Keysight 85052D 3.5 mm Economy Calibration Kit
Contents
1. IMPORTANT Avoid unnecessary handling of the devices during calibration because your fingers are a heat source 2 2 85052D User s and Service Guide Specifications Mechanical Characteristics Mechanical Characteristics Mechanical characteristics such as center conductor protrusion and pin depth are not performance specifications They are however important supplemental characteristics related to electrical performance Keysight Technologies verifies the mechanical characteristics of the devices in the kit with special gaging processes and electrical testing This ensures that the device connectors do not exhibit any center conductor protrusion or improper pin depth when the kit leaves the factory Gaging Connectors 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 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 either protruding or recessed Protrusion is the condition in which the center conductor extends beyond the outer conductor mating plane This condition will indicate a positive value on the connector gage Recession is the condition in which the center conductor is set back from the outer conductor mating plane This condition will indic2. 2 Inspect and clean the gage gage master and device to be gaged Refer to Visual Inspection and Cleaning Connectors earlier in this chapter 3 Zero the connector gage refer to Figure 3 2 a While holding the gage by the barrel and without turning the gage or the device connect the gage to the gage master by interconnecting the male and female connectors Connect the nut finger tight Do not overtighten b Using an open end wrench to keep the device body from rotating use the torque wrench included in the kit to tighten the connecting nut to the specified torque Refer to Final Connection Using a Torque Wrench on page 3 10 for additional information c As you watch the gage pointer gently tap the barrel of the gage to settle the reading The gage pointer should line up exactly with the zero mark on the gage If not adjust the zero set knob until the gage pointer lines up exactly with the zero mark d Remove the gage master 4 Gage the device connector refer to Figure 3 2 a While holding the gage by the barrel and without turning the gage or the device connect the gage to the device by interconnecting the male and female connectors Connect the nut finger tight Do not overtighten b Using an open end wrench to keep the device body from rotating use the torque wrench included in the kit to tighten the connecting nut to the specified torque Refer to Final Connection Using a Torque Wrench on
3. 00 cc cece eee eee e eee ees 1 7 Preventive Maintenance 0 e Re e Re R R ene eee nnn RRR EED 1 7 When to Calibrate seieren Sie ok on ate T vem cde ideale A EATER weet d Aba ZA A ENE dees 1 8 2 Specifications Environmental Requirements 00 0 cece cece eee eet enn e nett ene tenn eeens 2 2 Temperature What to Watch Out For 0 16 c ccc ccc cece nce nee eee n tenet e eee en ee eneees 2 2 Mechanical Characteristics 00 ccc ccc ccc nen een een e een eee nee ene e ented tenes 2 3 Pin Depthir sureres aen E oat harden ceils ener Po aor a a ET 2 3 Electrical Specifications siciscsicadscancccnena cages soa Sed We Rah RR A AEE se aed RR E ALE 2 5 Certifications mic endo 9 Kaa 0 N Ra E K R Ka E E AER te a oe A ead LL aN 2 6 3 Use Maintenance and Care of the Devices Electrostatic Discharge a e or 40 2 SE ch e a a E bo Rare wien aon eee Sie aoe Pe aoa 3 2 Visual INspeCtlOn oiniey cada he teper weedy awevnis 4G saiewasgeangaeddwerasevandeeeadda vane dares 3 3 Look for Obvious Defects and Damage First 0 00 e cece earner rner 3 3 Inspect the Mating Plane Surfaces 200 c cece cect cece ete ararnar 3 3 Inspect Female Connectors n nen ee nee ene e deeb ete beeen a eenaes 3 3 Cleaning Connectors s 52 000 ee pivayawnss iet iene nin EE EEE eek deed gods dav aeeaa dave eae beax 3 4 Gaging Connectors 20 00 c cece nen RR N RRR EAE RRR T a R R R 3 6 Connector Gage Accuracy
4. 20 00 c cece ent eee tenet t een eee eeeeneees 3 6 When to Gage Connectors 0c cece etn EEEE EEEE eee tne nee eens eneees 3 7 Gaging Procedutes sisirin esere taneria ar aan nia oes argung won eoeobies exh ep RET ESS ta E REAR 3 8 GOMMECHONS esccie oc a erect iba cts ah aoe ee es aces ven Gan ee ey actus eens oa A E coe eee ae ee 3 10 How to Make a Connection 20 0 cece cece nent eee e eee e te eee teats 3 10 How to Separate a Connection 0 cee tenet ene en nee ete ene e ene e en eeens 3 12 Handling and Storage 0 ccc cece eee eect ete eden nEn 3 12 4 Performance Verification Introduction 25 cdicedehn dadiendoeh adh sieud al deel e he dd uh ao coal wibeiedaaldee ae Gal eaaa 4 2 How Keysight Verifies the Devices in Your Kit 0 0 cc ccc cece ence tence nee nee n ee eneees 4 2 Recertification x azc TE ota aes arg davon Wa Sides oe onc a a vaiie ets ALAT dead baa dh beet ada 4 3 How Often to Recertify 0 0 een tenn eee een nent e eaten een eenaes 4 3 Where to Send a Kit for Recertification 0 00 e nee en ne eeens 4 3 5 Troubleshooting Troubleshooting Process 0 0c cece ect eee naaraana 5 2 85052D User s and Service Guide Contents 5 Contents Where to Look for More Information 0 0 c cece ccc cence nee n een ee ene ented ee ene tenes 5 3 Returning a Kit or Device to Kevaight 2 00 c ccc eee cee ee eet e eee e ete eeeenees 5 4 Contacting Keysight 00 00 ccc
5. Cleaning Connectors WARNING Keep isopropyl alcohol away from heat sparks 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 thoroughly after handling In case of spill soak up with sand or earth Flush spill area with water Dispose of isopropyl alcohol in accordance with all applicable federal state and local environmental regulations Use a lint free swab or cleaning cloth moistened with isopropyl alcohol to remove any dirt or stubborn contaminants on a connector that cannot be removed with compressed air or nitrogen Refer to Table 6 2 on page 6 3 for a part number for cleaning swabs a Apply a small amount of isopropyl alcohol to a lint free cleaning swab b Clean the connector threads c Let the alcohol evaporate then blow the threads dry with a gentle stream of clean low pressure compressed air or nitrogen Always completely dry a connector before you reassemble or use it 3 Clean the Mating Plane Surfaces a Apply a small amount of isopropyl alcohol to a lint free cleaning swab b Clean the center and outer conductor mating plane surfaces Refer to Figure 2 1 on page 2
6. Contact information is listed on page 5 5 Refer to Returning a Kit or Device to Keysight on page 5 4 for details on sending your kit 85052D User s and Service Guide 4 3 Performance Verification Recertification 4 4 85052D User s and Service Guide 5 Troubleshooting 85052D User s and Service Guide 5 1 Troubleshooting 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 EVERYTHING pk54c 5 2 Troubleshooting Flowchart START BAD CAL SUSPECTED BAD MEASUREMENT r Lda DEVICES CLEAN DEVICES CLEANED AND AND GAGE PROPERLY GAGED PROPER TORQUE 3 5 mm DEVICES TORQUE TO Bin Ilb 90N cm CORRECT LOAD CORRECT CAL CONSTANTS LOADED CAL CONSTANTS REPLACE DEVICE S UNMARRED RECERTIFY KIT 85052D User s and Service Guide Troubleshooting Where to Look for More Information Where to Look for More Information This manual contains limited information about network analyzer system operation For detailed information on using a VNA ENA or PNA series network analyzer refer to the appropriate user guide or online Help To view the ENA or PNA online Help press the Help key on the front panel of the network analyzer e To view an online VNA user guide use the following steps 1 Go to www keysight com 2 Enter your ana
