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Tektronix TCP0030, Instruction Manual

The Tektronix TCP0030 is a high-quality current probe designed for accurate and reliable current measurement. To fully understand and use this product, a comprehensive Instruction Manual is a must-have. Visit our website to download the free manual and unlock the full potential of your Tektronix TCP0030.

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Table of Contents

Table of Contents

General Safety Summary ...................................................................................................................

v

Service Safety Summary ..................................................................................................................

vii

Environmental Considerations ............................................................................................................

viii

Preface.......................................................................................................................................

x

Documentation.........................................................................................................................

x

Conventions Used in this Manual .....................................................................................................

x

Returning the Probe for Servicing ....................................................................................................

xi

Key Features ...............................................................................................................................

1

Installation ..................................................................................................................................

2

Connecting to the Host Instrument ...................................................................................................

2

Degaussing the Probe ................................................................................................................

3

Probe Controls and Indicators ........................................................................................................

5

Functional Check ..........................................................................................................................

10

Basic Operation............................................................................................................................

11

Application Examples......................................................................................................................

13

Inductance Measurements ..........................................................................................................

14

Measuring Inductor Turns Count ....................................................................................................

17

Accessories and Options ..................................................................................................................

19

Using Standard Accessories ........................................................................................................

19

TCP0030 Current Probe Instruction Manual

i

Summary of Contents for TCP0030

Page 1: ...TCP0030 120 MHz 30 A AC DC Current Probe Instruction Manual P071181200 071 1812 00 ...

Page 2: ......

Page 3: ...TCP0030 120 MHz 30 A AC DC Current Probe Instruction Manual www tektronix com 071 1812 00 ...

Page 4: ...d 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 Tektronix Inc Contacting Tektronix Tektronix Inc 14200 SW Karl Braun Drive P O Box 500 Beaverton OR 97077 USA For product information sales service and technical support In North America call 1 800 833 ...

Page 5: ...s 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 ...

Page 6: ......

Page 7: ... Returning the Probe for Servicing xi Key Features 1 Installation 2 Connecting to the Host Instrument 2 Degaussing the Probe 3 Probe Controls and Indicators 5 Functional Check 10 Basic Operation 11 Application Examples 13 Inductance Measurements 14 Measuring Inductor Turns Count 17 Accessories and Options 19 Using Standard Accessories 19 TCP0030 Current Probe Instruction Manual i ...

Page 8: ...mmon Mode Noise Magnetic Field Errors 33 AC and DC Coupling 34 Maximum Current Limits 35 Specifications 39 Warranted Characteristics 40 Typical Characteristics 41 Nominal Characteristics 47 Certifications and Compliances 47 Performance Verification 50 Equipment Required 51 Making the DC Current Loop 52 Equipment Setup 53 DC Gain Accuracy 54 Rise Time and Bandwidth 59 Test Record 62 ii TCP0030 Curr...

Page 9: ...equired 63 Equipment Setup 63 DC Gain Accuracy 64 Maintenance 66 Troubleshooting 66 Cleaning 66 Repairing the Probe 67 Probe Head Disassembly 69 Replacement 72 Reassembly 76 Replaceable Parts 77 Index TCP0030 Current Probe Instruction Manual iii ...

Page 10: ...Table of Contents iv TCP0030 Current Probe Instruction Manual ...

Page 11: ...onnect the probe reference lead to the circuit under test before connecting the probe input Disconnect the probe input and the probe reference lead from the circuit under test before disconnecting the probe from the measurement instrument Observe All Terminal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings informa...

Page 12: ...ION Caution statements identify conditions 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 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 inclu...

Page 13: ...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 Servicing With Power On Dangerous voltages or currents may exist in this product Disconnect power remove battery if applicable and disconnect test leads before removing protective panels soldering or rep...

Page 14: ...operly handled at the product s end of life In order 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 that will ensure that most of the materials are reused or recycled appropriately The symbol shown below indicates that this product complies with the European Union s requirements a...

