Tektronix TCPA300 SERIES User manual

xx

TCPA300/400 Ampliﬁers &

TCP300A/400 Series AC/DC Current Probes

ZZZ

User Manual

*P077118301*

077-1183-01

TCPA300/400 Ampliﬁers &

TCP300A/400 Series AC/DC Current Probes

ZZZ

User Manual

xx

This document applies for ﬁrmware version 1.0 and above.

www.tektronix.com

077-1183-01

or suppliers, and are protected by national copyright laws and international treaty provisions.

Tektronix products are covered by U.S. and foreign patents, issued 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.

Additional trademark statements can be added here.

Contacting Tektronix

Tektronix, Inc.

14150 SW Karl Braun Drive

P.O. B o x 500

Beaverton, OR 97077

USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200.

Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Warranty

Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1)

year from the date of shipment. If any such 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. Parts, modules and replacement products used by Tektronix for warranty

work may be n

ew or reconditioned to like new performance. All replaced p arts, modules and products become

the property of Tektronix.

In order to o

btain service under this warranty, Customer must notify Tektronix of the defect before the expiration of

the warranty period and make suitable a rrangements for the performance of service. Customer shall be responsible

for packaging and shipping the defective product to the service center 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 w ithin

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

result

ing 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 WITH RESPECT TO THE PRODUCT 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.

TEK

TRONIX' 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 LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,

OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS

ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W2 – 15AUG04]

Table of Contents

General safety summary ........................................................................................... v

Compliance Information ......................................................................................... vii

EMC Compliance (Applies to TCPA300 & TCPA400 Ampliﬁers Only) ............................. vii

Safety Compliance Information............................................................................ viii

Environmental Considerations ............................................................................... x

Preface .............................................................................................................. xi

Manual Conventions.......................................................................................... xi

Getting Started ... .................. ...................... .................. ........................................ . 1

System Conﬁguration ......................................................................................... 1

Options.......................................................................................................... 3

Standard Accessories.......................................................................................... 4

Optional Accessories .......................................................................................... 4

Probe Cover .................................................................................................... 5

Ground Lead ................................................................................................... 6

Travel Case ..................................................................................................... 7

Connecting the Ampliﬁer to an Oscilloscope.......................... ...................... ............... 8

Power on the Ampliﬁer ....................................................................................... 8

Co

nnecting a Current Probe to the Ampliﬁer............................................................... 9

Operating the Current Probe Slide .......................................................................... 10

Degaussing and Autobalancing the Current Probe........................................................ 12

DC Measurements ............................................................................................ 13

AC Measurements ............................................................................................ 15

Control Summary.................................................................................................. 17

TCPA300 and TCPA400 Controls .......................................................................... 18

Reference Notes ................................................................................................... 23

Degaussing a Probe with an Unpowered Conductor in the Jaws ........................................ 23

Measuring Differential Current ............................................................................. 24

AC and DC Coupling......................................................................................... 26

Maximum Current Limits.................................................................................... 27

Measuring Noncontinuous Current with the TCP404XL Probe......................................... 30

Extending Current Range .................................................................................... 32

Increasing Sensitivity..... .............. ................................ .............. ........................ 34

Application Notes ................................................................................................. 35

Automobile Charging Systems.............................................................................. 35

Inductance Measurements ................................................................................... 37

Continuity Test of Multiple-Conductor Cable . .............. .............................................. 39

Measuring Inductor Turns Count ........................................................................... 40

Power Measurement and Analysis Software............................................................... 41

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual i

Table of Contents

Troubleshooti

ng and Error Codes................................................................................ 42

Displaying Error Codes with the Probe Degauss Autobalance Button ................................. 45

Correcting the Cause of an Error Code..................................................................... 47

Shutdown Error ............................................................................................... 47

Speciﬁcations ...................................................................................................... 49

Warranted Speciﬁcations..................................................................................... 49

Nominal and

Typical Characteristics ....................................................................... 50

Mechanical Characteristics .................................................................................. 51

Environmental Characteristics .............................................................................. 53

Performance Graphs.......................................................................................... 54

TCP404XL Maximum Measurement Times............................................................... 58

