TEK A6302, A6302XL I..
Contents
1. A6302 and A6302XL Instructions 7 gt gt gt gt gt Specifications This section lists the specifications characteristics certifications and com pliances for the A6302 and A6302XL current probes Warranted specifications Table 1 are guaranteed performance specifications unless specifically designated as typical or nominal Table 1 Warranted A6302 and A6302XL specifications Installed current probe A6302XL AM 503B AM5030 only Parameter Bandwidth DC to 50 MHz 3 dB DC to 17 MHz 3 dB Rise time 1096 to 9096 x7 ns x 20 ns Aberrations typical T pk pk 10 DC gain accuracy lt 3 lt 3 System noise typical lt 250 Arms lt 250 uAn us 1 You can optimize the pulse response by adjusting R364 HF COMP located inside the AM 503 amplifier Refer to the AM 503 Instruction Manual 070 2052 XX for instructions on how to access this adjustment Onthe AM 503B and AM 5030 the DC gain accuracy is correctable to 0 2 when using the AM 503B and AM 5030 probe trim procedure described on page 4 The bandwidth of the measurement instrument must be lt limited to 200 MHz Mechanical electrical and environmental characteristics for the A6302 and A6302XL current probes are listed in Tables 2 through 4 and Figures 4 through 7 Table 2 Electrical characteristics Frequency derating 2 5 A at 10 MHz Maximum bare wire working voltage2. Probe Trim Adjust for Gain Accuracy AM 503B and AM 5030 Only After the PROBE DEGAUSS AUTOBALANCE routine has been run the probe and amplifier system will meet all published specifications however if you want to improve the tolerance of the system gain accuracy or to intentionally offset the gain accuracy to make up for total system errors the probe trim adjust routine may be performed Probe trim adjust is a multiplicative factor that you can use to adjust the gain of the current amplifier system You can set this multiplier in increments of 0 001 from 0 750 through 1 250 Probe trim adjust is used for an optional calibration of 4 A6302 and A6302XL Instructions Getting Started some current probes If you are not performing such an adjustment leave probe trim adjust to the factory default of unity gain 1 000 To set probe trim adjust press and hold the 20MHz BW LIMIT button while pressing and releasing the COUPLING button Use the and amp buttons to adjust the setting that is displayed in the CURRENT DIVISION display When finished press either the 20MHz BW LIMIT or COUPLING button to restore normal operation The display shows the last three significant digits of the display adjust setting the leading 0 or 1 are omitted If the first digit displayed is 7 8 or 9 then the leading digit must be 0 If the first digit displayed is 0 1 or 2 then the leading digit must be 1 Maximum Current Limits Current prob
3. Part Number 204 0288 03 214 0835 00 214 0849 00 352 0106 00 175 1836 05 175 1836 06 175 1836 07 213 0087 00 334 9048 00 204 0714 06 120 0464 02 120 0464 04 214 0854 00 351 0121 01 214 0997 00 020 0167 01 070 3905 04 Serial No Effective B010100 B065000 B072000 B010100 B065000 Serial No Discontd Qty B064999 B071999 B064999 Name amp Description PROBE CURRENT A6302 BODY HALF PROBE UPPER BODY HALF BLACK POLY SPRING HLCPS 0 127 OD X 2 65 L SST RTNR RETURN SPR BRS CD PL HOLDER SPR RTNR DELRIN CABLE ASSY RF W CIRCUIT BOARD A6302 CABLE ASSY RF W CIRCUIT BOARD 6302 CABLE ASSY CABLE W CIRCUIT BOARD A6302 SCREW TPG TC 2 32 X 0 5 TYPE BT PANHEAD STEEL CADIUM PLATED POZIDRIVE MARKER IDENT P ROBE IDENT LABEL A6302 BODY HALF LOWER BODY HALF W CONTACTS TRANSFORMER CUR UPPER amp LOWER TRANSFORMER CUR UPPER amp LOWER CONTACT ELEC UPPER SHELF CU BE CONT ASSY ELEC PROBE SLIDE ASSY BALL BEARING 0 094 5 ST Standard Accessories ACCESSORY PKG LEAD ELECTRICAL PROBE GROUND SDI 23 AWG 6 0 L MANUAL TECH INSTRUCTIONS A6302 A6302XL DP A6302 and A6302XL Instructions Mfr Code 80009 91260 80009 TK2565 80009 80009 80009 3M099 80009 80009 80009 80009 TK1947 80009 05469 80009 80009 Mfr Part Number 204 0288 03 ORDER BY DESCR 214 0849 00 352 0106 00 175 1836 05 175 1836 06 175 1836 07 ORDER BY DESCR 334 9048 00 204 0714 06
