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: sales@bird-technologies.com
Technical Support email: atechapp@bird-technologies.com
866-695-4569 toll free
©
Copyright 2005
Instruction Book Part Number 920-4421 Rev Q
by Bird Electronic Corporation
Thruline® is a Registered Trademark
of Bird Electronic Corporation
This page intentionally left blankiSafety Precautions
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
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
ii
AC or 230 VAC). Disconnect the
replacing the batt
eries. Failure
re electrical shock or death.
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
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.
iv
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.
v
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.
vi
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
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
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
29
ix
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
49
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
x
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
1
Bird 4421 RF Power Meter
Figure 1
Bird 4421 Meter
Outline Drawing
(108 mm)
6
MODEL 4 421 RF POW ER METE R
RFLFWD MIN MAX dBm LIGHT ON / OFF
1 2
4
7
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
5
SIDE
ON
I
O OFF
POWER
SENSOR
RANGE
AUTO
UP
DOWN
1. Operating Push Buttons
2. LCD
3. ON/OFF Push Button
4. Handle
3
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
8
9
10
Power Sensors
4020 Series
13
12
11
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.
2
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)
3
Bird 4421 RF Power Meter
Figure 4
Power Sensor
Outline Drawing
4028C Series only
4
Introduction
Frequency and Power Ranges
4020 Series
Model Frequency Range RF Power Range
4027A Series
4027F Series
5
Bird 4421 RF Power Meter
4028 Series
6
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-
7
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
8
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.
9
Bird 4421 RF Power Meter
10
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
UP
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.
11
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