Glossary

Index

ii TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

List of Figures

Figure 1: Typical TCPA300/400 current measurement system................................................ 1

Figure 2: Using the probe cover .................................................................................. 5

Figure 3: Connecting the ground lead ........................................................................... 6

Figure 4: Equipment locations in the travel case ............................................................... 7

Figure 5: Connecting and disconnecting a current probe to the ampliﬁer.................................... 9

Figure 6: TCP312A and TCP305A slide operation............................................................ 10

Figure 7: Unlock and open the TCP303 and TCP404XL ..................................................... 11

Figure 8: Close and lock the TCP303 and TCP404XL........................................................ 11

Figure 9: Arrow on current probe indicates conventional current ﬂow ..................................... 14

Figure 10: The TCPA300 front panel ........................................................................... 17

Figure 11: Measuring two conductors........................................................................... 24

Figure 12: Measuring differential current and nulls ........................................................... 25

Figure 13: Effect of AC or DC coupling on low-frequency signals ....... .................................. 26

Figure 14: Applying the amp-second product rule ............................................................ 28

Figure 15: Duty cycle calculation ............................................................................... 30

Figure 16: Adding a second conductor.......................................................................... 33

Figure 17: Adding multiple turns................................................................................ 33

Figure 18: Increasing probe sensitivity ................................................... .............. ........ 34

Figure 19: Setup for measuring charging current.............................................................. 36

Figure 20: Charge current waveforms........................................................................... 36

Figure 21: Measuring inductance with a low-impedance source............................................. 37

Figure 22: Linear current vs. time ramp ........................................................................ 38

Figure 23: High-impedance source current ramp .............................................................. 39

Figure 24: Measuring the number of turns in a coil ........................................................... 40

Figure 25: Turns measurement using reference coil........................................................... 40

Figure 26: Error code d

isplay .................................................................................... 45

Figure 27: Interpreting the error code display.................................................................. 46

Figure 28: Probe jaw dimensions (nominal).................................................................... 52

Figure 29: Frequency derating-TCP312A ...................................................................... 54

Figure 30: Frequency derating-TCP305A ...................................................................... 54

Figure 31: Frequency derating-TCP303 ........................................................................ 54

Figure 32: Frequency derating-TCP404XL .................................................................... 55

Figure 33: Insertion impedance versus frequency ............................................................. 56

Figure 34: Speciﬁed operating area of the probes ............................................................. 57

Figure 35: Measuring 750A noncontinuous at 50 °C ambient temperature................................. 58

Figure 36: Measuring 600A noncontinuous at 50 °C ambient temperature................................. 58

Figure 37: Measuring 750A noncontinuous at 23 °C ambient temperature................................. 59

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual iii

Table of Contents

List of Tables

Table 1: Safety compliance information ....................................................................... viii

Table 2: Amp

liﬁer options......................................................................................... 3

Table 3: Service options ........................................................................................... 3

Table 4: Unpowered circuit degauss limits ..................................................................... 23

Table 5: Automobile charging systems test setup.............................................................. 35

Table 6: Troubleshooting ......................................................................................... 42

Table 7: Ampliﬁer error codes ................................................................................... 46

Table 8: W

arranted TCPA300 and TCPA400 speciﬁcations.................................................. 49

Table 9: Nominal and typical ampliﬁer characteristics........................................................ 50

Table 10: TCPA300 and TCPA400 mechanical characteristics .............................................. 51

Table 11: Probe mechanical characteristics..................................................................... 52

Table 12: Shipping weights and dimensions ................................................................... 52

Table 13: Environmental characteristics........................................................................ 53

iv TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

General safety summary

General safet

y summary

Review the fo

llowing safety precautions to avoid injury and prevent damage to

this product or any products connected to it.

To avoid pot

ential hazards, u se this product only as speciﬁed.

Only qualiﬁed personnel should perform service procedures.

While using this product, you may need to a ccess other parts of a larger system.

Read the s afety sections of the other component manuals for warnings and

cautions r

elated to operating the system.

To avoid ﬁre or personal

injury

Use proper power cord. Use only the power cord speciﬁed for this product and

certiﬁed for the country of use.

Connect and disconnect properly. Do not connect or disconnect probes or test

leads while they are connected to a voltage source.