7. recession 2 3 typical values 2 4 precision adapters 1 2 part numbers 6 2 precision slotless connectors 1 6 preventive maintenance 1 7 procedures cleaning 3 4 gaging 3 8 zeroing 3 8 protective end caps part numbers 6 2 protrusion pin depth 2 3 recertification how to order 4 3 interval 4 3 locations 4 3 services included 4 3 recession pin depth 2 3 regulations environmental 2 2 3 5 replaceable parts 6 2 6 3 drawing of 6 4 6 5 report calibration 4 3 requirements environmental 2 2 return kit or device to Keysight 1 4 5 4 return loss specifications 2 5 S separating connections 3 12 serial numbers 1 4 devices 1 4 recording 1 4 service 5 4 service tag 4 3 5 4 shorts 1 2 part numbers 6 2 specifications 2 5 specifications 2 2 adapters 2 5 broadband loads 2 5 certification of 2 6 deviation from nominal phase 2 5 device 2 5 electrical 2 5 environmental 2 2 frequency 2 5 humidity operating 2 2 storage 2 2 offset opens and shorts 2 5 return loss 2 5 sliding loads 2 5 temperature 2 2 85052D User s and Service Guide Index torque wrench 3 10 traceability 4 2 4 3 standard definitions downloading from Keysight Web site A 2 standards international 2 6 National Institute of Standards and Technology NIST 2 6 4 2 static discharge 3 2 electricity 3 2 storage 3 12 storage case part number 6 2 strap heel and wrist par
8. the Keysight representative can determine whether your product is still within its warranty period 85052D User s and Service Guide 5 5 Troubleshooting Contacting Keysight 5 6 85052D User s and Service Guide 6 Replaceable Parts 85052D User s and Service Guide Replaceable Parts Introduction Introduction Table 6 1 lists the replacement part numbers for the 85052D calibration kit Table 6 2 lists the replacement part numbers for items not included in the calibration kit that are either required or recommended for successful operation of the kit To order a listed part note the description the part number and the quantity desired Telephone or send your order to Keysight Technologies See Contacting Keysight on page 5 5 for contact information Table 6 1 Replaceable Parts for the 85052D Calibration Kit Description Oty per Keysight Part kit Number Calibration Devices 3 5 mm b 00902 60005 Broadband load m 1 f 00902 60003 00902 60006 Broadband load f 1 S 00902 60004 Offset short m 1 85052 60006 Offset short f 1 85052 60007 Offset open m 1 85052 60008 Offset open f 1 85052 60009 Adapters 3 5 mm f to f 1 85052 60012 m to f 1 85052 60013 m to m 1 85052 60014 Protective End Caps for Connectors As For 3 5 mm f connectors 1401 0202 Required As For 3 5 mm m connectors l 1401 020
9. 3 When cleaning a female connector 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 85052D User s and Service Guide 3 5 Use Maintenance and Care of the Devices Gaging Connectors Gaging Connectors The gages available from Keysight Technologies are intended for preventive maintenance and troubleshooting purposes only They are effective in detecting excessive center conductor protrusion or recession and conductor damage on DUTs test accessories and the calibration kit devices Do not use the gages for precise pin depth measurements See Table 6 2 on page 6 3 for part number information Connector Gage Accuracy The connector gages are only capable of performing coarse measurements They do not provide the degree of accuracy necessary to precisely measure the pin depth of the kit devices This is partially due to the repeatability uncertainties that are associated with the measurement Only the factory through special gaging processes and electrical testing can accurately verify the mechanical characteristics of the devices With proper technique the gages are useful
10. Always compare the measured value with the observed pin depth limits which account for measurement uncertainties in Table 2 2 on page 2 4 to evaluate the condition of device connectors 3 6 85052D User s and Service Guide Use Maintenance and Care of the Devices Gaging Connectors When to Gage Connectors Gage a connector at the following times e Prior to using a device for the first time record the pin depth measurement so that it can be compared with future readings It will serve as a good troubleshooting tool when you suspect damage may have occurred to the device e lP either visual inspection or electrical performance suggests that the connector interface may be out of typical range due to wear or damage for example e Ifa calibration device is used by someone else or on another system or piece of equipment e Initially after every 100 connections and after that as often as experience indicates 85052D User s and Service Guide 3 7 Use Maintenance and Care of the Devices Gaging Connectors Gaging Procedures Gaging 3 5 mm Connectors NOTE Always hold a connector gage by the gage barrel below the dial indicator This gives the best stability and improves measurement accuracy Cradling the gage in your hand or holding it by the dial applies stress to the gage plunger mechanism through the dial indicator housing 1 Select the proper gage for your connector Refer to Table 6 1 on page 6 2 for gage part numbers
11. in detecting gross pin depth errors on device connectors To achieve maximum accuracy random errors must be reduced by taking the average of at least 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 The information in Table 2 2 on page 2 4 assumes new gages and gage masters Therefore these systematic errors were not included in the uncertainty analysis As the gages undergo more use the systematic errors can become more significant in the accuracy of the measurement The measurement uncertainties in Table 2 2 are primarily a function of the assembly materials and design and the unique interaction each device type has with the gage Therefore these uncertainties can vary among the different devices For example note the difference between the uncertainties of the opens and shorts The observed pin depth limits in Table 2 2 add these uncertainties to the typical factory pin depth values to provide practical limits that can be referenced when using the gages See Pin Depth on page 2 3 Refer to Kit Contents on page 1 2 for more information on the design of the calibration devices in the kit NOTE When measuring pin depth the measured value resultant average of three or more measurements contains measurement uncertainty and is not necessarily the true value
12. m pin depth gage 1 11752 60106 3 5 mm slotless connector contact repair kit 1 85052 60049 a Keysight can no longer safely ship isopropyl alcohol so customers should purchase it locally b Refer to Clarifying the Terminology of a Connector Interface on page 1 7 c All female connectors on the precision devices in this kit are slotless connectors Refer to Inspect Female Connectors on page 3 3 85052D User s and Service Guide 6 3 Replaceable Parts Introduction Figure 6 1 Replaceable Parts for the 85052D Calibration Kit Male to Male Female to Female Male to Female Adapter Adapter Adapter K KX u RAE K xv SSI a eS Female Male Broadband Load Broadband Load Male Male Female Female Offset Short Offset Open 7 mm Open End Wrench 5 16 Inch Torque Wrench 8 in lb 90 N cm pk501b 6 4 85052D User s and Service Guide Figure 6 2 Replaceable Parts for the 85052D Calibration Kit Male Connector Gage 0 0 Centering Beads Male Gage Master Not Shown Storage case Protective end caps User s and Service Guide Note Gages are not included in the kit 85052D User s and Service Guide Replaceable Parts Introduction Female Connector Gage Female Gage Master pk501d Replaceable Parts Introduction 6 6 85052D User s and Service Guide A Standard Definitions 85052D User s and Service Guide A 1 Standard Definitions Class Assig
