INSTRUCTION BOOK OPERATING INSTRUCTIONS TERMALINE® RF COAXIAL LOAD RESISTOR MODELS 8072A-1 and 8072A-2 Electronic Corporation Cleveland (Solon) Ohio USA ©Copyright 1997 by Bird Electronic Corporation Instruction Book Part Number 920-8072A Revision C Termaline® is a Registered Trademark of Bird Electronic Corporation
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Safety Precautions 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.
ZUR VERMEIDUNG GEFÄHRLICHE, ELEKTRISCHE SC H O C K S , SID W AR T U N G S AR B E I T E N AUSSCHLIEßLICH VON Q U AL IF I Z IE R T E M SERVICEPERSONAL DURCHZUFÜHREN. ENTRENTIEN L’EMPLOI DES INSTRUCTIONS D’ENTRETIEN DOIT ÊTRE RÉSERVÉ AU PERSONNEL FORMÉ AUX OPÉRATIONS D’ENTRETIEN. POUR PRÉVENIR UN C H O C É L E C TR I Q U E DA N G ER EU X , N E P AS EFFECTUER D’ENTRETIEN SI L’ON N’A PAS ÉTÉ QUALIFIÉ POUR CE FAIRE.
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 throughly understood, and apply to all phases of operation and maintenance. Shock Hazard Do not attempt to disconnect an RF transmission line while RF power is present. Radiated RF power is a potential health hazard. Chemical Hazard Dry cleaning solvents used to clean parts may be dangerous.
Models 8072A-1 & 8072A-2 Termaline RF Coaxial Load Resistor WARNING This product contains a resistor substrate made of Beryllium oxide. This is a potentially toxic ceramic and may be harmful to your health. Beryllium oxide must be disposed of in accordance with the legal statutes dealing with hazardous material.
Table of Contents Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . i Warning Statements . . . . . . . . . . . . . . . . . . . . v Introduction . . . . . . . . . . . . . . . . . . . . 1 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Unpacking and Inspection . . . . . . . . . . . . . . . . . . 1 Connections . . . . . . . . . . . . . . . . . . . . . . . . 1 Maintenance . . . . . . . . . . . . . . . .
Models 8072A-1 & 8072A-2 Termaline RF Coaxial Load Resistor 4.395 REF. 2.000 -CAUTIONMAX. POWER RATING IS 300 WATTS WHEN BOLTED TO A HEAT SINK (1/8") ALUM. X 800 SQ. IN. .520 REF. Outline Drawing viii 1.
Chapter 1 Introduction This instruction book is intended for use by operators and installers of the Model 8072A-1 and 8072A-2 load resistor. Description The Bird Model 8072A-1 and 8072A-2 Termaline Coaxial Load Resistor is a dry (air dielectric), conduction cooled (needs heat sink), type 50-ohm RF (Radio Frequency) line termination. It is capable of dissipating 300 W of continuous power when properly mounted to a suitable heat sink.
Models 8072A-1 & 8072A-2 Termaline RF Coaxial Load Resistor + NOTE: A tapped heat sink can be used instead of using a washer and nut. 3. To ensure a proper thermal contact, torque the mounting screws to 25 to 30 inch-pounds. WARNING Never attempt to connect or disconnect the equipment from the transmission line while RF power is being applied. Leaking RF energy is a potential health hazard 4. Using a suitable cable, as short as convenient, attach the RF power source to the load with a mating connector.
Chapter 2 Maintenance WARNING This product contains a resistor substrate made of beryllium oxide. This is a potentially toxic ceramic and may be harmful to your health. Beryllium Oxide must be disposed of in accordance with the legal statues dealing with hazardous material. Any maintenance beyond the scope of those provided in this section should be referred to a qualified service center. All instruments returned for service must be shipped prepaid and to the attention of the Customer Service Group.
Models 8072A-1 & 8072A-2 Cleaning Termaline RF Coaxial Load Resistor 1. Gently remove loose dirt and grime using a soft clean cloth dampened detergent and water. Do not use paint thinner or other solvents that may cause damage to the finish. 2. RF Connectors - Clean RF connectors with a cotton swab dampened with alcohol, or any acceptable dry cleaning solvent. + NOTE: Keep the RF connectors covered when not in use. This will prevent dust and dirt from accumulating in the connectors.
Maintenance Specifications Power Rating w/ heat sink Frequency Range & VSWR Model 8072A-1 Model 8072A-2 300 W Continuous when mounted to a suitable heat sink. dc to 1 GHz at 1.10 Max. 1GHz to 2.4 GHz at 1.25 Max. 2.7 to 2.9 GHz at 1.15 Max Ambient Temperature -40° to +45°C (-40° to 113°F) Heat Sink Required 800 sq. in. plate x 1/8" (5200cm² x 3.
Limited Warranty All products manufactured by Seller are warranted to be free from defects in material and workmanship for a period of one (1) year, unless otherwise specified, from date of shipment and to conform to applicable specifications, drawings, blueprints and/or samples.
