1 MD 300 / MD 310 SURGE PULSE CURRENT PROBE SET USER MANUAL 601-270B MD 300 / MD 310 SURGE PULSE CURRENT PROBE SET USER MANUAL MD 300 / 310 surge pulse current probe set CONTENTS 1 Safety terms and symbols 2 General safety summary 3Description 3.1 MD 300 3.2 MD 310 4 Part identification 5Operation 5.1 Short-circuit current pulse verification 5.2 Current pulse measurement during test 6 Specifications 6.1 MD 300 6.2 MD 310 7Terms 8Cleaning 9Addresses 5 6 7 7 8 10 11 12 13 14 7 8 15 16 18 1 SAFETY TERMS AND SYMBOLS Pleasetakenoteofthefollowingexplanationsofthesymbolsusedinorder toachievetheoptimumbenefitfromthismanualandtoensuresafetyduring operationoftheequipment. Thefollowingsymboldrawsyourattentiontoacircumstancewherenonobservationofthewarningcouldleadtoinconvenienceorimpairmentinthe performance. Example: Caution statements identify conditions or practices that could result in damage to this product or other property. Thefollowingsymboldrawsyourattentiontoacircumstancewherenonobservationofthewarningcouldleadtocomponentdamageordangertothe operatingpersonnel. Example: Warning statements identify conditions or practices that could result in injury or loss life. Symbolsusedontheproduct: Attention refertomanual 5 6 2 GENERAL SAFETY SUMMARY Studythefollowingsafetyprecautionscarefullytoavoidinjuryandprevent damagetotheprobeoranyproductsconnectedtoit. Observe the maximum working voltage and the resulting current: To avoidanyinjury,usepropercablesandconnectors. Do not operate in case of a suspected fault:Ifyoususpecttheprobemight bedamaged,haveitinspectedbyaqualifiedserviceengineerorreturnittoa Teseqservicecentrewithoutdelay. Never attempt to connect or disconnect the probe while the generator is in running mode. If the probe is used to observe EUT power output line, it is imperative to power off EUT mains first before connect or disconnect the probe! Highpeakcurrentflowstroughtheprobe!Toprotect against electric shock, use proper adapters, cables and accessories. Respectthedirectionofthecurrentflowwhichhasto be in line with the arrow sign on the probe. MD 300 / 310 surge pulse current probe set 3 DESCRIPTION 3.1 MD 300 TheMD300probehasbeenspeciallydesignedtoverifysurgecurrentpulseas specifiedinIEC/EN61000-4-5,ANSIC62.41andtheyderivates. TheadvantageoftheMD300currentprobeis,thatthemeasuringsystemis physicallyisolatedfromthecircuitundertest. TheMD300currentprobeisreadytouseimmediately,alongwiththedeliveredandalreadymountedcoaxcableandasimplememoryoscilloscope.The BNC-endplugneedstobeconnectedtothehighimpedanceor50Ωinputof theoscilloscope.Thentheconductorcarryingthesurgecurrenttobemeasured ispassedthroughtheholeinthecurrentprobe. ThedesignandsensitivityoftheMD300probeismadetomakeitsuitableto therangesofIEC/EN61000-4-5andANSIC62.41withoutadditionalattenuators. Theresultingvoltagewaveshapeontheoscilloscopewillthenbeanauthentical reproductionoftheactualcurrentwaveshapewithinthegivenaccuracy. OptionalFISCHERconnectorsareavailableformatchingthesafetybanana connectorsoftheshortingcabletotheSurgeOutputofthegenerator.For 7 8 monitoring the EUT current during a test, an additional IEC adaptor with the safety banana connectors can be connected to the generator EUT output for observation of one lead at a time. The nominal ratio is: 500:1 (into 1 MΩ system) or 1000:1 (into 50 Ω system) this is equal 1 V / 1000 A on scope. 3.2 MD 310 The MD 310 probe is specially adapted to verify Slow Damped Oscillatory Wave current pulses as specified in IEC / EN 61000-4-18 or ANSI / IEEE C37.90.1 and their derivates. The main advantage of the MD 310 current probe is, that the measuring system is physically isolated from the circuit under test. The MD 310 current probe is ready to use. It comes with a pre-mounted coaxial cable as well as the conductor carrying the SOW current to be measured. The BNC-end plug needs to be connected to the high-impedance input or 50 Ω input of an ordinary memory oscilloscope. Then the conductor carrying the SOW current to be measured needs to be connected between the EUT Power Output. The resulting voltage wave shape on the oscilloscope will then be an authentically reproduction of the actual current wave shape within the given accuracy. MD 300 / 310 surge pulse current probe set Optional FISCHER connectors are available for matching the safety banana connectors of the shorting cable to the Surge Output of the generator. The nominal ratio is: 10:1 (into 1 MΩ system) or 20:1 (into 50 Ω system) ; this is equal 1 V/20 A on a scope. 