Page 15: ...bstances This product has been classified as Monitoring and Control equipment and is outside the scope of the 2002 95 EC RoHS Directive This product is known to contain lead cadmium mercury and hexavalent chromium TCP0030 Current Probe Instruction Manual ix ...

Page 16: ...e Operation 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 the Help menu on the host instrument To access the documentation that is installed on your instrument click Start in the taskbar and select Programs TekApplications Conventions Used in this M...

Page 17: ...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 it to protect it from dampness 3 Place the probe into the box and stabilize it with light packing material 4 Seal the carton with shipping tape 5 Refer to Contacting Tektronix at the beginning of this ...

Page 18: ...Preface xii TCP0030 Current Probe Instruction Manual ...

Page 19: ... AC DC Measurement capability 50 A peak pulse current pulse widths 10 μs 5 A and 30 A range settings 1 mA sensitivity on TekVPI oscilloscopes that support the 1 mV div setting 1 DC Accuracy typical One button degauss autozeroing Probe control through the TekVPI oscilloscope menus or remotely through the oscilloscope Direct scaling and unit readout on host instruments AC coupling on TekVPI oscillos...

Page 20: ...n 3 8 mm diameter into the probe jaw Damage to the probe may result 1 Slide the probe into the TekVPI receptacle The probe snaps in when fully engaged 2 To disconnect press the latch button and pull the probe away from the instrument When the probe is connected the host instrument reads information from the probe and identifies the device All of the probe LEDs light briefly for a quick visual chec...

Page 21: ...egauss is needed by flashing red 2 To degauss the probe press the Degauss AutoZero button on the probe or in the Degauss window on the host instrument NOTE The DC gain and offset errors are not guaranteed when this LED flashes red 3 The multicolor Degauss AutoZero status LED glows green to indicate a successful degauss routine was run and that the probe is in normal operating mode TCP0030 Current ...

Page 22: ...cases After you turn on the measurement system and allow a 20 minute warm up period Before you connect the probe to a conductor Whenever a current or thermal overload condition occurs Whenever you subject the probe to a strong external magnetic field 4 TCP0030 Current Probe Instruction Manual ...

Page 23: ...play the Degauss AutoZero status NOTE The probe will retain the range state and will restore it when it is power cycled Jaw Open LED 1 If the Jaw Open LED glows the probe slider is unlocked 2 Lock the probe slider to accurately measure current or to degauss the probe CAUTION Do not measure conductors larger than 3 8 mm diameter Damage to the probe jaws may result TCP0030 Current Probe Instruction ...

Page 24: ...temperature of the probe has been exceeded Flashes red and orange both the maximum input continuous current limit and the safe operating temperature of the probe have been exceeded CAUTION Do not subject the probe to conditions that cause the Overload LED to light for extended periods Quick Tip An input current overload can magnetize the probe Always degauss the probe after an overload 6 TCP0030 C...

Page 25: ...ress the Range button to select between the 5 A and 30 A current range settings The green LEDs indicate the range selected The range and units are also displayed on the oscilloscope screen TCP0030 Current Probe Instruction Manual 7 ...

Page 26: ... are not guaranteed when this LED flashes orange The Degauss AutoZero function also clears AutoZeroes any DC offset in the probe To degauss the probe do the following 1 Disconnect the probe from the current source 2 Press the Degauss AutoZero button to initiate the degauss routine The LED glows green after successfully completing the Degauss AutoZero routine 8 TCP0030 Current Probe Instruction Man...

Page 27: ...illoscope Use this screen to check or change the settings on your probe NOTE The Probe Setup screen may include buttons to access other probe information depending on the oscilloscope model 2 Press the Menu button again to close the Probe Setup screen TCP0030 Current Probe Instruction Manual 9 ...

