Teledyne Lecroy DL03-ISO User manual

User Manual
DL
-ISO High Voltage
Optically Isolated Probes
D
L03-ISO, DL07-ISO, DL10-ISO

DL-ISO High Voltage Optically Isolated Probes User Manual
© 2022 Teledyne LeCroy, Inc. All rights reserved.
Unauthorized duplication of Teledyne LeCroy documentation materials is strictly prohibited.
Customers are authorized to duplicate and distribute Teledyne LeCroy documentation for internal
training purposes.
Teledyne LeCroy is a trademark of Teledyne LeCroy, Inc. 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.
dl-iso-user-manual_10jun22.pdf
June, 2022

User Manual
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Contents
Safety .................................................................................................................................................. 1
Symbols...........................................................................................................................................1
Terms...............................................................................................................................................1
General Safety Precautions .........................................................................................................1
High Voltage Safety.......................................................................................................................2
Clearance Requirements..............................................................................................................2
Laser Safety....................................................................................................................................4
Safe Operating Environment .......................................................................................................5
Introduction........................................................................................................................................ 6
Key Features...................................................................................................................................6
Compatibility...................................................................................................................................6
Required Firmware Versions .......................................................................................................6
DL-ISO Probe System ....................................................................................................................... 7
Standard Parts ...............................................................................................................................7
Probe Tips (at least one required) ..............................................................................................8
DL-ISO Probe Specifications............................................................................................................ 9
Electrical Characteristics .............................................................................................................9
Noise and Electromagnetic Compatibility (EMC)................................................................. 10
Dimensions.................................................................................................................................. 10
Tip Specifications ....................................................................................................................... 11
Bandwidth by Model .................................................................................................................. 12
Bandwidth by Tip ........................................................................................................................ 12
Input Impedance vs. Frequency............................................................................................... 13
Max. Non-destruct Voltage (tip derating)............................................................................... 14
Max. Operating Voltage (tip derating)..................................................................................... 14
Common Mode Rejection Ratio (CMRR) ............................................................................... 15
Equivalent Circuit........................................................................................................................ 16
Operation ..........................................................................................................................................17
Connecting the Probe to the Test Instrument....................................................................... 17
Connecting Tips to the Probe Head........................................................................................ 17
Connecting Tips to the Test Circuit......................................................................................... 17
Operating with an Oscilloscope ............................................................................................... 18

DL-ISO High Voltage Optically Isolated Probes
ii
Performance Verification ...............................................................................................................21
Required Test Equipment ......................................................................................................... 21
Before You Begin ........................................................................................................................ 22
Functional Check ........................................................................................................................ 22
RMS Noise Check....................................................................................................................... 22
Gain Accuracy Check................................................................................................................. 23
DL-ISO Performance Verification Test Record ...........................................................................25
Care and Maintenance....................................................................................................................26
Checking Probe Cable................................................................................................................ 26
Cleaning the Probe Body........................................................................................................... 26
Calibration Interval ..................................................................................................................... 26
Service Strategy .......................................................................................................................... 26
Reference..........................................................................................................................................27
Returning a Product for Service ................................................................................................ 27
Technical Support ...................................................................................................................... 27
Warranty....................................................................................................................................... 28
Certifications ............................................................................................................................... 29