13. mm 0 0041 to 0 0041 mm 0 0016 to 0 0295 mm 0 0001 to 0 0010 in 0 00016 to 0 00016 in 0 0006 to 0 00116 in Adapter 0 0025 to 0 0254 mm 0 0041 to 0 0041 mm 0 0016 to 0 0295 mm 0 0001 to 0 0010 in 0 00016 to 0 00016 in 0 0006 to 0 00116 in a Approximately 2 sigma to 2 sigma of gage uncertainty based on studies done at the factory according to recommended procedures b Observed pin depth limits are the range of observation limits seen on the gage reading due to measurement uncertainty The depth could still be within specifications 2 4 85052D User s and Service Guide Electrical Specifications Specifications Electrical Specifications The electrical specifications in Table 2 3 apply to the devices in your calibration kit when connected with a Keysight precision interface Table 2 3 Electrical Specifications for 85052D 3 5 mm Devices Device Specification Frequency GHz Broadband loads Return loss gt 46 dB p lt 0 00501 dc to lt 2 male and female Return loss gt 44 dB p lt 0 00631 gt 2to lt 3 Return loss gt 38 dB p lt 0 01259 gt 3to lt 8 Return loss gt 36 dB p lt 0 01585 gt 8to lt 20 Return loss gt 34 dB p lt 0 01995 gt 20 to lt 26 5 Offset opens 0 65 deviation from nominal dc to lt 3 male and female 1 20 deviation from nominal gt 3to lt 8 2 00 deviation from nominal gt 8to lt 20 2 00 deviation from nominal gt 20
14. page 3 10 for additional information c Gently tap the barrel of the gage with your finger to settle the gage reading d Read the gage indicator dial Read only the black signs not the red signs For maximum accuracy measure the connector a minimum of three times and take an average of the readings After each measurement rotate the gage a quarter turn to reduce measurement variations that result from the gage or the connector face not being exactly perpendicular to the center axis e Compare the average reading with the observed pin depth limits in Table 2 2 on page 2 4 3 8 85052D User s and Service Guide Use Maintenance and Care of the Devices Gaging Connectors Figure 3 2 Gaging 3 5 mm Connectors Note Although male devices are shown in this illustration the procedure is essentially the same for female devices Zero the Connector Gage Connect the gage to the gage master Torque the connecting nut Gently tap the gage barrel to settle the reading Using the zero set knob adjust the gage pointer to line up exactly with the zero mark Remove the gage master Gage Barrel HII gt inl Gage Master Connecting Nut Zero Set Knob Gage the Device Connector Connect the gage to the device being measured Torque the connecting nut Gently tap the gage barrel to settle the reading Read recession or protrusion from the gage Remove the device Repeat two addit
15. to lt 26 5 Offset shorts 0 50 deviation from nominal dc to lt 3 male and female 1 00 deviation from nominal gt 3to lt 8 1 75 deviation from nominal gt 8to lt 20 1 75 deviation from nominal gt 20 to lt 26 5 Adapters Return loss gt 30 dB p lt 0 03162 dc to lt 8 Return loss gt 28 dB p lt 0 03981 gt 8to lt 18 Return loss gt 26 dB p lt 0 05012 gt 18 to lt 26 5 a The specifications for the opens and shorts are given as allowed deviation from the nominal model as defined in the standard definitions b The offset delay value is 94 75 psec 85052D User s and Service Guide 2 5 Specifications Electrical Specifications Certification Keysight Technologies certifies that this product met its published specifications at the time of shipment from the factory Keysight 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 Keysight Verifies the Devices in Your Kit on page 4 2 for more information 2 6 85052D User s and Service Guide 3 Use Maintenance and Care of the Devices 85052D User s and Service Guide Use Maintenance and Care of the Devices Electrostatic Discharge Electrostatic Discharge Protection against electrostatic di
16. 8 Required Wrench 5 16 in 90 N cm 8 in Ib torque wrench 1 8710 1765 7 mm open end wrench 1 8710 1761 Calibration Kit Storage Case Storage box assembly 1 85052 60029 6 2 85052D User s and Service Guide Replaceable Parts Introduction Table 6 1 Replaceable Parts for the 85052D Calibration Kit Description Oty per Keysight Part kit Number Box without foam pads 1 5180 7862 Foam pad for lid of case 1 5180 8428 Foam pad for body of case 1 85052 80026 Miscellaneous Items User s and service guide 1 85052 90079 a See Clarifying the Terminology of a Connector Interface on page 1 7 b Broadband load has replaced lowband load c Part numbers in italic typeface are for production assemblies and cannot be ordered by customers Both the replacement part number and the production part number are interchangeable and have identical performance Table 6 2 Items Not Included in the Calibration Kit Description Qty Keysight Part Number ESD Protection Devices 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 1 9300 1308 Connector Cleaning Supplies Anhydrous isopropyl alcohol gt 92 pure Foam tipped cleaning swabs 100 9301 1243 Miscellaneous Items 3 5 mm f pin depth gage 1 11752 60105 3 5 mm
17. Keysight 85052D 3 5 mm Economy Calibration Kit User s and Service KEYSIGHT Guide TECHNOLOGIES NOTICE This document contains references to Agilent Technologies Agilent s former Test and Measurement business has become Keysight Technologies For more information goto www keysight com KEYSIGHT TECHNOLOGIES Notices Keysight Technologies 1994 2014 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or transla tion into a foreign language without prior agreement and written consent from Key sight Technologies as governed by United States and international copyright laws Manual Part Number 85052 90079 Edition August 2014 Printed in Malaysia Keysight Technologies 1400 Fountaingrove Parkway Santa Rosa CA 95403 Warranty The material contained in this docu ment is provided as is and is sub ject to being changed without notice in future editions Further to the max imum extent permitted by applicable law Keysight disclaims all warran ties either express or implied with regard to this manual and any infor mation contained herein including but not limited to the implied warran ties of merchantability and fitness for a particular purpose Keysight shall not be liable for errors or for inciden tal or consequential damages in con nection with the furnishing use or performance of this document or of any info
