Agilent Technologies 8495D Operating And Service Manual Download Page 1

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Agilent Technologies
8495D/K Attenuators

Operating and Service
Manual

Agilent Part Number: 08495-90027
Printed in USA
Print Date: July 2002
Supersedes: April 2002

Summary of Contents for 8495D

Page 1: ...Agilent Technologies 8495D K Attenuators Operating and Service Manual Agilent Part Number 08495 90027 Printed in USA Print Date July 2002 Supersedes April 2002 ...

Page 2: ...on equipment that is not furnished by Agilent Technologies This document contains proprietary information which is protected by copyright All rights are reserved No part of this document may be photocopied reproduced or translated to another language without prior written consent of Agilent Technologies RESTRICTED RIGHTS LEGEND Use duplication or disclosure by the U S Government is subject to rest...

Page 3: ...vice Manual iii What You ll Find in This Manual Instrument Definition on page 1 Description on page 2 Specifications on page 6 Installation on page 8 Operating Instructions on page 9 Operator s Check on page 10 Replaceable Parts on page 12 ...

Page 4: ... IN FUTURE EDITIONS FURTHER TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW AGILENT DISCLAIMS ALL WARRANTIES EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNEC...

Page 5: ...at http www agilent com find assist Click on Contact Us and select your country If you do not have access to the Internet one of these centers can direct you to your nearest Agilent Technologies representative United States 800 403 0801 Canada 877 429 9969 Europe 41 22 780 6111 Switzerland 33 1 69 82 66 66 France 49 7031 464 6222 Germany 44 188 9696622 Great Britain Japan 0120 32 0119 Latin Americ...

Page 6: ...e which if not correctly performed or adhered to could result in damage to the product or loss of important data Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met Instrument Markings When you see this symbol on your instrument you should refer to the instrument s instruction manual for important information This symbol indicates hazardous voltages T...

Page 7: ...ve and secured against any unintended operation Before Applying Power Verify that the product is configured to match the available main power source as described in the input power configuration instructions in this manual If this product is to be powered by autotransformer make sure the common terminal is connected to the neutral grounded side of the ac power supply This ISM device complies with ...

Page 8: ...viii 8495D K Attenuators Operating And Service Manual ...

Page 9: ...comprise the serial number prefix The last five digits form the sequential suffix that is unique to each instrument The contents of this manual apply to instruments with the following serial prefixes An attenuator manufactured after the printing of this manual may have a serial prefix that is not listed above This unlisted serial prefix indicates that the attenuator is different from those documen...

Page 10: ...prings which ensure long life and high repeatability In the 8495D the edge line controls are flexed by low torque cams In the 8495K the edge line controls are flexed by solenoid plungers see Figure 1 Table 1 on page 3 shows the switching arrangement required to increase the amount of attenuation from 0 to 70 dB in 10 dB steps In the 8495K to ensure specified performance it is recommended that the ...

Page 11: ...or RF input or output connector to greater the 7Vdc If the attenuator must be connected to a device with a potential greater than 7 Vdc use a blocking capacitor Supplied Accessories A solenoid drive cable is supplied with the 8495K The cable is 1 5 m 5 ft long with a mating connector plug on one end and the other end is unterminated see Figure 2 on page 4 The part number for this cable is 8120 217...

Page 12: ...d Thru Line Atten Card Thru Line Atten Card V Cable Wire Color Code1 1 Five foot cable and mating plug assembly provided VIO YEL BLK GRN ORG BLU BRN WHT RED Connector Plug Pin Number 2 2 Pin 1 red wire is common for all coils Pins 2 3 and 4 are not used 5 6 7 8 9 10 11 12 1 8495K 0 dB 10 dB 0 dB 20 dB 0 dB 20 dB 0 dB 20 dB Option 016 Flat Pack Plug Pin Number3 3 Pin 6 is common for all coils Pins ...

Page 13: ...scription 2220 0006 Screw fillister Head 4 40x7 8 in for attaching base 8120 2178 Cable solenoid drive 1 5 meters 5 feet long connector plug on one end and other end unterminated 8495K 0370 1091 Knob 84950 08496 20008 Base TKP12 100 P TS 100 AU 1 Connector Plug and Contacts only without cable 8495K 1 Available from Viking Industries Inc Chatsworth California 91311 ...

Page 14: ...ulse width of 10 microseconds Solenoid Drive For Agilent 8495K only Switching speed Maximum 20 milliseconds including settling time Frequency Range dc to 26 5 GHz Attenuation 0 to 70 dB in 10 dB steps Attenuation Accuracy dB referenced from 0 dB Attenuation Selection dB dc 6 0 GHz 6 0 12 4 GHz 12 4 18 0 GHz 18 0 26 5 GHz 10 0 3 0 4 0 5 0 7 20 0 5 0 5 0 6 0 8 30 0 6 0 7 0 8 1 0 40 0 7 0 9 1 1 1 5 5...

Page 15: ... serial number Also mark the container FRAGILE to assure careful handling In any correspondence refer to the instrument by model number and full serial number Instrument Frequency Range GHz Maximum SWR 8495D 8495K dc to 6 0 6 0 to 12 4 12 4 to 18 18 to 26 5 1 25 1 45 1 9 2 2 Instrument Dimensions 1 depth x width x height Weight 8495D 6 25 in x 2 0625 in x 1 6875 in 159 mm x 52 mm x 43 mm 15 oz 425...

Page 16: ...rrier s inspection The Agilent office will arrange for repair or replacement without waiting for claim settlement Mating Connectors The APC 3 5 connector is a 3 5 mm air line connector that will mate with the SMA type connectors The SWR performance of this hybrid connection is similar to a mated pair of SMA connectors when used within the frequency range of the SMA connector Option The attenuators...

Page 17: ...ogrammable attenuator at the same time This causes rapid cycling of the solenoid and could reduce the operating life of the attenuator The rapid cycling may produce a buzzing sound from the attenuator Operating Information Either RF connector may be used as the input or output connector Connect the solenoid drive cable of the programmable attenuator to the solenoid drive connector Jl By applying t...

Page 18: ...or section is being properly switched and checks the low frequency accuracy of the attenuator NOTE The SWR meter used in this check is calibrated for a square law detector and therefore the range changes and errors read in dB are twice that indicated by the meter Figure 4 Operator s Check Setup Procedure 1 Connect equipment as shown in Figure 4 with the attenuator set to 0 dB 2 Set the test oscill...

Page 19: ...he Agilent 11713A Attenuator Switch Driver Operating and Service Manual for programming instructions NOTE The attenuators have no internal adjustments and should not be opened If defective return the attenuator to the nearest Agilent Technologies office for repair Table 4 Attenuator and SWR Settings SWR Meter Range dB Attenuation Meter Indication dB 8495D K Minimum Actual Maximum 2 0 Set to 0 5 6 ...

Page 20: ... If the instrument is opened the warranty is void Troubleshooting Troubleshooting consists of performing the Operator s Check on page 10 If the instrument does not perform within limits return the instrument to Agilent Technologies Table 5 Replaceable Parts Description Part Number Knob 8495D 0370 1091 Cable solenoid drive 1 5 m 5 ft long connector plug on one end and other end un terminated 8495K ...

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