Teledyne LeCroy DL07-ISO, DL03-ISO, DL-ISO-10V-TIP, DL-ISO-2V-TIP, DL-ISO-40V-TIP User manual

User Manual

DL
Optically Isolated Probes

D

-ISO High Voltage

L03-ISO, DL07-ISO, DL10-ISO

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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_01nov22.pdf
November, 2022

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Contents

Safety .................................................................................................................................................. 1

Introduction ........................................................................................................................................ 6

DL-ISO Probe System ....................................................................................................................... 7

DL-ISO Probe Specifications .......................................................................................................... 10

Operation .......................................................................................................................................... 18

Symbols ........................................................................................................................................... 1

Terms ............................................................................................................................................... 1

General Safety Precautions ......................................................................................................... 1

High Voltage Safety ....................................................................................................................... 2

Clearance Requirements .............................................................................................................. 2

Laser Safety .................................................................................................................................... 4

Safe Operating Environment ....................................................................................................... 5

Key Features ................................................................................................................................... 6

Compatibility ................................................................................................................................... 6

Required Firmware Versions ....................................................................................................... 6

Standard Parts ............................................................................................................................... 7

Probe Tips (at least one required) .............................................................................................. 8

Optional Tip Accessories ............................................................................................................. 9

Electrical Characteristics .......................................................................................................... 10

Noise and Electromagnetic Compatibility (EMC) ................................................................. 11

Dimensions .................................................................................................................................. 12

Tip-Accessory Derating ............................................................................................................. 12

Bandwidth by Model .................................................................................................................. 13

Bandwidth by Tip ........................................................................................................................ 13

Input Impedance vs. Frequency ............................................................................................... 14

Max. Non-destruct Voltage (tip derating) ............................................................................... 15

Max. Operating Voltage (tip derating) ..................................................................................... 15

Common Mode Rejection Ratio (CMRR) ............................................................................... 16

Equivalent Circuit ........................................................................................................................ 17

Connecting the Probe to the Test Instrument ....................................................................... 18

Attaching and Removing Tips .................................................................................................. 18

Connecting Tips to the Test Circuit ......................................................................................... 19

Operating with an Oscilloscope ............................................................................................... 20

User Manual

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DL-ISO High Voltage Optically Isolated Probes

Performance Verification ............................................................................................................... 23

DL-ISO Performance Verification Test Record ........................................................................... 28

Care and Maintenance.................................................................................................................... 29

Reference.......................................................................................................................................... 30

Required Test Equipment ......................................................................................................... 23

Before You Begin ........................................................................................................................ 24

Functional Check ........................................................................................................................ 24

RMS Noise Check ....................................................................................................................... 24

Gain Accuracy Check ................................................................................................................. 25

Checking Probe Cable ................................................................................................................ 29

Cleaning the Probe Body ........................................................................................................... 29

Calibration Interval ..................................................................................................................... 29

Service Strategy .......................................................................................................................... 29

Returning a Product for Service ................................................................................................ 30

Technical Support ...................................................................................................................... 30

Warranty ....................................................................................................................................... 31

Certifications ............................................................................................................................... 32

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User Manual

The overall

safety of any system incorporating this accessory is the responsibility of the system owner.

DANGER, HIGH VOLTAGE. Risk of electric shock or burn.

CAUTION of damage to probe or instrument, or WARNING of hazard to health. Attend to t he
ESD CAUTION. Risk of Electrostatic Discharge (ESD) that can damage the probe or instrument

Laser Safety WARNING.

For use only by trained personnel. Not for use in households or by children.

Use only as specified.

Before use, test the probe with a known source

Do not overload; observe all terminal ratings.

Use only accessories compatible with the probe.

Connect and disconnect properly.

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.

Symbols

These symbols appear on the probe and accessories or in this manual to alert you to important
safety considerations.

accompanying information to protec t against personal injury or damage. Do not proc eed until
conditions are fully understood and m et.

if anti-static measures are not taken.

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.

Using the probe and/or the equipment it is connected to in a manner other

than specified may impair the protection mechanisms.

to ensure it is operating correctly.

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 that are rated for the
application. Using accessories other than those shipped with the probe may create an electrical
hazard.

Connect the probe to the oscilloscope before connecting to the

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DL-ISO High Voltage Optically Isolated Probes

Keep the probe head and fiber-optic cable away from the circuits being measured.