18. ate a negative value on the connector gage Figure 2 1 Connector Pin Depth Male Female Outer Conductor Center Conductor Male Pin Depth Female Pin Depth Outer Conductor Mating Plane Outer Conductor Mating Plane ph51b 85052D User s and Service Guide 2 3 Specifications Mechanical Characteristics The pin depth value of each calibration device in the kit is not specified but is an important mechanical parameter The electrical performance of the device depends to some extent on its pin depth The electrical specifications for each device in the kit take into account the effect of pin depth on the device s performance Table 2 2 lists the typical pin depths and measurement uncertainties and provides observed pin depth limits for the devices in the kit If the pin depth of a device does not measure within the observed pin depth limits it may be an indication that the device fails to meet electrical specifications Refer to Figure 2 1 for a visual representation of proper pin depth slightly recessed Table 2 2 Pin Depth Limits Device Typical Pin Depth Measurement Uncertainty Observed Pin Depth Limits Opens 0 to 0 0127 mm 0 0064 to 0 0064 mm 0 0064 to 0 0191 mm 0 to 0 00050 in 0 00025 to 0 00025 in 0 00025 to 0 00075 in Shorts 0 to 0 0127 mm 0 0041 to 0 0041 mm 0 0041 to 0 0168 mm 0 to 0 00050 in 0 00016 to 0 00016 in 0 00016 to 0 00066 in Fixed loads 0 0025 to 0 0254
19. ction The performance of your calibration kit can only be verified by returning the kit to Keysight Technologies for recertification The equipment required to verify the specifications of the devices in the kit has been specially manufactured and is not commercially available How Keysight Verifies the Devices in Your Kit Keysight verifies the specifications of these devices as follows 1 The residual microwave error terms of the test system are verified with precision airlines and shorts that are directly traced to the National Institute of Standards and Technology NIST The airline and short characteristics are developed from mechanical measurements The mechanical measurements and material properties 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 Each calibration device is electrically tested on this system For the initial before sale testing of the calibration devices Keysight includes the test measurement uncertainty as a guardband to guarantee each device meets the published specification For recertifications after sale no guardband is used and the measured data is compared directly with the specification to determine the pass or fail status The measurement uncertainty for each device is however recorded in the calibration report that accompanies recertified kits These two step
20. ction Any give at all in the handle is sufficient torque How to Separate a Connection To avoid lateral bending force on the connector mating plane surfaces always support the devices and connections CAUTION Do not turn the device body Only turn the connector nut Damage to the center conductor can occur if the device body is twisted 1 Use an open end wrench to prevent the device body from turning Use another open end wrench to loosen the connecting nut Complete the separation by hand turning only the connecting nut Ay T Pull the connectors straight apart without twisting rocking or bending either of the connectors Handling and Storage e Install the protective end caps and store the calibration devices in the foam lined storage case when not in use e 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 e Keep connectors clean e 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 connectors contact end down on a hard surface The plating and the mating plane surfaces can be damaged if the interface comes in contact with any hard surface 3 12 85052D User s and Service Guide 4 Performance Verification 85052D User s and Service Guide 4 1 Performance Verification Introduction Introdu
21. e affect electrical or mechanical performance If a connector shows deep scratches or dents particles clinging to the mating plane surfaces or uneven wear clean and inspect it again Devices with damaged connectors should be discarded Determine the cause of damage before connecting a new undamaged connector in the same configuration Inspect Female Connectors Inspect the contact fingers in the female center conductor carefully These can be bent or broken and damage to them is not always easy to see A connector with damaged contact fingers will not make good electrical contact and must be replaced 85052D User s and Service Guide 3 3 Use Maintenance and Care of the Devices Cleaning Connectors NOTE This is particularly important when mating nonprecision to precision devices The female 3 5 mm connectors in this calibration kit are metrology grade precision slotless connectors PSC Precision slotless connectors are used to improve accuracy With PSCs on test ports and standards the accuracy achieved when measuring at 50 dB return loss levels is comparable to using conventional slotted connectors measuring devices having only 30 dB return loss This represents an accuracy improvement of about 10 times Conventional female center conductors are slotted and when mated are flared by the male pin Because physical dimensions determine connector impedance this change in physical dimension affects electrical performance making it ver
22. eference device and note its responses Periodically remeasure the device and note any changes in its corrected response which can be attributed to the test system With experience you will be able to see changes in the reference responses that indicate a need to perform the measurement calibration again 1 8 85052D User s and Service Guide 2 Specifications 85052D User s and Service Guide 2 1 Specifications Environmental Requirements Environmental Requirements Table 2 1 Environmental Requirements Parameter Limits Temperature Operating 20 C to 26 C Storage 40 C to 75 C Error corrected range 1 C of measurement calibration temperature Relative humidity Type tested 0 to 95 at 40 C non condensing a The temperature range over which the calibration standards maintain conformance to their specifications b The allowable network analyzer ambient temperature drift during measurement calibration and during measurements when the network analyzer error correction is turned on Also the range over which the network analyzer maintains its specified performance while correction is turned on Temperature What to Watch Out For Changes in temperature can affect electrical characteristics Therefore the operating temperature is a critical factor in performance During a measurement calibration the temperature of the calibration devices must be stable and within the range shown in Table 2 1
23. f the cable connector 3 Connect the other end of the cable to the test port 4 Remove the short from the cable Figure 3 1 shows a typical ESD protection setup using a grounded mat and wrist strap Refer to Table 6 2 on page 6 3 for information on ordering supplies for ESD protection Figure 3 1 ESD Protection Setup gt N_ Wrist Strap A 3 Wire line power cord with proper connection to ground must be used for ESD protection Anti Static Mat 3 2 85052D User s and Service Guide Use Maintenance and Care of the Devices Visual Inspection Visual Inspection Visual inspection and if necessary cleaning should be done every time a connection is made Metal particles from the connector threads may fall into the connector when it is disconnected One connection made with a dirty or damaged connector can damage both connectors beyond repair Magnification is helpful when inspecting connectors but it is not required and may actually be misleading Defects and damage that cannot be seen without magnification generally have no effect on electrical or mechanical performance Magnification is of great use in analyzing the nature and cause of damage and in cleaning connectors but it is not required for inspection Look for Obvious Defects and Damage First Examine the connectors first for obvious defects and damage badly worn plating on the connector interface deformed threads or bent broken or misaligned cen
