer for

The above warranties shall not extend to any produc any misuse or neglect, damaged by by the performance of repairs or alterations outsid parts thereof furnished by Buyer or acquired from others at Bu specifications. Routine (regularly required) calibration

to other equipment and parts manufactured by others except to the extent of the original

The obligations under the foregoing warran ties are limited to the precise terms thereof. These warranties provide exclusive remedies, expressly in lieu of all other remedies including claims for special or consequential damages. SELLER NEITHER MAKES NOR ASSUMES ANY OTHER WARRANTY WHATSOEVER, WHETHER EXPRESS, STATUTORY, OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS, AND NO PERSON IS AUTHORIZED TO ASSUME FOR SELLER ANY OBLIGATION OR LIABILITY NOT STRICTLY IN ACCORDANCE WITH THE FOREGOING.

accident, rendered defective by reas

Special Lifetime Warranty - Se

Series 4027F, and Series

In addition to its standard warranty, the Bird Electronic Corporation warrants its Series 4020, Series 4027A, Series 4027F, and Series 4028 Thruline® Power Sensor Heads for lifetime to original purchaser. This extended warranty is against burnout. For the warranty to apply, the Sensor Head must be used with the correct Bird Electronic of the Sensor must not be exceeded, the Sensor RF circuit must be properly terminated and the Sensor not subjected to physical abuse.

ts or parts thereof which have been subjected to

on of improper installation or

e of our plant, and shall not apply to any goods or

is not covered under this limited warranty. In re of tubes, transistors,

fuses and batteries, or

ries 4020, Series 4027A,

4028 Power Sensor Head

Corporation Display Unit, the maximum power rating

Bird Electronic Corporation, a t its option, will repair or replace the defective Sensor at its world Headquarters at 30303 Aurora Road, Solon, Ohio 44139.

The customer is responsible to pay transport ation charges to return the defective sensor to Bird.

Page 74

DECLARATION OF CONFORMITY

Manufacturer: Bird Electronic Corporation

30303 Aurora Road Cleveland, Ohio 44139-2794

Product: 4421 Power Meter and 402X

Models: Power Meter: 4421

Directional Power Sensors: 4021 4027A250K 4028A250K 4022 4027A400K 4028A400K 4024 4027A800K 4025 4027A2M 4027F2M 4028A2M

4027A4M 4028A4M 4027A10M 4027F10M 4028A10M 4028B10M 4028C10M 4027A12M 4028A25M 4027A25M 4027A35M 4027A60M 4027F60M 4027A100M 4027A150M

The undersigned hereby declares, on behalf of Bird the above referenced products, to which this de provisions of the following standards.

In accordance with EMC Directive (89/336/EEC)

Directional Power Sensors

4028A3M

Electronic Corporation of Cleveland, Ohio, that

claration relates, are in conformance with the

European Standard EN 61326-1:1997 (Addendums A1 for Electrical Equipment for Measur European Standard EN 55011:1988 - Emissions, Class A European Standard EN 61000-6-2 - Generic Immunity Standard

In accordance with Low Voltage Directive ( 1993

European Standard EN 61010-1:2001 - Safety Re Measurement, Control

The technical documentation supporting compliance Electronic Corporation, 30303 Aurora Road, Cleveland, Ohio 44139.

and Laboratory Use

ement, Control and Laboratory Use

73/23/EEC), 1973 including Amendment (93/68/EEC),

quirements for Electrical Equipment for

with these directives is maintained at Bird

:1998 and A2:2001) - Safety Requirements