Do not excessively bend cables

Do not remove the probe’s casing.

Do not disassemble the probe or remove inside parts.

Use only indoors within the operational environment listed.

Keep product surfaces clean and dry.

Do not use damaged cables.

Do not operate with suspected failures.

Not rated for hand-held use.

Do not connect tips to an energized circuit

Beware when using with high-voltage or high-frequency signals.

WARNING: RF burns or electric shock can occur when using the DL-ISO probes.

circuit being measured. De-energize the circuit under test before connecting probe tips.

Only tips are

intended for contact with electrical sources.

. Avoid tight radius bends, crushing, crimping, twisting or otherwise

stressing cables.

Touching exposed connections may result in electric shock.

personnel.

atmospheres.

Before each use, check cables for damage to the protective

insulation.

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

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.

. Always de-energize the circuit under test before

installing or removing tips.

before use to understand how the probe and accessories are derated depending on use. Refer to
the tip derating and RF burn limit graphs.

Refer all service to Teledyne LeCroy

Do not use in wet or explosive

Read the manual thoroughly

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.

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.

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Maximum safe handling limits for common mode voltages

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.

between the probe head and tips with respect to earth ground.

User Manual

WARNING:

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DL-ISO High Voltage Optically Isolated Probes

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.

Avoid tight radius bends, crushing,

crimping, twisting or otherwise stressing the fiber-optic cable.

Before each use, inspect the fiber-optic cable for damage such as tears or other defects.

Outer sleeve

Inner sleeve

Laser Safety

WARNING:

The probe uses optical fibers within a single cable between the probe head and control module.
Therefore, standard optical fiber handling practices are required.

Minimum cable radius bend is 2 in (5.1 cm); avoid making loops smaller than 4 in (10.2 cm).

inner corrugated plastic sleeve is visible or punctured, cease operation immediately and secure the
probe from inadvertent use.

CLASS 1 LASER PRODUCT

If the

(soft woven material)

(hard corrugated plastic)

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User Manual

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 61010-1:2010.

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.

.

5

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DL-ISO High Voltage Optically Isolated Probes

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:

Required Firmware Versions

Correct operation of the DL-ISO probes with MMCX tips, HV square-pin tips, or tip accessories
requires that the oscilloscope be installed with MAUI

6

®

firmware version 10.1.x.x. or higher.

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DL-ISO Probe System

probe head

control module

external AC to DC adapter

CAUTION:

Probe Head

Probe Tip

Control Module

Connector box

Standard Parts

DL-ISO Probe

The
high-performance electrical amplifier. It is connected to the control module by an integrated fiber­optic cable. The
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.

User Manual

contains a frequency modulating optical transmitter and receiver integrated with a

utilizes the ProBus interface to communicate tip attenuation value

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
Connect to standard AC power outlets.

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.

7

that is connected to the control module.

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DL-ISO High Voltage Optically Isolated Probes

2 Vpp MMCX Tip

DL-ISO-2V-TIP

1

10 Vpp MMCX Tip

DL-ISO-10V-TIP

1

200 Vpp MMCX Tip

DL-ISO-200V-TIP

1

1 kVpp HV Square Pin Tip

DL-ISO-1000V-TIP

1

2.5 kVpp HV Square Pin Tip

DL-ISO-2500V-TIP

1

Note:

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.

All probe tips are high-quality coaxial attenuating tips that reject unwanted noise.

Probe tip measurement capability ranges from 2 Vpp to 2500 Vpp. The interface is MMCX or
square pins depending on how large the voltage to be measured is.

MMCX Tip

MMCX tips connect directly to an MMCX connector on customer’s circuit board. HV square-pin tips
connect to differential +ve and -ve signals on circuits. On the tip, you will see a red + and a white ­indicating which side connects to signal and which to reference.

HV Square Pin Tip

Description Part Number Quantity

40 Vpp MMCX Tip DL-ISO-40V-TIP 1

Each tip communicates identifying information to the probe. The tip rating determines the peak-to­peak voltage level that can be measured.

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.

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Optional Tip Accessories

DL-ISO-ACC-KIT

Item

Description

QTY

MMCX to Square-pin Adapter

This adapter can be used to connect 2 V to 200 V MMCX tips to

0.06 mm x 0.06 mm with a pitch of 0.1” between pins.

