Agilent Technologies 85050B User'S And Service Manual Download Page 43 | Manualshive

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85050B

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Troubleshooting

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Summary of Contents for 85050B

Page 1: ...3106A The calibration devices in this kit are individually serialized Record the device serial numbers in the table provided in this manual see Recording the Device Serial Numbers in Chapter 1 Agilent Part Number 85050 90050 Printed in USA Print Date August 2008 Supersedes June 2002 Copyright 1994 1996 2002 2008 Agilent Technologies Inc All rights reserved ...

Page 2: ... Restricted Rights Notice If software is for use in the performance of a U S Government prime contract or subcontract Software is delivered and licensed as Commercial computer software as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract cl...

Page 3: ...the Web To print copies of documentation from the Web download the PDF file from the Agilent web site Go to www agilent com Enter the document s part number located on the title page in the Search box Click Search Open the PDF and print the document ...

Page 4: ...4 85050B ...

Page 5: ...ctrical Specifications 2 6 Certification 2 7 3 Use Maintenance and Care of the Devices Electrostatic Discharge 3 2 Visual Inspection 3 3 Look for Obvious Defects and Damage First 3 3 Inspect the Mating Plane Surfaces 3 3 Cleaning Connectors 3 4 Gaging Connectors 3 6 Connector Gage Accuracy 3 6 When to Gage Connectors 3 6 Reading the Connector Gage 3 7 Gaging Procedure 3 8 Gaging the Sliding Loads ...

Page 6: ...Process 5 2 Where to Look for More Information 5 3 Returning a Kit or Device to Agilent 5 3 Contacting Agilent 5 4 6 Replaceable Parts Introduction 6 2 A Standard Definitions Class Assignments and Standard Definitions Values are Available on the Web A 2 ...

Page 7: ...85050B 1 1 1 General Information ...

Page 8: ...definitions of the devices in the kit for the 8510 systems a data disk set that contains the specifications and performance verification data for the 8510 systems Refer to Table 6 1 on page 6 2 for a complete list of kit contents and their associated part numbers NOTE A backup copy of each data disk and printout should be made immediately upon receipt of the calibration kit For information on maki...

Page 9: ...e of the art tolerances Although the sliding load has exceptional return loss its superior load stability qualifies it as a high performance device The sliding load was designed with the ability to extend the inner conductor for connection purposes and then pull it back to a preset pin depth This feature is critical since it minimizes the possibility of damage during the connection while maintaini...

Page 10: ...st four digits followed by a letter comprise the serial number prefix the last five digits are the suffix unique to each calibration kit Recording the Device Serial Numbers In addition to the kit serial number the devices in the kit are individually serialized serial numbers are labeled onto the body of each device Record these serial numbers in Table 1 1 Recording the serial numbers will prevent ...

Page 11: ...in this manual Preventive Maintenance The best techniques for maintaining the integrity of the devices in the kit include routine visual inspection cleaning proper gaging proper connection techniques All of these are described in Chapter 3 Use Maintenance and Care of the Devices Failure to detect and remove dirt or metallic particles on a mating plane surface can degrade repeatability and accuracy...

Page 12: ...asure one of the calibration standards If you can not obtain repeatable measurements from your calibration standards maintenance needs to be performed on the test port connectors cables and calibration standards Also maintain at least one sample of the device under test or some known device as your reference device A verification kit may be used for this purpose After calibration measure the refer...

Page 13: ...85050B 2 1 2 Specifications ...

Page 14: ... your fingers are a heat source Table 2 1 Environmental Requirements Parameter Limits Temperature Operatinga a The temperature range over which the calibration standards maintain conformance to their specifications 20 C to 26 C Storage 40 C to 75 C Error corrected rangeb b The allowable network analyzer ambient temperature drift during measurement calibration and during measurements when the netwo...

