Bird Technologies 8251D208 User Manual
INSTRUCTION BOOK
A
OPERATING INSTRUCTIONS
TERMALINE
COAXIAL LOAD RESISTOR
MODEL 8251D208
Electronic Corporation
Cleveland (Solon) Ohio US
Copyright 1998 by Bird Electronic Corporation
Instruction Book Part Number 920-8251D208 Rev. A
Termaline
is a Registered Trademark of
Bird Electronic Corporation
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 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 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.
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 protection. Serious injury or death can occur
if this grounding is not properly supplied.
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 correctly
performed, could result in personal injury.
i
CAUTION
Caution notes call attention to a procedure which if not correctly
performed, could result in damage to the instrument.
This symbol appears on the equipment indicating there is
important information in the instruction manual regarding
that particular area.
Note: Calls attention to supplemental informa-
+
tion.
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
The vent plug must be used at all times when the unit is in operation
or cooling. Failure to do this could result in damage to the equipment
and endanger the operator’s safety. Be sure to check this plug.
WARNING
Using this load in the upper end of its power dissipation range will
cause the housing to become hot! Care should be exercised in touching
it.
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.
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
This equipment is designed for operation in a horizontal position only,
with mounting brackets down. Do not operate in any other manner.
CAUTION
Do not operate this equipment over the rated 1000 watts continuously.
Damage to the resistive element will result.
ii
CAUTION
The unit is factory filled to the proper level with 1.1 gallons (4.2 liter)
of Bird P/N 5-1070. No other coolant should be used
CAUTION
Do not leave out the O-Ring seal, P/N 5-504 when interchanging the
vent and shipping plugs.
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.
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.
iii
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 DESCARGÉAS 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, 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.
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.
iv
About This Manual
This instruction book covers the model 8251D208 Termaline Coaxial Resistor.
This instruction book is arranged so that essential information on safety is
contained 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 and Sections.
Operation
First time operators should read Chapter 1 - Introduction, Chapter 2 - Theory
of Operation, and Chapter 3 - Installation to get an overview of equipment capabilities and how to install it. An experienced operator can refer to Chapter
4 - Operating Instructions. All instructions necessary to operate the equipment, are contained in this chapter.
Maintenance
All personnel should be familiar with preventive maintenance found in Chapter 5 - 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 - 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 Model 8251D208 Termaline Coaxial Load Resistor
vi
Table Of Contents
Safety Precautions. ......................i
Warning Statements. ......................ii
Caution Statements........................ii
Safety Statements. .......................iii
About This Manual. .......................v
Introduction. ........................1
Purpose and Function. ...................1
Applications. .......................1
Performance Characteristics and Capabilities. .........1
Power and Utility Requirements................1
Environmental Requirements. ................2
Items Supplied. ......................2
Items Required. ......................2
Tools and Test Equipment . .................2
Specifications. .........................3
Theory of Operation. .....................5
Cooling. .........................5
Installation. .........................7
Location. .........................7
Shipping and Vent Plugs. ..................7
Connecting to Transmitter. ....................8
Operating Instructions. ....................9
Normal Operation. .....................9
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Bird Model 8251D208 Termaline Coaxial Load Resistor
Operation Under Abnormal Conditions. ............9
Shutdown. ........................9
Emergency Shutdown. ...................10
Maintenance. ........................11
Troubleshooting. ........................11
Cleaning. ...........................11
Inspection. ..........................12
Preventive Maintenance. ....................12
Checking Coolant Level. ..................12
DC Resistance Measurement. ..................13
Preparation and Tools Required. ..............13
Checking the DC Resistance . ...............13
Disassembly. .........................14
Tools Required.......................14
RF Connector. ......................14
Rear Seal and Coolant. ..................15
RF Load Resistor Assembly. ................15
Radiator Handle. .....................15
Assembly............................16
RF Connector. ......................16
Diaphragm and Coolant Oil. ................16
RF Load Resistor Assembly. ................16
Radiator Handle. .....................16
Storage. ...........................17
Customer Service. .......................17
Sales/Repair Facilities. ..................17
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