4. measure the peak current of the pulse see Figure 3a Divide the Ampere second or Ampere microsecond specification of your probe by the measured peak current of the pulse The quotient is the maximum allowable pulse width the pulse width at the 50 point of the measured signal must be less than this value For example the A6302 current probe has a maximum Ampere second product of 100 A us If a pulse measured with an A6302 probe has a peak current of 40 A the maximum allowable pulse width would be 100 A us divided by 40 A or 2 5 us Maximum max p Do not exceed pulsed Pulse width at 5096 Pulse width at 5096 5096 Maximum pm continuous current 0A a Maximum allowable pulse width b Maximum allowable pulse amplitude Figure 3 Applying the amp second product rule 6 A6302 and A6302XL Instructions Getting Started Procedure B To determine the maximum allowable pulse amplitude measure the pulse width at the 50 points see Figure 3b Divide the Ampere second or Ampere microsecond specification of your probe by the pulse width The quotient is the maximum allowable current the peak amplitude of the measured pulse must be less than this value For example the A6302 current probe has a maximum Ampere second product of 100 A us If a pulse measured with an A6302 probe has a width of 3 us the maximum allowable peak current would be 100 A us divided by 3 us or 33 3 A
5. 300 Vg us CAT I see Table 5 Maximum continuous current AM 503B and AM 5030 20 A DC peak AC 11A16 10 5 A DC peak AC Maximum pulsed current 50A Amp second product 1 x 104A s 100A us Insertion impedance 0 1 O at 1 MHz 0 5 Q at 50 MHz 8 A6302 and A6302XL Instructions Specifications Maximum peak pulse lt 50 A Amp second product limit 100 A us Maximum continuous input x20 A Arrperes peak 1 2 3 4 5 Allowable pulse width microseconds Figure 4 A6302 and A6302XL specified operating area 200 100 50 10 Meaximumiinput current peak 1 kHz 10 kHz 100 kHz 1 MHz 10 MHz 50 MHz Frequency Figure 5 A6302 and A6302XL frequency derating curve for maximum input current A6302 and A6302XL Instructions 9 Specifications 1 0 Typical impedance A 0 5 Impedance deviation AT LA A 7 2 2 02 zt HATTE e 24 A 0 1 2 A gt T A 7 E 05 7 5 4 7 7 7 Z 02 01 0 1 0 2 0 5 1 2 5 10 20 50 Frequency MHz
6. A6302XL Instructions Getting Started Product Description A6302 and A6302XL Instructions This section explains how to install and operate the A6302 and A6302XL current probes The A6302 is a DC to 50 MHz current probe designed for use with the AM 503 family of current probe amplifiers and with the 11A16 plug in With the AM 503 family the A6302 can measure currents to 20 A DC peak AC and up to 50 A peak current while not exceeding the amp second rating With the 11A16 plug in the A6302 can measure currents to 10 5 A The A6302XL is an extended length cable version of the A6302 It offers the same current range as the A6302 with a diminished frequency range of DC to 17 MHz The A6302XL can only be used with the AM 503B and AM 5030 and will not be recognized by other current probe amplifiers The probe performance specifications verification and adjustment are unique to the amplifier that the probe 1s plugged into Please refer to the amplifier documentation for specifications and verification procedures Getting Started Probe Installation To connect the current probe to the amplifier input connector align the tab of the probe connector with the slot in the amplifier input connector as shown in Figure 1 a Align the dot on the probe connector with the groove opening of the input connector as shown in Figure 1 b Push the probe connector in while twisting the barrel clockwise to lock the connector it to impact
7. Figure 6 A6302 and A6302XL insertion impedance curve Table 3 Mechanical characteristics Probe dimensions Length 20 cm 7 77 inches Width 1 6 cm 0 625 inches Height 3 2 cm 1 25 inches Cable length A6302 2 m 6 6 feet A6302XL 8 m 26 25 feet Weight 6302 255 g 0 56 lbs A6302XL 726 g 1 6 Ibs Maximum Wire Size 3 8 mm 0 15 in Figure 7 Probe jaw dimensions nominal 10 A6302 and A6302XL Instructions Specifications Table 4 Environmental characteristics Operating temperature 0 C to 50 C Storage temperature 40 C to 75 C Humidity Nonoperating 30 C to 60 C at 90 to 95 RH Operating 30 C to 50 C at 90 to 95 RH Transportation Qualifies under National Safe Transit Procedure 1A category Il 36 in drop Mechanical shock 500 g Half sine Three shocks on three axes of the probe for 1 ms duration Total of 9 shocks Vibration 0 025 in pk pk displacement 10 50 Hz in 1min cycles Hold 9 min at any major resonance or if none at 55 Hz Total time 54 min Random vibration Operating 0 31 gnus 5 to 500 Hz 10 minutes on each axis Tektronix Std 062 2858 00 Rev B Class 3 Table 5 lists the product certifications and compliances Table 5 Certifications and compliances EC Declaration of Conformity Meets intent of Low Voltage Directive 73 23 EEC for Product Safety Compliance was demonstrated to the following specification as listed in the Official J ournal o