Page 28: ...ot insert conductors larger than 3 8 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 to any channel of the oscilloscope 2 Press the Degauss AutoZero button 3 Clamp the probe to your circuit 4 Set the oscilloscope to display the probe channel 5 Adjust the oscilloscope or use the Autoset function to displ...

Page 29: ...intenance section of this manual for information on how to properly clean the probe head transformer surfaces 1 Check the oscilloscope display before connecting the probe to a conductor If there is a DC offset degauss the probe See page 3 Degaussing the Probe 2 Close and lock the probe jaw over the conductor For correct polarity reading connect the probe so that the current flow from positive to n...

Page 30: ...he Ground Lead to improve EMI rejection at high frequencies 1 Clip the Ground Lead to the ground post at the bottom of the probe head 2 Connect the alligator end of the clip to the DUT chassis ground 12 TCP0030 Current Probe Instruction Manual ...

Page 31: ...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 TCP0030 Current Probe Instruction Manual 13 ...

Page 32: ...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 Clamp the current probe over one of the source leads NOTE If the probe impedance is a significant part of the total circuit inductance measurement accuracy will be affected Refer to the probe specifi...

Page 33: ...fined 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 time and di is the change in current TCP0030 Current Probe Instruction Manual 15 ...

Page 34: ...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 where L is the inductance in henries τ is the time required for the current to rise or fall 63 2 of the total current value and R is the source resistance of the pulse generator 16 TCP0030 Current Probe ...

Page 35: ...rrent 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 of coil current to input current The accuracy of this method is limited by the current measurement accuracy TCP0030 Current Probe Instruction Manual 17 ...

Page 36: ...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 reference coil The turns are calculated by using the formula where N2 is the number of turns in the test coil N1 is the number of turns in the reference coil Im is the measured coil current and I1 is the...

Page 37: ...e provided where appropriate so that you can choose the accessory that best fits your needs Using Standard Accessories Probe Ground Lead 1 Fasten the small clip to the ground stub on the probe body 2 Clip the alligator clip to your circuit 3 Attach the probe to your circuit Reorder Tektronix part number 196 3120 XX qty 1 TCP0030 Current Probe Instruction Manual 19 ...

Page 38: ...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 storage Reorder Tektronix part number 016 1952 XX 20 TCP0030 Current Probe Instruction Manual ...

Page 39: ... protective cover 2 Close the protective cover with the strap to secure the cover to the probe Reorder Tektronix part number 016 1923 XX Instruction Manual The instruction manual provides operating and maintenance instructions Reorder Tektronix part number 071 1812 XX English 071 1813 XX Japanese 071 1814 XX Simplified Chinese TCP0030 Current Probe Instruction Manual 21 ...

Page 40: ...nce verification procedures The BNC connector allows for easy connections to current sources Reorder Tektronix part number 015 0601 50 1 Connect the current loop to the current supply 2 Connect the probe to the loop 3 Power on the current supply 4 Follow the procedure for the specific task that you are performing for example Performance Verification or Adjustments 22 TCP0030 Current Probe Instruct...

Page 41: ...f 20 1 or 1000 1 The CT 4 provides a means to measure high amplitude AC currents 1 Clamp the CT 4 transformer around the conductor you that want to test 2 Clamp the TCP0030 Probe onto the measurement port on the back of the CT 4 3 Proceed with your measurements Reorder Tektronix part number CT 4 TCP0030 Current Probe Instruction Manual 23 ...

Page 42: ...age probes Refer to your oscilloscope manual or fixture documentation for instructions Reorder Tektronix part number 067 1686 00 Compensation Box Tool Use this tool to open the compensation box when servicing the probe replacing the switch panel cable or compensation box Refer to the compensation box replacement procedures for instructions for using the tool Reorder Tektronix part number 003 1892 ...

Page 43: ...ion 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 Service 3 years Option R5 Repair Service 5 years Manual Options Option L0 English language Instruction Manual Option L5 Japanese language Instruction Manual Option L7 Simplified Chinese language Instruction Manual TCP0030 Current Probe Instruction Manua...