User Manual
1
Safety
Follow these instructions to keep the probe operating in a correct and safe condition. Observe
generally accepted safety procedures in addition to the precautions specified here. The overall
safety of any system incorporating this accessory is the responsibility of the system owner.
Symbols
These symbols appear on the probe and accessories or in this manual to alert you to important
safety considerations.
DANGER, HIGH VOLTAGE. Risk of electric shock or burn.
CAUTION of damage to probe or instrument, or WARNING of hazard to health. Attend to the
accompanying information to protect against personal injury or damage. Do not proceed until
conditions are fully understood and met.
ESD CAUTION. Risk of Electrostatic Discharge (ESD) that can damage the probe or instrument
if anti-static measures are not taken.
Laser Safety WARNING.
Terms
The terms isolated and electrically floating are used in documentation to indicate measurements
where there is no direct conduction path to earth ground.
General Safety Precautions
The overall safety of any system incorporating this probe is the responsibility of the system owner.
For use only by trained personnel. Not for use in households or by children.
Use only as specified. Using the probe and/or the equipment it is connected to in a manner other
than specified may impair the protection mechanisms.
Before use, test the probe with a known source to ensure it is operating correctly.
Do not overload; observe all terminal ratings. Do not connect the probe to any circuit that exceeds
the CAT, voltage or current ratings of the oscilloscope terminal, probe or probe-accessory
combination.
Use only accessories compatible with the probe. Use only accessories that are rated for the
application. Using accessories other than those shipped with the probe may create an electrical
hazard.
Connect and disconnect properly. Connect the probe to the oscilloscope before connecting to the
circuit being measured. De-energize the circuit under test before connecting probe tips.

DL-ISO High Voltage Optically Isolated Probes
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Keep the probe head and fiber-optic cable away from the circuits being measured. Only tips are
intended for contact with electrical sources.
Do not excessively bend cables. Avoid tight radius bends, crushing, crimping, twisting or otherwise
stressing cables.
Do not remove the probe’s casing. Touching exposed connections may result in electric shock.
Do not disassemble the probe or remove inside parts. Refer all service to Teledyne LeCroy
personnel.
Use only indoors within the operational environment listed. Do not use in wet or explosive
atmospheres.
Keep product surfaces clean and dry.
Do not use damaged cables. Before each use, check cables for damage to the protective
insulation.
Do not operate with suspected failures. Before each use, inspect the probe and accessories. If any
part is damaged, cease operation immediately and secure the probe from inadvertent use.
High Voltage Safety
Not rated for hand-held use. Do not handle probe tip connectors, cables or any part of the probe
head at any time if there is any possibility >60 Vdc/30 Vrms is present in the circuit. The plastic
case of the probe head and tip shields do not provide safe isolation.
Do not connect tips to an energized circuit. Always de-energize the circuit under test before
installing or removing tips.
Beware when using with high-voltage or high-frequency signals. Read the manual thoroughly
before use to understand how the probe and accessories are derated depending on use. Refer to
the tip derating and RF burn limit graphs.
Clearance Requirements
The unique common mode voltage range of the probe system allows it to be used in the presence
of high-frequency/high-voltage common mode signals, but it is important to observe all
precautions while using it.
WARNING: RF burns or electric shock can occur when using the DL-ISO probes.The plastic case of
the probe head and tip shields do not provide safe isolation from hazardous common mode
voltages. Do not access the probe while measuring signals in the RF burn risk area.

User Manual
3
Maximum safe handling limits for common mode voltages
between the probe head and tips with respect to earth ground.
WARNING: Maintain 1 m (~40 in) safe clearance of the probe head and tip in all directions when
connected to an energized circuit. Place the oscilloscope and any equipment you need to access at
least 1 m from the circuit and probe head.

DL-ISO High Voltage Optically Isolated Probes
4
Laser Safety
WARNING: The DL-ISO probes contain multiple lasers, exposing which may cause laser burns. Do
not remove any plastic or metal covers or otherwise attempt to disassemble the probe.
Using controls, adjustments or procedures other than those specified in this manual may result in
exposure to hazardous levels of invisible radiation.
The probe uses optical fibers within a single cable between the probe head and control module.
Therefore, standard optical fiber handling practices are required. Avoid tight radius bends, crushing,
crimping, twisting or otherwise stressing the fiber-optic cable.
Minimum cable radius bend is 2 in (5.1 cm); avoid making loops smaller than 4 in (10.2 cm).
Before each use, inspect the fiber-optic cable for damage such as tears or other defects. If the
inner corrugated plastic sleeve is visible or punctured, cease operation immediately and secure the
probe from inadvertent use.
CLASS 1 LASER PRODUCT
Outer sleeve
(soft woven material)
Inner sleeve
(hard corrugated plastic)