8. or the core may crack Do not connect or disconnect the current probe while the probe is clamped around a live conductor or while the amplifier is powered on or the probe may suffer electrical damage N CAUTION Handle the current probe with care Do not drop the probe or subject Amplifier Push connector in and twist to lock Current probe LA connector ee e Tab Amplifier A Slot Groove Alignment dot a Align the tab with the connector slot b Insert the connector into the amplifier E Figure 1 Connecting a current probe to the current probe amplifier 2 A6302 and A6302XL Instructions Getting Started Operating the Current Probe Slide A The current probe has a slide mechanism that opens and closes the probe jaw This allows you to clamp the probe around a conductor under test The slide must be locked to accurately measure current or to degauss the probe If a probe is unlocked the PROBE OPEN indicator on the amplifier lights WARNING When the probe slides are open the exposed ferrite core pieces are not insulated To avoid injury or equipment damage remove power from an uninsulated wire before clamping the current probe around it Also never disconnect the probe from the amplifier when the probe is connected to a live conductor Figure 2 illustrates the slide operation of the probe To open the probe pull the slide back until the jaw i
9. 120 0464 02 120 0464 04 214 0854 00 351 0121 01 ORDER BY DESCR 020 0167 01 070 3905 04 Replaceable Parts 6302 B064999 amp below Figure 13 A6302 exploded view A6302 and A6302XL Instructions 21 Replaceable Parts A6302XL Replaceable Parts List Fig amp Index Number 10 11 12 13 22 Tektronix Part Number 204 0288 03 214 0835 00 214 0849 00 352 0106 00 174 3221 00 174 3221 01 213 0087 00 334 9049 00 204 0714 03 204 0714 06 120 0464 02 120 0464 04 214 0854 00 351 0121 01 214 0997 00 020 0167 01 070 3905 04 Serial No Effective B010100 B011000 B010100 B011000 B010100 B011000 Serial No Discont d B010999 B010999 B010999 Qty Name amp Description PROBE CURRENT A6302XL BODY HALF PROBE UPPER SPRING HLCPS 0 127 OD X 2 65 L SST RTNR RETURN SPR BRS CD PL HOLDER SPR RTNR DELRIN CABLE ASSEMBLY WITH CIRCUIT BOARD A6302XL CABLE ASSEMBLY WITH CIRCUIT BOARD A6302XL SCREW TPG TC 2 32 X 0 5 TYPE BT PANHEAD STEEL CADIUM PLATED POZIDRIVE LABEL LEXAN IDENTIFICATION A6302XL BODY HALF PROBE BOTTOM W CONTACTS BODY HALF BODY HALF PROBE BOTTOM W CONTACTS TRANSFORMER CUR UPPER amp LOWER TRANSFORMER CUR UPPER amp LOWER CONTACT ELEC UPPER SHELF CU BE CONT ASSY ELEC PROBE SLIDE ASSY BALL BEARING 0 094 5ST Standard Accessories ACCESSORY PKG LEAD ELECTRICAL PROBE GROUND SDI 23 AWG 6 0 L MANUAL TECH INSTR
10. E FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES Service Assurance If you have not already purchased Service Assurance for this product you may do so at any time during the product s warranty period Service Assurance provides Repair Protection and Calibration Services to meet your needs Repair Protection extends priority repair services beyond the product s warranty period you may purchase up to three years of Repair Protection Calibration Services provide annual calibration of your product standards compliance and required audit documentation recall assurance and reminder notification of scheduled calibration Coverage begins upon registration you may purchase up to five years of Calibration Services Service Assurance Advantages W Priced well below the cost of a single repair or calibration m Avoid delays for service by eliminating the need for separate purchase authorizations from your company m Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance contact your Tektronix representative and provide the information below Service Assurance may not be available in locations outside the United States of America Name VISA or Master Card number and expiration Company date or purchase order number Address Repair Protection 1 2 or 3 years City St
11. Instructions Tektronix A6302 amp A6302XL 20 Ampere AC DC Current Probes 070 3905 04 Warning The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to all safety summaries prior to performing service Copyright Tektronix Inc All rights reserved Tektronix products are covered by U S and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Printed in the U S A Tektronix Inc P O Box 1000 Wilsonville OR 97070 1000 TEKTRONIX and TEK are registered trademarks of Tektronix Inc WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one 1 year from the date of shipment If a product proves defective during this warranty period Tektronix at its option either will repair the defective product without charge for parts and labor or will provide a replacement in exchange for the defective product In order to obtain service under this warranty Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service cent