Page 44: ...that the conductor in the probe jaws is completely unpowered Any current flowing through the conductor will cause a residual offset in the current probe and may cause an inaccurate measurement or an error condition The impedance of your circuit must be higher than 10 mΩ for the degauss procedure to work The probe core will not saturate with a circuit impedance of less than 10 mΩ While degauss occu...

Page 45: ...n insulating material that is capable of isolating the voltage present on the conductor Lacquer coatings like those typically found on transformer windings do not provide sufficient reliable insulation for use with current probes The lacquer coating can be easily nicked or damaged compromising the insulating capabilities of the lacquer coating Do not force the slide closed Damage to the probe may ...

Page 46: ...conductors Be careful not to pinch a conductor in the probe jaws 3 Measure the current Conventional current flows from positive to negative A waveform above the baseline indicates that the conductor with the conventional current flow in the direction of the probe arrow is carrying the greater current 28 TCP0030 Current Probe Instruction Manual ...

Page 47: ... rating of the connected probe you can extend the AC and DC current ranges without exceeding specified limits by using the following methods WARNING To avoid personal injury or equipment damage do not exceed the specified electrical limits of the probe or any applicable accessories When using multiple conductors do not exceed current limits on either conductor TCP0030 Current Probe Instruction Man...

Page 48: ...be jaws An uninsulated conductor is any conductor without insulation or without insulation rated for the voltage present on the conductor under test To supply additional bucking current 1 Place a second conductor that has a pure DC component of known value in the probe jaw with the conductor under test 2 Orient the second conductor so that the bucking current flows in the opposite direction of the...

Page 49: ...limit To increase the value of the bucking current 1 Wind multiple turns of the second conductor around the probe The bucking current is equal to the current flowing in the conductor multiplied by the number of turns wound around the probe For example if the second conductor has a current of 100 mA DC and is wrapped around the probe five times the DC bucking current is 100 mA multiplied by 5 or 50...

Page 50: ...nal is multiplied by the number of turns around the probe 2 To obtain the actual current value divide the displayed amplitude by the number of turns For example if a conductor is wrapped around the probe three times and the oscilloscope shows a reading of 3 mA DC the actual current flow is 3 mA divided by 3 or 1 mA DC NOTE Winding more turns around the probe increases the insertion impedance and r...

Page 51: ... at high frequencies and strong magnetic fields on the supply side 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 TCP0030 Current Probe Instruction Manual 33 ...

Page 52: ...pling removes the DC component from the displayed signal 1 This low frequency square wave is displayed using AC coupling The signal exhibits low frequency rolloff 2 Press the DC Coupling button to display the waveform as truly square CAUTION When you use AC coupling make sure that the input DC current does not exceed the probe specifications 34 TCP0030 Current Probe Instruction Manual ...

Page 53: ... probe See Table 2 on page 41 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 pulse duration is Maximum Continuous Current ImaxC is 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...

Page 54: ...f your measurement exceeds the Ampere second product you must first determine the maximum allowable pulse width or maximum allowable pulse amplitude as described in the following section 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 pro...

Page 55: ... Ampere second or Ampere microsecond specification for the range setting of the TCP0030 probe by the measured peak current of the pulse The quotient is the maximum allowable pulse width PWmax 3 Check that the pulse width at the 50 point of the measured signal is less than the calculated maximum allowable pulse width PWmax TCP0030 Current Probe Instruction Manual 37 ...

Page 56: ...g of the TCP0030 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 TCP0030 probe has a maximum Ampere second product of 500 A ms in the 30 A range setting If a pulse measured with the probe has a width of 11 ms the maximum allowable peak current would be 500 A ms divided by 11 ms or 4...

Page 57: ...C The probe is connected to a host instrument with an input impedance of 1 M Ω The probe must have a warm up period of at least 20 minutes and be in an environment that does not exceed the limits described See Table 1 Specifications for the TCP0030 current probe fall into three categories warranted typical and nominal characteristics TCP0030 Current Probe Instruction Manual 39 ...

