x
THDP0100/0200 & TMDP0200
High Voltage Differential Probes
ZZZ
Instruction Manual
*P077054002*
077-0540-02
xx
THDP0100/0200 & TMDP0200
High Voltage Differential Probes
ZZZ
Instruction Manual
www.tek.com
077-0540-02
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are
protected by na
tional copyright laws and international treaty provisions.
Tektronix pro
previously published material. S peci fications and price change privileges reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
ducts are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all
Contacting Tektronix
Tektronix, Inc.
14150 SW Karl Braun Drive
P.O. Box 500
Beaverton, OR 97077
USA
For product information, sales, service, and technical support:
In North America, call 1-800-833-9200.
Worldwide, visit www.tek.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 a ttempts 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 E XCLU S IVE 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 PO SSIBILITY OF SUCH
DAMAGES.
[W2 – 15AUG04]
Table of Contents
Important Safety Information.......................................................................................................... iii
General Safety Summary........................................................................................................ iii
Service Safety Summary ........................................................................................................ v
Terms in this Manual .. .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . . . .. . .. .. . v
Symbols and Terms on the Product . . . . .. . .. . . . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. v
Compliance Information............................................................................................................... vi
Safety Compliance............................................................................................................... vi
Environmental Considerations................................................................................................. viii
Preface................................................................................................................................. ix
Probe Operating Information.......................................................................................................... 1
Connecting to the Instrument. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . 1
Connecting to the Circuit. . .. .. . .. .. . .. . . . .. . . . .. . . . .. . .. .. . .. .. . .. .. . .. .. . .. . . . .. . . . .. . .. .. . . . .. . .. .. . .. .. . .. . . . .. .. . .. . . . .. . . . .. 2
Probe Controls and Indicators................................................................................................... 3
Accessories ............................................................................................................................ 6
THDP0100 Probe Standard Accessories .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. . 6
THDP0200 & TMDP0200 Probe Standard Accessories... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . . . .. . .. . .. .. . .. . .. .. . .. . . . .. . . 10
THDP & TMDP Series Probes Optional Accessories . .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . .. . . . .. . .. .. . .. . .. .. . .. . 1
Options................................................................................................................................ 18
Functional Check
Operating Basics ..................................................................................................................... 22
Operating Characteristics and Probing Techniques .. . . . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . . . .. . .. . . . .. . .. . .. .. . .. . . . . 22
Specifications .........................................................................................................................26
Warranted Specifications ....................................................................................................... 26
Typical Characteristics ..........................................................................................................27
Mechanical Characteristics . .. .. . .. . .. .. . .. . . . .. . .. .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. .. . .. . .. .. . .. . . . .. . . . .. . .. .. . .. . . . .. . .. .. 28
Nominal Characteristics......................................................................................................... 29
Performance Graphs.. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. . . . .. . .. . . . .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. . . . .. . .. . . . .. . .. . . . .. . .. .. . .. . .. 29
Performance Verification ............................................................................................................. 33
Required Equipment ... .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. 33
Test Procedures .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . 35
Adjustments........................................................................................................................... 39
Equipment Required ... .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. . . . .. . .. .. . .. . . . .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . . 41
Adjustment Procedures .. . . . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. 42
Troubleshooting. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. .. . .. . ....... 53
Host Instrument Firmware ...................................................................................................... 53
Error Conditions .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. 53
Cleaning . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . .. .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . .. .. . .. .. . .. . .. .. . .. . . . .. . .. .. . .. . . . .. . . .. 54
Service........................................................................................................................... 54
Index
..................................................................................................................... 19
Table of Content
s
7
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual i
Table of Content
s
ii THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Important Safet
y Information
Important Saf
This manual contains information and warnings that must be followed by the user for safe operation and to keep the
product in a safe condition.
To safely perform service on this product, additional information is provided at the end of this section. (See page v, Service
Safety Summary.)
ety Information
General Safety Summary
Use the prod
or any products connected to it. Carefully read all instructions. Retain these instructions for future reference.
This product shall be used in accordance with local and national codes.
For correct and safe operation of the product, it is essential that you follow generally accepted safety procedures in addition
to the safety precautions specified in this manual.
The product is designed to be used by trained personnel only.
Only qualified personnel who are aware of the hazards involved should remove the cover for repair, maintenance, or
adjustme
Before us
This pro
uct only as specified. Review the following safety precautions to avoid injury and prevent damage to this product
nt.
e, always check the product with a known s ource to be sure it is operating correctly.
duct is not intended for detection of hazardous voltages.
Use pers
While us
component manuals for warnings and cautions related to operating the system.
When incorporating this equipment into a system, the safety of that system is the responsibility of the assembler of the system.
onal protective equipment to prevent shock and arc blast injury where hazardous live conductors are exposed.
ing this product, you may need to access other parts of a larger system. Read the safety sections of the other
To Avoid Fire or Personal Injury
Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected
to a voltage source.