12. UCTIONS A6302 A6302XL DP Mfr Code 80009 91260 80009 TK2565 80009 80009 3M099 80009 80009 80009 80009 80009 80009 TK2565 05469 80009 80009 Mfr Part Number 204 0288 03 ORDER BY DESC 214 0849 00 352 0106 00 174 3221 00 174 3221 01 ORDER BY DESC 334 9049 00 204 0714 03 204 0714 06 120 0464 02 120 0464 04 214 0854 00 351 0121 01 ORDER BY DESC 020 0167 01 070 3905 04 A6302 and A6302XL Instructions Replaceable Parts A6302XL BO10999 amp below Figure 14 A6302XL exploded view A6302 and A6302XL Instructions 23 Replaceable Parts Manufacturers cross index Mfr Code 05469 3M099 80009 91260 TK1947 TK2565 24 Manufacturer BEARINGS INC PORTLAND SCREW COMPANY TEKTRONIX INC CONNOR FORMED METAL PRODUCTS NORTHWEST ETCH TECHNOLOGY VISION PLASTICS INC Address 3634 EUCLID PO BOX 6925 6520 N BASIN AVE 14150 SW KARL BRAUN DR PO BOX 500 1729 J UNCTION AVENUE 2601S HOOD ST PO BOX 110610 26000 SW PARKWAY CENTER DRIVE City State Zip Code CLEVELAND OH 44101 PORTLAND OR 97217 BEAVERTON OR 97077 0001 SAN J OSE 95112 TACOMA WA 98411 0610 WILSONVILLE OR 97070 A6302 and A6302XL Instructions
13. XL Instructions Replaceable Parts Parts List Column Descriptions Column Description 1 Figure amp Index Number Items in this section are referenced by figure and index numbers to the exploded view illustrations 2 Tektronix Part Number Use this part number when ordering replacement parts from Tektronix 3and4 Serial Number Column three indicates the serial number at which the part was first effective Column four indicates the serial number at which the part was discontinued No entries indicates the part is good for all serial numbers 5 This indicates the quantity of parts used 6 Name amp Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Catalog handbook H6 1 for further item name identification 1 Mfr Code This indicates the code of the actual manufacturer of the part 8 Mfr Part Number This indicates the actual manufacturer s or vendor s part number Abbreviations Abbreviations conform to American National Standard ANSI Y 1 1 1972 Mfr Code to Manufacturer table titled Manufacturers Cross Index shows codes names and addresses Cross Index of manufacturers or vendors of components listed in the parts list A6302 and A6302XL Instructions 19 Replaceable Parts A6302 Replaceable parts list Fig amp Index Number 13 10 11 12 13 20 Tektronix
14. ate Postal code Calibration Services 1 2 3 4 or 5 years Country Instrument model and serial number Phone Instrument purchase date ni Table of Contents General Safety Summary iii Getting Started 2 5 ite ie hens cb n rtr eI rre eos 1 Product Description 0 0 ccc cette E eens 1 Probe Installation see se pee e I ege 2 Operating the Current Probe Slide 3 Degaussing and Autobalancing the Current Probe 4 Probe Trim Adjust for Gain Accuracy AM 503B and AM 5030 Only 4 Maximum Current Limits 5 Specifications ev hr D sr ERE TREE TI wwe 8 Maintenance rx sie ncn a e Bee KR Ra Rea 12 Cleaning PR uU pa P eS 12 Disassembly Instructions 0 ccc eect n 12 Obtaining Replacement 17 Preparation for Shipment 2 0 0c cece cece e 17 Replaceable Parts 2 2 9 eu ene Ir en rr erre 18 Parts Ordering Information 000 cece cece eh 18 Using the Replaceable Parts List 18 A6302 and A6302XL Instructions i Contents List of Figures Figure 1 Connecting a current probe to the current probe amplifier 2 Figure 2 Operating the probe amp 3 Figure 3 Applying the amp s
15. econd product 6 Figure 4 A6302 and A6302XL specified operating area 9 Figure 5 A6302 and A6302XL frequency derating curve for maximum input c rrent 4 2 0 e RR e Re he xen RR E reus 9 Figure 6 6302 and A6302XL insertion impedance curve 10 Figure 7 Probe jaw dimensions nominal 10 Figure 8 Removing the strain relief boot 13 Figure 9 Removing the top half of the probe 14 Figure 10 Removing the probe slide 14 Figure 11 Removing the current transformer and cable assembly of the A6302 probe ere e eter re rot Rhe TUE I 15 Figure 12 Removing the current transformer of the A6302XL probe 16 Figure 13 A6302 exploded 21 Figure 14 A6302XL exploded view 23 List of Tables Table 1 Warranted A6302 and A6302XL specifications 8 Table 2 Electrical characteristics 8 Table 3 Mechanical characteristics 10 Table 4 Environmental characteristics 11 Table 5 Certifications and compliances 11 il A6302 and A6302XL Instructions fcc if General Safety Summary Injury Precautions Product Damage Precautions Review the following safety precautions to avoid injury and prev