Page 58: ...e tested requirements Warranted characteristics that have checks in the Performance Verification section are marked with the symbol Table 1 Warranted electrical characteristics Characteristic Description DC gain accuracy 3 typical 1 at 23 C 5 C Rise time 10 to 90 2 92 ns Bandwidth DC to 120 MHz 40 TCP0030 Current Probe Instruction Manual ...

Page 59: ... A Range 5 A RMS 30 A Range 30 A RMS Maximum peak current See Figure 3 50 A maximum peak pulse Displayed RMS Noise 75 µA RMS Limit measurement bandwidth to 20 MHz Insertion impedance See Figure 2 Aberrations 50 ns 10 p p 50 ns 5 p p Signal delay 14 5 ns Maximum voltage on bare wire Use on insulated conductors only Maximum Amp Second product See graph on page 49 5 A Range 50 A µs 30 A Range 500 A µ...

Page 60: ...Specifications Figure 1 Frequency derating peak current versus frequency 42 TCP0030 Current Probe Instruction Manual ...

Page 61: ...Specifications Figure 2 Typical differential input impedance versus frequency TCP0030 Current Probe Instruction Manual 43 ...

Page 62: ...Specifications Figure 3 Maximum peak pulse versus pulse width 44 TCP0030 Current Probe Instruction Manual ...

Page 63: ...d at 30 C to 75 C 86 F to 167 F Altitude Operating Up to 3000 meters 10 000 feet Nonoperating Up to 12 192 meters 40 000 feet Table 4 Typical mechanical characteristics Characteristic Description Dimensions compensation box 107 mm 41 mm 26 mm 4 2 in 1 6 in 1 0 in Dimensions probe head 197 mm 1 6 cm 3 2 cm 7 77 in 0 625 in 1 25 in Dimensions cable length 2 m 79 in from the probe head to the compens...

Page 64: ...Specifications 46 TCP0030 Current Probe Instruction Manual ...

Page 65: ... the TekVPI interface Certifications and Compliances EC Declaration of Conformity Low Voltage Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities Low Voltage Directive 73 23 EEC amended by 93 68 EEC EN 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use EN 61010 2 032 2002 Particul...

Page 66: ... Particular requirements for electrical equipment for measurement control and laboratory use Part 1 CAN CSA C22 2 No 1010 2 032 96 Particular Requirements for Hand Held Current Clamps for Electrical Measurement and Test Additional Compliance IEC 61010 1 2001 Safety requirements for electrical equipment for measurement control and laboratory use IEC 61010 2 032 2002 Particular requirements for hand...

Page 67: ...nonconductive pollution occurs Occasionally a temporary conductivity that is caused by condensation must be expected This location is a typical office home environment 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 sheltered locations where neither temp...

Page 68: ...hat follow verify the warranted specifications of the probe listed below The recommended calibration interval is one year DC gain accuracy Rise time Bandwidth Perform the following verification procedures in the order listed 50 TCP0030 Current Probe Instruction Manual ...

Page 69: ...Risetime 500 ps pulse width 100 ns amplitude 10 Vpp into 50 Ω Picosecond Labs 2600 Calibrator DCV 0 2 accuracy 0 to 1 5 V square wave output ACA 0 25 accuracy 0 to 6 A square wave output Wavetek 9100 DC Current loop 5 turns 18 AWG coated wire on 3 inch form See instructions that follow HF Current loop 50 Ω 0 5 BNC male 015 0601 50 BNC to Dual banana adapter 103 0090 00 BNC Cable 50 Ω 0 76 m 30 in ...

Page 70: ...roximately 3 inches in diameter 1 Wind exactly 5 turns of 18 coated wire around the form 2 Scrape about a half inch of coating off of the ends of the wire NOTE Ensure that the current loop has exactly 5 turns A significant error will result for each turn variance from 5 turns 52 TCP0030 Current Probe Instruction Manual ...

