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Probing Principles

Ampere-Second Product is the maximum
width of pulsed current that you can
measure when the pulse amplitude is
between the maximum continuous and
maximum pulsed current speci

fi

cations.

The maximum continuous speci

fi

cation

varies by frequency.

To determine if your measurement exceeds
the Ampere-second product, you must

fi

rst

determine the maximum allowable pulse width
or maximum allowable pulse amplitude, as
described in the following section.

P6021A Current Probe Instruction Manual

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Summary of Contents for P6021A

Page 1: ...x P6021A 60 MHz 15 Amp AC Current Probe ZZZ Instruction Manual P071300400 071 3004 00...

Page 2: ......

Page 3: ...P6021A 60 MHz 15 Amp AC Current Probe ZZZ Instruction Manual xx www tektronix com 071 3004 00...

Page 4: ...and pending Information in this publication supersedes that in all previously published material Specifications and price change privileges reserved TEKTRONIX and TEK are registered trademarks of Tek...

Page 5: ...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...

Page 6: ......

Page 7: ...s x Environmental Considerations xiii Preface xiv Documentation xiv Conventions Used in This Manual xiv Returning the Probe for Servicing xv Key Features 1 Installation 2 Controls and Indicators 3 Fun...

Page 8: ...surements 22 Measuring Inductor Turns Count 25 Specifications 27 Warranted Characteristics 28 Typical Characteristics 29 Nominal Characteristics 36 Performance Verification 37 Equipment Required 38 Eq...

Page 9: ...Table of Contents Remove the Compensation Box Cover 50 Midband Accuracy 53 HF Compensation 54 Maintenance 56 Cleaning 56 Index P6021A Current Probe Instruction Manual iii...

Page 10: ...Table of Contents iv P6021A Current Probe Instruction Manual...

Page 11: ...Connect and disconnect properly Connect the probe output to the measurement instrument before connecting the probe to the circuit under test Connect the probe reference lead to the circuit under test...

Page 12: ...ircuitry Do not touch exposed connections and components when power is present Do not operate in wet damp conditions Do not operate in an explosive atmosphere Keep product surfaces clean and dry vi P6...

Page 13: ...ditions or practices that could result in damage to this product or other property Symbols and terms on the product These terms may appear on the product DANGER indicates an injury hazard immediately...

Page 14: ...General safety summary The following symbol s may appear on the product viii P6021A Current Probe Instruction Manual...

Page 15: ...pable of rendering first aid and resuscitation is present Disconnect power To avoid electric shock switch off the instrument power then disconnect the power cord from the mains power Use care when ser...

Page 16: ...ge Directive 2006 95 EC EN 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use EN 61010 2 032 2002 Particular requirements for handheld current clamps...

Page 17: ...for electrical equipment for measurement control and laboratory use IEC 61010 2 032 2002 Particular requirements for handheld current clamps for electrical measurement and test equipment Equipment Ty...

Page 18: ...t Temporary condensation occurs only when the product is out of service Polution Degree 3 Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation These are shel...

Page 19: ...d at the product s end of life To avoid release of such substances into the environment and to reduce the use of natural resources we encourage you to recycle this product in an appropriate system tha...

Page 20: ...on functional check operating basics specifications performance verification Read this Instruction Manual In depth oscilloscope operation user interface help GPIB commands Access the online help from...

Page 21: ...g 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 an antistatic bag or wrap i...

Page 22: ...e measurements up to 60 MHz Key features include 60 MHz bandwidth 5 8 ns rise time 15 A p p continuous rating de rated with frequency 250 A peak pulse current pulse widths 10 s 150 V CAT Il bare wire...

Page 23: ...obe to the oscilloscope input connector 2 Push in the probe connector and turn it to the right to lock it in place To disconnect the probe turn the probe connector to the left and pull the probe away...

Page 24: ...the locked position you can degauss the probe and take measurements 2 Move the slider to the unlocked position to insert and remove conductors to and from the jaw 3 The jaw can accept a 5 mm 0 2 in d...

Page 25: ...ccess the area beyond the safe handling zone indicated by the shaded area when you take measurements WARNING To prevent probe damage do not drop the probe or subject it to impact WARNING Do not connec...

Page 26: ...A mV and 10 mA mV NOTE Some oscilloscopes have an attenuation control to match the oscilloscope scaling to the probe sensitivity range The correct oscilloscope attenuation settings to use with the P60...

Page 27: ...0 mm or less Do not insert conductors larger than 5 0 mm diameter into the probe jaw Damage to the probe may result To check that your probe functions correctly do the following 1 Connect the probe t...

Page 28: ...Specifications are provided where appropriate so that you can choose the accessory that best fits your needs Standard Accessories Probe Ground Lead 1 Fasten the small clip to the ground stub on the p...

Page 29: ...old the probe the accessories and the instruction manual 1 Place the probe accessories and manual in the carrying case 2 Close the carrying case to transport the accessories to another location or for...

Page 30: ...nance instructions Reorder Tektronix part number 071 3004 xx Manuals in the languages listed below are available for this product Other languages may also be available check the Tektronix Web site at...

