BIRD Thruline 43 User manual

INSTRUCTION BOOK
RF DIRECTIONAL
THRULINE® WATTMETER
MODEL 43
Also Covers Models 4431, 43P
And Series 4300, 4520
©Copyright 2008 by Bird Electronic Corporation
Instruction Book Part Number 920-43 Rev. H
Thruline® and Termaline® are registered trademarks
of Bird Electronic Corporation

i
Safety 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 applied 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 or make adjustments to the
inside of the test equipment with the high voltage supply turned on.
To avoid casualties, always remove power.
Shock Hazard
Do not attempt to remove the RF transmission line while RF power is
present. Radiated RF power is a potential health hazard.
Do Not Service or Adjust Alone
Under no circumstances should any person reach into an enclosure to
service or adjust the equipment except in the presence of someone who
is capable of rendering aid.
Safety Earth Ground
An uninterruptible safety earth ground must be supplied from the
main power source to test instruments. Grounding one conductor of a
two conductor power cable is not sufficient protection. Serious injury
or death can occur if this grounding is not properly installed.
Resuscitation
Personnel working with or near high voltages should be familiar with
modern methods of resuscitation.

Bird Model 43 Wattmeter
ii
Safety Symbols
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
Warning Statements
The following warnings appear in the text where there is danger to
operating and maintenance personnel, and are repeated here for
emphasis.
WARNING
Warning notes call attention to a procedure, which if not correctly
performed, could result in personal injury.
CAUTION
Caution notes call attention to a procedure, which if not correctly
performed, could result in damage to the instrument.
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.
WARNING
When working with RF powers of 200 watts or more, the potential of
the center conductor of the line section will be over 100 volts. Do not
touch the center conductor while RF power is on.

iii
Caution Statements
The following equipment cautions appear in the text whenever the
equipment is in danger of damage, and are repeated here for emphasis.
Safety Statements
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.
CAUTION
For low reflection measurements, do not rotate the reflected power
element to read forward power. Damage to the element or
wattmeter could result.
CAUTION
Handle elements with care. Calibration could be disturbed if they
are dropped.
CAUTION
Do not attempt to remove the RF center conductor. This will
damage the line section.

Bird Model 43 Wattmeter
iv
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 FABRICANT PEUT
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 ELÉCTRICAS, NO
REALICE NINGÚN SERVICIO A MENOS QUE ESTÉ
CAPACITADO PARA HACERIO.
WARTUNG