9 10 4 PART IDENTIFICATION The MD 300 / MD 310 set come with: Carry case Calibration certificate Manual Current probe Coax cable with SMA / BNC connector Short cable with safety banana connectors Recommended optional adapters: INA 6560 HV-Plug adaptor set (FISCHER to banana) INA 2042 HV-Plug adaptor set (LEMO to banana) INA 6554 IEC 320 single phase to safety banana adaptor leads 155-131 6 to 4 mm adaptor with safety banana connectors, 2 pcs. recommended NOTE: The carry case has spare place for all optional equipment MD 300 / 310 surge pulse current probe set 5OPERATION Never attempt to connect or disconnect the probe while the generator is running. Operation of a surge generator without a protective earth connection is forbidden! The surge current conductor must be insulated adequately for its voltage level. The conductive part of the current probe is insulated. Connect the BNC end of the probe’s coax cable to your oscilloscope. To prevent measurement errors, care has to be taken to the direction of the current flow which has to be in line with the arrow sign on the probe. 11 12 5.1 Short-circuit current pulse verification High peak current flows trough the probe! To protect against electrical shock, use only proper adapters, cables and accessories. Depending on the surge generator model, either the LEMO type or the FISCHERconnectors have got to be connected to the surge high and surge low output of the generator. Some generator might have safety banana plug connectors; therefore the short cable can be used. Use the short cable and put one end trough the hole of the probe and connect one end to the surge high and the other end to the surge low connector. MD 300 / 310 surge pulse current probe set 5.2 Current pulse measurement during test High peak current flows trough the probe! To protect against electrical shock, use only proper adapters, cables and accessories. During a surge test procedure, one lead at a time can be observed by usingthe optional EUT connector with the safety banana connectors. On the other end the EUT under test has to be connected. The two 6 mm adaptors can be used e.g. for EUT with screwed terminals The two 6 mm adaptors can be used e.g. for EUT with screwed terminals. 13 14 6SPECIFICATIONS 6.1 MD 300 Maximum peak current Maximum RMS current Nominal ratio Sensitivity Lower frequency (3 dB cut off) Higher frequency (3 dB cut off) Hole diameter Probe connector Scope coax cable Operating temperature Output impedance Accuracy 5000 A > 63 A 500:1 (into 1 MΩ system) 1000:1 (into 50 Ω system) 0.002 V / A (1 MΩ system) 0.001 V / A (50 Ω system) < 10 Hz > 20 MHz 8 mm SMA SMA to BNC 0 to 55°C 50 Ω < ±2% 6.2 MD 310 Max. peak current Max. RMS current Nominal ratio Sensitivity Lower frequency (3 dB cut off) Higher frequency (3 dB cut off) Hole diameter Probe connector Scope coax cable Operating temperature Output impedance Accuracy 400 A 10 A 10:1 (into 1 MΩ system) 20:1 (into 50 Ω system) 0.1 V / A (1 MΩ system) 0.05 V / A (50 Ω system) 30 Hz (approximate) 70 MHz (approximate) 6.3 mm SMA with SMA and BNC 0 to 65°C 50 Ω +1 / -0 % MD 300 / 310 surge pulse current probe set 7TERMES Sensitivity The considerations here involve the peak current to be measured, the oscilloscope sensitivity, and trade-offs imposed by other specifications. Maximum peak current This value is based primarily on the voltage-breakdown rating of the connector used. For instance, a 500 V rating on the connector gives a 5000 Amp peak current rating for a 0.1 volt-per-ampere current monitor. Maximum RMS current This value is based on heating considerations involving the long term stability of the internal resistance element in the current monitor. Approximate low and high frequency 3 dB points Due to the ac nature of current probes, the flat midband response will roll off at low frequency. The «corner» or «cut-off» frequency, at which the response is 3 dB down, is specified. Internal resonances determine the useful high frequency cut off point. Response is within ±3 dB at the specified high frequency limit. 15 16 8CLEANING Use a soft cloth, lightly fluid or lightly detergent to clean off any dirt. Take care not to damage the probe Do not immerse the probe in water Avoid using abrasive cleaners Avoid using chemicals containing benzene or similar solvents MD 300 / 310 surge pulse current probe set NOTES 18 Headquarters Teseq AG 4542 Luterbach, Switzerland T + 41 32 681 40 40 F + 41 32 681 40 48 sales @ teseq.com www.teseq.com Manufacturer Teseq AG 4542 Luterbach, Switzerland T + 41 32 681 40 40 F + 41 32 681 40 48 sales @ teseq.com China Teseq Company Limited T + 86 10 8460 8080 F + 86 10 8460 8078 chinasales @ teseq.com France Teseq Sarl T + 33 1 39 47 42 21 F + 33 1 39 47 40 92 francesales @ teseq.com Germany Teseq GmbH T + 49 30 5659 8835 F + 49 30 5659 8834 desales @ teseq.com Japan Teseq K.K. T + 81 3 5725 9460 F + 81 3 5725 9461 japansales @t eseq.com Singapore Teseq Pte Ltd. T + 65 6846 2488 F + 65 6841 4282 singaporesales @ teseq.com Switzerland Teseq AG T + 41 32 681 40 50 F + 41 32 681 40 48 sales @ teseq.com Taiwan Teseq Ltd. 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