Teledyne Lecroy ADP300 User manual

Operator’s
Manual
A
DP300/305
Active Differential Probe

© 2013 Teledyne LeCroy, Inc. All rights reserved.
Unauthorized duplication of Teledyne LeCroy documentation materials other than
for internal sales and distribution purposes is strictly prohibited. However, clients
are encouraged to distribute and duplicate Teledyne LeCroy documentation for
their own internal educational purposes.
WaveSurfer, WaveRunner, and Teledyne LeCroy are registered trademarks of
Teledyne LeCroy, Inc. Windows is a registered trademark of Microsoft Corporation.
Other product or brand names are trademarks or requested trademarks of their
respective holders. Information in this publication supersedes all earlier versions.
Specifications are subject to change without notice.
Warranty
Teledyne LeCroy warrants this oscilloscope accessory for normal use and operation
within specification for a period of one year from the date of shipment. Spare parts,
replacement parts and repairs are warranted for 90 days.
In exercising its warranty, Teledyne LeCroy, at its option, will either repair or
replace any assembly returned within its warranty period to the Customer Service
Department or an authorized service center. However, this will be done only if the
product is determined by Teledyne LeCroy’s examination to be defective due to
workmanship or materials, and the defect is not caused by misuse, neglect,
accident, abnormal conditions of operation, or damage resulting from attempted
repair or modifications by a non-authorized service facility.
The customer will be responsible for the transportation and insurance charges for
the return of products to the service facility. Teledyne LeCroy will return all
products under warranty with transportation charges prepaid.
This warranty replaces all other warranties, expressed or implied, including but not
limited to any implied warranty of merchantability, fitness or adequacy for any
particular purposes or use. Teledyne LeCroy shall not be liable for any special,
incidental, or consequential damages, whether in contract or otherwise.
923079-00 Rev A
June 2013

Table of Contents
Safety Instructions...................................................................................1
Introduction ............................................................................................3
Specifications ..........................................................................................4
Standard Accessories ...............................................................................7
Operation..............................................................................................11
Connecting the Probe to the Test Instrument ........................................11
Connecting the Probe to the Test Circuit................................................11
Operation with a Teledyne LeCroy Oscilloscope.....................................12
Smart Offset ............................................................................................12
Bandwidth Limit (ADP305 only) ..............................................................12
Auto Zero.................................................................................................12
Remote Control Commands ................................................................... 13
Command List..........................................................................................13
Probe Auto Zero ......................................................................................14
Probe Bandwidth Limit............................................................................14
Probe Coupling........................................................................................15
Probe Offset ............................................................................................16
Probe Volts/div........................................................................................17
Maintenance ......................................................................................... 18
Calibration Interval..................................................................................18
Service Strategy.......................................................................................18
Troubleshooting ......................................................................................18
Returning a Defective Probe ...................................................................19
Replacement Parts ..................................................................................20
Functional Test ...................................................................................... 21
Performance Verification ....................................................................... 22
Reference Information........................................................................... 27
Differential Mode and Common Mode...................................................27
Differential Mode Range and Common Mode Range.............................
27
Common Mode Rejection Ratio..............................................................27
Certifications ...........................................................................................28
Contact Teledyne LeCroy ........................................................................32