Page 31: ...e performance verification procedures The BNC connector allows for easy connections to current sources and the conductor bar inside the fixture fits in the jaw of the current probe To use the current...

Page 32: ...e probe calibration or deskew procedures The deskew procedures compensate for gain errors and timing differences between current and voltage probes Refer to your oscilloscope manual or fixture documen...

Page 33: ...on C5 Calibration Service 5 years Option D1 Calibration Data Report Option D3 Calibration Data Report 3 years with Option C3 Option D5 Calibration Data Report 5 years with Option C5 Option R3 Repair S...

Page 34: ...he probe transformer at the probe end of the cable This allows you to move the ground connection closer to the circuit you are measuring thereby improving high frequency response The ground lead clips...

Page 35: ...p the ground lead to the ground post at the bottom of the probe head 2 Connect the alligator end of the clip to the circuit ground 3 Clamp the probe around the circuit conductor P6021A Current Probe I...

Page 36: ...al turns of the conductor under test around the probe as shown The signal is multiplied by the number of turns around the probe 2 Divide the displayed amplitude by the number of turns For example if a...

Page 37: ...ide of your circuit can cause measurement errors To avoid this 1 Measure on the low or ground side of your circuit 2 Orient the probe to measure conventional current flow from positive to negative NOT...

Page 38: ...the probe See Table 2 on page 29 Maximum Pulsed Current ImaxP is the maximum peak value of pulsed current the probe can accurately measure regardless of how short within bandwidth limitations the pul...

Page 39: ...ntinuous and maximum pulsed current specifications The maximum continuous specification varies by frequency To determine if your measurement exceeds the Ampere second product you must first determine...

Page 40: ...e 2 Divide the Ampere second or Ampere microsecond specification for the probe by the measured peak current of the pulse The quotient is the maximum allowable pulse width PWmax 3 Check that the pulse...

Page 41: ...or the range setting of the probe by the pulse width The quotient is the maximum allowable pulse amplitude the peak amplitude of the measured pulse must be less than this value For example the P6021A...

Page 42: ...tion Examples Application Examples This section explains ways to use your probe in common troubleshooting tasks and how to extend the use of your measurement system 21 P6021A Current Probe Instruction...

Page 43: ...mely low output impedance connected to an inductor that has low resistance 1 Connect the inductor across the output terminals of the pulse generator 2 Maintain a constant voltage across the inductor 3...

Page 44: ...ined by the slope of the current ramp shown here 5 Calculate the inductance using the following formula where L is the inductance in henries E is the voltage of the pulse generator dt is the change in...

Page 45: ...by the time constant of the charge curve The current ramp shows how the values for the inductance formula are obtained Use this formula to calculate the inductance based on the current measurement whe...

Page 46: ...rent limited source as shown 2 Measure the input current on one of the inductor leads 3 Clamp the current probe around the inductor and note the current value The number of turns is equal to the ratio...

Page 47: ...he test coil into the current probe so that the currents oppose each other as shown You must observe the polarity of coil current to determine whether the test coil has less or more turns than the ref...

Page 48: ...C 5 C The probe is connected to a host instrument with an input impedance of 1 M The probe must have a warm up period of at least 20 minutes and be in an environment that does not exceed the limits d...

Page 49: ...ith the symbol Table 1 Warranted electrical characteristics Characteristic Description Midband accuracy 3 Rise time 10 to 90 5 8 ns Bandwidth 3 dB 2 mA mV 1 kHz to 60 MHz guaranteed 450 Hz to 60 MHz t...

Page 50: ...150 Hz and 100 kHz Maximum DC saturation current 0 5 A Maximum peak pulse current 10 mA mV range 250 A peak 2 mA mV range 150 A peak not to exceed 500 A s or 5 ARMS See Figure 3 on page 32 Insertion i...

Page 51: ...e on bare wire 150 V CAT lI Maximum voltage on insulated wire 300 V CAT lI Maximum Amp Second product 500 A s See page 17 Maximum Current Limits Figure 1 Frequency derating continuous peak current ver...

Page 52: ...Specifications Figure 2 Typical insertion impedance versus frequency 31 P6021A Current Probe Instruction Manual...

Page 53: ...Specifications Figure 3 Maximum peak pulse versus pulse width P6021A Current Probe Instruction Manual 32...

Page 54: ...to 75 C 40 to 167 F Humidity Operating 5 95 RH tested up to 30 C 86 F 5 85 RH tested at 30 C to 50 C 86 F to 122 F Nonoperating 5 95 RH tested up to 30 C 86 F 5 85 RH tested at 30 C to 75 C 86 F to 16...

Page 55: ...mm 30 5 mm 40 6 mm 2 9 in 1 2 in 1 6 in Probe head 148 mm 15 2 mm 30 5 mm 5 8 in 0 6 in 1 2 in Jaw opening maximum measurable conductor size 5 mm 0 20 in Cable length from probe head to compensation...

Page 56: ...Specifications Figure 4 Mechanical dimensions 35 P6021A Current Probe Instruction Manual...

