Tektronix TCP202A Combined User/Service
x
TCP202A
50 MHz, 15 A AC/DC Current Probe
ZZZ
Instruction Manual
*P071300300*
071-3003-00
xx
TCP202A
50 MHz, 15 A AC/DC Current Probe
ZZZ
Instruction Manual
Revision A
www.tektronix.com
071-3003-00
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries 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.
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O . B o x 5 0 0
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 new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make
suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service
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 within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties,
taxes, and any other charges for products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix
shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix
representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to
repair any damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been modified or integrated with
other products when the effect of such modification or integration increases the time or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX 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. TEKTRONIX' RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY
PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE 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
Generalsafety summary .................................................................................................................... v
Service safety summary................................................................................................................... viii
Compliance Information.................................................................................................................... ix
Certifications and Compliances ...................................................................................................... ix
Environmental Considerations....................................................................................................... xii
Preface..................................................................................................................................... xiii
Documentation....................................................................................................................... xiii
Conventions Used in this Manual ................................................................................................... xiii
Returning the Probe for Servicing ...................................................................................................xiv
Key Features ............................................................................................................................... 1
Connectingthe Probe ...................................................................................................................... 2
........................................................................................................................................ 2
Degaussingthe Probe ................................................................................................................ 5
Probe Controls and Features .............................................................................................................. 6
Compensation Box Controls . ........................................................................................................ 6
Probe Head Controls and Features .................................................................................................. 8
Table of Contents
TCP202A Current Probe Instruction Manual i
Table of Contents
FunctionalCheck .......................................................................................................................... 10
Basic Operation............................................................................................................................ 11
Application Examples...................................................................................................................... 13
Accessories and Options.................................................................................................................. 19
Probing Principles ......................................................................................................................... 27
Specifications.............................................................................................................................. 39
Inductance Measurements .......................................................................................................... 14
Measuring Inductor TurnsCount .................................................................................................... 17
Optional Accessories . ............................................................................................................... 22
Options............................................................................................................................... 26
Degaussing a Probewith an Unpowered Conductor in the Jaws .................................................................. 27
Measuring Differential Current....................................................................................................... 28
Extending Current Range. ........................................................................................................... 30
Increasing Sensitivity ................................................................................................................ 33
Common Mode Noise/Magnetic Field Errors........................................................................................ 34
Maximum Current Limits............................................................................................................. 35
WarrantedCharacteristics ........................................................................................................... 39
Typical Characteristics............................................................................................................... 40
Nominal Characteristics ............................................................................................................. 46
Performance Verification .................................................................................................................. 47
Equipment Required ................................................................................................................. 48
Making the DC CurrentLoop ........................................................................................................ 49
ii TCP202A Current Probe Instruction Manual
Table of Contents
Set up the Equipment ...............................................................................................................50
DC Gain Accuracy ................................................................................................................... 51
Rise Time and Bandwidth ........................................................................................................... 54
Test Record .......................................................................................................................... 56
Adjustments................................................................................................................................ 57
Equipment Required & Setup........................................................................................................ 57
Adjustment Procedures.............................................................................................................. 58
Maintenance . . ............................................................................................................................. 61
Troubleshooting...................................................................................................................... 61
Cleaning.............................................................................................................................. 62
Index
TCP202A Current Probe Instruction Manual iii
Table of Contents
iv TCP202A Current Probe Instruction Manual
General safety summary
Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.
To avoid potential hazards, use this product only as specified.
Only qualified personnel should perform service procedures.
To avoid fire or personal injury
General safety summary
Connect and disconnect properly.
source.
Connect and disconnect properly.
Connect and disconnect properly.
circuit under test. Connect 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.
Ground the product.
electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output
terminals of the product, ensure that the product is properly grounded.
This product is indirectly grounded through the grounding conductor of the mainframe power cord. To avoid
Observe all terminal ratings.
manual for further ratings information before making connections to the product.