1

2" MMCX to Y-lead Socket

Intended for 2 V to 200 V MMCX tips, the Y-lead sockets can be
used to probe differential signals that are far apart on the board.

1

soldered directly to the test points for a secure probe connection.

Intended for 1000/2500 V tips, the sockets help extend the
connection to the DUT.

2

3" Solder-in

Intended for 1000/2500 V tips, the solder-ins help extend the
connection to the DUT.

2

Grabbers

Can be used to connect directly to IC legs or pins on a PCB. The 2”
sockets will plug into the Grabbers.

2

All tip accessories shown below are sold as a kit, part number

User Manual

.

DL-ISO probe tip accessories

square-pin headers. Mating pins must measure 25 mil/0.025” or

3" MMCX to Y- lead Solder-in

Intended for 2 V to 200 V MMCX tips, the Y-lead solder-ins can be

1

2" Socket

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DL-ISO High Voltage Optically Isolated Probes

DL03-ISO

DL07-ISO

DL10-ISO

Bandwidth

350 MHz

700 MHz

1 GHz

Risetime

Input Dynamic Voltage Range

DL-ISO-2500V-TIP

2500 Vpp

Common Mode Voltage Range

+/- 60 kV (DC + peak AC)

Max

Maximum Operating Voltage (DC+Peak AC)

DL-ISO-2500V-TIP

2500 V

Maximum Non-destruct Voltage (DC+Peak AC)

DL-ISO-2500V-TIP

3300 V

Sensitivity

25 V/div to 320 V/div

DC Gain Accuracy (probe + oscilloscope)

DC Gain Drift

<1% / °C

Offset

±2500 V

DL-ISO Probe Specifications

For complete specifications, see the product datasheet. Specifications are subject to change
without notice.

Electrical Characteristics

(10-90%) 1.1 ns 575 ps 435 ps

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP

imum Input Voltage to Earth +/- 60 kV (DC + peak AC)

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP
DL-ISO-2500V-TIP

1.5% after Precision Gain Calibration

20 mV/div to 250 mV/div

100 mV/div to 1.3 V/div

2 Vpp
10 Vpp
40 Vpp

200 Vpp

1000 Vpp

26 V

55 V
170 V
250 V

1000 V

50 V
100 V
250 V
300 V

1250 V

400 mV/div to 5 V/div

2 V/div to 25 V/div

10 V/div to 125 V/div

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP
DL-ISO-2500V-TIP

±25 V
±50 V

±150 V
±150 V

±1000 V

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Input Impedance

15 MΩ || 2.1 pF

Output Termination

50 Ω

Input/Output Coupling

Interface

ProBus

DL03-ISO

DL07-ISO

DL10-ISO

Noise (typical)

2.9 Vrms

3.8 Vrms

4.3 Vrms

Electrostatic Discharge (ESD) Immunity

8 kV contact discharge, 10 kV air discharge

per IEC61000-4-2, criteria A

Radiated RF

when operating in standard configuration*

Immunity to Conducted Disturbance

Induced by RF Fields

Probe Tip and Probe Head

when operating in standard configuration*

DL-ISO-2V-TIP
DL-ISO-10V-TIP
DL-ISO-40V-TIP
DL-ISO-200V-TIP
DL-ISO-1000V-TIP
DL-ISO-2500V-TIP

DC only

Noise and Electromagnetic Compatibility (EMC)

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)
DL-ISO-1000V-TIP (50 V/div)
DL-ISO-2500V-TIP (125 V/div)

Electromagnetic Field Immunity Probe Tip and Probe Head

2.3 mVrms

11.5 mVrms

46.0 mVrms

230.0 mVrms

1.2 Vrms

200 kΩ || 3.6 pF
1 MΩ || 2.1 pF
1 MΩ || 2.1 pF

7.5 MΩ || 2.0 pF
8 MΩ || 1.5 pF

3.0 mVrms

15.0 mVrms

60.0 mVrms

300.0 mVrms

1.5 Vrms

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

3.4 mVrms

17.0 mVrms

68.0 mVrms

340.0 mVrms

1.7 Vrms

* 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.

