INSTRUCTION BOOK OPERATING INSTRUCTIONS TERMALINE® COAXIAL LOAD RESISTOR SERIES 8000 Electronic Corporation Cleveland (Solon) Ohio USA © Copyright 1997 by Bird Electronic Corporation Instruction Book Part Number 920-8000S Rev.
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. Keep Away From Live Circuits Operating personnel must at all times observe normal safety regulations. Do not replace components or make adjustments inside equipment with the high voltage supply turned on. To avoid casualties, always remove power.
Safety Symbols 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 appears on the equipment indicating there is important information in the instruction manual regarding that particular area. + NOTE: Calls attention to supplemental information.
CAUTION STATEMENT The following equipment caution appears in the text whenever the equipment is in danger of damage and is repeated here for emphasis. CAUTION Do not operate these loads continuously above their maximum power rating. Load failure will result. SAFETY STATEMENTS USAGE ANY USE OF THIS INSTRUMENT IN A MANNER NOT SPECIFIED BY THE MANUFACTURER MAY IMPAIR THE INSTRUMENT’S SAFETY PROTECTION.
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 E XC L USIV O DE L P E R SON A L DE SE R V IC IO CAPACITADO. PARA EVITAR EL PELIGRO DE DESCARGAS ELCTRICAS, NO REALICE NING¤N SERVICIO A MENOS QUE EST CAPACITADO PARA HACERIO. WARTUNG ANWEISUNGEN FÜR DIE WARTUNG DES GERÄTES GELTEN NUR FÜR GESCHULTES FACHPERSONAL.
About This Manual This instruction book covers the models 8080, 8085, 8163, 8164, 8166, 8173, 8431 Termaline Coaxial Load 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.
Table Of Contents Safety Precautions . . . . . . . . . . . . . . . . . . . . . . i Warning Statements . . . . . . . . . . . . . . . . . . . . ii Caution Statements . . . . . . . . . . . . . . . . . . . . iii Safety Statements. . . . . . . . . . . . . . . . . . . . . iii About This Manual . . . . . . . . . . . . . . . . . . . . v Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 1 Purpose and Function . . . . . . . . . . . . . . . . . . . 1 Performance Characteristics and Capabilities . . . . .
Bird Model 8000 Series Termaline Coaxial Load Resistor Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . 9 Normal Operation . . . . . . . . . . . . . . . . . . . . . 9 Operation Under Emergency, Adverse or Abnormal Conditions . . 9 Shutdown . . . . . . . . . . . . . . . . . . . . . . . . 9 Emergency Shutdown . . . . . . . . . . . . . . . . . . . 10 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 11 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Outside Surface . .
Chapter 1 Introduction This instruction book is intended for use by operators of the Models 8080, 8085, 8163, 8164, 8166, 8173, and 8431 Termaline Coaxial Load Resistor. This chapter contains introductory information including product specifications, items supplied, and accessory items available. Purpose and Function The Series 8000 Termaline Load Resistors are portable, general purpose 50 ohm coaxial transmission line terminations.
Bird Model 8000 Series Termaline Coaxial Load Resistor Power and Utility Requirements These loads are passive devices that are self contained and do not require any external source of power or utility to function other than the RF input power. Environmental Requirements These loads should be operated in a dust and vibration-free environment. The ambient temperature range should remain between -40°C and +45°C (-40°F and +113°F) for proper operation.
Introduction Specifications Impedance Ambient Temperature 50 ohms nominal -40°C to +45°C (-40°F to +113°F) Convection air currents Any †† Cooling Method Operating Position MAX. VSWR MODEL 8080 8085 8163 8164 8166 8173 8431 1.1 dc-1000 1.25 1000-3500 1.1 dc-1000 MAX. CONNS. WATTS FREQ. MHz N-M† 25 dc-3500 N-M† 50 dc-3500 WT. OZ. SIZE 5-9/64"L x 1-1/4"sq (130.6 x 31.8 mm) 5-9/64"L x 1-3/4"sq (Similar to Model 8164, see Installation, Chapter 2) 1.1 dc-1000 N-F† 100 dc-2400 6-63/64"L x 1.