Connect and disconnect properly. Connect the probe output to the measurement

instrument before connecting the probe to the circuit under test. Connect the

probe r eference 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.

Ground the product. This product is grounded through the grounding conductor

of the power cord. To avoid electric shock, the grounding conductor must be

con

nected to earth ground. Before making connections to the input or output

terminals of the product, ensure that the product is properly grounded.

Obs

erve all terminal ratings. To avoid ﬁre or shock hazard, observe all ratings

and markings on the product. Consult the product manual for further ratings

information before making connections to the product.

Connect the probe reference lead to earth ground only.

D

o not connect a current probe to any wire that carries voltages above the current

probe voltage rating.

Do not operate without covers. Do not operate this product with covers or panels

removed.

Do not operate with suspected failures. If you suspect that there is damage to this

product, have it inspected by qualiﬁed service personnel.

Avoid exposed circuitry. Do not touch exposed connections and components when

power is present.

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual v

General safety summary

Do not operate i

n wet/damp conditions.

Do not operate in an explosive atmosphere.

Keep product surfaces clean and dry.

Provide prop

er ventilation. Refer to the manual's installation instructions for details

on installing the product so it has proper ventilation.

Termsinthismanual

These terms may appear in this manual:

WARNING.

Warning statements 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.

Symbols and terms on the

product

These t

erms may appear on the product:

DANGER indicates an injury hazard immediately ac cessible as you read

the ma

rking.

WARN ING indicates an injury hazard not immediately accessible as you

read

the marking.

CAUTION indicates a hazard to property including the product.

The following symbol(s) may appear on the product:

vi TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

Compliance Information

This section lists the EMC (electromagnetic compliance) and environmental

standards with which the instrument complies.

EMC Compliance (Applies to TCPA300 & TCPA400 Ampliﬁers O nly)

EC Decla ration of

Conformity

–EMC

Meets intent of Directive 2004/108/EC for Electromagnetic Compatibility.

Complianc

e was demonstrated to the following speciﬁcations as listed in the

Ofﬁcial Journal of the European Communities:

EN 61326-1:2006, EN 61326-2-1:2006. EMC requirements for electrical equipment

for measurement, control, and laboratory use.

123

CISPR 11:2003. Radiated and conducted emissions, Group 1, Class A

IEC 61000-4-2:2001. Electrostatic discharge immunity

IEC 61000-4-3:2002. RF electromagnetic ﬁeld immunity

IEC 610

00-4-4:2004. Electrical fast transient/burst immunity

IEC 61000-4-5:2001. Power line surge immunity

IEC 61000-4-6:2003. Conducted RF immunity

IEC 61000-4-11:2004. Voltage dips and interruptions immunity

4

EN 61000-3-2:2006. AC power line harmonic emissions

EN 61000-3-3:1995. Voltage changes, ﬂuctuations, and ﬂicker

European Contact.

Tektronix UK, Ltd.

Wes tern Peninsula

W

estern Road

Bracknell, RG12 1RF

United Kingdom

1

This product is intended for use in nonresidential areas only. Use in residential areas may cause electromagnetic

interference.

2

Emissions which exceed the levels required by this standard may occur when t his equipment is connected to a

test object.

3

To ensure compliance with the EMC standards listed here, high quality shielded interface cables should be used.

4

Performance Criterion C applied at the 70%/25 cycle Voltage-Dip and the 0%/250 cycle Voltage-Interruption test

levels (IEC 61000-4-11).

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual vii

Compliance Information

Australia / New Zealand

Declaration of

Conformity – EMC

Complies with t

he EMC provision of the Radiocommunications Act per the

following standard.

CISPR 11 :2003

. Radiated and Conducted Emissions, Group 1, Class A, in

accordance with EN 61326-1:2006 and EN 61326-2-1:2006.

FCC–EMC

Emissions are within the limits of FCC 47 CFR, Part 15, Subpart B for Class A

equipment.

Safety Compliance Information

Table 1: S

afety compliance information

Category Standards or description

EC Declaration o f Conformity – Low

Voltage

1

Compliance was demonstrated to the following speciﬁcation as listed in the Ofﬁcial Journal

of the European Communities:

Low Volt

age Directive 73/23/EEC, amended by 93/68/EEC.