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

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DL-ISO High Voltage Optically Isolated Probes

Probe Head

Width 58 mm
Length
Height 32 mm

Fiber-optic Cable Length
(tip to oscilloscope input)

3.375 m (11 ft.)

Control Module

Width 106.1 mm
Length
Height

WARNING:

to be used only for measurements on circuits not directly

connected to the mains.

not rated for CAT II, III or IV

measurements.

WARNING:

lower

Do not exceed the CAT, voltage or current rating of the lowest rated

individual component.

WARNING: The probe is not intended for hand-held use.

Part

Input Dynamic Range

Max. Operating
Voltage* (DC+Peak AC)

Max. Non-destruct
Voltage* (DC+Peak AC)

DL-ISO-ACC-KIT

MMCX to Square-pin Adapter

Tip dependent

2" MMCX to Y-lead Socket

Tip dependent

3" MMCX to Y- lead Solder-in

Tip dependent

2" Socket

Tip dependent

3" Solder-in

Tip dependent

Grabbers

Tip dependent

Dimensions

220.7 mm (not including strain relief)

229.8 mm (not including strain relief)

57.8 mm

Tip-Accessory Derating

Tips are derated according to the following table when used with the accessory listed.

Tips and accessories are classified No Rated Measurement Category per
IEC/EN 61010-2-030:2021 definitions. No Rated Measurement Category applies to circuits
not directly connected to the mains supply. The measurement terminals of the probe as
well as all accessories are

The probe and accessories are

accessory used.

between floating probe components and earth ground when measuring high voltages in a
stationary test setup.

The Measurement Category and voltage rating is the

Always maintain adequate spacing

250 V 300 V

2,500 V 3,300 V

* Accessories derate the same as the tip used. Refer to the Non-destruct Input Voltage (tip derating) graph.

12

of the probe tip or

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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:

User Manual

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DL-ISO High Voltage Optically Isolated Probes

Input Impedance vs. Frequency

14

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Max. Non-destruct Voltage (tip derating)

Max. Operating Voltage (tip derating)

User Manual

15

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DL-ISO High Voltage Optically Isolated Probes

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

DL-ISO-1000V-TIP

125 dB

85 dB

30 dB

35 dB

25 dB

20 dB

DL-ISO-2500V-TIP

115 dB

80 dB

25 dB

30 dB

25 dB

15 dB

Common Mode Rejection Ratio (CMRR)

CMRR varies by tip and measurement frequency. The table below shows typical values.

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.

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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

DL-ISO-1000V-TIP

1.5 pF

0.5 pF

0.15 pF

8.0 MΩ

5.4 kΩ

DL-ISO-2500V-TIP

1.9 pF

0.5 pF

0.15 pF

15.0 MΩ

5.7 kΩ

User Manual

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Note:

DL-ISO High Voltage Optically Isolated Probes

Operation

Operating the probe requires MAUI firmware version 10.1.x.x or higher. To confirm the

version, choose Utilities > Utilities Setup from the oscilloscope menu bar, then open the Status tab.

Connecting the Probe to the Test Instrument

Connect the probe to the oscilloscope through the ProBus input.

Connect the AC-to-DC adapter to the DC inlet on the probe control module, then connect to AC
power. The colored LED will turn green, indicating functional status.

For optimal accuracy, allow the system to warm up powered on for at least 20 minutes, then
Perform a Precision Gain Calibration prior to taking measurements (see p.21).

Attaching and Removing Tips

Insert the desired tip into the connector on the probe head. Be sure the
arrows on both connectors are aligned.

To remove tips from the probe head, gently pull back on the LEMO plug to
unlock it before pulling the tip from the probe. Do not squeeze the LEMO
plug when removing the tip.

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Connecting Tips to the Test Circuit

WARNING

DO NOT touch the probe head, tip

or tip cable while connected to a live circuit.

Note:

De-energize the circuit under test before connecting tips.

: The DL-ISO uses fiber-optic isolation to permit the probe to float above ground

without damaging the oscilloscope or harming the operator.

serious harm will result if you touch these components while they are floating.

Seat MMCX tips directly into MMCX connectors.

To connect MMCX tips to square-pin headers, attach the MMCX to square­pin adapter to the tip before pressing it onto the pins.