Operator’s Manual
Safety Instructions
This section contains instructions that must be observed to keep this
oscilloscope accessory operating in a correct and safe condition. You are
required to follow generally accepted safety procedures in addition to the
precautions specified in this section. The overall safety of any system
incorporating this accessory is the responsibility of the assembler of the
system.
Symbols
These symbols may appear on the ADP30x probe body or probe acccessories or
in this manual to alert you to important safety considerations.
WARNING. High Voltage, risk of electric shock.
CAUTION. Potential for damage to probe or instrument it is connected to.
Attend to the accompanying information to protect against personal injury or
damage. Do not proceed until conditions are fully understood and met.
ELECTROSTATIC DISCHARGE (ESD) HAZARD. The probe is susceptible to
damage if anti-static measures are not taken.
DOUBLE INSULATION
PROTECTIVE (EARTH) TERMINAL
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ADP30x Probe
Precautions
To avoid personal injury or damage to property, review and comply with the
following safety precautions.
Use product only as specified.
Do not overload. To avoid electric shock or fire hazard, do not apply any
potential that exceeds the maximum rating of the probe and/or the probe
accessory, whichever is less.
Connect and disconnect properly. To avoid electric shock or fire hazard, always
make the connections from the probe input leads to the probe accessory that
you intend to use before making any connections to a voltage source.Do not
connect or disconnect accessories to a votage source unless they are first
connected to the probe input leads.
Use only accessories compatible with the probe. Use only accessories that are
rated for the application. Substituting other accessories may create a potential
shock or burn hazard. Ensure connections between probe input leads and probe
accessories are secure before connecting them to a voltage source.
Comply with voltage derating curve. When measuring higher frequency signals,
comply with the Voltage vs. Frequency Derating Curve (see Page 6).
Observe all terminal ratings. To avoid electric shock or fire, do not use the
probe above the input limits shown on the probe as well as all accessories.
Do not remove probe casing. Removing the probe’s case or touching exposed
connections may result in electric shock.
Use only within operational environment listed. Do not use in wet or explosive
atmospheres. Keep product surfaces clean and dry.
Handle with care. Probe accessory tips are sharp. They can puncture skin or
cause other bodily injury if not handled properly.
Keep fingers behind the finger guard of the probe accessories.
Do not operate with suspected failures. Before each use, inspect the probe and
accessories for any damage such as tears or other defects in the probe body,
cable jacket, accessories, etc. If any part is damaged, cease operation
immediately and sequester the probe from inadvertent use.
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Operator’s Manual
Introduction
The ADP30x family of high voltage active differential probes is safe, easy-to-use,
and ideally suited for power measurements.
The 20 MHz ADP300 is perfect for troubleshooting low frequency power circuits,
and other circuits where the reference potential is elevated from ground or the
location of ground is unknown.
The 100 MHz ADP305 is designed for measuring high-speed floating voltages
found in today’s power electronics, like switching power supplies.
With the ProBus interface, the ADP30x becomes an integral part of the
oscilloscope. For the ADP305, the attenuation, offset, and bandwidth limit are all
controlled from the oscilloscope’s front panel or by means of remote control
commands. This means that the complete measurement setup can be saved and
recalled by the oscilloscope and all measurement values will be correct. The
oscilloscope provides power to the probe, so there is no need to worry about a
separate power supply or changing batteries.
The sensitivity of the ADP300 ranges from 1 V/div to 350 V/div; and the
sensitivity for the ADP305 ranges from 200 mV/div to 350 V/div.
Attenuation is automatically selected by the oscilloscope to either ÷100 or
÷1000.
Key Benefits
•True Differential Measurements
•EN 61010-031 1000 V CAT III Safety Compliance (when used with
correspondingly rated probe accessories)
•ProBus Interface with Automatic Scaling
•Auto-Zeroing
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ADP30x Probe
Specifications
Nominal Characteristics
Nominal characteristics describe parameters and attributes that are guaranteed
by design, but do not have associated tolerances.
Sensitivity:
ADP300 1 V/div to 350 V/div
ADP305 200 mV/div to 350 V/div
Input Configuration True Differential, + and – inputs
Maximum Input Voltage 1000 V rms, either input to
ground, CAT III.
1400 Vp, between inputs
Output Configuration Single ended, Ground referenced
Intended Output Load 1 MΩ
Output Connector ProBus
Input Attenuation ÷100 or ÷1000
Bandwidth Limit Filter 20 MHz
(ADP305 only)
Interface ProBus
Oscilloscope Compatibility Teledyne LeCroy LT or LC series
oscilloscopes with firmware version 8.5 or
higher; or X-Stream oscilloscopes.
(Not available for 9300 series oscilloscopes)
Warranted Characteristics
Warranted characteristics are parameters with guaranteed performance. Unless
otherwise noted, tests are provided in the "Performance Verification Procedure"
for all warranted specifications.
Low Frequency Accuracy ±1% of reading (÷1000 Atten)
(probe only) ±2% of reading (÷100 Atten)
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Operator’s Manual
Typical Characteristics
Typical characteristics are parameters with no guaranteed performance. Tests
for typical characteristics are not provided in the "Performance Verification
Procedure."
Bandwidth:
ADP300 20 MHz
ADP305 100 MHz
Rise Time:
ADP300 < 17.5 ns
ADP305 < 3.5 ns
Slew Rate, referenced to input:
ADP300 60 000 V/µs
ADP305 300 000 V/µs
AC Noise < 50 mV rms
Common Mode Rejection:
50 Hz / 60 Hz 80 dB (10 000:1)
100 kHz 50 dB (300:1)
Input Impedance 4 MΩ || 8 pF either input to ground
Propagation Delay 20 ns
Environmental Characteristics
Temperature, operating 0 °C to 50 °C (32 to 122 °F)
Usage Indoor
Relative Humidity 80% max. up to 31 °C, decreasing linearly to
40% max. at 50 °C
Altitude 3000 m (9842 ft) max. at 25 °C
Physical Characteristics
Weight 300 g
Overall Length 2 m
Input Lead Length 40 cm
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ADP30x Probe
Voltage vs Frequency Derating Curve
Input Voltage and Burn Limit vs. Frequency
NOTE: The voltage derating curve provides the maximum voltage that can be
applied to the probe inputs without risking damage to the probe.
The Burn Limit is the voltage limit that should be used when the input leads
are being hand-held. This limit is derived using the methodology described in
EN 61010-031 section 6.3.1.2.
WARNING. To avoid risk of electric shock or burn, comply with the burn
limits of the voltage vs. frequency derating curve when measuring high-
frequency signals with hand-held accessories.
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