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5
Safe Operating Environment
Temperature, Operating, 5 °C to 40 °C
Probe Head
Temperature, Operating, 10 °C to 35 °C
Control Module
Temperature, Non-operating -20 °C to 70 °C
Relative Humidity 5% to 95% RH (non-condensing)
75% RH above 30 °C
45% RH above 50 °C
Altitude, Operating 3000 m (9842 ft.) maximum
Altitude, Non-Operating 10,000 m (32,807 ft.) maximum
Usage Indoor Use Only
Pollution Degree* 2, an operating environment where normally only dry, non-
conductive pollution occurs. Conductivity caused by
temporary condensation should be expected.
* Per IEC/EN 61010-2-030:2021.
The soft storage case and packaging materials shipped with the probe may not be
suitable for certain ESD sensitive areas, such as EPAs (ESD Protected Areas). If this is a
concern for your application, please take the necessary steps required for your test
environment.
.

DL-ISO High Voltage Optically Isolated Probes
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Introduction
The DL-ISO probes enable the highest confidence in GaN and SiC device characterization with
highest accuracy, best signal fidelity and comprehensive connectivity for testing servers,
motherboards, mobiles, lighting and building automation, residential inverters, UPS, switch mode
power supplies and motors. With up to 1 GHz bandwidth, 2500 V differential input range and 60 kV
common mode range, they provide an industry-leading 1.5% system accuracy when used with
12-bit High Definition Oscilloscopes (HDOs).
Key Features
•1 GHz bandwidth
•Ideal for GaN and SiC devices
•1.5% system accuracy (probe plus oscilloscope)
•435 ps rise time
•High CMRR—160 dB
•Flexible connectivity options
•Auto Zero without disconnection
Compatibility
DL-ISO probes are compatible with a wide range of Teledyne LeCroy oscilloscopes equipped with
the ProBus interface. To confirm compatibility with your oscilloscope model, visit:
https://teledynelecroy.com/probes/probemodel.aspx?modelid=11667&categoryid=3&mseries=537
Required Firmware Versions
Correct operation of the DL-ISO probes requires that the oscilloscope be installed with MAUI®
firmware version 9.9.x.x. or higher.

User Manual
7
DL-ISO Probe System
Standard Parts
DL-ISO Probe
The probe head contains a frequency modulating optical transmitter and receiver integrated with a
high-performance electrical amplifier. It is connected to the control module by an integrated fiber-
optic cable. The control module utilizes the ProBus interface to communicate tip attenuation value
and proper voltage scaling to the oscilloscope. When connected to a ProBus interface, the DL-ISO
probe becomes an integral part of the measuring instrument, able to be controlled through the
oscilloscope application or front panel.
DL-ISO probe head with tip (left) and control module with connector box (right)
External AC to DC Adapter
The probe is powered by an external AC to DC adapter that is connected to the control module.
Connect to standard AC power outlets.
CAUTION: Use only the adapter shipped with the probe. To prevent damage, the probe must
be powered from a supply that provides appropriately isolated and floating output voltage
(i.e., no Earth connection). Extra adapters can be ordered from CUI, Inc., Part Number:
SMI36-24.
Tripod Probe Mount
Non-conductive tripod secures probe and tip above the circuit in a stationary test setup.
Soft Storage Case
Soft case with a custom foam insert for storing probe and tips.
Probe Tip
Probe Head
Control Module
Connector Box