Use only insulated voltage probes, test leads, and adapters supplied with the product, or indicated by Tektronix to be
suitable for the product.
Observe All Terminal R atings. To avoid fire or shock hazard, observe all ratings and markings on the product. Consult
roduct manual for further ratings information before making connections to the product. Do not exceed the Measurement
the p
Category (CAT) rating and voltage or current rating of the lowest rated individual component of a product, probe, or accessory.
Do not apply a potential to any terminal, including the common terminal, that exceeds the maximum rating of that terminal.
Do Not Operate Without Covers. Do not operate this product with covers or panels removed, or with the case
open. Hazardous voltage exposure is possible.
Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual iii
Important Safet
Do Not Operate with Suspected Failures. If you suspect that there is damage to this product, have it inspected by
qualified servi
y Information
ce personnel.
Disable the pr
the product, turn it off and disconnect the power cord. Clearly mark the product to prevent its further operation.
Before use, inspect voltage probes, test leads, and accessories for mechanical damage and replace when damaged. Do not
use probes or test leads if they are damaged, if there is exposed metal, or if a wear indicator shows.
Examine the exterior of the product before y ou use it. Look for cracks or missing pieces.
Use only specified replacement parts.
oduct if it is damaged. Do not use the product if it is damaged or operates incorrectly. If in doubt about safety of
Do Not Operate in Wet/damp Conditions. Be aware that condensation may occur if a unit is moved from a cold to a
warm environment.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Probes an
Before connecting probes or test leads, connect the power cord from the power connector to a properly grounded power
outlet.
Keep fingers behind the protective barrier, protective finger guard, or tactile indicator on the probes.
Remove all probes, test leads and accessories that are not in use.
Use only correct Measurement Category (CAT), voltage, temperature, altitude, and amperage rated probes, test leads,
and adapters for any measurement.
d Test Leads
Remove the input signals before you clean the product.
e of High Voltages.
Bewar
The following rating is important to know and understand:
The maximum measurement voltage for the probe tip.
The voltage rating depends on the probe and your application. Refer to the Specifications section of the manual for more
information.
ING. To prevent electrical shock, do not exceed the maximum measurement or maximum floating voltage for the
WAR N
oscilloscope input BNC connector, probe tip, or probe reference lead.
To prevent damage to the alligator clip insulation, do not use in high A/m magnetic fields at high frequencies, which can
cause induction heating of the jaws.
nnect and Disconnect Properly.
Co
probe to the circuit under test. Disconnect the probe input from the circuit under test before disconnecting the probe from
the measurement product.
Understand the voltage ratings for the probe you are using and do not exceed those ratings.
Connect the probe output to the measurement product before connecting the
Inspect the Probe and Accessories. Before each use, inspect probe and accessories for damage (cuts, tears, or
defects in the probe body, accessories, or cable jacket). Do not use if damaged.
iv THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Service Safety Summary
The Service safety summary section contains additional information required to safely perform service on the product. Only
qualified personnel should perform service procedures. Read this S ervice safety summary and the General safety summary
before performing any service procedures.
To Avoid Electric Shock. Do not touch exposed connections.
Do Not Service Alone. Do not perform internal service o r adjustments of this product unless another person capable of
rendering first aid and resuscitation is present.
Disconnect Power. To avoid electric shock, switch off the product power and disconnect the power cord from the mains
power before removing any covers or p
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 replacing
components.
Verify Safety After Repair. Always recheck ground continuity and mains dielectric strength after performing a repair.
Terms in this Manual
anels, or opening the case for servicing.
Important Safet
y Information
These terms may appear in this manual:
WARNING. Warning statements identify conditions or practices that could result in injury or l oss 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 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 including the product.
When this symbol is marked on the product, be sure to consult the manual to find out the nature of the
potential hazards and any actions which have to be taken to avoid them. (This symbol may also be used
refer the user to ratings in the manual.)
The following symbol(s) m ay appear on the product:
to
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual v
Compliance Info
rmation
Compliance In
This section lists the safety and environmental standards with which the instrument complies. This product is intended for
use by professionals and trained personnel only; it is not designed for use in households or by children.
Questions about the following compliance information may be directed to the following address:
Tektronix, Inc.
PO Box 500, MS 19-045
Beaverton, OR 97077, USA
www.tek.com
Safety Compliance
This section lists the safety standards with which the product complies and other safety compliance information.
EU Low Vol
Compliance was demonstrated to the following specification as listed in the Official Journal of the European Union:
Low Voltage Directive 2014/35/EU.
EN 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.
tage Directive
formation
U.S. Nationally Recognize d Resting Laboratory Listing
UL 6101
0-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.
