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 general safety precautions. Do not replace components inside
equipment with the high voltage supply turned on. To avoid casualties, always remove power.
Shock Hazard
Do not attempt to disconnect an RF transmission line while RF power is present. Radiated RF power is a
potential health hazard.
Resuscitation
Personnel working with or near high voltages should be familiar with modern methods of resuscitation.
Safety Symbols
WARNING
Warning notes call attention to a procedure, which if not performed correctly, could result in personal injury.
CAUTION
Caution notes call attention to a procedure, which if not performed correctly, could result in damage to the equipment.
This symbol appears on the equipment indicating there is important information in
the instruction manual regarding that particular area.
+ Note: Calls attention to supplemental information.
Series 4201 Warning Statements
The following safety warnings appear in the text where there is danger to operating and maintenance
personnel, and are repeated here for emphasis.
WARNING
Leaking RF energy is a potential health hazard. Never attempt to connect or disconnect equipment from the
transmission line while RF power is being applied. Severe burns, electrical shock, or death can occur.
Series 4201 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
Do not drop the instrument or Plug-In elements. The meter may be damaged, or the accuracy of the elements could
be affected.
CAUTION
Do not attempt to check the microammeters with an ohmmeter. Damage to the movement or pointer will result.
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Bird Series 4201 Multi-Channel RF Directional Wattmeter
USAGE
ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY THE
MANUFACTURER MAY IMPAIR THE INSTRUMENT’S SAFETY PROTECTION.
USO
EL USO DE ESTE INSTRUMENTO DE MANERA NO ESPECIFICADA POR EL
FABRICANTE, PUEDE ANULAR LA PROTECCIÓN DE SEGURIDAD DEL INSTRUMENTO.
BENUTZUNG
WIRD DAS GERÄT AUF ANDERE WEISE VERWENDET ALS VOM HERSTELLER
BESCHRIEBEN, KANN DIE GERÄTESICHERHEIT BEEINTRÄCHTIGT WERDEN.
UTILISATION
TOUTE UTILISATION DE CET INSTRUMENT QUI N’EST PAS EXPLICITEMENT
PRÉVUE PAR LE FABRICANTPEUT ENDOMMAGER LE DISPOSITIF DE
PROTECTION DE L’INSTRUMENT.
IMPIEGO
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 ELÈCTRICAS, NO REALICE NINGÙN SERVICIO A MENOS QUE ESTÈ
CAPACITADO PARA HACERIO.
WARTUNG
ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR FÜR
GESCHULTES FACHPERSONAL.
ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE SCHOCKS, SIND WARTUNGSARBEITEN AUSSCHLIEßLICH VON QUALIFIZIERTEM SERVICEPERSONAL DURCHZUFÜHREN.
ENTRENTIEN
L’EMPLOI DES INSTRUCTIONS D’ENTRETIEN DOIT ÊTRE RÉSERVÉ AU PERSONNEL FORMÉ AUX OPÉRATIONS D’ENTRETIEN. POUR PRÉVENIR UN
CHOC ÉLECTRIQUE DANGEREUX, NE PAS EFFECTUER D’ENTRETIEN SI
L’ON N’A PAS ÉTÉ QUALIFIÉ POUR CE FAIRE.
ii
ASSISTENZA TECNICA
LE ISTRUZIONI RELATIVE ALL’ASSISTENZA SONO PREVISTE ESCLUSIVAMENTE PER IL PERSONALE OPPORTUNAMENTE ADDESTRATO. PER EVITARE PERICOLOSE SCOSSE ELETTRICHE NON EFFETTUARRE ALCUNA
RIPARAZIONE A MENO CHE QUALIFICATI A FARLA.
RF VOLTAGE MAY BE PRESENT IN RF ELEMENT SOCKET - KEEP ELEMENT
IN SOCKET DURING OPERATION.
DE LA TENSION H.F. PEAT ÊTRE PRÉSENTE DANS LA PRISE DE L’ÉLÉMENT
H.F. - CONSERVER L’ÉLÉMENT DANS LA PRISE LORS DE L’EMPLOI.
HF-SPANNUNG KANN IN DER HF-ELEMENT-BUCHSE ANSTEHEN - ELEMENT WÄHREND DES BETRIEBS EINGESTÖPSELT LASSEN.
PUEDE HABER VOLTAJE RF EN EL ENCHUFE DEL ELEMENTO RF - MANTENGA EL ELEMENTO EN EL ENCHUFE DURANTE LA OPERACION.
IL PORTAELEMENTO RF PUÒ PRESENTARE VOLTAGGIO RF - TENERE L’ELEMENTO NELLA PRESA DURANTE IL FUNZIONAMENTO.
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Bird Series 4201 Multi-Channel RF Directional Wattmeter
iv
About This Manual
This instruction book covers the Series 4201 Multi-Channel RF Directional Wattmeters. Specifically, the
Models 4201A501, 4201A502, 4201A503, and 4201A504.
This instruction book is arranged so that essential information on safety appears in the front of the book.
Reading the Safety Precautions section before operating the equipment is strongly advised.
The remainder of this instruction book is divided into Chapters. At the beginning of each chapter, a general
overview describes the contents of that chapter.
Operation
First time users should read Chapter 1 - Introduction, and Chapter 2 - Installation. to get an overview of
equipment capabilities and installation. An experienced operator can refer to Chapter 3 - Operating
Instructions. All instructions necessary to operate the equipment appear in this chapter.
Maintenance
All personnel should be familiar with preventative maintenance found in Chapter 4 - Maintenance. If a
failure should occur, the troubleshooting section will aid in isolating and repairing the failure.
Parts
For location of major assemblies or parts, refer to the parts lists and associated drawings in Chapter 4 Maintenance.
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.
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Bird Series 4201 Multi-Channel RF Directional Wattmeter