Page 15: ...ectors on page 3 6 explains how to use gages to determine if the kit devices have maintained their mechanical integrity Refer to Table 2 2 on page 2 5 for typical and observed pin depth limits Pin Depth Pin depth is the distance the center conductor mating plane differs from being flush with the outer conductor mating plane See Figure 2 1 The pin depth of a connector can be in one of two states ei...

Page 16: ...2 4 85050B Specifications Mechanical Characteristics Figure 2 1 Connector Pin Depth ...

Page 17: ... three or more measurements is not the true value Always compare the measured value with the observed pin depth limits in Table 2 2 to evaluate the condition of device connectors Table 2 2 Pin Depth Limits Device Typical Pin Depth micrometers 10 4 inches Measurement Uncertaintya micrometers 10 4 inches a Approximately 2 sigma to 2 sigma of gage uncertainty based on studies done at the factory acco...

Page 18: ... includes the following practices 1 Connector mating surfaces are clean 2 The changes in slide positioning are NOT done in equal steps equal steps results in very poor calibration for some portions of the frequency range 3 The center conductors of testport connectors are nominally set back from the outer conductors Sliding loads are designed to allow the center conductor to be moved The position o...

Page 19: ...ctory Agilent further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology NIST to the extent allowed by the institute s calibration facility and to the calibration facilities of other International Standards Organization members See How Agilent Verifies the Devices in Your Kit on page 4 2 for more information ...

Page 20: ...2 8 85050B Specifications Electrical Specifications ...

Page 21: ...85050B 3 1 3 Use Maintenance and Care of the Devices ...

Page 22: ...r test equipment Always wear a heel strap when working in an area with a conductive floor If you are uncertain about the conductivity of your floor wear a heel strap always ground yourself before you clean inspect or make a connection to a static sensitive device or test port You can for example grasp the grounded outer shell of the test port or cable connector briefly always ground the center con...

Page 23: ...re not kept clean or are not connected properly Connector wear eventually degrades performance of the device Calibration devices should have a long life if their use is on the order of a few times per week Replace devices with worn connectors The test port connectors on the network analyzer test set may have many connections each day and are therefore more subject to wear It is recommended that an...

Page 24: ...arks and flame Store in a tightly closed container It is extremely flammable In case of fire use alcohol foam dry chemical or carbon dioxide water may be ineffective Use isopropyl alcohol with adequate ventilation and avoid contact with eyes skin and clothing It causes skin irritation may cause eye damage and is harmful if swallowed or inhaled It may be harmful if absorbed through the skin Wash th...

Page 25: ...avoid snagging the swab on the center conductor contact fingers by using short strokes c Let the alcohol evaporate then blow the connector dry with a gentle stream of clean low pressure compressed air or nitrogen Always completely dry a connector before you reassemble or use it 4 Inspect Inspect the connector to make sure that no particles or residue remain Refer to Visual Inspection on page 3 3 ...

Page 26: ... three measurements having different gage orientations on the connector Even the resultant average can be in error by as much as 0 0001 inch due to systematic biasing errors usually resulting from worn gages and gage masters As the gages undergo more use the systematic errors can become more significant in the accuracy of the measurement When to Gage Connectors Gage a connector at the following ti...

Page 27: ...tor measuring applications this value will be zero When making a measurement the gage dial indicator will travel in one of two directions If the center conductor is recessed from the zero reference plane the indicator will move counterclockwise to indicate the amount of recession which is read as a negative value If the center conductor protrudes the indicator will move clockwise to indicate the a...

Page 28: ...fy that the setting is repeatable Remove the gage master 4 Gage the device connector refer to Figure 3 3 a If gaging one of the 50Ω loads in the kit use a collet extractor tool to remove the center conductor collet from the device connector to be gaged Refer to Table 6 1 on page 6 2 for the part number of this extractor tool Refer to Figure 2 1 on page 2 4 for an illustration of the 7 mm connector...

Page 29: ...f the Devices Gaging Connectors 3 9 perpendicular to the center axis f Compare the average reading with the pin depth specifications listed in Table on page 2 5 g Remove the device from the gage and replace the center conductor collet ...

