Tektronix P5102 User manual
P5102
100 MHz High-Voltage Probe
Instructions
070-9294-01
Copyright Tektronix, Inc. 1995. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and
pending. Information in this publication supercedes that in all previously
published material. Specifications and price change privileges reserved.
Printed in the U.S.A.
Tektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000
TEKTRONIX, TEK, TekTools, and TekScope are registered trademarks of
Tektronix, Inc.
P5102 Instructions i
Table of Contents
General Safety Summary iii. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Features and Accessories 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Basics 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Non-destructive Input Voltage 5. . . . . . . . . . . . . . . . .
Common Lead Length 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Probe Loading 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustment Procedures 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LF Compensation 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
HF Compensation 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Performance Verification 13. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Instructions 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Customer Support 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preparation for Shipment 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replaceable Parts 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents
ii P5102 Instructions
List of Figures
Figure 1: Waveform Distortion from Common Lead Length 5. .
Figure 2: Probe Loading Equivalent Circuit 6. . . . . . . . . . . . . . .
Figure 3: LF Compensation Setup 7. . . . . . . . . . . . . . . . . . . . . . .
Figure 4: LF Compensation Adjustment 8. . . . . . . . . . . . . . . . . .
Figure 5: Signal Source Characteristics for HF Compensation 8.
Figure 6: Opening the Compensation Box 9. . . . . . . . . . . . . . . .
Figure 7: HF Compensation Setup 10. . . . . . . . . . . . . . . . . . . . . .
Figure 8: HF Compensation Adjustments 11. . . . . . . . . . . . . . . . .
Figure 9: HF Compensation Regions of Fast Rise Signal 12. . . . .
Figure 10: Bandwidth Test Setup 14. . . . . . . . . . . . . . . . . . . . . . .
Figure 11: Maximum Voltage Derating Curves
(VRMS, DC Coupled) 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 12: Typical Input Impedance 19. . . . . . . . . . . . . . . . . . . . .
Figure 13: Typical Input Phase 20. . . . . . . . . . . . . . . . . . . . . . . . .
Figure 14: P5102 Replaceable Parts 22. . . . . . . . . . . . . . . . . . . . .
List of Tables
Table 1: Required Test Equipment 13. . . . . . . . . . . . . . . . . . . . . .
Table 2: Warranted Electrical Specifications 17. . . . . . . . . . . . . . .
Table 3: Typical Electrical Characteristics 19. . . . . . . . . . . . . . . .
Table 4: Typical Mechanical Characteristics 21. . . . . . . . . . . . . .
Table 5: Environmental Specifications 21. . . . . . . . . . . . . . . . . . .
P5102 Instructions iii
General Safety Summary
Review the following safety precautions to avoid injury and prevent
damage to this product or any products connected to it.
Only qualified personnel should perform service procedures.
Injury Precautions
Avoid Electric Overload. To avoid injury or fire hazard, do not apply
potential to any input, including the common inputs, that varies from
ground by more than the maximum rating for that input.
Avoid RF Burns While Handling Probe. To avoid RF burns, do not handle
the probe while the common lead is connected to circuits above the
voltage and frequency limits specified in Figure 11b on page 18.
Avoid Electric Shock. To avoid injury or loss of life, do not connect or
disconnect probes or test leads while they are connected to a voltage
source.
Do Not Operate Without Covers. To avoid electric shock or fire hazard,
do not operate this product with covers or panels removed.
Do Not Operate in an Explosive Atmosphere. To avoid injury or fire
hazard, do not operate this product in an explosive atmosphere.
Keep Probe Surface Clean and Dry. To avoid electric shock and
erroneous readings, keep probe surface clean and dry.
Product Damage Precautions
Do Not Operate With Suspected Failures. If you suspect there is damage
to this product, have it inspected by qualified service personnel.
Do Not Immerse in Liquids. Clean the probe using only a damp cloth.
Refer to cleaning instructions on page 15.
Safety Terms and Symbols
Terms in This Manual. These terms may appear in this manual:
General Safety Summary
iv P5102 Instructions
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.
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.
Symbols on the Product. These symbols may appear on the product:
ProtectiveGround
(Earth)Terminal ATTENTION
Refer to Manual Double
Insulated
DANGER
High Voltage
Certifications and Compliances
Compliances. Consult the product specifications for Overvoltage
Category and Safety Class.
