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BIRD Termaline 8890SC Series Operation Manual

Semiconductor load resistor
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®
Termaline
Semiconductor
Load Resistor
Series 8890SC
Operation Manual
©Copyright 2009 by Bird Technologies, Inc.
Instruction Book Part Number 920-8890-SEMICON Rev. A
®
®
Termaline
and Tenuline
are Registered Trademarks
of Bird Electronic Corporation

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Summary of Contents for BIRD Termaline 8890SC Series

  • Page 1 ® Termaline Semiconductor Load Resistor Series 8890SC Operation Manual ©Copyright 2009 by Bird Technologies, Inc. Instruction Book Part Number 920-8890-SEMICON Rev. A ® ® Termaline and Tenuline 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 Precautions 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. The caution symbol appears on the equipment indicating there is important information in the instruction manual regarding that particular area.

  • Page 4: Caution Statements

    The following equipment cautions appear in the text and are repeated here for emphasis. CAUTION The Bird 8890-300SC13 is not designed for use with a blower. Do not install a blower on the unit. Doing so will void the warranty.

  • Page 5: Safety Statements

    Safety Precautions 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 6 Termaline® Semiconductor Load Resistor 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 7 Safety Precautions CONNECT INTERLOCK TO TRANSMITTER BEFORE OPERATING. BRANCHER LE VERROUILLAGE À L'ÉMETTEUR AVANT EMPLOI. CONECTE EL INTERBLOQUEO AL TRANSMISOR ANTES DE LA OPERACION. VOR INBETRIEBNAHME VERRIEGELUNG AM SENDER ANSCHLIESSEN. PRIMA DI METTERE IN FUNZIONE L'APPARECCHIO, COLLEGARE IL DISPOSITIVO DI BLOCCO AL TRASMETTITORE.

  • Page 8: About This Manual

    Termaline® Semiconductor Load Resistor About This Manual This manual covers the operating and maintenance instructions for the following models: 8890-300SC13 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 9: Table Of Contents

    Table of Contents Safety Precautions ..............i Safety Symbols .
  • Page 10 Termaline® Semiconductor Load Resistor Specifications ................13 Replacement Parts .

  • Page 11: Chapter 1 Introduction

    Chapter 1 Introduction Bird 8890 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 2500 watts of RF power can be dissipated.

  • Page 12: Chapter 2 Theory Of Operation

    Theory of Operation Load Resistor Bird 8890 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

    This chapter provides information for on-site requirements, unpacking, inspection, and preparing the load for use. CAUTION The Bird 8890-300SC13 is not designed for use with a blower. Do not install a blower on the unit. Doing so will void the warranty.

  • Page 14: Installing Thermoswitch

    Termaline® Semiconductor Load Resistor Installing Thermoswitch Bird 8890 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 @ 120VAC and 5A @ 230VAC.

  • Page 15: Interlock Connection

    Installation Interlock Connection CAUTION If installed, connect optional interlock before applying RF power. 1. Unscrew the large knurled ring-nut (A) at the lower end of the coupling jack assembly. 2. Pull it off the thermoswitch jack (B). 3. Unscrew the small knurled cover fitting from the base plug (D) of the connector to release the base. 4.

  • Page 16: Connecting Rf Power

    Termaline® Semiconductor Load Resistor 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 17: Chapter 4 Operating Instructions

    Chapter 4 Operating Instructions Normal Operation Bird 8890 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. Operation Under Abnormal Conditions The load can be subjected to moderate overloads for short periods.

  • Page 18: Chapter 5 Maintenance

    Chapter 5 Maintenance This chapter covers cleaning, inspection, trouble-shooting, and specifications for the Bird 8890 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 19: Rf Assembly Resistance Test

    Maintenance 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. Accurate measurement of the DC resistance between the inner and outer conductors of the RF input connector will provide a good check of the condition of the load resistor.

  • Page 20: Coolant Level

    Inspecting the Coolant 1. Remove the load resistor. See “Load Resistor” on page 11.. CAUTION Use only Bird coolant, P/N 5-1070, to prevent damage to the load. 2. Inspect the coolant for one of the following:  Good: The coolant is clear, with a faint yellow tinge, and has a slightly sweet smell.

  • Page 21: Repair

    Doing so will void the warranty. RF Connector The Bird 8890-300SC13 has a Bird “QC” connector which allows easy changing of the RF connector. This does not disturb the coolant seal or affect the electrical continuity of the load. To change the connector: 1.

  • Page 22: Shipping The Semiconductor

    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 23: Specifications

    Maintenance Specifications Frequency Range DC – 28 MHz Power Rating 2500 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 24: 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 LC-Female 4240-031 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 25: 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;...

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Termaline 8890-300sc13

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