The adapter connects to square-pin headers with mating pins
measuring 25 mil/0.025” or 0.635 mm x 0.635 mm and a pitch of 0.1”
between pins. The order of the three pins in the adapter is Reference­Signal-Reference. Connect the Reference pin to the lower impedance node
of the circuit.

User Manual

The probe is not rated for hand-held use and

HV square-pin tips connect to differential +ve and -ve signals on circuits.
On the tip, you will see a red + and a white - indicating which side connects

19

to signal and which to reference.

The pitch between pins is 0.2” (5.08 mm). The mating pins should be

0.025” x 0.025” (0.635 mm x 0.635 mm). Alternately, round pins could be
used whose diameter varies from 0.026” to 0.033” (0.66 mm to 0.84 mm).

Most tip accessories have a red and a black interface. Red connects to
signal and black connects to reference.

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DL-ISO High Voltage Optically Isolated Probes

Precision Gain Calibration

Auto Zero

External Power On/Off

Operating with an Oscilloscope

When the entire DL-ISO, including the attenuating tip, is connected to a Teledyne LeCroy
oscilloscope, the displayed scale factor and measurement values are adjusted to account for the
effective gain of the probe. The oscilloscope will set the proper probe attenuation according to the
information received from the tip, while the oscilloscope probe control functions are activated, and
probe gain and offset can be controlled through the oscilloscope.

The CnDL-ISO dialog appears behind the Cn dialog of the probe input channel. The probe’s tip
model, serial number, bandwidth and input voltage range are all shown on the DL-ISO probe dialog.

The probe dialog can be used to:

• Initiate a

• Turn

• Update probe firmware, when required

without having to physically disconnect the probe

or

DL-ISO probe dialog.

procedure

Probe Volts/Div and Attenuation

The oscilloscope’s scale factor is controlled through the front panel Volts/Div knob or input channel
dialog (Cn). When the probe is connected, the oscilloscope voltage per division settings will be
limited to a minimum sensitivity setting based on the attached tip.

Offset

Offset allows you to remove a DC bias voltage from the input signal while maintaining DC coupling.
This ensures that the probe will never be overdriven while a signal is displayed on screen and
prevents inaccurate measurements.

Offset can also be used to adjust the input voltage range that can be measured. For example, the
40 Vpp tip measures -20 V to +20 V with 0 V offset. If the offset is changed to +10 V, the range of
signal that can be measured now changes to -10 to +30 V. This is especially useful when
measuring gate drives with asymmetrical voltage ranges or viewing the full swing of Vds voltages.
When offset is changed, the Attributes section of the probe dialog provides real-time guidance on
what Input Voltage Range is valid (based on the offset setting and probe tip that is connected).

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Auto Zero

Precision Gain Calibration

Auto Zero

The Auto Zero procedure corrects for DC offset drifts that naturally occur from thermal effects in
the probe system. DC offset drift is independent of probe tip connected, but it is affected by
oscilloscope gain setting and ambient temperature.

DL-ISO Full Scale Range (FSR) is calculated as:

8 x Vertical Gain Sensitivity

For example, at 100 mV/div, FSR = 100 mV/div x 8 = 800 mV.

DL-ISO DC Offset Drift is calculated as:

DC Offset Drift ≤ [0.05% x FSR x temperature change]

For example, if there is a 10 °C change at 100 mV/div, the DC Offset Drift will be:

[(0.05/100) x 800 mV x 10] = 4 mV

To perform an Auto Zero:

1. De-energize the circuit under test (the probe may remain physically connected).

2. Warm up the system (oscilloscope and probe) until the “warming up” indicator on the

probe dialog disappears:

3. Touch the

button on the DL-ISO dialog.

Precision Gain Calibration

Precision Gain Calibration should be performed prior to each use to ensure that gain accuracy for
the current measurement configuration meets the specifications. Depending on the accuracy
desired and/or change in ambient temperature, it may be necessary to calibrate more often.
Precision Gain Calibration includes an Auto Zero procedure.

To perform a Precision Gain Calibration:

1. De-energize the circuit under test (the probe may remain physically connected).

2. Warm up the system (oscilloscope and probe) until the “warming up” indicator on the

probe dialog disappears.

3. Touch the

Each calibration is valid for the temperature (±5 ºC) at which it was performed. The temperature is
polled to determine whether the probe is still in the valid temperature range.

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button on the probe dialog.

