BIRD TENULINE 8320 Series Operation Manual Download Page 1

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8320 SERIES

TENULINE

ATTENUATOR

Operation Manual

by Bird Technologies, Inc

Instruction Book Part Number 920-8320S Rev. B

Tenuline

® is a registered trademark

of Bird Electronic Corporation

Summary of Contents for TENULINE 8320 Series

Page 1: ...8320 SERIES TENULINE ATTENUATOR Operation Manual Copyright 2017 by Bird Technologies Inc Instruction Book Part Number 920 8320S Rev B Tenuline is a registered trademark of Bird Electronic Corporation...

Page 2: ...remove the RF transmission line while RF power is present WARNING Do Not Service Or Adjust Alone Under no circumstances should any person reach into an enclosure for the purpose of service or adjustm...

Page 3: ...e 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 cau...

Page 4: ...cooling Always check to ensure vent plug is installed prior to operation Failure to do this could result in damage to the equipment and endanger the operator s safety WARNING Leaking RF energy is a p...

Page 5: ...leading to premature failure CAUTION The input and output ends of these attenuators are clearly labeled Do not couple an attenuator backwards to the direction of power flow Destruction of the output r...

Page 6: ...DE SEGURIDAD DEL INSTRUMENTO BENUTZUNG WIRD DAS GER T AUF ANDERE WEISE VERWENDET ALS VOM HERSTELLER BESCHRIEBEN KANN DIE GER TESICHERHEIT BEEINTR CHTIGT WERDEN UTILISATION TOUTE UTILISATION DE CET IN...

Page 7: ...S GER TES GELTEN NUR F R GESCHULTES FACHPERSONAL ZUR VERMEIDUNG GEF HRLICHE ELEKTRISCHE SCHOCKS SIND WARTUNGSARBEITEN AUSSCHLIE LICH VON QUALIFIZIERTEM SERVICEPERSONAL DURCHZUF HREN ENTRENTIEN L EMPLO...

Page 8: ...tion Provides general information about the 8320 series attenuators Theory of Operation Describes in detail the construction of the 8320 series attenuators and how cooling is achieved Installation Pro...

Page 9: ...ntroduction 1 General Description 1 Operating Environment 1 RF Connectors 2 Chapter 2 Theory of Operation 3 Attenuator Construction 3 Cooling 3 Coolant Expansion 4 Heat Dissipation 4 Chapter 3 Install...

Page 10: ...nnectors 12 Troubleshooting 13 Repair Procedures 14 Coolant Leakage Repair 14 Replace RF Connector 14 Replace Coolant Tank Output End Cover Seal 14 Replace Coolant Tank Input O ring Seal 17 Replace RF...

Page 11: ...odels are portable and have a convenient carrying handle nested among the cooling fins on the top side If desired the attenuator may be permanently mounted see Mounting on page 6 Operating Environment...

Page 12: ...s are normally supplied for the input and output but may be conveniently and easily interchanged with other Bird QC connectors See Available QC Type Connectors on page 23 for a list of available conne...

Page 13: ...ction in surge impedance directly proportional to the distance along the resistor The output resistor is enclosed in a housing designed to return the attenuator to the characteristic impedance of 50 o...

Page 14: ...plied to the attenuator the coolant expands into the expansion tank as the air in the expansion tank is compressed it is allowed to escape through the vent plug Heat Dissipation Heat Dissipation is ac...

Page 15: ...eration in the horizontal position only with the handle up and mounting brackets down Allow at least six inches 150 mm of clearance around the unit in an area with freely circulating ambient air Unimp...

Page 16: ...d lock washers Setup Vent Plug Installation Model 8325 Before placing the Model 8325 Attenuator into service the solid shipping plug P N 2450 049 must be removed and replaced by the spring loaded vent...

Page 17: ...RG 8A U RG 9 U RG 213 U or equivalent equipped with plugs which mate with the connectors on the attenuator 3 Connect the output to a suitable load 4 Proceed according to Operating Instructions on page...