Bird Model 8000 Series Termaline Coaxial Load Resistor Figure 1 Model 8085 Outline Drawing 4-1/4 (108mm) 57/64 (23mm) COAXIAL RESISTOR Male N "QC" Connector 4240-063 1-3/4 (44mm) Square ELECTRONIC CORP.
Chapter 2 Theory of Operation General The resistive element, in these dry Termaline Loads, is individually selected for its accuracy, and enclosed in a heat sink housing. The housing is specially contoured inside to provide the load with its unusually low reflection characteristics throughout its entire frequency range. The housings for the 25, 50, 100, and 150 Watt models are deeply slotted and painted black with a lusterless finish to improve their heat dissipation.
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Chapter 3 Installation General These loads may be used for portable operation or fixed installation. The Models 8080, 8085 and 8164 are, in general, light enough to be attached directly to the mating RF connector of another device such as a Bird Thruline Wattmeter or simply set on the workbench like the Models 8166, 8173, and 8431. Attach the load resistor as close as possible to the transmitter’s output and use only suitable connectors.
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Chapter 4 Operating Instructions Use and Function of Controls Initial Adjustments These loads, being passive devices, have no indicators or operating controls. Start-Up Connect these loads to the transmitting equipment under test with 50 ohm coaxial cable where necessary (RG-8A/U, RG-9/U, RG-213/U or equal) equipped with a suitable plug which mates with the RF input connector of the load.
Bird Model 8000 Series Termaline Coaxial Load Resistor Emergency Shutdown WARNING Never attempt to disconnect RF equipment from the transmission line while RF power is being applied. Leaking RF energy is a potential health hazard. Turn off the RF power at its source.
Chapter 5 Maintenance Troubleshooting Table 1 For corrections requiring repair or replacement of components, refer to the appropriate section for your specific model. PROBLEM POSSIBLE CAUSE REMEDY Excessive overTransmitter power Reduce transmitter heating too high power. Faulty RF resistor Return to factory for repair. High or low dc re- Faulty RF input Replace. sistance values “QC” connector Loose “QC” conTighten with nector screwdriver. Faulty RF resistor Return to factory for repair.
Bird Model 8000 Series Termaline Coaxial Load Resistor b. Inspect the load for completeness and general condition of the equipment. c. A Troubleshooting Chart lists the commonly encountered problems, their possible causes and remedies. Use this chart as a guide when analyzing symptoms. Preventive Maintenance Due to the basic simplicity of construction, the major requirement for preventive maintenance is to keep the equipment clean, particularly the radiator fins.
Maintenance Reassembly RF Connector To install a new connector, reverse the procedures in paragraph RF Connector, Disassembly. Be sure that the projecting center pin on the connector is carefully engaged and properly seated with the mating socket of the load resistor input. Repairs WARNING This product contains a resistor substrate made of beryllium oxide. This is a potentially toxic ceramic and may be harmful to your health.
Bird Model 8000 Series Termaline Coaxial Load Resistor Sales Offices For the location of the sales office nearest you, give us a call or visit our Web site at http://www.bird-electronic.com Storage No special preparations for storage are necessary other than to cover the equipment to keep out dust and dirt. Store these units in a dry and dust-free environment where the ambient temperature will remain within the -40°C to +45°C (-40°F to +113°F) working range of the loads.
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.
DECLARATION OF CONFORMITY Manufacturer: Bird Electronic Corporation 30303 Aurora Road Cleveland, Ohio 44139-2794 Product: Termaline RF Coaxial Load Resistors Models: 8065 8431 8085 8166 8431-020 8085A020 8173 8431-030 8173-030 8164 The undersigned hereby declares, on behalf of Bird Electronic Corporation of Cleveland, Ohio, that the above-referenced product, to which this declaration relates, is in conformity with the provisions of the following standards; 1.