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DL-ISO High Voltage Optically Isolated Probes

Update Firmware

Note:

no

The probe dialog will indicate when the probe has a valid calibration (green “√ Pass”):

Calibrations are not cached. If the probe was previously calibrated at one temperature then re­calibrated at another before returning to the first temperature, the Precision Gain Calibration will
have to be repeated. The probe dialog will show that a calibration is needed by placing a red “X Fail”
next to the Precision Gain Calibration button.

If the probe is disconnected then re-connected, repeat Precision Gain Calibration.

Probe Firmware Update

If an
for proper functioning. With the probe connected to any channel of the oscilloscope, touch the
button to begin the update. The probe will appear to temporarily disconnect (there will be no
DLxx-ISO dialog), and the oscilloscope message bar will say “Updating Firmware”. The update
takes approximately two minutes. When the update is complete, the probe will automatically
reconnect and be usable.

This procedure does not update the oscilloscope firmware, only the probe firmware. The
probe must be connected to the oscilloscope throughout this process. Additionally, the DC power
supply must remain plugged in, and

button appears on the probe dialog, the probe firmware requires an update

connection should be removed during update.

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Description

Minimum Requirements

Example Equipment

DC: 0.1% accuracy
AC: 0.1% accuracy

High Voltage Amplifier (needed for 200,
1000 and 2500 V tips)

Output amplitude of at least 300 Vpp
(106.06 Vrms)

TEGAM 2340 or similar

Performance Verification

DL-ISO probes shipped from Teledyne LeCroy are tested and adjusted to meet the Gain Accuracy
specification. This procedure can be used to verify the performance of an DL-ISO.

Some of the test equipment used to verify the performance may have environmental limitations
required to meet the accuracy needed for the procedure. Make sure that the ambient conditions
meet the requirements of all the test instruments used in the procedure.

Required Test Equipment

The following equipment (or its equivalent) is required for performance verification of the DL-ISO
probe. As input/output connector types vary on different brands of instruments, additional
adapters or cables may be required.

Oscilloscope

Digital Multimeter (DMM)

Function Generator

BNC Coaxial Cable (2) Male to Male, 50Ω, 36"

Banana Plug Adapter Female BNC to Dual Banana Plug Pomona 1269

BNC to SMA Adapter BNC (f) to SMA (f)

BNC to SMA Adapter BNC (f) to SMA (m) Pomona 4290

Probe Calibration Fixture SMA to square pin adapter Teledyne LeCroy PCF200

MMCX to 0.1” Square Pin Adapter
2” MMCX to Y-lead Socket
3” MMCX to Y-lead Solder-in
2” Socket
3” Solder-in
Grabbers

ProBus interface equipped
12-bit resolution

5.5 digit resolution

Sine Wave output amplitude adjustable
to 6.0 Vpp (2.12 Vrms) into 50Ω at
60 Hz

DL-ISO-ACC-KIT

Teledyne LeCroy HDO4000, HDO6000,
WaveRunner 8000HD

Keysight Technologies 34401A
Fluke 8842A-09

Teledyne LeCroy WaveStation 3082
Keysight Technologies 33120A
Stanford Research Model DS340

Teledyne Test Tools T3AFG120

Pomona 2249-C-36
Pomona 5697-36

Pomona 4291
Amphenol RF 242123

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File > Recall Setup

Recall Default

Auto Zero

Before You Begin

1. Turn on the oscilloscope and allow it to warm up for at least 20 minutes.

2. Connect the probe connector box to the oscilloscope C1 input. Verify that the C1DL-ISO

tab appears behind the C1 setup dialog. This confirms that the probe is sensed.

3. Fully assemble the probe—tip connected to probe head and control module connected to

power—and allow it to warm up for 20 minutes. The LED on the control module should turn
green.

4. Meanwhile, turn on the other test equipment (i.e., DMM and function generator) and allow

these to warm up for the time recommended by the manufacturer.

5. Make a photocopy of the Test Record (page 28) and fill in the necessary data.

Functional Check

The functional check will verify the basic operation of the probe functions. It is recommended to
perform the functional check prior to any other test procedures.

1. Return to the oscilloscope to the factory default settings:
a. Select
b. Touch the

2. If the update firmware button is present, update the firmware

3. Open the C1DL-ISO dialog and touch

4. Confirm that the message "Performing AutoZero on DL-ISO...." is displayed in the message

bar and that no error messages are displayed.