Page 30: ...85050B Use Maintenance and Care of the Devices Gaging Connectors 3 10 Figure 3 3 Gaging 7 mm Connectors ...

Page 31: ...ector gage set CAUTION The centering beads supplied in the gage are used when gaging the airlines contained in the 85051B 7 mm verification kit Do not use the centering beads with any device in this calibration kit 85050B or the 85050D 7 mm calibration kit 5 Remove the center conductor protective cap from the sliding load 6 Remove the center conductor protective cap and the center conductor tip fr...

Page 32: ...ws by turning them 1 4 turn clockwise Refer to Figure 3 5 3 Gently turn the knurled center conductor cap on the sliding load until the gage pointer reads 0 0001 inches Refer to Figure 3 5 4 Tighten the two hex screws just until they are finger tight do not overtighten 5 Wait approximately five minutes to allow the temperature to stabilize Do not touch either the gage or the sliding load during thi...

Page 33: ...extend that connector sleeve and fully retract the sleeve on the moveable connector 6 Carefully align the connectors As you make the actual connection be sure the connectors align perfectly 7 Push the connectors straight together Do not twist or screw the connectors together 8 Engage the connector nut of the connector with the retracted sleeve over the threads of the other connector the connector ...

Page 34: ... as on a test port However it is recommended that you use an open end wrench to keep the body of the device from turning 1 Position both wrenches within 90 degrees of each other before applying force See Figure 3 6 Wrenches opposing each other greater than 90 degrees apart will cause a lifting action which can misalign and stress the connections of the devices involved This is especially true when...

Page 35: ...le is sufficient torque Connecting the Sliding Load Use this procedure to connect the sliding load to a test port or a 7 mm cable connector CAUTION Circuitry inside the test set at the test ports may be destroyed if precautions are not taken to avoid electrostatic discharge ESD During this procedure the center conductor of the sliding load is connected to the exposed center conductor of the test p...

Page 36: ...s Replace the protective plastic cap over the connector end This cap provides protection without requiring that the center conductor be withdrawn from the measurement plane It also keeps the center conductor tip from coming out of the connector How to Separate a Connection To avoid lateral bending force on the connector mating plane surfaces always support the devices and connections CAUTION Do no...

Page 37: ...on devices in the foam lined storage case when not in use Never store connectors loose in a box or in a desk or bench drawer This is the most common cause of connector damage during storage Keep connectors clean Do not touch mating plane surfaces Natural skin oils and microscopic particles of dirt are easily transferred to a connector interface and are very difficult to remove Do not set connector...

Page 38: ...85050B Use Maintenance and Care of the Devices Handling and Storage 3 18 ...

Page 39: ...85050B 4 1 4 Performance Verification ...

Page 40: ...es are carefully modeled to give very accurate electrical representation The mechanical measurements are then traced to NIST through various plug and ring gages and other mechanical measurements 2 Each calibration device is electrically tested on this system For the initial before sale testing of the calibration devices Agilent includes the test measurement uncertainty as a guardband to guarantee ...

Page 41: ...ologies Refer to Contacting Agilent on page 5 4 How Often to Recertify The suggested initial interval for recertification is 12 months or sooner The actual need for recertification depends on the use of the kit After reviewing the results of the initial recertification you may establish a different recertification interval that reflects the usage and wear of the kit NOTE The recertification interv...

Page 42: ...4 4 85050B Performance Verification Recertification ...

Page 43: ...85050B 5 1 5 Troubleshooting ...

Page 44: ...ooting Troubleshooting Process Troubleshooting Process If you suspect a bad calibration or if your network analyzer does not pass performance verification follow the steps in Figure 5 1 Figure 5 1 Troubleshooting Flowchart ...

Page 45: ...he title hyperlink for the document PDF you want to view If you need additional information see Contacting Agilent on page 4 Returning a Kit or Device to Agilent If your kit or device requires service contact Agilent Technologies for information on where to send it See Contacting Agilent on page 4 for contact information Include a service tag located near the end of this manual on which you provid...