DL-ISO High Voltage Optically Isolated Probes
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Probe Tips (at least one required)
Probe tips are sold separately from the probe itself, but at least one tip is required for proper
functioning. Tips can be stored in a compartment in the soft carrying case.
The 2 Vpp through 200 Vpp MMCX Tips are high-quality coaxial attenuating tips that reject
unwanted noise while terminating into standard MMCX connectors.
MMCX tip
The DL-ISO-M2S Square Pin Adapter can be used to connect MMCX tips to square-pin headers.
Mating pins must measure 25 mil/0.025” or 0.06 mm x 0.06 mm with a pitch of 0.1” between pins.
Description
Part Number
Quantity
2 Vpp MMCX Tip
DL-ISO-2V-TIP
1
10 Vpp MMCX Tip
DL-ISO-10V-TIP
1
40 Vpp MMCX Tip
DL-ISO-40V-TIP
1
200 Vpp MMCX Tip DL-ISO-200V-TIP 1
MMCX to High Voltage Square Pin Adapter
DL-ISO-M2S
1
Each tip communicates identifying information to the probe. The tip rating determines the peak-to-
peak voltage level that can be measured.
Note: Tip selection is important to optimize for best noise performance. Using a tip with a wider
dynamic voltage range than necessary will result in more noise.
All tips are interchangeable with any DL-ISO probe and do not require specialized calibration with a
specific DL-ISO probe. Simply insert the correctly rated tip into the connector on the probe head.

User Manual
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DL-ISO Probe Specifications
For complete specifications, see the product datasheet. Specifications are subject to change
without notice.
Electrical Characteristics
DL03-ISO
DL07-ISO
DL10-ISO
Bandwidth
350 MHz
700 MHz
1 GHz
Risetime10
-90% 1.1 ns 575 ps 435 ps
Input Dynamic Voltage Range
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
2 Vpp
10 Vpp
40 Vpp
200 Vpp
Common Mode Voltage
Range +/- 60 kV (DC + peak AC)
Maximum Input Voltage to Earth
+/- 60 kV (DC + peak AC)
Maximum Operating Voltage (DC+Peak AC)
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
26 V
55 V
170 V
250 V
Maximum Non-destruct Voltage (DC+Peak AC)
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
50 V
100 V
250 V
300 V
Sensitivity
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
20 mV/div to 250 mV/div
100 mV/div to 1.3 V/div
400 mV/div to 5 V/div
2 V/div to 25 V/div
DC Gain Accuracy (probe + oscilloscope)
1.5% after Precision Gain Calibration
DC Gain Drift
<1% /
°
C
Offset
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
±25 V
±50 V
±150 V
±150 V
Input Impedance
DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
200 kΩ || 3.6 pF
1 MΩ || 2.1 pF
1 MΩ || 2.1 pF
7.5 MΩ || 2.0 pF
Output Termination
50 Ω
Input/Output Coupling
DC only
Interface
ProBus

DL-ISO High Voltage Optically Isolated Probes
10
WARNING: The probe is not intended for hand-held use. Always maintain adequate spacing
between floating probe components and earth ground when measuring high voltages in a
stationary test setup.
Noise and Electromagnetic Compatibility (EMC)
DL03-ISO
DL07-ISO
DL10-ISO
Noise (typical)
DL-ISO-2V-TIP (100 mV/div)
DL-ISO-10V-TIP (500 mV/div)
DL-ISO-40V-TIP (2 V/div)
DL-ISO-200V-TIP (10 V/div)
2.3 mVrms
11.5 mVrms
46.0 mVrms
230.0 mVrms
3.0 mVrms
15.0 mVrms
60.0 mVrms
300.0 mVrms
3.4 mVrms
17.0 mVrms
68.0 mVrms
340.0 mVrms
Electrostatic Discharge (ESD) Immunity
8 kV contact discharge, 10 kV air discharge
per IEC61000-4-2, criteria A
Radiated RF Electromagnetic Field Immunity
Probe Tip and Probe Head
Up to 25 V/m (80 MHz to 2.7 GHz)
per IEC61000-4-3, criteria A
when operating in standard configuration*
Control Module
Up to 3 V/m (80 MHz to 2.7 GHz)
per IEC61000-4-3, criteria A
when operating in standard configuration*
Immunity to Conducted Disturbance
Induced by RF Fields
Probe Tip and Probe Head
Up to 10 V (150 kHz to 80 MHz)
per IEC61000-4-6, criteria A
when operating in standard configuration*
Control Module
Up to 3 V (150 kHz to 80 MHz)
per IEC61000-4-6, criteria A
when operating in standard configuration*
* Standard configuration is a test setup with probe head positioned close to DUT and at least 1 m from control module,
oscilloscope near control module, and all laboratory conditions within environmental range listed on page 5.
Dimensions
Probe Head
Width 58 mm
Length
220.7 mm (not including strain relief)
Height 32 mm
Fiber-optic Cable Length
(tip to oscilloscope input)
3.375 m (11 ft.)
Control Module
Width 106.1 mm
Length
229.8 mm (not including strain relief)
Height 57.8 mm