Overvoltage Category. Overvoltage categories are defined as follows:
CAT III: Distribution level mains, fixed installation
CAT II: Local level mains, appliances, portable equipment
CAT I: Signal level, special equipment or parts of equipment,
telecommunication, electronics
P5102 Instructions 1
Features and Accessories
The P5102 is a high-voltage passive probe designed for use with
TekScope THS 700 series instruments. The probe features a floating
common and is ideal for measuring and troubleshooting power
supplies and high-voltage devices. The probe provides 10X
attenuation of signals up to 1000 VRMS and derated performance up
to 100 MHz. The P5102 probe is certified to international safety
standards.
The P5102 probe has features and accessories to make high-voltage
measurements safer and easier. Please take a moment to familiarize
yourself with these features and accessories and their uses.
WARNING. Do not substitute accessories from other products for
those provided with the P5102. The accessories for the P5102 have
been safety tested. The use of non-tested accessories may cause
injury.
P5102 Features and Standard Accessories
Probe
Common
6-32 Probe Tip
Finger
Guard Probe Body – The P5102 probe body is designed for personal
safety, ergonomic comfort, and signal fidelity.
The finger guard provides protection when the hook tips are not being
used. Keep your fingers behind the finger guard whenever possible to
reduce the risk of a shock from the circuit under test.
The probe tip is a 6–32 threaded post that accepts both standard and
optional accessories.
Keepthe probebodyand accessoriescleantoreducetheriskofshock
due to surface conduction.
Features and Accessories
2P5102 Instructions
P5102 Features and Standard Accessories (Cont.)
Compensation Box – The compensation box contains low- and
high-frequencycompensationadjustments.Thehigh-frequencyadjust-
ments are accessible by removing the compensation box cover. Refer
to Adjustments on page 7.
Adjustment Tool – Use the supplied adjustment tool for probe
compensation adjustments. Do not use metallic or conductive tools
while making adjustments.
Matching
Markers
Color Markers – The matching markers help you identify probe
inputs at a glance. Clip one marker near the probe head and the
matching marker near the compensation box as shown.
Small Hook Tip – Use the small hook tip for making connections to
small conductors such as component leads.
Install the small hook tip by sliding it over the body of the probe and
screwing it onto the threaded probe tip.
To use the tip, hold the probe body and pull the tip shield back. Hook
the tip onto the circuit and release the shield. The hook tip will firmly
hold the conductor under test.
Features and Accessories
P5102 Instructions 3
P5102 Features and Standard Accessories (Cont.)
Large Hook Tip – Use the large hook tip when working with larger
components such as bolt terminals and buss bars typically found in
power distribution equipment.
Install the large hook tip by sliding it over the body of the probe and
screwing it onto the threaded probe tip.
Tousethetip,holdtheprobebodyandpullthetipshieldback.Hookthe
tipontothecircuitandreleasetheshield.Thehooktipwillfirmlyholdthe
conductor under test.
Common Leads – The P5102 probe comes with a long and a short
floating common lead. Both common leads connect to a removable
crocodile clip.
Attachthe common leadto theprobe bodyby insertingtheprobe head
into common lead as shown.
The length of the common lead directly impacts the fidelity of high-fre-
quency signals. The longer the common lead, the more the signal will
be distorted. For more information about the common lead and signal
quality, go to page 5.
Crocodile Clip – The large crocodile clip attaches to the insulated
banana connector on the common leads.
WARNING. For safe electrical connections, use the crocodile clip
provided. Do not attempt to substitute the crocodile clip with any
other accessory.
Features and Accessories
4P5102 Instructions
P5102 Optional Accessories
Probe Tip Extender (P6000) – Use the probe tip extender to con-
nectthe probeto largertest socketslocatedinequipmentoronprinted
circuit boards.
Connect the probe tip extender by screwing it onto the threaded
probe tip.
Ground
Clip
Probe
Common
Probe-to-BNC Adapter – Use the probe-to-BNC adapter to
connect the probe directly to BNC connectors. The adapter is
recommended for use when verifying or adjusting the probe.
Attach the adapter by pressing it onto the 6-32 probe tip and making
sure that the ground clip makes contact with the probe common.
WARNING. Do not connect the adapter to a floating or high-voltage
source. The BNC adapter is only rated to 500 V (DC + peak AC)
with the probe common connected to earth ground.
Table of contents
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