16. ent damage to this product or any products connected to it Only qualified personnel should perform service procedures Avoid Electric Overload To avoid electric shock or fire hazard do not apply a voltage to a terminal that is outside the range specified for that terminal Avoid Electric Shock To avoid injury or loss of life do not connect or disconnect probes or test leads while they are connected to a voltage source Ground the Product This product is indirectly grounded through the grounding conductor of the mainframe power cord To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded Do Not Operate in Wet Damp Conditions To avoid electric shock do not operate this product in wet or damp conditions Do Not Operate in an Explosive Atmosphere To avoid injury or fire hazard do not operate this product in an explosive atmosphere Do Not Operate With Suspected Failures If you suspect there is damage to this product have it inspected by qualified service personnel Do Not Immerse in Liquids Clean the probe using only a damp cloth Refer to cleaning instructions A6302 and A6302XL Instructions iii General Safety Summary Symbols and Terms A A Certifications and Compliances Terms in this Manual These terms may appear in this manual WARNING Warning statement
17. er designated by Tektronix with shipping charges prepaid Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage resulting from attempts by personnel other than Tektronix representatives to install repair or service the product b to repair damage resulting from improper use or connection to incompatible equipment c to repair any damage or malfunction caused by the use of non Tektronix supplies or d to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product THIS WARRANTY IS GIVEN BY TEKTRONIX IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE TEKTRONIX RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY TEKTRONIX AND ITS VENDORS WILL NOT BE LIABL
18. es have three maximum current ratings continuous pulsed and Ampere second product Exceeding any of these ratings can saturate the probe core and cause measurement errors The section titled Specifications on page 8 lists the maximum current ratings of the probe m Maximum Continuous Current refers to the maximum current that can be continuously measured at DC or at a specified AC frequency The maximum continuous current value is derated with frequency as the frequency increases the maximum continuous current rating decreases m Maximum Pulsed Current refers to the maximum peak value of pulsed current the probe can accurately measure regardless of how short within bandwidth limitations the pulse duration Wm Ampere Second Product defines the maximum width of pulsed current that you can measure when the pulse amplitude is between the maximum continuous and maximum pulsed current specifications The maximum continuous specification itself varies by frequency NOTE Always degauss the probe after measuring a current that exceeds the maximum continuous current maximum pulsed current or Ampere second product rating of the probe Exceeding these ratings can magnetize the probe and cause measurement errors To determine if your measurement exceeds the Ampere second product perform either Procedure A or Procedure B 6302 and A6302XL Instructions 5 Getting Started Procedure A determine the maximum allowable pulse width
19. f the European Communities Low Voltage Directive 73 23 EEC as amended by 93 68 EEC EN 61010 1 Safety requirements for electrical equipment for measurement control and laboratory use EN 61010 2 032 1994 Particular requirements for hand held current clamps for electrical measurement and test Certifications Overvoltage category Pollution degree 2 A6302 and A6302XL Instructions Underwriters Laboratories certified to Standard UL3111 1 and CSA CAN C22 2 No 1010 1 for Electrical and Electronic Measuring and Testing Equipment Underwriters Laboratories certified to Standard IEC 1010 2 032 Particular requirements for hand held current clamps for electrical measurement and test Category Examples of Products in this Category CAT III Distribution level mains fixed installation CAT II Local level mains appliances portable equipment CAT Signal levels in special equipment or parts of equipment telecommunications electronics Do not operate in environments where conductive pollutants may be present 11 pU Maintenance AN Cleaning This section explains how to clean the A6302 and A6302XL current probes and if necessary disassemble a probe for maintenance or repair Also included are instructions for preparing a probe for shipment WARNING Probe disassembly should only be performed by qualified service personnel To clean the probe body use a soft cloth dampened in a solution of mild deter