24. haracteristic of metrology grade connectors is direct traceability to national measurement standards through their well defined mechanical dimensions Conventional female center conductors are slotted When mated the female center conductor is flared by the male pin Because physical dimensions determine connector impedance electrical characteristics of the female connector and connection pair are dependent upon the mechanical dimensions of the male pin While connectors are used in pairs their male and female halves are always specified separately as part of a standard instrument or device under test Because of these facts making precision measurements with the conventional slotted connector is very difficult and establishing a direct traceability path to primary dimensional standards is nearly impossible The precision slotless connector was developed to eliminate these problems All PSCs are female A PSC incorporates a center conductor with a solid cylindrical shell that defines the outside diameter of the female center pin Its outside diameter and therefore the impedance in its region does not change The inner part provides an internal contact that flexes to accept the allowed range of male pin diameters The calibration of a network analyzer having a conventional slotted female connector on the test port remains valid only when the device under test and all calibration standards have identical male pin diameters For this reason PSC te
25. he like that 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 A WARNING notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly per formed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated condi tions are fully understood and met Contents 1 General Information Calibration Kit OvervieW 2 0 00 ccc nen nee nent n nent enn teen n nent en eens 1 2 Kit Contents Z ce fees e nS este a a ea ai L ne eee eee 1 2 Calibration Definitions 0 0 ccc ccc nn teen araroa EEEE 1 2 Equipment Required but Not Supplied 0 0 c cece ccc cece cece cnet n eee een een eennes 1 3 Incoming INSPECHON 66 bade d a ATN os eS A a KaR eh d EEE ON eee dh ee goed R E eee oh E Shee 1 4 Recording the Device Serial Numbers 00 002 c cee ee cece eee eet erreneren ena 1 4 Calibration Kits Documented in This Manual 0 0 0 cece ccc eee n eet eee e rreren 1 5 Calibration Kit History 0 0 ccc nee nee ne een RRR RRR KRK Eai 1 5 85052D Kits with Serial Prefix 202717 1 5 Precision Slotless Connectors 0 c ccc ccc rnrn rrenen rennarar rreren e eben rreren 1 6 Clarifying the Terminology of a Connector Interface
26. ional times and average the three readings Gage Barrel Device Connecting Nut Being Measured ph71a 85052D User s and Service Guide 3 9 Use Maintenance and Care of the Devices Connections Connections Good connections require a skilled operator The most common cause of measurement error is bad connections The following procedures illustrate how to make good connections How to Make a Connection Preliminary Connection 1 Ground yourself and all devices Wear a grounded wrist strap and work on a grounded conductive table mat Refer to Electrostatic Discharge on page 3 2 for ESD precautions 2 Visually inspect the connectors Refer to Visual Inspection on page 3 3 3 If necessary clean the connectors Refer to Cleaning Connectors on page 3 4 4 Use a connector gage to verify that all center conductors are within the observed pin depth values in Table 2 2 on page 2 4 Refer to Gaging Connectors on page 3 6 5 Carefully align the connectors The male connector center pin must slip concentrically into the contact finger of the female connector 6 Push the connectors straight together and tighten the connector nut finger tight CAUTION Do not turn the device body Only turn the connector nut Damage to the center conductor can occur if the device body is twisted Do not twist or screw the connectors together As the center conductors mate there is usually a slight resistance 7 The p
27. l numbers will prevent confusing the devices in this kit with similar devices from other kits The adapters included in the kit are for measurement convenience only and are not serialized Table 1 1 Serial Number Record for the 85052D Device Serial Number Calibration kit Broadband load m Broadband load f Open m Open f Short m Short f 1 4 85052D User s and Service Guide General Information Calibration Kits Documented in This Manual Calibration Kits Documented in This Manual This manual applies to any 8552B calibration kit with serial number prefix 3106A If your calibration kit has a different serial number prefix refer to the next section for information on how this manual applies Calibration Kit History This section describes calibration kits with serial number prefixes lower that the ones listed on the title page 85052D Kits with Serial Prefix 3027A These calibration kits did not have a calibration constants disk to support the Keysight 8510C network analyzer The part numbers provided in this manual are the recommended replacement parts for these kits The devices in these kits should meet the specifications published in this manual 85052D User s and Service Guide 1 5 General Information Precision Slotless Connectors Precision Slotless Connectors The female 3 5 mm connectors in this calibration kit are metrology grade precision slotless connectors PSC A c
28. lyzer model number Ex N5242A in the Search box and click Search 3 Under the heading Manuals amp Guides click on the title hyperlink for the document PDF you want to view If you need additional information see Contacting Keysight on page 5 5 85052D User s and Service Guide 5 3 Troubleshooting Returning a Kit or Device to Keysight Returning a Kit or Device to Keysight If your kit or device requires service contact Keysight Technologies for information on where to send it See Contacting Keysight on page 5 5 for contact information Include a service tag located near the end of this manual on which you provide the following information 5 4 your company name and address a technical contact person within your company and the person s complete telephone number the model number and serial number of the kit the part number and serial number of each device the type of service required a detailed description of the problem and how the device was being used when the problem occurred such as calibration or measurement 85052D User s and Service Guide Troubleshooting Contacting Keysight Contacting Keysight Assistance with test and measurements needs and information on finding a local Keysight office are available on the Web at www keysight com find assist NOTE In any correspondence or telephone conversation refer to the Keysight product by its model number and full serial number With this information