Canadian Certification
CAN/CSA-C22.2 No. 61010-031. Particular requirements for handheld probe assemblies for electrical m easurement
and test equipment.
Additional Compliances
IEC 61010-031. Particular requirements for handheld probe assemblies for electrical measurement and test equipment.
ipment Type
Equ
Test and measuring equipment.
vi THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Compliance Info
rmation
Pollution Degree Descriptions
A measure of the contaminants that could occur in the environment around and within a product. Typically the internal
environment inside a product is c onsidered to be the same as the external. Products should be used only in the environment
for which 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 when 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 direct wind.
Pollution degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical
outdoor locations.
Pollution Degree Rating
Pollution degree 2 (as defined in IEC 61010-1). Rated for indoor, dry location use only.
IP rating
IP20 (as defined in IEC 60529).
Measurement and Overvoltage Category Descriptions
Measurement terminals on this product may be rated for measuring mains voltages from one or more of the following
ories (see specific ratings marked on the product and in the manual).
categ
ory II. Circuits directly connected to the building wiring at utilization points (socket outlets and similar points).
Categ
gory III. In the building wiring and distribution system.
Cate
gory IV. At the source of the electrical supply to the building.
Cate
NOTE. Only mains power supply circuits have an overvoltage category rating. Only measurement circuits have a
measurement category rating. Other circuits within the product do not have either rating.
Mains Overvoltage Category Rating
Overvoltage category II (as defined in IEC 61010-1).
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual vii
Compliance Info
rmation
Environmental Considerations
This section provides information about the environmental impact of the product.
Restriction of Hazardous Sub stances
Complies with RoHS2 Directive 2011/65/EU.
Product End
Observe the following guidelines when recycling an instrument or component:
-of-Life Handling
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 environment or human health if improperly handled at the
s end of life. To avoid release of such substances into the environment and to reduce the use of natural resources,
product’
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 2012/19/EU and 2006/66/EC on waste electrical and electronic equipment (WEEE) and batteries.
rmation about recycling options, check the Tektronix Web site (www.tek.com/productrecycling).
For info
viii THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Preface
This document provides operating information and specifications for the Tektronix THDP0100/0200 & TMDP0200 high voltage
differential probes. The probes share similar functions, properties, and operating procedures, and are discussed first, followed
by the specifications, which differ by probe model. Service procedures include performance verification and adjustments.
WARNING. Only use the accessories that are designed for your probe and that are rated at or above the voltages you
are measuring.
Name Bandwidth Peak voltage range Oscilloscope interface
THDP0100 100 MHz
THDP0200 200 MHz
TMDP0200 200 MHz
600 V/6000 V
150 V/1500 V
75 V/750 V
Preface
TekVP I
TekVP I
TekVP I
Figure i: THDP0100 probe with accessories
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual ix
Preface
Figure ii: THDP0200 probe with accessories
x THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Preface
Figure iii: TMDP0200 probe with accessories
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual xi
Probe Operating
Information
Probe Operati
This section of the manual describes how to make connections to the instrument and to your circuit, followed by descriptions
of the probe controls and indicators.
ng Information
Connecting to the Instrument
1. Connect the probe to the input of the oscilloscope.
All of the LEDs on the probe body briefly light, and then indicate the settings from the previous session.
The Status LED on the probe control box lights amber as the probe completes a self-test.
The Status LED goes off briefly and then lights green to indicate the probe is ready to use.
2. Adjust the vertical offset (or position) of the oscilloscope input.
3. Select the proper range setting.
For example, when using the THDP0200 probe, to achieve higher resolution and less noise when measuring signals
below 150 V
not be
WARNING. To avoid electrical shock, observe proper safety precautions when working with voltages above 60 VDC or
30 VAC
RMS
sure that the accessories are fully mated before connecting or disconnecting.
Make
oid electrical shock or fire, make sure the test leads are in good condition. The input leads and extender leads have a
To a v
jacket wear indicator which becomes visible if the wire jacket becomes excessively worn. If the wear indicator is visible, do
not use the probe. Contact Tektronix Service for repair or replacement.
To avoid electrical shock o r fire, keep the probe body and output cable of the probe away from the circuits being measured.
probe body and output cable are not intended to be in contact with the circuits being measured.
The
4. Use the probe accessories to connect the probe inputs to the circuit points to be measured. (See page 6, Accessories.)
, switch the RANGE to 150 V. If the OVERRANG E indicator lights or flashes, the output signal may
pk
accurate. Use the 1500 V range setting instead.
. These voltage levels pose a shock hazard. Use only the accessories specified with the probe that you are using.