20. former Body half Ground connection Figure 11 Removing the current transformer and cable assembly of the A6302 probe 3 Before reassembling the probe be sure that the gap between the stationary and moveable core pieces is clean If necessary use isopropyl alcohol or a similar cleaning agent to clean the pieces Also clean the contacts of the slide switch if necessary Should the plastic slide assembly require lubrication sparingly apply silicone based grease to the parts 4 Probe reassembly is the reverse of steps 1 through 2 of this procedure and steps 1 through 5 on pages 12 through 14 CAUTION To avoid damaging the wires inside the probe carefully dress the N wires in the lower body half to avoid contact with the slide assembly Exercise care when fitting the slide back into the probe body aligning the switch contacts can require patience A6302 and A6302XL Instructions 15 Maintenance 16 Replacing the Current Replace the current transformer or cable assembly the A6302XL probe as Transformer or Cable follows Assembly of the A6302XL Probe 1 To replace the current transformer lift the transformer out of the probe as shown in Figure 12 and pull it out of the circuit board socket 2 To remove the circuit board unsolder the ground connection on the circuit board and lift the strain relief and the circuit board from the body half Strain relief Body half Ground connectio
21. gent and water To clean the core open the jaw and clean the exposed core surfaces with a cotton swap dampened with isopropyl alcohol isopropanol or ethyl alcohol fotocol or ethanol Do not lubricate the jaws mating surfaces Any lubricant between the core pieces should be removed with a recommended solvent Do not use chemicals containing benzine benzene toluene xylene acetone or similar solvents Do not use a petroleum based lubricant on the plastic If the plastic slide assembly requires lubrication use a silicone based grease sparingly Do not immerse the probe in liquids or use abrasive cleaners Disassembly Instructions 12 A Disassembling the Probe Body The following procedures explain how to disassemble the probe body and replace the current transformer WARNING Probe disassembly should only be performed by qualified service personnel Dissemble the A6302 or A6302XL probe body as follows 1 Remove the two screws from the bottom of the probe and pull the strain relief boot back as shown in Figure 8 A6302 and A6302XL Instructions Maintenance Strain relief boot Figure 8 Removing the strain relief boot 2 Move the probe slide assembly to the open position NOTE The probe slide contains a tiny metal ball In step 3 be careful not to lose the ball by accidentally letting it fall out 3 Hold the probe in a top up horizontal position and slide the top half of the probe body
22. ight packing material 4 Sealthe carton with shipping tape A6302 and A6302XL Instructions 17 D wA gt Replaceable Parts This section contains a list of the replaceable components for the A6302 and A6302XL current probes Use this list to identify and order replacement parts Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements Therefore when ordering parts it is important to include the following information in your order m Part number m Instrument type or model number Instrument serial number Instrument modification number if applicable If you order a part that has been replaced with a different or improved part your local Tektronix field office or representative will contact you concerning any change in part number Change information if any is located at the rear of this manual Using the Replaceable Mechanical Parts List The tabular information in the Replaceable Mechanical Parts List is arranged for quick retrieval Understanding the structure and features of the list will help you find all of the information you need for ordering replacement parts The following table describes the content of each column in the parts list 18 A6302 and A6302
23. n Figure 12 Removing the current transformer of the A6302XL probe 3 Before reassembling the probe be sure that the gap between the stationary and moveable core pieces is clean If necessary use isopropyl alcohol or a similar cleaning agent to clean the pieces Also clean the contacts of the slide switch if necessary Should the plastic slide assembly require lubrication sparingly apply silicone based grease to the parts 4 Probe reassembly is the reverse of steps 1 through 2 of this procedure and steps 1 through 5 on pages 12 through 14 NOTE Exercise care when fitting the slide back into the probe body aligning the switch contacts can require patience A6302 and A6302XL Instructions Maintenance Obtaining Replacement Parts Replacement parts may be obtained through your local Tektronix field office or representative Refer to the Replaceable Parts List on page 18 for more informa tion Preparation for Shipment If you must ship your Tektronix product please use the original packaging if possible If the original packaging is unfit for use or not available use the following packaging guidelines 1 Use a corrugated cardboard shipping carton having inside dimensions at least one inch greater than the probe dimensions The box should have a carton test strength of at least 200 pounds 2 Put the probe into a plastic bag or wrap to protect it from dampness 3 Place the probe into the box and stabilize it with l