Do not connect a current probe to any wire that carries voltages above the current probe voltage rating.
Do not operate without covers.
TCP202A Current Probe Instruction Manual v
Do not connect or disconnect probes or test leads while they are connected to a voltage
De-energize the circuit under test before connecting or disconnecting the current probe.
Connect the probe output to the measurement instrument before connecting the probe to the
To avoid fire or shock hazard, observe all ratings and markings on the product. Consult the product
Do not operate this product with covers or panels removed.
General safety summary
Do not operate with suspected failures.
service personnel.
Avoid exposed circuitry.
Do not touch exposed connections and components when power is present.
If you suspect that there is damage to this product, have it inspected by qualified
Do not operate in wet/damp conditions.
Do not operate in an explosive atmosphere.
Keep product surfaces clean and dry.
Terms in this manual
These terms may appear in this manual:
WARNING.
CAUTION.
Warning statements identify conditions or practices that could result in injury or loss of life.
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:
vi TCP202A Current Probe Instruction Manual
DANGER indicates an injury hazard immediately accessible as you read the marking.
WARNING indicates an injury hazard not immediately accessible as you read the marking.
CAUTION indicates a hazard to property including the product.
The following symbol(s) may appear on the product:
General safety summary
TCP202A Current Probe Instruction Manual vii
Service safety summary
Servicesafetysummary
Only qualified personnel should perform service procedures. Read this
before performing any service procedures.
Do not service alone.
first aid and resuscitation is present.
Disconnect power.
power.
Use care when servicing with power on.
battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components.
To avoid electric shock, do not touch exposed connections.
Do not perform internal service or adjustments of this product unless another person capable of rendering
To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains
Dangerous voltages or currents may exist in this product. Disconnect power, remove
Service safety summary
General safety summary
and the
viii TCP202A Current Probe Instruction Manual
Compliance Information
This section lists the safety and environmental standards with which the instrument complies.
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 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 for electrical measurement and test equipment.
U.S. Nationally Recognized Testing Laboratory Listing
UL 6010B-2-032:2003. Particular requirements for handheld current clamps for electrical measurement and test equipment.
UL 61010-1 (2ndEdition)- Safety requirements for Electrical Equipment for measurement, Control, and Laboratory use - Part
1: General Requirements
Compliance Information
TCP202A Current Probe Instruction Manual ix
Compliance Information
Canadian Certification
CAN/CSA C22.2 No. 61010-1-04. Particular requirements for electrical equipment for measurement, control, and laboratory
use. Part 1.
CAN/CSA C22.2 No. 61010-2-032:04. 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 handheld current clamps for electrical measurement and test equipment.
Equipment Type
Measurement
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 only in the environment for which they
are rated.
x TCP202A Current Probe Instruction Manual
Compliance Information
Polution Degree 1. No pollution or only dry, nonconductive pollution occurs. Products in this category are generally
encapsulated, hermetically sealed, or located in clean rooms.
Polution 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
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 temperature nor humidity is controlled. The area is protected from direct sunshine,
rain, or direct wind.
Polution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor
locations.
Pollution Degree
Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.
TCP202A Current Probe Instruction Manual xi
Compliance Information
Environmental 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.
contain substances that could be harmful to the environment or human health if improperly handled 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 that will ensure that most of the materials are reused or recycled appropriately.
This symbol 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 information about recycling options, check the Support/Service section of the Tektronix Web site
(www.tektronix.com).
Production of this equipment required the extraction and use of natural resources. The equipment may
Restriction of Hazardous Substances
This product is classified as Monitoring and Control equipment, and is outside the scope of the 2002/95/EC RoHS Directive.
xii TCP202A Current Probe Instruction Manual
Preface
This manual describes the installation and operation of the TCP202A current probe. Basic probe operations and concepts are
presented in this manual. You can also access the Tektronix Web site for this document and other related information.