Page 46: ...e on the Web at www agilent com find assist If you do not have access to the Internet please contact your Agilent field engineer NOTE In any correspondence or telephone conversation refer to the Agilent product by its model number and full serial number With this information the Agilent representative can determine whether your product is still within its warranty period ...

Page 47: ...85050B 6 1 6 Replaceable Parts ...

Page 48: ... 1 00909 60008 7 mm sliding load 1 85050 60014 7 mm broadband load 1 85050 60006 7 mm short 1 85050 80007 7 mm open 1 85052 80010 7 mm center conductor collets 1 85050 20001 Wrenches 7 mm connector collet extractor tool 1 5060 0370 3 4 in 135 N cm 12 in lb torque wrench 1 8710 1766 Miscellaneous Items 7 mm connector gage seta a Gage set includes gage gage master aligning pin and two centering bead...

Page 49: ...t Agilent Part Number Anhydrous isopropyl alcohol 92 pure a a Agilent can no longer safely ship isopropyl alcohol so customers should purchase it locally Cleaning swabs 100 9301 1243 Grounding wrist strap 1 9300 1367 5 ft grounding cord for wrist strap 1 9300 0980 2 ft by 4 ft conductive table mat with 15 ft grounding wire 1 9300 0797 ESD heel strap for conductive floors 1 9300 1308 ...

Page 50: ...6 4 85050B Replaceable Parts Introduction ...

Page 51: ...85050B A 1 A Standard Definitions ...

Page 52: ...s Web page at http na tm agilent com pna caldefs stddefs html For a detailed discussion of calibration kits refer to the Agilent Application Note Specifying Calibration Standards and Kits for Agilent Vector Network Analyzers This application note covers calibration standard definitions calibration kit content and its structure requirements for Agilent vector network analyzers It also provides some...

Page 53: ...tics mechanical 2 3 class assignments downloading from Agilent Web site A 2 cleaning connectors 3 4 cleaning supplies 1 3 compressed air for cleaning 3 4 connections 3 2 3 13 ESD protection 3 2 3 13 final 3 13 preliminary 3 13 separating 3 16 sliding load 3 15 using torque wrench 3 13 connector cleaning 3 4 damage 3 3 defects 3 3 gage accuracy 3 6 dial 3 7 handling 3 8 3 11 reading 3 7 use of 3 6 ...

Page 54: ... 6 male connectors 3 8 sliding loads 3 11 to determine pin depth 3 6 general information 1 1 H handling 3 17 how often to calibrate 1 5 humidity specifications 2 2 I incoming inspection 1 4 information troubleshooting 5 2 inspection damage 3 3 defects 3 3 incoming 1 4 mating plane surfaces 3 3 visual 3 3 isopropyl alcohol as cleaning solvent 3 4 precautions for use of 3 4 K kit contents 1 2 6 3 dr...

Page 55: ...able parts 6 2 drawing of 6 3 report calibration 4 3 requirements environmental 2 2 return kit or device to Agilent 1 4 5 3 return loss specifications 2 6 S separating connections 3 16 serial numbers 1 4 devices 1 4 recording 1 4 service 5 3 service tag 4 3 5 3 shorts 1 2 part numbers 6 2 specifications 2 6 sliding load connections 3 15 gaging 3 11 in kit contents 1 3 pin depth adjusting 3 11 spec...

Page 56: ...vice specifications 4 2 4 3 troubleshooting flowchart 5 2 U user s and service guide part number 6 2 V verification performance 4 3 temperature 2 2 visual inspection 3 3 W warranty documentation 2 wear connector 3 3 affect on electrical performance 3 3 when to calibrate 1 5 wrench open end 1 3 3 14 3 16 proper positioning of 3 14 torque 1 3 3 13 3 14 precautions for use of 3 14 proper use of 3 14 ...

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