24. off as shown in Figure 9 4 Remove the metal ball 5 Turn the probe upside down push the slide back slightly and remove the slide see Figure 10 A6302 and A6302XL Instructions 13 Maintenance Be careful to keep A this tiny metal ball from falling out S3 go 1 Hold the bottom 2 Grasp the top half of half of the probe the probe body here body in one hand with your other hand then a pivot the back end up and b slide the top forward offthe end ofthe bottom half of the probe body Figure 9 Removing the top half of the probe 1 Hold the bottom half of the probe body in one hand 2 Grasp the top half of the probe body here with your other hand then a push the slide back slightly and b withdraw the slide from the probe body Figure 10 Removing the probe slide 14 A6302 and A6302XL Instructions Maintenance Replacing the Current Replace the current transformer or cable assembly of the A6302 probe as Transformer or Cable follows Assembly of the A6302 Probe 1 Toremove the current transformer lift the front edge of the circuit board and transformer out of the probe and then pull the transformer socket off the circuit board pins 2 Toremove the cable assembly unsolder the two connections on the circuit board then lift the strain relief and circuit board from the body half Refer to Figure 11 Strain relief Circuit board Ground connection Current trans
25. s identify conditions or practices that could result in injury or loss of life CAUTION Caution statements identify conditions or practices that could result in damage to this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the marking CAUTION indicates a hazard to property including the product Symbols on the Product The following symbols may appear on the product A AN m DANGER Protective Ground ATTENTION Double High Voltage Earth Terminal Refer to Manual Insulated Refer to the specifications section for a listing of certifications and compliances that apply to this product A6302 and A6302XL Instructions Cc l Preface This instruction manual supports the operation and maintenance of the A6302 and A6302XL current probes with any of the AM 503 series current probe amplifiers You can find additional documentation supporting the operation and maintenance of the AM 503 series amplifiers in the following manuals Wm AM 503 Instruction Manual 070 2052 X X m AM 503S AM 503A User Manual 070 8170 X X m AM 503S AM 503A Service Manual 070 8174 XX m AM 503B amp AM 5030 Instruction Manual 070 8766 X X A6302 and A6302XL Instructions Preface vi A6302 and
26. s open To lock the probe push the slide forward until the detent snaps into place Probe open Probe locked NS Figure 2 Operating the probe slide A6302 and A6302XL Instructions 3 Getting Started Degaussing and Autobalancing the Current Probe Degaussing the probe removes any residual magnetization from the probe core Such residual magnetization can induce measurement error Autobalancing removes unwanted DC offsets in the amplifier circuitry Failure to degauss the probe is a leading cause of measurement errors To maintain measurement accuracy degauss your probe in each of these cases After turning on the amplifier and allowing a 20 minute warm up period m Before connecting the probe to a conductor or changing conductors under test m Whenever an overload condition occurs m Whenever the probe is subjected to a strong external magnetic field Periodically during normal use Degauss and autobalance the current probe as follows 1 Verify that the current probe is connected to the amplifier Remove the current probe from the conductor under test Lock the probe slide closed see Figure 2 Beo Press the amplifier PROBE DEGAUSS AUTOBALANCE button NOTE The degauss procedure will fail if the amplifier is not properly connected to a 50 Q termination impedance After you have completed the oscilloscope adjustments and the degauss autoba lance procedure your system is ready to measure current
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