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- 8141
- Operation Manual
BIRD 8141 Operation Manual
Summary of 8141
Page 1
Termaline ® load resistor operation manual model 8141 ©copyright 2016 by bird electronic corporation instruction book part number 920-8141 rev. D termaline is a trademark of bird electronic corporation.
Page 2: Safety Precautions
I 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. War...
Page 3: Safety Symbols
Safety precautions ii safety symbols note: calls attention to supplemental information. 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. See page 6 . See page 11 . Caution statements ...
Page 4: Safety Statements
Termaline® coaxial load resistor iii safety statements usage any use of this instrument in a manner not specified by the manufacturer may impair the instrument’s safety protection. Uso el uso de este instrumento de manera no especificada por el fabricante, puede anular la protecciÓn de seguridad del...
Page 5
Safety precautions iv 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 exclusivo del personal de servicio capacitado. Para evi...
Page 6: About This Manual
Termaline® coaxial load resistor v about this manual this manual covers the operating and maintenance instructions for the following models: 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 m...
Page 7
Vi table of contents safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I safety symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Ii warning statements . . . . . . . . . . . . . . . . . . . ....
Page 8
Termaline® coaxial load resistor vii chapter 5 maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 cleaning . . . . . . . . . . . . . . . . . . . . ...
Page 9: General
1 chapter 1 introduction general this instruction book is intended for use by operators of the models 8141 and 8141-010 termaline load resistor. This chapter contains introductory information including product specifications; items supplied; and accessory items. Purpose and function the models 8141 ...
Page 10: Environmental Requirements
Termaline® coaxial load resistor 2 power and utility requirements other than the rf power input the models 8141 and 8141-010 has no need for an external source of power or utility services. Environmental requirements the loads should be operated in as clean and vibration free an environment as possi...
Page 11: General
3 chapter 2 theory of operation general the models 8141 and 8141-010 termaline load resistor consists essentially of a cylindrical film type resistor immersed in a dielectric coolant. The resistor, individually selected for its accuracy, is enclosed in a special tapered housing which provides a line...
Page 12: General
4 chapter 3 installation general position the model 8141 and 8141-010 termaline load resistor to provide at least six inches of unobstructed space around and above the unit. Place the load to permit the shortest possible cable length between the unit and the transmitting equipment. Operate the load ...
Page 13: Start-Up
5 chapter 4 operating instructions start-up connect the models 8141 and 8141-010 termaline load resistor to the transmitting equipment under test with 50 ohm coaxial cable such as rg-213/u or equal, equipped with a male n type plug (ug-21e/u or equal) which mates with the rf input connector of the l...
Page 14: Emergency Shutdown
Termaline® coaxial load resistor 6 emergency shutdown turn off the equipment by removing power from the rf generator. 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..
Page 15: Troubleshooting
7 chapter 5 maintenance troubleshooting for corrections requiring repair or replacement of components, refer to the appropriate section for each specific model. . Problem possible cause remedy coolant oil leak around clamping band or radiator. Clamping bands not tight. Tighten slightly with screwdri...
Page 16: Cleaning
Termaline® coaxial load resistor 8 cleaning outside surface the outside surface of the instrument, especially the cooling fins, should be wiped free of dust and dirt when necessary. Clean the rf input connector with a clean dry cloth. Use an aerosol type non residue forming contact cleaner on the in...
Page 17: Disassembly
Maintenance 9 normally the dc resistance of the load will be a nominal 50 ohms. Stabilization of the resistive film or temperature can cause a change in the dc resistance. Always check the load, when its temperature is between 20 and 25 degrees celsius. Check and record the dc resistance value of th...
Page 18: Reassembly
Termaline® coaxial load resistor 10 note: the coolant level should be about one inch below top of the cylinder. If oil appears contaminated, replace. Use only the speci- fied coolant, bird p/n 5-1070. Rf load resistor assembly 1. Stand the radiator vertically with rf input connector up. 2. Loosen th...
Page 19: Repairs
Maintenance 11 rf load resistor assembly to install assembly, reverse the procedures in "disassembly" on page 9 . Repairs repairs beyond what is covered in this instruction book will require return of the equipment to bird electronic corporation for service. Please consult the factory. Storage no sp...
Page 20: Shipment
Termaline® coaxial load resistor 12 shipment wrap and secure the rf connector with tape to keep out foreign material during shipment. Pack and brace the load in a shipping container, a corrugated paper container should suffice. Specifications replacement parts list impedance 50 ohms nominal vswr 1.1...
Page 21
Maintenance 13 available qc type connectors description part number n-female 4240-062 n-male 4240-063 hn-female 4240-268 hn-male 4240-278 lc-female 4240-031 lc-male 4240-025 lt-female 4240-018 lt-male 4240-012 c-female 4240-100 c-male 4240-110 uhf-female (so-230 4240-050 uhf-male (pl-259) 4240-179 7...
Page 22: Limited Warranty
13 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 ob...