29. n nee eee REEERE EEEE 5 5 6 Replaceable Parts Iei Ta TTT 6 2 A Standard Definitions Class Assignments and Standard Definitions Values are Available on the Web nnnnnnnnanannna aa A 2 Contents 6 85052D User s and Service Guide 1 General Information 85052D User s and Service Guide General Information Calibration Kit Overview Calibration Kit Overview The Keysight 85052D 3 5 mm calibration kit is used to calibrate Keysight network analyzers up to 26 5 GHz for measurements of components with 3 5 mm connectors Kit Contents The 85052D calibration kit includes the following items e user s and service guide offset opens and shorts and broadband loads e three 3 5 mm adapters 5 16 in 90 N cm 8 in lb torque wrench 7mm open end wrench The adapters are primarily intended for use in measuring non insertable devices but can also be used as a connector saver Refer to Chapter 6 for a complete list of kit contents and their associated part numbers Broadband Loads The broadband loads are metrology grade terminations that have been optimized for performance up to 26 5 GHz The rugged internal structure provides for highly repeatable connections A distributed resistive element on sapphire provides excellent stability and return loss Offset Opens and Shorts The offset opens and shorts are built from parts that are machined to the current state of the art in precision machining The offset short s inne
30. nectors 3 3 incoming 1 4 mating plane surfaces 3 3 visual 3 3 isopropyl alcohol as Cleaning solvent 3 5 precautions for use of 3 5 K Keysight Technologies application note A 2 contacting 5 4 5 5 kit contents 1 2 6 4 6 5 drawing of 6 4 6 5 overview 1 2 limits pin depth 2 4 loads broadband 1 2 broadband part numbers 6 2 M maintenance 3 2 of devices 1 7 preventive 1 7 making connections 3 10 ESD protection 3 2 precautions 3 10 manual part number 6 2 mat Index ii conductive part number 6 3 mating plane surfaces cleaning 3 5 connector 3 5 inspection of 3 3 mechanical characteristics 2 3 affect on electrical performance 2 3 verifying 3 6 modifying calibration kit definition files A 2 N National Institute of Standards and Technology NIST 2 6 4 2 nitrogen for cleaning 3 4 numbers replaceable parts 6 2 6 3 serial 1 4 observed limits pin depth 2 4 offset opens and shorts 1 2 part numbers 6 2 specifications 2 5 open end wrench 1 2 3 12 part number 6 2 opens 1 2 part numbers 6 2 specifications 2 5 ordering parts 6 2 6 3 P part numbers 6 2 of items in kit 6 2 of items not in kit 6 3 parts included in kit 1 2 6 2 not included in kit 6 2 6 3 ordering 6 2 replaceable 6 2 performance verification failure 5 2 pin depth 2 3 affect on electrical performance 2 4 gaging to determine 3 6 observed limits 2 4 3 6 protrusion 2 3
31. nitions 1 2 definitions entering 1 2 frequency 1 8 report 4 3 temperature 2 2 when to perform 1 8 calibration kit contents 1 2 drawing of 6 4 6 5 history 1 5 Keysight Application Note A 2 modifying definition files A 2 overview 1 2 performance how Keysight verifies 4 2 case part number 6 2 certificate of calibration 4 3 certification of device specifications 2 6 characteristics mechanical 2 3 class assignments downloading from Keysight Web site A 2 cleaning connectors 3 4 cleaning supplies 1 3 part number 6 3 compressed air for cleaning 3 4 conductive mat part number 6 3 connections 3 2 3 10 ESD protection 3 2 final 3 10 preliminary 3 10 separating 3 12 using torque wrench 3 10 connector cleaning 3 4 damage 3 3 defects 3 3 female 3 3 gage accuracy 3 6 handling 3 6 3 8 use of 3 6 zeroing 3 6 3 8 gaging 3 6 3 8 to determine pin depth 3 6 when to do 3 7 gender 1 7 mating plane surfaces cleaning 3 5 slotless 1 6 3 4 6 3 terminology 1 7 threads cleaning 3 4 inspecting 3 3 visual inspection 3 3 wear 3 3 affect on electrical performance 3 3 constants calibration See calibration definitions contacting Keysight Technologies 5 4 contents calibration kit 1 2 drawing of 6 4 6 5 incomplete what to do 1 4 D damage caused by electrostatic discharge 3 2 device 3 3 inspecting for 3 3 to connectors 3 3 data recertification 4 3 defective connec
32. nments and Standard Definitions Values are Available on the Web Class Assignments and Standard Definitions Values are Available on the Web Class assignments and standard definitions may change as more accurate model and calibration methods are developed You can download the most recent class assignments and standard definitions from Keysight s Calibration Kit Definitions Web page at http na support keysight com pna caldefs stddefs html For a detailed discussion of calibration kits refer to the Keysight Application Note Specifying Calibration Standards and Kits for Keysight Vector Network Analyzers This application note covers calibration standard definitions calibration kit content and its structure requirements for Keysight vector network analyzers It also provides some examples of how to set up a new calibration kit and how to modify an existing calibration kit definition file To download a free copy go to www keysight com and enter literature number 5989 4840EN in the Search window A 2 85052D User s and Service Guide Index A accuracy connector gage 3 6 adapters 1 2 part numbers 6 2 specifications 2 5 alcohol isopropyl as cleaning solvent 3 5 precautions for use of 3 5 box part number 6 2 broadband loads 1 2 part numbers 6 2 specifications 2 5 C cal kit contents 1 2 history 1 5 verifying 4 2 calibration bad 5 2 certificate of 4 3 constants See calibration definitions defi
33. of cable connectors and adapters is referred to in terms of the center conductor For example a connector or device designated as 1 85 mm f has a 1 85 mm female center conductor 8510 series 872x and 875x ONLY In contrast during a measurement calibration the network analyzer softkey menus label a 1 85 mm calibration device with reference to the sex of the analyzer s test port connector not the calibration device connector For example the label SHORT F refers to the short that is to be connected to the female test port This will be a male short from the calibration kit Table 1 2 Clarifying the Sex of Connectors Examples Terminology Meaning Short f Female short female center conductor Short f Male short male center conductor to be connected to female port A connector gage is referred to in terms of the connector that it measures For instance a male connector gage has a female connector on the gage so that it can measure male devices Preventive Maintenance The best techniques for maintaining the integrity of the devices in the kit include routine visual inspection e cleaning e proper gaging proper connection techniques All of these are described in Chapter 3 Failure to detect and remove dirt or metallic particles on a mating plane surface can degrade repeatability and accuracy and can damage any connector mated to it Improper connections resulting from pin depth values being out of
34. r conductors have a one piece construction common with the shorting plane The construction provides for extremely repeatable connections The offset opens have inner conductors that are supported by a strong low dielectric constant plastic to minimize compensation values Both the opens and shorts are constructed so that the pin depth can be controlled very tightly thereby minimizing phase errors The lengths of the offsets in the opens and shorts are designed so that the difference in phase of their reflection coefficients is approximately 180 degrees at all frequencies Adapters Like the other devices in the kit the adapters are built to very tight tolerances to provide good broadband performance and to ensure stable repeatable connections The adapters are designed so that their nominal electrical lengths are the same which allows them to be used in calibration procedures for non insertable devices Calibration Definitions The calibration kit must be selected and the calibration definitions for the devices in the kit installed in the network analyzer prior to performing a calibration 1 2 85052D User s and Service Guide General Information Calibration Kit Overview The calibration definitions can be e resident within the analyzer manually entered from the front panel Class assignments and standard definitions may change as more accurate model and calibration methods are developed You can download the most recent class a
