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BIRD Termaline 8920 Series Operation Manual

Semiconductor load resistor
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®
Termaline
Semiconductor
Load Resistor
Series 8920
Operation Manual
©Copyright 2016 by Bird Technologies, Inc.
Instruction Book Part Number 920-8920-SEMICON Rev. A
Termaline® and Thruline® are Registered Trademarks
of Bird Electronic Corporation

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Summary of Contents for BIRD Termaline 8920 Series

  • Page 1 ® Termaline Semiconductor Load Resistor Series 8920 Operation Manual ©Copyright 2016 by Bird Technologies, Inc. Instruction Book Part Number 920-8920-SEMICON Rev. A Termaline® and Thruline® are Registered Trademarks of Bird Electronic Corporation...

  • Page 2: Safety Precautions

    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. WARNING Keep Away From Live Circuits Operating Personnel must at all times observe general safety precautions.
  • Page 3 Safety Symbols 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 indicates that a shock hazard exists if the precautions in the instruction manual are not followed.

  • Page 4: Warning Statements

    Termaline® Semiconductor Load Resistor 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 BOTH vent plugs must be used at all times when the unit is operating or cooling. Failure to do so could result in an explosion or severe burns.

  • Page 5: Caution Statements

    This load is designed for operation in a horizontal position only, with the vent plugs up. Do not use in any other manner. See page 3 CAUTION If installed, connect optional interlock before applying RF power. See page 4 CAUTION Use only Bird coolant, P/N 5-1070, to prevent damage to the load. See page 9...

  • Page 6: Safety Statements

    Termaline® Semiconductor 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. 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.
  • Page 7 Safety Statements 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 SERVICIO LAS INSTRUCCIONES DE SERVICIO SON PARA USO EXCLUSIVO DEL PERSONAL DE SERVICIO CAPACITADO.
  • Page 8 Termaline® Semiconductor Load Resistor 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.

  • Page 9: About This Manual

    About This Manual About This Manual This instruction book covers the models listed below: 8921SC13 Changes to this manual We have made every effort to ensure this manual is accurate. If you discover any errors, or if you have suggestions for improving this manual, please send your comments to our Solon, Ohio factory.

  • Page 10: Table Of Contents

    Table of Contents Safety Precautions ..............i Safety Symbols .

  • Page 11: Chapter 1 Introduction

    Chapter 1 Introduction Bird 8920 Series Semiconductor Loads are portable, 50 ohm, coaxial RF transmission line terminations. They are designed for frequency ranges of DC – 28 MHz, specially calibrated for greater stability at 13.56 MHz. They provide accurate, dependable, and low reflection line terminations. Up to 5000 watts of RF power can be dissipated.

  • Page 12: Chapter 2 Theory Of Operation

    Theory of Operation Load Resistor Bird 8920 series loads consist of a thin-film-on-ceramic resistor immersed in a dielectric coolant. The resistor, individually selected for its accuracy, is enclosed in a special housing. When surrounded by the coolant, this produces a uniform, practically reflectionless line termination over the specified frequencies.

  • Page 13: Chapter 3 Installation

    Installing Thermoswitch Bird 8920 series loads can be equipped with an optional interlock thermoswitch, P/N 8890-008. It is normally closed, opening at 236 °C (457 °F), with a rating of 10A @ 120 VAC and 5A @ 230 VAC.

  • Page 14: Interlock Connection

    Termaline® Semiconductor Load Resistor 2. Stand the unit on its front, supporting it so that the connector is not damaged. In this position there is no danger of the coolant pouring out through the socket plug hole.  3. Remove the socket plug just above the connector assembly, using a "...

  • Page 15: Connecting Rf Power

    Installation Connecting RF Power After installing the load, the RF transmission line can be attached using standard coaxial line coupling kits. 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.

  • Page 16: Chapter 4 Operating Instructions

    Failure to do so could result in an explosion or severe burns. Normal Operation Bird 8920 series loads have no indicators or operating controls. They require no special operating procedures or surveillance when their performance limits are not exceeded. Follow the instructions for the specific generator equipment.

  • Page 17: Chapter 5 Maintenance

    Chapter 5 Maintenance This chapter covers cleaning, inspection, trouble-shooting, and specifications for the Bird 8920 series loads. 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.

  • Page 18: Inspection

    Termaline® Semiconductor Load Resistor Inspection Inspect the unit every six months. Check for coolant leakage around the clamping band and the thermoswitch. Also check for corrosion. RF Assembly Resistance Test Note: These tests are by no means a necessity to the operation of the load but merely guidelines for the users information.

  • Page 19: Coolant Level

    Replace RF Connector The following procedure may be used to remove and replace Bird QC connectors. 1. Remove four 8-32 round head machine screws from the corners of the connector flange. 2. Pull the connector straight out.

  • Page 20: Load Resistor

    Any maintenance or service procedure beyond the scope of those in this chapter should be referred to a qualified service center. If the unit needs to be returned for any reason, request an Return Material Authorization (RMA) through the Bird Technologies website. All instruments returned must be shipped prepaid and to the attention of the RMA number.

  • Page 21: Specifications

    Maintenance Specifications Frequency Range DC – 28 MHz Power Rating 5000 W continuous duty Impedance, Nominal 50 ohms VSWR 1.1 max < 0.1 dB, from 0 to 100% rated power VSWR Stability at stability frequency Stability Frequency 13.56 MHz ± 10 kHz Connectors “QC”...

  • Page 22: Available "Qc" Type Connectors

    Termaline® Semiconductor Load Resistor Available “QC” Type Connectors Connector Part Number BNC-Female 4240-125 BNC-Male 4240-132 C-Female 4240-100 C-Male 4240-110 HN-Female 4240-268 HN-Male 4240-278 4240-031 LC-Female LC-Male 4240-025 Open Term. 4240-080 # 10-32 Nut LT-Female 4240-018 LT-Male 4240-012 N-Female 4240-062 N-Male 4240-063 SC-Female 4240-090...

  • Page 23: Limited Warranty

    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 specifica- tions, drawings, blueprints and/or samples. Seller’s sole obligation under these warranties shall be to issue credit, repair or replace any item or part thereof which is proved to be other than as warranted;...

This manual is also suitable for:

Termaline 8921sc13

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