Page 71: ...2 Connect the probe to any channel of the oscilloscope 3 Press the Degauss Autozero button 4 Set the oscilloscope coupling to DC 5 Power on the current source and the pulse generator 6 Allow 20 minutes for the equipment to warm up 7 Photocopy the test record and use it to record the test results See page 62 TCP0030 Current Probe Instruction Manual 53 ...

Page 72: ... by first measuring the DC gain accuracy of the oscilloscope and then subtracting that value from the probe gain accuracy measurement If the measurements are out of the specified limits in the test record refer to the Adjustments section See page 63 54 TCP0030 Current Probe Instruction Manual ...

Page 73: ...tween the adapter and the oscilloscope Leave the probe connected to keep it warmed up 3 Set the oscilloscope Vertical sensitivity to 500 mV div Vertical position and offset to 0 0 V Horizontal to 400 or 500 us div trigger 50 Acquisition mode to average 16 Input to 1 M Ω and coupling to DC Automeasurement to display AMPLITUDE TCP0030 Current Probe Instruction Manual 55 ...

Page 74: ... the output amplitude a 7 Calculate the oscilloscope DC gain accuracy b using the measured amplitude value from step 6 and the formula shown Use the result to calculate the probe DC gain accuracy in step 19 8 Disable the calibrator output 9 Remove the BNC cable from the test setup Example 56 TCP0030 Current Probe Instruction Manual ...

Page 75: ...ent loop to the calibrator 12 Set the calibrator to AC Amps 13 Degauss the probe and then connect it to the 5 turn current loop 14 Set the probe range to 5 A 15 Set the oscilloscope Vertical sensitivity to 500 mA div Trigger at 50 Acquisition mode to average 16 Coupling to DC Automeasurement to display AMPLITUDE TCP0030 Current Probe Instruction Manual 57 ...

Page 76: ...form amplitude c 19 Use the measured waveform amplitude c from step 18 and the oscilloscope DC gain accuracy value b from step 7 to calculate the probe DC gain accuracy d 20 Record the calculated probe DC gain accuracy value d in the test record 21 Set the probe range to 30 A 22 Set the oscilloscope to 5 A div 23 Measure the waveform amplitude e 5 A Range Example 58 TCP0030 Current Probe Instructi...

Page 77: ...be DC gain accuracy f 25 Record the calculated probe DC gain accuracy value f in the test record 30 A Range Rise Time and Bandwidth This procedure verifies that the probe meets the rise time specification on both of the current ranges The bandwidth of the probe is then calculated using the measured probe rise time TCP0030 Current Probe Instruction Manual 59 ...

Page 78: ...HF current loop 3 Set the pulse generator output and pulse width to maximum 4 Set the oscilloscope Vertical sensitivity to 200 mA div Horizontal to 2 ns div Trigger at 50 Averaging on 32 Coupling to DC Automeasurement to Rise Time 5 Set the probe range to the 5 A setting 6 Degauss the probe 60 TCP0030 Current Probe Instruction Manual ...

Page 79: ...ed indicator on the probe points away from the pulse generator 8 Record the rise time measurement in the Test Record 9 Calculate the probe bandwidth using the measured rise time in the following formula 10 Record the calculated bandwidth value in the test record TCP0030 Current Probe Instruction Manual 61 ...

Page 80: ...ian Performance test Range Test Current Calibrator squarewave output Expected output Mini mum Incom ing Outgo ing Maxi mum 5 A 1 5 A 0 3 Apk 3 Ap p 3 3 DC Gain Accuracy 30 A 15 A 3 0 Apk 30 Ap p 3 3 Rise time 5 A 1 A 500 ps 2 92 ns NA 2 92 ns Bandwidth 5 A NA NA 120 MHz 120 MHz NA 62 TCP0030 Current Probe Instruction Manual ...