35. reliminary connection is tight enough when the mating plane surfaces make uniform light contact Do not overtighten this connection A connection in which the outer conductors make gentle contact at all points on both mating surfaces is sufficient Very light finger pressure is enough to accomplish this 8 Make sure the connectors are properly supported Relieve any side pressure on the connection from long or heavy devices or cables Final Connection Using a Torque Wrench Use a torque wrench to make a final connection Table 3 1 provides information about the torque wrench recommended for use with the calibration kit A torque wrench is included in the calibration kit Refer to Table 6 1 on page 6 2 for replacement part number and ordering information Table 3 1 Torque Wrench Information Connector Type Torque Setting Torque Tolerance 3 5 mm 90 N cm 8 in Ib 9 0 N cm 0 8 in Ib Using a torque wrench guarantees that the connection is not too tight preventing possible connector 3 10 85052D User s and Service Guide Use Maintenance and Care of the Devices Connections damage It also guarantees that all connections are equally tight each time Prevent the rotation of anything other than the connector nut that you are tightening It may be possible to do this by hand if one of the connectors is fixed as on a test port However it is recommended that you use an open end wrench to keep the body of the device f
36. rmation contained herein Should Keysight and the user have a separate written agreement with warranty terms covering the material in this document that conflict with these terms the warranty terms in the separate agreement shall control Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or sub contract Software is delivered and licensed as Commercial computer soft ware 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 clause Use duplication or disclosure of Software is subject to Keysight Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Gov ernment will receive no greater than Restricted Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Govern ment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DEAR 252 227 7015 b 2 November 1995 as applicable in any technical data Safety Notices CAUTION A CAUTION notice denotes a haz ard It calls attention to an operat ing procedure practice or t
37. rom turning 1 Position both wrenches within 90 degrees of each other before applying force See Figure 3 3 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 several devices are connected together Figure 3 3 Wrench Positions Hold this wrench steady Device Device Correct Method Incorrect Method Reduces Lift on Connection Too Much Lift on Connection ph711a 2 Hold the torque wrench lightly at the end of the handle only beyond the groove See Figure 3 4 Figure 3 4 Using the Torque Wrench Torquing Direction Stop when handle begins to yield ph712a 3 Apply downward force perpendicular to the wrench handle This applies torque to the connection through the wrench Do not hold the wrench so tightly that you push the handle straight down along its length rather than pivoting it otherwise you apply an unknown amount of torque 4 Tighten the connection just to the torque wrench break point The wrench handle gives way at its internal pivot point See Figure 3 4 on page 3 11 Do not tighten the connection further 85052D User s and Service Guide 3 11 Use Maintenance and Care of the Devices Handling and Storage CAUTION You don t have to fully break the handle of the torque wrench to reach the specified torque doing so can cause the handle to kick back and loosen the conne
38. s establish a traceable link to NIST for Keysight to the extent allowed by the Institute s calibration facility The specifications data provided for the devices in the kit is traceable to NIST through Keysight Technologies 4 2 85052D User s and Service Guide Performance Verification Recertification Recertification The following will be provided with a recertified kit e anew Calibration sticker affixed to the case e a certificate of calibration e a calibration report for each device in the kit listing measured values specifications and uncertainties NOTE A list of NIST traceable numbers may be purchased upon request to be included in the calibration report Keysight Technologies offers a Standard calibration for the recertification of the kit For more information contact Keysight Technologies Refer to Contacting Keysight on page 5 5 for a list of offices 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 interval should begin on the date the kit is first used after the recertification date Where to Send a Kit for Recertification Contact Keysight Technologies for information on where to send your kit for recertification
39. scharge ESD is essential while connecting inspecting or cleaning connectors attached to a static sensitive circuit such as those found in test sets Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged Static discharges too small to be felt can cause permanent damage Devices such as calibration components and devices under test DUT can also carry an electrostatic charge To prevent damage to the test set components and devices e always wear a grounded wrist strap having a 1 MQ resistor in series with it when handling components and devices or when making connections to the test set e always use a grounded conductive table mat while making connections e 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 e 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 e always ground the center conductor of a test cable before making a connection to the analyzer test port or other static sensitive device This can be done as follows 1 Connect a short from your calibration kit to one end of the cable to short the center conductor to the outer conductor 2 While wearing a grounded wrist strap grasp the outer shell o
40. ssignments and standard definitions from Keysight s Calibration Kit Definitions Web page at www na support keysight com pna caldefs stddefs html Refer to your network analyzer user s guide or embedded Help for instructions on manually entering calibration definitions selecting the calibration kit and performing a calibration Equipment Required but Not Supplied Some items are required or recommended for successful operation of your kit but are not supplied with the kit Refer to Table 6 2 on page 6 3 for a list of these items and for ordering information 85052D User s and Service Guide 1 3 General Information Incoming Inspection Incoming Inspection Refer to Chapter 6 to verify a complete shipment Use Table 1 1 to record the serial numbers of all serialized devices in your kit Check for damage The foam lined storage case provides protection during shipping If the case or any device appears damaged or if the shipment is incomplete refer to Contacting Keysight on page 5 5 Keysight will arrange for repair or replacement of incomplete or damaged shipments without waiting for a settlement from the transportation company See Returning a Kit or Device to Keysight on page 5 4 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 seria