EN 61010-1/A2:1995. Safety requirements for electrical equipment for measurement

control and laboratory use.

EN 6101

0-2-032:1995. Particular requirements for hand- held current clamps for electrical

measurement and test equipment.

U.S. Nationally Recognized Testing

Laboratory Listing

UL3111-1. Standard for electrical measuring and test equipment.

UL3111-2-032. Hand-held probe assemblies for electrical measurement and test.

UL610

10-1. Safety requirements for electrical equipment for measurement, control, and

laboratory use.

UL61010B-2-032: Particular requirements for hand-held current clamps for electrical

measu

rement and test.

Cana

dian Certiﬁcation

CAN/

CSA C22.2 No. 61010.1. Safety requirements for electrical equipment for

measurement, control, and laboratory use.

CAN/CSA C22.2 No. 61010.2.032:1996. Particular requirements for hand-held probe

ass

emblies for electrical measurement and test equipment.

Add

itional Compliance

IEC

61010-2-032:1995. Particular requirements for hand-held current clamps for electrical

measurement and test.

IEC 61010-1:2001. Safety requirements for electrical equipment for measurement control

an

d laboratory use.

In

stallation (Overvoltage) Category

Descriptions

Te

rminals on this product may have different installation (overvoltage) category

designations. The installation categories are:

CAT III. Distribution-level m ains (usually permanently connected). Equipment at this level is

t

ypically in a ﬁxed industrial location.

CAT II. Local-level mains (wall sockets). Equipment at this level includes appliances,

portable tools, and similar products. Equipment is usually cord-connected.

C

AT I. Secondary (signal level) or battery operated circuits of electronic equipment.

viii TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

Compliance Information

Table 1: Safety compliance information (cont.)

Category Standards or description

Pollution Degree Descriptions

A measure of the contaminates that could occur in the environment around and within a

product. Typically the internal environment inside a product is considered to be the same

as the external. Products should be used onl y in the environment for w hich they are rated.

Pollution Degree 1. No pollution or only dry, nonconductive pollution occurs. Products in

this category are generally encapsulated, hermetically sealed, or located in clean rooms.

Pollution Degree 2. Normally only dry, 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 w hen the

product is out of service.

Pollution Degree 3. Conductive pollution, or dry, nonconductive pollution that becomes

conductive due to condensation. These are sheltered locations where neither temperature

nor humidity is controlled. The area is protected from direct sunshine, rain, or d irect w ind.

Pollution Degree 4. Pollution that generates persistent conductivity through conductive

dust, rain, or snow. Typical outdoor locations.

Equipment Type Test and measuring

Safety Class Class 1 (as deﬁned in IEC 61010-1, Annex H) – grounded product

Overvoltage Category Overvoltage Category II (as deﬁned in IEC 61010-1, Annex J)

Pollution Degree

Pollution Degree 2 (as deﬁned in IEC 61010-1). Note: Rated for indoor use only.

1

The TCP305A and TCP312A Current Probes are exempt from the Low Voltage Directive and are not third-party listed. However, they have been evaluated to

applicable safety standards.

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual ix

Compliance Information

Environmenta

l Considerations

This section provides information about the environmental impact of the product.

Product End-of-Life

Handling

Observe the following guidelines when recycling an instrument or component:

Equipment Recycling. Production of this equipment required the extraction and

use of natural resources. The equipment may contain substances that could be

harmful to

the e nvironment or human health if improperly 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.

This sym

bol indicates that this product complies with the applicable European

Union requirements according to Directives 2002/96/EC and 2006/66/EC

on waste electrical and electronic equipment (WEEE) and batteries. For

informa

tion about recycling options, check the Support/Service section of the

Tektronix Web site (ww w.tektronix.com).