User Manual
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Tip Specifications
The measurement terminals of the probe as well as all accessories are to be used only for
measurements on circuits not directly connected to the mains. Use only accessories correctly
rated for the Measurement Category (CAT), voltage, temperature, altitude and amperage of any
measurement.
Note: All tips are No Rated Measurement Category per IEC/EN 61010-2-030:2021 definitions. No
Rated Measurement Category applies to circuits that are not directly connected to the mains
supply.
Part Number
Input Dynamic Range
Max. Operating Voltage*
(DC + Peak AC)
Max. Non-destruct Voltage*
(DC + Peak AC)
DL-ISO-2V-TIP 2 Vpp 26 V 50 V
DL-ISO-10V-TIP
10 Vpp
35 V
100 V
DL-ISO-40V-TIP
40 Vpp
170 V
250 V
DL-ISO-200V-TIP
200 Vpp
200 V
300 V
* Value at DC. Refer to the Non-destruct Input Voltage (tip derating) graph for values at higher frequencies.
WARNING: The probe and accessories are not rated for CAT II, III or IV measurements. Do
not exceed the CAT, voltage or current rating of the tip selected for measurement.

DL-ISO High Voltage Optically Isolated Probes
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Bandwidth by Model
Typical frequency response of the DL-ISO probes when used with the DL-ISO-2V-TIP:
Bandwidth by Tip
Typical frequency response of the DL10-ISO probe when used with the following tips:

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Input Impedance vs. Frequency

DL-ISO High Voltage Optically Isolated Probes
14
Max. Non-destruct Voltage (tip derating)
Max. Operating Voltage (tip derating)

User Manual
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Common Mode Rejection Ratio (CMRR)
CMRR varies by tip and measurement frequency. The table below shows typical values.
Probe Tip
DC
1 MHz
100 MHz
200 MHz
500 MHz
1 GHz
DL-ISO-2V-TIP
160 dB
110 dB
90 dB
90 dB
80 dB
75 dB
DL-ISO-10V-TIP
160 dB
100 dB
75 dB
75 dB
65 dB
65 dB
DL-ISO-40V-TIP
150 dB
100 dB
70 dB
60 dB
60 dB
50 dB
DL-ISO-200V-TIP
140 dB
95 dB
55 dB
50 dB
45 dB
35 dB
CMRR in decibels (dB) is shown in the plot below. All discontinuities are due to a combination of
noise floor limitations of the measurement device and amplification capabilities of the generators.

DL-ISO High Voltage Optically Isolated Probes
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Equivalent Circuit
Probe Tip
C1
C2
C3
R2
R3
DL-ISO-2V-TIP
1.2 pF
1.3 pF
0.01 pF
200 kΩ
125 Ω
DL-ISO-10V-TIP
1.2 pF
0.55 pF
0.05 pF
1.0 MΩ
700 Ω
DL-ISO-40V-TIP
1.6 pF
0.5 pF
1.5 pF
1.0 MΩ
3.0 kΩ
DL-ISO-200V-TIP
1.4 pF
1.0 pF
1.0 pF
7.5 MΩ
2.5 kΩ