41. st port adapters are supplied in most calibration kits Precision slotless connectors have the following characteristics e There is no loss of traceable calibration on test ports when the male pin diameter of the connector on the device under test is different from the male pin diameter of the calibration standard e The female PSC and its mating male connector can be measured and specified separately as part of the device either is attached to All female connectors can have a known stable impedance based only on the diameters of their inner and outer conductors e Female calibration standards can be fully specified Their specifications and traceability are unaffected by the diameter of the male mating pin e A fully traceable performance verification is made using a precision 50 ohm airline having a PSC e Measurement repeatability is enhanced due to non changing connector characteristics with various pin diameters With PSCs on test ports and standards the percentage of accuracy achieved when measuring at 50 dB return loss levels is comparable to using conventional slotted connectors measuring devices having only 30 dB return loss This represents an accuracy improvement of about 10 times 1 6 85052D User s and Service Guide General Information Clarifying the Terminology of a Connector Interface Clarifying the Terminology of a Connector Interface In this document and in the prompts of the PNA calibration wizard the gender
42. t number 6 3 supplies cleaning 1 3 part number 6 3 swabs cleaning 3 5 T tag service 4 3 5 4 temperature affect on electrical performance 2 2 calibration 2 2 cautions about 2 2 changes in 2 2 device 2 2 error corrected 2 2 measurement 2 2 specifications 2 2 operating 2 2 storage 2 2 verification and measurement 2 2 test data 4 3 threads connector cleaning 3 4 inspecting 3 3 torque wrench 1 3 specifications 3 10 traceability of device specifications 4 2 4 3 troubleshooting flowchart 5 2 U user s and service guide part number 6 3 V verification performance 4 3 temperature 2 2 visual inspection 3 3 WwW wear connector 3 3 affect on electrical performance 3 3 when to calibrate 1 8 wrench open end 1 3 3 11 3 12 proper positioning of 3 11 torque 1 3 3 10 3 11 precautions for use of 3 11 proper use of 3 11 wrist strap part number 6 3 Z zeroing connector gage 3 8 85052D User s and Service Guide Index iii Index Index iv 85052D User s and Service Guide
43. ter conductors Connector nuts should move smoothly and be free of burrs loose metal particles and rough spots What Causes Connector Wear Connector wear is caused by connecting and disconnecting the devices The more use a connector gets the faster it wears and degrades The wear is greatly accelerated when connectors are 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 adapter be used as a test port saver to minimize the wear on the test set s test port connectors Inspect the Mating Plane Surfaces Flat contact between the connectors at all points on their mating plane surfaces is required for a good connection See Figure 2 1 on page 2 3 Look especially for deep scratches or dents and for dirt and metal particles on the connector mating plane surfaces Also look for signs of damage due to excessive or uneven wear or misalignment Light burnishing of the mating plane surfaces is normal and is evident as light scratches or shallow circular marks distributed more or less uniformly over the mating plane surface Other small defects and cosmetic imperfections are also normal None of thes
44. the observed limits see Table 2 2 on page 2 4 or from bad connection techniques can also damage these devices 85052D User s and Service Guide 1 7 General Information When to Calibrate When to Calibrate A network analyzer calibration remains valid as long as the changes in the systematic error are insignificant This means that changes to the uncorrected leakages directivity and isolation mismatches source match and load match and frequency response of the system are small lt 10 relative to accuracy specifications Change in the environment especially temperature between calibration and measurement is the major cause in calibration accuracy degradation The major effect is a change in the physical length of external and internal cables Other important causes are dirty and damaged test port connectors and calibration standards If the connectors become dirty or damaged measurement repeatability and accuracy is affected Fortunately it is relatively easy to evaluate the general validity of the calibration To test repeatability remeasure 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 r
45. tors 3 3 definitions calibration 1 2 entering 1 2 permanently stored 1 2 part numbers 6 2 deviation from nominal phase 2 5 device cleaning 3 4 connecting 3 10 damage 3 3 disconnecting 3 12 handling 3 12 maintenance 1 7 performance verifying 4 2 specifications 2 5 certification of 2 6 electrical 2 5 traceability 4 2 4 3 storage 3 12 temperature 2 2 visual inspection 3 3 disconnections 3 12 documentation part number 6 3 downloading class assignments amp std definitions from the Web A 2 E electrical characteristics effects of temperature 2 2 electrical specifications 2 5 electrostatic discharge See ESD end cap part numbers 6 2 environmental regulations 3 5 requirements 2 2 specifications 2 2 equipment required 1 3 ESD 3 2 protection 3 2 supplies part numbers 6 3 F female connectors 3 3 inspection of 3 3 flowchart troubleshooting 5 2 frequency of calibration 1 8 frequency specifications 2 5 G gage connector 1 3 handling 3 8 zeroing 3 8 gaging connectors 3 6 3 8 when to do 3 7 procedures 3 8 85052D User s and Service Guide Index i Index to determine pin depth 3 6 gender connector 1 7 general information 1 1 handling 3 12 heel strap part number 6 3 how often to calibrate 1 8 humidity specifications 2 2 incoming inspection 1 4 information troubleshooting 5 3 inspection damage 3 3 defects 3 3 female con
46. y difficult to perform precision measurements with conventional slotted connectors The precision slotless connector was developed to eliminate this problem The PSC has a center conductor with a solid cylindrical shell the outside diameter of which does not change when mated Instead this center conductor has an internal contact that flexes to accept the male pin Cleaning Connectors Clean connectors are essential for ensuring the integrity of RF and microwave coaxial connections 1 Use Compressed Air or Nitrogen WARNING Always use protective eyewear when using compressed air or nitrogen Use compressed air or nitrogen to loosen particles on the connector mating plane surfaces Clean air cannot damage a connector or leave particles or residues behind You can use any source of clean dry low pressure compressed air or nitrogen that has an effective oil vapor filter and liquid condensation trap placed just before the outlet hose Ground the hose nozzle to prevent electrostatic discharge and set the air pressure to less than 414 kPa 60 psi to control the velocity of the air stream High velocity streams of compressed air can cause electrostatic effects when directed into a connector These electrostatic effects can damage the device Refer to Electrostatic Discharge earlier in this chapter for additional information 2 Clean the Connector Threads 3 4 85052D User s and Service Guide Use Maintenance and Care of the Devices
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