Restriction of Hazardous

Substances

This product is classiﬁed as an industrial monitoring and control instrument

accessory, and is not required to comply with the subs tance restrictions of the

recast RoHS Directive 2011/65/EU until July 22, 2017.

x TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

Preface

This User Manual supports the operation and basic maintenance of the TCPA300

and TCPA400 Current Probe Ampliﬁers, and the TCP300/400 Series AC/DC

current prob

es that mate with the ampliﬁers. The current probes covered in this

manual are listed below:

TCP312A (30

A, 100 MHz, c ompatible with TCPA300)

TCP305A (50 A, 50 MHz, compatible with TCPA300)

TCP303 (150 A, 15 MHz, compatible with TCPA300)

TCP404XL (500 A*, 2 MHz, compatible with TCPA400) *750 A DC derated

with duty cycle

If you are not familiar with these products, please refer to the Getting Started and

Operating Basics chapters of this manual for basic operating information.

If you are an advanc ed user, the Reference section contains information on

advanced applications as well as user diagnostic and troubleshooting information.

The Glossary and Index are provided as quick reference locators for important

information.

Service Manual

The Performance Veriﬁcation and Adjustment procedures are located in the

Service Manual and support the qualiﬁcation and calibration of the probes when

used with either ampliﬁer.

The Maintenance section is also located in the Service Manual and supports the

routine maintenance and repair of mechanical parts associated with the ampliﬁers.

Ma

nual Conventions

The term "ampliﬁer" is used to refer to either the TCPA300 or TCPA400 w hen

referring to common attributes. If a subject is unique to either ampliﬁer, the

a

mpliﬁer will be referred to directly by model.

The terms "current probe" and "probe" are used to refer to any of the TCP300A/400

Series current probes when referring to common attributes. If a subject is unique

to a particular probe, the probe will be referred to directly by model.

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual xi

Preface

xii TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

Getting Started

The TCPA300 and TCPA400 current probe ampliﬁers let you use one probe to

simultaneously measure AC and DC current. The ampliﬁers convert the sensed

current into

a p roportional voltage signal that you can measure directly with an

oscilloscope.

The TCPA300

and TCPA400 current probe ampliﬁers provide better linearity

than other current measurement systems because of a current feedback process

used with the probe. DC measurement capability and high bandwidth allow the

ampliﬁers to accurately represent square waves and fast-rise signals.

The TCPA300 and TCPA400 ampliﬁers and associated probes provide these

features:

Simultaneous DC and AC current measurements up to 750 A peak

High sensitivity

One-bu

tton autobalancing and probe degaussing

No adjustments needed to match a current probe to an individual a mpliﬁer

AC or DC coupling of signal

Direct scaling and unit readout on compatible TEKPROBE level II

oscilloscopes

Syst

em Conﬁguration

A complete current measurement system consists of a current probe ampliﬁer, a

compatible current probe, and an appropriate oscilloscope. (See Figure 1.)

Figure 1: Typical TCPA300/400 current measurement system

1. 50 Ω oscilloscope input — use the TEKPROBE Interface Cable or use a

50 Ω cable. (Add a 50 Ω termination here if the oscilloscope only has a

high-impedance input).

TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual 1

Getting Started

TCPA300 and TCPA400

Current Probe Ampliﬁers

The ampliﬁer am

pliﬁes the current sensed by the probe and c onverts the current

to a proportional voltage that is displayed on an oscilloscope or other similar

measuring device.

Current P robes

The followin

g Tektronix current probes are compatible with the

TCPA300 Ampliﬁer:

TCP312A (30

A, 100 MHz)

TCP305A (50 A, 50 MHz)

TCP303 (150 A, 15 MHz)

The following Te ktronix current probes are compatible with the

TCPA400 Ampliﬁer:

TCP404XL (750 A

1

,2MHz)

1

500 A continuous, 750 A DC derated with duty cycle

Oscilloscope

An osci

lloscope displays the output from the current measuring system. A 50 Ω

cable is included to connect the ampliﬁer to the oscilloscope input channel. A

TEKPROBE-to-TEKPROBE interface cable is also included for connecting to

TEKPROBE level II o scilloscopes.

If the oscilloscope does not have an input that can be set to 50 Ω impedance, you

need a feedthrough 50 Ω termination. This termination is included as a standard

accessory with your TCPA300 and TCPA400 Current Probe Ampliﬁers.

2 TCPA300/400 Ampliﬁers and TCP300A/400 Series Current Probes User Manual

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