Page 81: ...o the Performance Verification procedure for the equipment required You also need an insulated flat bladed adjustment tool Equipment Setup Refer to the Performance Verification procedure for the equipment setup CAUTION To avoid ESD damage to the probe use an antistatic wrist strap and work at a static approved workstation when handling the probe TCP0030 Current Probe Instruction Manual 63 ...

Page 82: ...Gain Accuracy Test in the Performance Verification procedure See page 54 DC Gain Accuracy 2 Calculate the waveform target value g using the calculated oscilloscope gain accuracy value b from step 7 of the performance test and the formula shown 3 Adjust the 5 A DC gain control in the probe compensation box to the calculated target value from step 2 0 02A 64 TCP0030 Current Probe Instruction Manual ...

Page 83: ...tude 8 Calculate the waveform target value h using the calculated oscilloscope gain accuracy value b from step 7 of the performance test and the formula shown 9 Adjust the 30 A DC gain control in the probe compensation box to the calculated target value from step 8 0 2A 10 Disconnect the probe from the current source TCP0030 Current Probe Instruction Manual 65 ...

Page 84: ...le cause LEDs on the probe do not light The oscilloscope channel may be bad Try another channel or another oscilloscope If the probe still does not work the probe is defective and must be returned to Tektronix for repair An error message displays on the oscilloscope The message will describe the cause and solution For example if the Degauss Needed message appears perform the degauss procedure Clea...

Page 85: ... spaces on the probe use only enough solution to dampen the swab or cloth Do not use abrasive compounds on any part of the probe Repairing the Probe The subassemblies listed below can be replaced on the probe The replacement procedures are on the following pages Replaceable component Procedures to use Transformer Probe Head Disassembly Transformer Replacement Cable Circuit Board Assembly Probe Hea...

Page 86: ...ewdriver 2 Phillips Soldering iron 25 W Cleaner Isopropyl alcohol Lubricant Silicone based grease Compensation box separator 1 Order Tektronix part number 003 1892 00 See page 24 Compensation Box Tool 1 Required for cable switch panel and compensation box replacement procedures 68 TCP0030 Current Probe Instruction Manual ...

Page 87: ...rom the bottom of the probe 2 Pull the strain relief boot back 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 Move the probe slide assembly to the open position See note above TCP0030 Current Probe Instruction Manual 69 ...

Page 88: ...of the probe with one hand 5 With your other hand pivot the rear top half of the probe body up 6 Slide the top half forward and off of the bottom half of the probe body 7 Remove the metal ball 70 TCP0030 Current Probe Instruction Manual ...

Page 89: ...side down push the slide back slightly and remove the slide You now have access to the transformer and cable circuit board assembly Use the following procedures to replace these components TCP0030 Current Probe Instruction Manual 71 ...

Page 90: ...dge of the circuit board and transformer enough to clear the probe body 2 Pull the transformer socket straight off the circuit board pins 3 Align the socket of the new transformer to the circuit board pins and connect them 4 Seat the components back in the probe 72 TCP0030 Current Probe Instruction Manual ...

Page 91: ...f 3 Unsolder the probe body connection on the circuit board Be careful not to damage the circuit board 4 Lift the circuit board cable assembly from the probe body half 5 Proceed to the Compensation Box procedure to detach the cable from the compensation box See page 74 6 To reassemble the probe after replacing the cable do steps 1 through 5 of this procedure in reverse See following Caution statem...

Page 92: ...switch contacts requires precision Compensation Box 1 Insert the separator tool into the four holes to disengage the front and back compensation box sections from each other 2 Grasp the tool and front section together with one hand Hold the back section with the other hand and gently pull the two sections apart 3 Pull the cable grommet away from the back section of the compensation box 74 TCP0030 ...