1 THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
Connecting to the Circuit
Make the connections to your circuit using the integral input leads or the accessories that best fit your application. The
integral input leads extend 10 in (25 cm) from the probe body. Connect the leads directly to your circuit, or use the extender
leads and the accessories that are included with the probe. (See page 6, Accessories.)
Probe Operating
Information
NING. To avoid electrical shock or fire, always make the connections from the test leads to the probe accessory that
WAR
you intend to use before you make any connections to a volt age source. Always ensure that the connections between the
test leads and the probe accessories are secure before y ou connect them to a voltage source. Do not connect or disconnect
essories or extended test leads to a voltage source unless they are first connected to the probe.
acc
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual 2
Probe Operating
Information
Probe Controls and Indicators
The probes have several features that make probing and measurement a simpler task. Familiarize yourself with the controls
and indicators shown on the following pages. Some features di ffer from those illustrated, such as probe input voltage
limit and voltage range, depending on the probe model.
The probe release button, Status LED, and MENU buttons are located on the probe control box.
Probe Release Button
Press the release button to unlatch the probe
from the instrument, and then pull the probe
straight ou
WARNING. To avoid electrical shock,
disconnect the probe inputs from the circuit
before dis
instrument.
Status LED
When the probe is connected to the
instrument, the Status LED lights amber as
the probe completes a self-test. Then, the
Status LED goes off briefly and then lights
green to indicate the probe is ready to use.
The Status LED lights amber or red if the
power-on test failed, or any time an error
occurs. If the Status LED light does not light
green after the self-test, first disconnect the
probe from the circuit under test, and then
disconnect the probe from the oscilloscope.
Reconnect the probe to the oscilloscope and
check that the Status LED lights amber, and
then green. If the Status LED continues
to light amber or red, there may be other
remedies. (See page 53, Error Conditions .)
t.
connecting the probe from the
Menu Button
Press the MENU button to display on-screen
probe controls on the oscilloscope. Many
be functions are available, such as
pro
AutoZero and range selection.
3 THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
The remaining controls and features of the probe are located on the probe head.
Probe Inputs
The maximum voltage that the probe inputs
can accept depend on the probe model and
the measurement points.
For example, the THDP0200 probe (shown)
can measure a maximum of 1,000 V
II between either input and ground, and a
maximum difference of 1,500 V (DC + peak
AC) between the (–) and (+) inputs. These
input ratings are valid for both range settings.
The other probes covered in this manual
have different limits; refer to Specifications.
(See Table 6 on page 27.)
CAUTION. Do not use these probes above
the input limits shown on the probes. The
input voltage limits vary by probe model.
RMS
CAT
Overrange Indicator
Probe Operating
Information
The OVERRANGE indicator lights red if
the voltage of the input differential signal
exceeds
When this happens, the signal on the probe
output does not accurately represent the
signal
WARNING. The Overrange indicator
does not detect o verrange condition of
commo
potential at the probe inputs. The Overrange
indicator only detects differentially between
the + a
Do no
or input voltage-to-earth ratings of the probe
when taking measurements. (See page 25,
Over
If yo
measurement of each point you are intending
to measure differentially first. Make a
sin
input lead to ground (the "–" input) and then
connecting the other lead (the “+" input) to
the
the linear range of the range setting.
on the probe input.
n-mode voltages or voltage-to-earth
nd – inputs (not relative to ground).
t exceed the common-mode voltage
range Detection.)
u are not sure, make a single-ended
gle-ended measurement by tying one
points of interest, one at a time.
THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual 4
Probe Operating
Voltage Range Button and
Indicators
Press the RANGE button to select between
the voltage range (attenuation) settings of
the probe. The voltage range is indicated by
two LEDs on the probe and may be displayed
on the oscilloscope screen, depending on
the oscilloscope model.
The OVERRANGE LED lights if the applied
voltage exceeds the selected range. To
extinguish the LED, select a higher range.
If a higher range is not available, do not
attempt to take the measurement with the
probe.
Bandwidth Limit Button and
Indicators
Press the BANDWIDTH LIMIT button to
limit the probe bandwidth to 5 MHz. 5 MHz
is close t
switching transistors (FETs) in switch mode
power supplies (SMPS).
The 5 MHz
and testing of power supplies in switch mode
by removing all high frequency content, noise
and har
Press the button again to return to the FULL
position, which selects the full specified
bandwi
Information
o the switching frequency of most
filter assists in the characterization
monics from the measurement.
dth of the probe.
le Overrange On/Off Button
Audib
and Indicators
The audible overrange is an audible alarm
that indicates w hen the measured signal
exceeds the selected r ange. The alarm is
enabled when the probe is first powered on.
Press the AUDIBLE OVERRANGE button to
light the OFF LED and disable the feature.
To enable the alarm, press the button again
to light the ON LED.
5 THDP0100/0200 & TMDP0200 High Voltage Differential Probes Instruction Manual
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