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BIRD Termaline 8860 Series Operation Manual

Load resistor
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®
Termaline
Load Resistor
Series 8860
Operation Manual
This unit requires the supplied vent plug be installed prior to use.
Operating the unit without the vent plug installed WILL result in equipment damage and may
cause personal injury.
© Copyright 2023 by Bird Technologies, Inc.
Instruction Book Part Number 920-8860S Rev. E
®
®
Termaline
and Tenuline
are Registered Trademarks
of Bird Electronic Corporation

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Summary of Contents for BIRD Termaline 8860 Series

  • Page 1 This unit requires the supplied vent plug be installed prior to use. Operating the unit without the vent plug installed WILL result in equipment damage and may cause personal injury. © Copyright 2023 by Bird Technologies, Inc. Instruction Book Part Number 920-8860S Rev. E ®...
  • Page 3 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. Keep Away From Live Circuits Operating Personnel must at all times observe general safety precautions.

  • Page 4: Safety Symbols

    Termaline® Load Resistor Safety Symbols Warnings call attention to a procedure, which if not correctly performed, could result in personal injury. Cautions 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 5: Warning Statements

    Safety Precautions 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. The vent plug must be installed at all times when the unit is in operation or cooling. Always check to ensure vent plug is installed prior to operation.

  • Page 6: Caution Statements

    Oil is slippery. If a leak occurs, be careful not to fall. See pages 10. Use only Bird coolant, P/N 5-1070, to prevent damage to the load. See pages 12. Blocking should be used to support the load to avoid damage to the interlock thermoswitch.

  • Page 7: 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 8 Termaline® 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 9 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 10: About This Manual

    When inquiring about updates to this manual refer to the part number and revision on the title page. Chapter Layout Introduction — Describes the features of the Bird Termaline, Semiconductor, RF Load Resistor lists equipment supplied and optional equipment, and provides power-up instructions. Theory of Operation —...

  • Page 11: Table Of Contents

    Table of Contents Safety Precautions ..............i Safety Symbols .
  • Page 12 Termaline® Load Resistor Replacing the RF Connector ..............14 Repairing the Load Resistor .

  • Page 13: Chapter 1 Introduction

    Bird 8860 Series Loads are portable 50 ohm coaxial RF transmission line terminations, designed for frequency ranges of DC – 2000 MHz. Bird 8860D Series Loads are identical, except that they are designed for the UHF (470 – 860 MHz) band.

  • Page 14: Chapter 2 Theory Of Operation

    Theory of Operation Load Resistor Bird 8860 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 15: Chapter 3 Installation

    If the shipping container is not damaged, unpack the unit. Save shipping materials for repackaging. 2. Inspect unit for visual signs of damage. If there is damage, immediately notify the shipping carrier and Bird Technologies. Site and Shelter Requirements The unit should be operated in a dry, dust and vibration free environment.

  • Page 16: Mounting The Load Resistor

    Termaline® Load Resistor Mounting the Load Resistor This load is designed for operation in a horizontal position only, with the mounting brackets down. Operation in any other orientation will cause insufficient cooling of the unit leading to premature failure. These loads are equipped for either portable use or fixed installation. The mounting brackets on the front and rear faces have four mounting slots arranged in a 4 "...

  • Page 17: Thermoswitch

    Installation Thermoswitch As an option, the load may be provided with a thermoswitch assembly, P/N 8890-008. The thermoswitch is used as an interlock switch to disable transmitter power if the coolant temperature exceeds a preset temperature, thus preventing possible damage from accidental power overloading from the transmitter or equipment malfunction. The thermoswitch It is normally closed, opening at 236 °C (457 °F), with a rating of 10A @ 120Vac and 5A @ 230Vac.

  • Page 18: Ithermoswitch Wiring Installation

    Termaline® Load Resistor IThermoswitch Wiring Installation 1. Unscrew the large knurled ring-nut (A) at the lower end of the coupling jack assembly. 2. Pull the large knurled ring-nut (A) off the thermoswitch jack (B). See Figure 2 3. Unscrew the small knurled cover fitting (C) from the base plug (D) of the connector to release the base. 4.

  • Page 19: Connecting The Rf Power

    Installation Connecting the RF Power Before first using the load, perform the following steps. 1. Wipe all connectors and insulator surfaces on the transmission line face with a clean soft cloth. 2. Check the RF input connector for signs of wear, damage, or dirt. 3.

  • Page 20: Unflanged Coupling

    Termaline® Load Resistor Unflanged Coupling To couple the unflanged connector with an unflanged RF line, use an appropriate coupling kit. Refer to Figure 4 while following the instructions below: 1. Insert the center bullet. 2. Bottom it on the midpoint nibs. 3.

  • Page 21: Chapter 4 Operating Instructions

    If installed, connect optional interlock before applying RF power. Normal Operation Bird 8860 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 transmitter equipment.

  • Page 22: Chapter 5 Maintenance

    Chapter 5 Maintenance This chapter covers cleaning, inspection, trouble-shooting, and specifications for the Bird 8860 series loads. Never attempt to disconnect RF equipment from the transmission line while RF power is being applied. Leaking RF energy is a potential health hazard.

  • Page 23: Routine Maintenance

    Maintenance Routine Maintenance shows the location of components which may be referred to in this section. Figure 5 Figure 5 Maintenance and Repair Locations Inspect the Load  Inspect the unit every six months. Check for coolant leakage around the clamping band. b.

  • Page 24: Rf Assembly Resistance Test

    1. Remove the load resistor (See "Repairing the Load Resistor" on page 14 Use only Bird coolant, P/N 5-1070, to prevent damage to the load.  The coolant should be clear, with a faint yellow tinge, and have a slightly sweet smell.
  • Page 25 Maintenance Figure 6 Measuring DC Resistance...

  • Page 26: Repair

    The potential for electric shock exists. Replacing the RF Connector The following procedure may be used to remove and relace Bird QC connectors. If not using the LC connector normally supplied, the frequency and power must be limited to the capabilities of the connector.

  • Page 27: Storage And Shipment

    Storage and Shipment Storing the Load Resistor 1. Cover Bird 8890 Loads before storing to keep out dust and dirt. When storing the load it is not necessary to install the shipping plug. 2. Store in a dry, dust-free environment where the ambient temperature will remain between –40 and +45 °C (–40 to +113 °F).

  • Page 28: Customer Service

    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 29: Specifications

    Maintenance Specifications Frequency Range 8862D, 8862D13-30, 470 – 860 MHz 8864D All other models DC – 2000 MHz Power Rating 1500 W continuous duty Impedance, Nominal 50 ohms VSWR 8862D, 8862D13-30, 1.065 8864D All other models DC – 1 GHz: 1.1 1 –...

  • Page 30: Replacement Parts

    Termaline® Load Resistor Replacement Parts Description Part Number RF Load Resistor 8860 8890A050 8861 8895-015 8862, 8862D 8892-015 8862D13-30 8862-017 8863 8897-003 8864 8891-050 8864D 8891-071 Resistor O-Ring 5-230 Clamping Band Assembly 2430-055 Plug Vent 2450-094 Shipping 2450-049 Overtemp Thermoswitch 8890-008 Coolant, 1.5 gal (5.7 liter) 5-1070-3...

  • Page 31: Available "Qc" Type Connectors

    Maintenance 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 SMA-Female 4240-336 SMA-Male...

  • Page 32: 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 specifications, 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 8860Termaline 8861Termaline 8862Termaline 8862dTermaline 8862d13-30Termaline 8863 ... Show all

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