Bird Electronic Econoload 8730A Manuel utilisateur

INSTRUCTION BOOK

ECONOLOAD®LOAD RESISTOR

SERIES 8730

INCLUDING MODELS 8730A, 8731

8732A, AND 8738A

Instruction Book P/N 920-8730S Rev. C

Econoload®and Termaline®are Registered

Trademarks of Bird Electronic Corporation

This Page Intentionally Left Blank

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 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 remove the RF transmission line while RF power is present.

Do Not Service Or Adjust Alone

Under no circumstances should any personnel 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.

Chemical Hazard

Dry cleaning solvents for cleaning parts may be potentially dangerous.

Avoid inhalation of fumes or prolonged contact with skin.

Coolant may contain ethylene glycol. Avoid ingestion, inhaling of vapors

and eye and skin contact.

Resuscitation

Personnel working with or near high voltages should be familiar with

modern methods of resuscitation.

Bird 8730 Series Econoload RF Load Resistor

Safety Symbols

NOTE: Calls attention to supplemental information.

Warning Statements

The following safety warnings appear in the text whenever the equipment

is in danger of damage and are shown 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.

This symbol indicates that a shock hazard exists if the

precautions in the instruction manual are not followed.

The caution symbol appears on the equipment indicating

there is important information in the instruction manual

regarding that particular area.

This symbol indicates that the unit radiates heat and

should not be touched while hot.

WARNING

Disconnect the unit from all power sources before servicing.

The unit may be energized from multiple sources.

The potential for electric shock exists.

WARNING

Improper wiring could result in electric shock and death.

WARNING

If the resistor breaks, there may be splinters or sharp pieces inside the

load housing. Be careful when repairing to avoid being cut.

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.

iii

Caution Statements

The following equipment cautions appear in the text whenever the

equipment is in danger of damage and are shown here for emphasis.

CAUTION

Incorrect hose connections will reverse coolant flow and

could destroy the load.

CAUTION

Different control systems are used for 115 Vac and 230 Vac. Use the

correct interlock control for your voltage.

CAUTION

If installed, connect optional interlock before applying RF power.

CAUTION

Do not interrupt coolant supply. Even momentary

application of RF power while coolant is not circulating could

cause immediate destruction of the load

CAUTION

Do not remove the resistor plug. Any attempt to do so will cause

leakage and resistor damage.

Bird 8730 Series Econoload RF Load Resistor

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.

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,

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.

CONNECT INTERLOCK TO TRANSMITTER/GENERATOR/

AMPLIFIER BEFORE OPERATING.

BRANCHER LE VERROUILLAGE À L’ÉMETTEUR/

GÉNÉRATEUR/AMPLIFICATEUR AVANT EMPLOI.

CONECTE EL INTERBLOQUEO AL TRANSMISOR/GENERADOR/

AMPLIFICADOR ANTES DE LA OPERACION.

VOR INBETRIEBNAHME VERRIEGELUNG AM SENDER/

GENERATOR/VERSTÄRKER ANSCHLIESSEN.

PRIMA DI METTERE IN FUNZIONE L’APPARECCHIO, COLLEGARE

IL DISPOSITIVO DI BLOCCO AL TRASMETTITORE/GENERATORE/

AMPLIFICATORE.

Bird 8730 Series Econoload RF Load Resistor

About This Manual

This manual covers the Bird 8730A, 8731, 8732A, and 8738A Econoload

RF Load Resistor.

This instruction book is arranged so that essential information on safety

is in the front of the book. Reading the Safety Precautions before operat-

ing 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, 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 preventative maintenance found in

Chapter 5 - Maintenance. If a failure should occur, the troubleshooting

section will aid in isolating and repairing the failure. Parts lists and

repair instructions are also in this chapter.

Changes To The Manual

We have made every effort to ensure this manual is accurate at the time

of publication. If you should discover any errors or if you have suggestions

for improving this manual, please send your comment 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.

Naming Conventions

The following terms will be used throughout this manual to refer to

certain components of the Econoload:

Econoload or Load: The entire unit. It contains the RESISTOR.

Resistor: A subcomponent of the LOAD. This is the ceramic resistor

which actually absorbs the RF power.

vii

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

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

Optional Items . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Theory Of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Resistor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Optional Flow Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Optional Thermal Interlock (8732A Only) . . . . . . . . . . . . . . . . . 3

Calorimetry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Unpacking and Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . 5

DC Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Interlock (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Thermoswitch (8732A Only) (Optional). . . . . . . . . . . . . . . . . . . . . 8

Connecting RF Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation without Interlock . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Normal Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Emergency Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Operation with the Optional Interlock . . . . . . . . . . . . . . . . . . . . . 12

Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Emergency Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

viii

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

DC Resistance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Flow Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Time Delay Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Safety Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Resistor Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Resistor Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Resistor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Conductor Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Preparation for Storage or Shipment . . . . . . . . . . . . . . . . . . . . . . 20

Customer Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Bird 8730A, 8732A, and 8738A . . . . . . . . . . . . . . . . . . . . . . . 22

Bird 8731 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Interlock (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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