Page 93: ...nel replace it and reassemble the compensation box 7 If you are replacing the cable or compensation box disconnect the cable connector 8 Install the new cable or compensation box by performing this procedure in reverse If you are replacing the cable refer also to the Cable Circuit Board Assembly procedure to complete the cable replacement TCP0030 Current Probe Instruction Manual 75 ...

Page 94: ...If the plastic slide assembly requires lubrication If so apply silicone based grease sparingly to the parts 2 Reassemble the probe body by following steps 1 through 8 of the probe head disassembly procedure in reverse See page 69 Probe Head Disassembly NOTE Exercise care when fitting the slide back into the probe body aligning the switch contacts requires precision If the slider does not work smoo...

Page 95: ...ice or representative Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements Therefore when ordering parts it is important to include the following information in your order Part number Instrument type or model number Instrument serial number Instrument modification number if app...

Page 96: ...r 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 Qty This indicates the quantity of parts used 6 Name Description An item name is separated from the description by a colon Because of space limitations an item name may sometimes ap...

Page 97: ...Maintenance Figure 4 Replaceable Parts TCP0030 Current Probe Instruction Manual 79 ...

Page 98: ...00 1 HOLDER SPR RTNR DELRIN TK2565 352 0106 00 5 213 0087 00 2 SCREW TPG TC 2 32 X 0 5 TYPE BT PANHEAD STEEL CADMIUM PLATED POZIDRIVE 3M099 ORDER BY DESCRIP TION 6 335 1357 00 1 MARKER ID PROBE ID 0KB05 335 1357 00 7 204 0714 06 1 BODY HALF LOWER BODY HALF W CONTACTS 80009 204 0714 06 8 120 2065 00 1 XFMR SUBASSY UPPER LOWER TRANSFORMER 80009 120 2065 00 9 214 0854 00 1 CONTACT ELEC UPPER SHELF CU...

Page 99: ... MEMBRANE SWITCH CIRCUIT BOARD ASSY 80009 260 2810 00 14 206 0564 00 1 COMPENSATION BOX ASSY 00009 206 0564 00 Table 10 Part Manufacturers Mfr Code Manufacturer Address City State Zip Code 05469 BEARINGS INC 3634 EUCLID PO BOX 6925 CLEVELAND OH 44101 0KB05 NORTH STAR NAMEPLATE INC 5750 NE MOORE COURT HILLSBORO OR 97124 6474 18359 PYLON CO INC 51 NEWCOMB ST ATTLEBORO MA 02703 1403 3M099 PORTLAND SC...

Page 100: ...1 91260 CONNOR FORMED METAL PRODUCTS 1729 JUNCTION AVENUE SAN JOSE CA 95112 TK1947 NORTHWEST ETCH TECHNOLOGY 2601 S HOOD ST PO BOX 110610 TACOMA WA 98411 0610 TK2548 XEROX CORPORATION DIV OF XEROX CORPORATION 7431 EVERGREEN PARKWAY HILLSBORO OR 97124 TK2565 VISION PLASTICS INC 26000 SW PARKWAY CENTER DRIVE WILSONVILLE OR 97070 82 TCP0030 Current Probe Instruction Manual ...

Page 101: ... Adjustment 64 DC LEVEL control 34 Degaussing 3 while connected to a conductor 26 Differential current 27 Documentation x E Equipment required performance verification 51 Equipment setup 53 ESD damage 2 Extending the current range of the probes 29 F Features 1 Frequency derating 35 G Gain accuracy check 54 I Increasing bucking current 30 Increasing probe sensitivity 32 Indicators 5 J Jaw damage 10...

Page 102: ...e controls and indicators 5 Probes coupling 34 extending the current range 29 increasing the current limit 29 maximum current limits 35 saturation 35 R Record test 62 Related documentation x Replaceable parts 77 Replacing cable circuit board assy 72 compensation box 74 transformer 72 Rise time check 59 S Safety Summary v Service options 25 Specifications 39 nominal 47 typical 41 warranted 40 T Tek...

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