Documentation
Preface
To read about Use these documents
TCP202A Probe: First Time Operation, Functional Check,
Operating Basics, Specifications, Performance Verification
In-depth oscilloscope operation, user interface help, GPIB
commands
*
To access the documentation that is installed on your instrument, click
Read this Instruction Manual.
Access the online help from the Help menu on the host
instrument.
in the taskbar and select
Start
*
Programs > TekApplications
.
Conventions Used in this Manual
The following icon is used throughout this manual to indicate a step sequence.
TCP202A Current Probe Instruction Manual xiii
Preface
Returning the Probe for Servicing
If your probe requires servicing, you must return the probe to Tektronix. If the original packaging is unfit for use or not available, use
the following packaging guidelines:
Preparation for Shipment
Use a corrugated cardboard shipping
1.
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.
Put the probe into an antistatic bag or wrap
2.
it to protect it from dampness.
Place the probe into the box and stabilize it
3.
with light packing material.
Seal the carton with shipping tape.
4.
Refer to
5.
beginning of this manual for the shipping
address.
xiv TCP202A Current Probe Instruction Manual
Contacting Tektronix
at the
Key Features
The TCP202A current probe can make accurate measurements from DC to 50 MHz. The probe combines proven Hall-effect
technology with the Tektronix TekProbe oscilloscope interface. Key features include:
>50 MHz bandwidth, <7.0 ns rise time
AC/DC Measurement capability
3% DC Accuracy (typical)
One-button degauss/autozeroing
Direct scaling and unit readout on host
instruments
Key Features
TCP202A Current Probe Instruction Manual 1
Connecting the Probe
Connecting the Probe
The TCP202A current probe can be used with oscilloscopes that feature the Tektronix TekProbe and TekVPI interfaces.
Connecting to Oscilloscopes with
the TekProbe Interface
The TCP202A current probe mates directly
to oscilloscopes that feature the T e ktronix
TekProbe Interface.
Align the tab on the probe connector with
1.
the slot on the oscilloscope input connector
and push in the connector.
Turn the probe connector clockwise to
2.
secure the probe to the oscilloscope.
2 TCP202A Current Probe Instruction Manual
Connecting to Oscilloscopes with
the TekVPI Interface
You can also use the probe with oscilloscopes
that use the Tektronix TekVPI interface, using
the optional TPA-BNC Adapter shown.
The adapter allows TekVPI-interface
oscilloscopes to recognize TekProbe-interface
probes and to supply the necessary power,
serial communication, and offset control to the
probe.
Connect the TPA-BNC adapter to the
1.
oscilloscope. The adapter snaps in when
fully engaged.
Connect the probe to the input of the
2.
adapter.
Turn the probe connector clockwise to
3.
secure it.
Connecting the Probe
TCP202A Current Probe Instruction Manual 3
Connecting the Probe
Disconnecting the Probe
To disconnect the probe:
Turn the probe connector counterclockwise.
1.
Pull the probe away from the adapter (or
2.
instrument if directly connected).
To disconnect the adapter:
Press down the latch button.
3.
Pull the adapter away from the instrument.
4.
4 TCP202A Current Probe Instruction Manual
Degaussing the Probe
To degauss the probe, firstverifythatthe
1.
probe jaw is fully closed.
Connecting the Probe
Press the
2.
of the probe.
DEGAUSS
button on the side
Quick Tip
To maintain measurement accuracy, degauss
your probe in each of these 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 you subject the probe to a
strong external magnetic field
TCP202A Current Probe Instruction Manual 5
Probe Controls and Features
Probe Controls and Features
The TCP202A probe has controls in both the compensation box and at the probe head.
Compensation Box Controls
Degauss Button
To degauss the probe, do the following:
Disconnect the probe from the current
1.
source.
Close and lock the slider.
2.
Press the
3.
degauss routine.
6 TCP202A Current Probe Instruction Manual
DEGAUSS
button to initiate the
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