Page 18: ...urer s instructions The attenuator may be subjected to very moderate overloads for limited periods of time without overheating However this should be done very cautiously to guard the attenuator again...

Page 19: ...smitter immediately and allow the unit to cool before performing any maintenance 1 Disable RF power at the transmitter WARNING Leaking RF energy is a potential health hazard Never attempt to connect o...

Page 20: ...ance measurements should be taken periodically according to use Preparation Tools Common hand tools Ohmmeter with an accuracy of 1 at 50 ohms or use a resistance bridge Use low resistance leads prefer...

Page 21: ...the Attenuators OUTPUT connector Result should be 50 2 Ohms c Connect the multimeter test leads across the INPUT center conductor and the OUTPUT center conductor Result should be 93 7 2 Ohms 4 Record...

Page 22: ...enamel 4 Inspect the clamping bands around the connectors for signs of possible coolant leakage If evidence of leakage is found see Coolant Leakage Repair Clean Outside Surfaces The outside surface o...

Page 23: ...Coolant Tank Output End Cover Seal on page 14 or Replace Coolant Tank Input O ring Seal on page 17 Excessive overheating of the radiator Transmitter power too high Reduce transmitter power Faulty RF s...

Page 24: ...nput End Cover See Replace Coolant Tank Input O ring Seal on page 17 If leakage is significant check the coolant level in the radiator tank See Coolant Level Inspection on page 18 Replace RF Connector...

Page 25: ...1 connecting the pressure relief tube to the expansion tank using a 7 16 inch wrench See Figure 3 on page 15 Pull the nut away from the tank slightly 3 Loosen the 10 32 screw 2 securing the band clam...

Page 26: ...22 3 Inspect the End Cover seal 5 The o ring should be soft and pliable and free of surface cracks If damaged or hardened the o ring should be replaced See Replacement Parts on page 22 4 Install the E...

Page 27: ...3 Loosen the 10 32 screw 1 securing the band clamp to the RF input See Figure 5 on page 17 Figure 5 Input O Ring Removal 4 Remove the Band Clamp 5 Lift the RF input section out of the attenuator assem...

Page 28: ...bling the attenuator using this procedure if the unit is already partially disassembled check the coolant level using the All Models Coolant Level Check 1 Remove RF Power and allow attenuator to cool...

Page 29: ...o drip out as possible b Replace the coolant with fresh coolant filling the radiator tank to the proper level 8 Install the output end cover See Install Output End Cover on page 16 Storage If storing...

Page 30: ...rest you visit our Web site at http www birdrf com Shipping Model 8321 8322 and 8323 may be shipped without emptying the coolant Model 8325 if the shipping plug installed it is not necessary to empty...

Page 31: ...MHz Calibration Frequencies to 0 2 dB 30 100 200 300 400 and 500 MHz Weight Model 8321 Model 8322 Model 8323 Model 8325 6 1 2 lb 3 kg 19 lb 9 kg 11 lb 5 kg 25 lb 11 kg Dimensions Nominal Model 8321 M...

Page 32: ...61010 1 Which is in accordance with council directive 73 23 EEC 93 68 EEC Item Qty Part Number RF Assembly Model 8322 Model 8325 1 1 8322 002 1 8322 002 1 Radiator Assembly Model 8321 Model 8323 Model...

Page 33: ...gs o ring chain assembly and screw RPK8000 1 Vent Plug 1 2450 094 Shipping Plug 1 2450 049 Chain Assembly 1 8180 094 O Ring Used for Vent Shipping Plug 1 5 504 Bumper Feet 5 049 Connector Part Number...

Page 34: ...male 4240 100 C Male 4240 110 UHF Female 4240 050 UHF Male 4240 179 TNC Female 4240 156 TNC Male 4240 160 SC Female 4240 090 Mini UHF Female 4240 346 7 16 EIC Plug Type 169 4 4240 363 1 5 8 EIA Swivel...

Page 35: ...y such claim for breach of these warranties shall be deemed to be waived by Buyer unless made in writing within ten 10 days from the date of discovery of the defect The above warranties shall not exte...

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