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- 8135
- Operation Manual
BIRD 8135 Operation Manual
Summary of 8135
Page 1
Termaline ® coaxial load resistor operation manual model 8135 ©copyright 2016 by bird electronic corporation instruction book part number 920-8135 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 5 . See page 6 . Caution statements t...
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 normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 operation under abnormal conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 shutdown procedures . . . . . . . . . . . . . . . . ...
Page 9: Purpose and Function
1 chapter 1 introduction purpose and function the bird model 8135 termaline load resistor is a portable, general purpose 50 ohm coaxial transmission line termination. It is a self-contained unit requiring no outside power source or additional equipment. This coaxial load resistor provides an accurat...
Page 10: Items Furnished
Termaline® coaxial load resistor 2 items furnished the rf input connector, located on the front face of the unit, is a female n. It is a special “quick-change” design permitting rapid and easy interchange with other bird an type “qc” connectors. This instruction book is the only other item provided....
Page 11: General
3 chapter 2 theory of operation general the model 8135 termaline load consists essentially of a cylindrical film type resistor immersed in dielectric coolant. The resistor, individually selected for its accuracy, is enclosed in a special tapered housing which provides a linear reduction in surge imp...
Page 12: Location
4 chapter 3 installation location free air circulation around the model 8135 termaline load is essential. Keep the load in the clear, and do not place it near heated surfaces. The model 8135 should have at least a 6 inch clearance on all sides. Keep the space above the unit unobstructed for good air...
Page 13: Use and Function of Controls
5 chapter 4 operating instructions use and function of controls the model 8135 is a passive electronic device and therefore has no controls to operate. Initial adjustment no adjustments or setting are required. Start up connect the model 8135 termaline load to the transmitting equipment under test w...
Page 14: Shutdown Procedures
Termaline® coaxial load resistor 6 operation under abnormal conditions the model 8135 can be subjected to moderate overloads for short periods of time, providing a sufficient amount of time is allowed between intervals for adequate cooling. An example would be 250 watts for a maximum of 5 minutes, a...
Page 15: Troubleshooting
7 chapter 5 maintenance troubleshooting for corrections requiring repair or replacement of components, refer to the appropriate section for your specific model. . Problem possible cause remedy leakage of coolant oil around clamping band or radiator housing. Clamping bands not tight. Tighten slightly...
Page 16: Cleaning
Termaline® coaxial load resistor 8 cleaning radiator the principle maintenance required by the operator will be the cleaning of the radiator fins. Keep the radiator of the model 8135 termaline load clean and free of dust. Wipe away the accumulated dust and grime with a soft clean cloth. If the insul...
Page 17: Rf Assembly Test
Maintenance 9 rf assembly test dc resistance - check the condition of the load resistor by accurate measurement of the dc resistance between the inner and outer conductors of the rf input connector. Use a resistance bridge or ohmmeter with an accuracy of one percent or better at 50 ohms for this pur...
Page 18: Assembly
Termaline® coaxial load resistor 10 rf load resistor assembly to replace the load resistor assembly, proceed as follows: 1. Stand load vertically, connector end up. 2. Loosen clamp screw until clamping band is released. 3. Lift load resistor assembly straight up out of the cylinder, allowing the coo...
Page 19: Customer Service
Maintenance 11 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 ...
Page 20: Replacement Parts List
Termaline® coaxial load resistor 12 replacement parts list item qty. Description part number 1 1 rf load resistor assembly 8130-015 2 1 radiator 2400-025 3 1 o-ring seal 5-229 4 2 clamping band assembly 7500-254 5 1 diaphragm 2400-015 6 1 diaphragm cap 2400-050 7 1 connector *see below 8 0.5 gallon ...
Page 21: 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...