Page 57: ...imits Table 5 Nominal electrical characteristics Characteristic Description Input coupling AC Current range 2 mA mV 5 Ap p 10 mA mV 15 Ap p Power requirement Supplied by host instrument Termination Te...

Page 58: ...ow verify the warranted specifications of the probe listed below The recommended calibration interval is one year Midband accuracy Rise time Bandwidth Time constant Perform the following verification...

Page 59: ...ave output ACV 0 to 2 VRMS 50 kHz sine wave output Rise time 1 ns Fluke 9100 Digital multimeter DMM 2 volt range 1 accuracy Keithley 2700 HF current loop 50 0 5 BNC male connector 067 2396 xx BNC cabl...

Page 60: ...urn on the oscilloscope 2 Connect the probe to any channel of the oscilloscope 3 Set the oscilloscope coupling to AC 4 Power on the remaining test equipment 5 Allow 20 minutes for the equipment to war...

Page 61: ...ustments section See page 49 Setup 1 Connect a BNC to Dual Banana adapter to the digital multimeter DMM input 2 Connect the Leveled Sinewave Output of the calibration generator to a BNC T connector an...

Page 62: ...he actual test current Itest 4 Disconnect the cable at the BNC adapter attached to the DMM 5 Connect the probe output to the BNC adapter attached to the DMM 6 Clamp the current probe around the calibr...

Page 63: ...shown 10 Record the Error value in the Test Record Example 11 Set the probe to the 10 mA mV range 12 Record the exact measurement of the DMM as M3 13 Compute the Error using the measured amplitude va...

Page 64: ...rise time Rise Time 1 Connect a BNC cable to the rear panel signal output of the calibration generator 2 Connect the other end of the BNC cable to the HF current loop 3 Set the generator output to a 1...

Page 65: ...displayed on the oscilloscope Record the rise time measurement in the Test Record 9 Set the probe to the 10 mA mV range and measure the rise time Record the rise time measurement in the Test Record B...

Page 66: ...generator output 3 Set the generator output to 1 ARMS 50 Hz square wave 4 Set the probe to the 2 mA mV range 5 Set the oscilloscope to Probe setup to current 2X attenuation Vertical sensitivity to 40...

Page 67: ...g from the peak of the rising edge 100 down to the 37 amplitude level of the output waveform 3 Record the time constant in the Test Record 4 Calculate the low frequency limit of the probe bandwidth us...

Page 68: ...Set the oscilloscope to Probe setup to current 10X attenuation Vertical sensitivity to 500 mA div Horizontal to 1 ms div 8 Repeat steps 2 through 5 for the 10 mA mV range 9 Disable the generator outp...

Page 69: ...Range Minimum Incoming Outgoing Maximum Midband accuracy error 2 mA mV 3 3 10 mA mV 3 3 Rise time 2 mA mV NA 5 8 ns 10 mA mV NA 5 8 ns Bandwidth calculated High limit 2 mA mV 60 MHz NA 10 mA mV 60 MH...

Page 70: ...dures CAUTION To avoid ESD damage to the probe use an antistatic wrist strap and work at a static approved workstation when handling the probe Equipment Required Refer to the Performance Verification...

Page 71: ...Use a 2 flat bladed screwdriver to separate the cover halves to gain access to the adjustments 1 Insert the screwdriver blade into the slot and gently pry the cable cover away from the compensation b...

Page 72: ...Adjustments 2 Use the screwdriver blade to depress each tab as you separate the cover halves 51 P6021A Current Probe Instruction Manual...

Page 73: ...Adjustments 3 Remove the two halves and then remove the metal shield P6021A Current Probe Instruction Manual 52...

Page 74: ...1 Set the calibrator output to 2 VRMS 50 kHz 2 Set the digital multimeter DMM to measure AC volts 2 0 V range 3 Set the probe to the 2 mA mV range 4 Measure the output amplitude on the DMM 5 Adjust t...

Page 75: ...easure rise time See page 43 Rise Time and Bandwidth 2 Set the probe to the 2 mA mV range 3 Display one waveform cycle 4 Adjust the HF Comp control in the compensation box for the flattest response P6...

Page 76: ...s NOTE You may need to readjust the compensation box HF Comp adjust for optimal rise time and flatness 6 Set the probe to the 10 mA mV range and verify performance If necessary adjust the probe until...

Page 77: ...ing agents they may damage the probe Avoid using chemicals that contain benzine benzene toluene xylene acetone or similar solvents Clean the exterior surfaces of the probe with a dry lint free cloth o...

Page 78: ...Maintenance 57 P6021A Current Probe Instruction Manual...

Page 79: ...acy adjustment 53 DC gain accuracy check 40 Deskew fixture 11 Documentation xiv E Equipment required performance verification 38 Equipment setup 39 F Frequency derating 17 Functional check 6 G Groundi...

Page 80: ...robing principles 15 R Record test 48 Related documentation xiv Rise time check 43 S Safety Summary v Service options 12 returning the probe xv Slider and conductor jaw 3 Specifications 27 nominal 36...

Page 81: ...Mouser Electronics Authorized Distributor Click to View Pricing Inventory Delivery Lifecycle Information Tektronix P6021A...

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