RMS Noise Check

The sensitivity range and RMS noise is dependent on which lead you have available. RMS Noise
check can be performed for any or all the leads shown below and verify the test result meets the
test limit in the Test Record page.

1. Set C1 Vertical Scale to:
a. DL-ISO-2V-TIP: 100 mV/div

b. DL-ISO-10V-TIP: 500 mV/div
c. DL-ISO-40V-TIP: 2 V/div
d. DL-ISO-200V-TIP: 10 V/div
e. DL-ISO-1000V-TIP: 50 V/div
f. DL-ISO-2500V-TIP: 100V/div

from the menu bar.

button

, then OK.

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2. Touch Precision Gain Calibration on the C1DL-ISO dialog. Wait while calibration completes.

NOTE:

3. Turn on P1 and set it to measure the standard deviation (sdev) of C1. Turn on statistics.

4. Clear Sweeps, wait 10 seconds, then record the mean value shown for measurement

P1:sdev(C1) on the test record and compare it to the test limit for the corresponding tip
voltage and DL-ISO model number.

Gain Accuracy Check

1. Using a BNC-to-BNC coaxial cable and BNC (f) to SMA (m) adapter, connect the function

generator to the PCF200.

For 200 V, 1000 V and 2500 V tips, connect the output of the function generator to
the input of the amplifier with a BNC to BNC cable. Connect the output of the amplifier to
the PCF200 with a BNC cable and BNC (f) to SMA (m) adaptor.

2. Using a banana plug adapter, BNC-to-BNC coaxial cable and BNC (f) to SMA (f) adapter,

connect the DMM to the PCF200.

3. Touch Precision Gain Calibration on the C1DL-ISO dialog. Wait while calibration completes.

4. Connect the probe tip to the PCF200:
a. For 2 V, 10 V, 40 V and 200 V MMCX tips:

User Manual

i. Connect the MMCX-to-square-pin adapter to the probe tip.

ii. Connect the probe tip to the square pin header on the PCF200.

b. For 1000 V and 2500 V square-pin tips:

i. Connect Red pin to socket adaptor to (+) terminal of the tip and black pin

to socket adaptor to the (-) terminal of the tip.

ii. Connect sockets to the square pin header on the PCF200, Red lead should

connect to the transmission line and black lead should connect to ground.

The test setup should look like the images below.

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Set up for 2 V, 10 V, 40 V tips

Set up for 200 V, 1 kV, 2.5 kV tips

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NOTE:

5. Set the DMM to measure V

AC

.

6. Set the oscilloscope timebase to 10 ms/div.

7. Set the function generator output to 1 MΩ termination, and the output waveform to a sine

wave with a frequency of 60 Hz.

8. Set both the function generator amplitude and oscilloscope C1 vertical scale as follows:

For 2 V, 10 V and 40 V tips, set the function generator load to 1MΩ. For 200 V,

1000 V and 2500 V tips, set the function generator load to 50Ω.

a. DL-ISO-2V-TIP: 600 mV
b. DL-ISO-10V-TIP: 3 V
c. DL-ISO-40V-TIP: 6 V

PK-PK

PK-PK

d. DL-ISO-200V-TIP: 600 mV
e. DL-ISO-1000V-TIP: 2.4 V
f. DL-ISO-2500V-TIP: 6 V

and 100 mV/div

PK-PK

.and 500 mV/div
.and 1 V/div

.(30 V

PK- PK

.(120 V

PK- PK

PK- PK

.(300 V

PK- PK

PK- PK

at output of amplifier ) and 5 V/div

PK- PK

at output of amplifier ) and 20 V/div

at output of amplifier ) and 50 V/div

9. Turn on measurement P1 and set it to measure the standard deviation (sdev) of C1.

10. Record the P1:sdev(C1) measurement value on the test record.

11. Record the VAC measurement of the DMM on the test record.

12. Calculate the gain accuracy (%) using the equation:

      



  

 100

13. Compare calculated gain accuracy to the limit on the test record.

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Probe Model and Serial Number:

_________

Tip Model and Serial Number:

_________

Asset/Tracking Number:

_________

Date:

_________

Technician:

_________

Equipment

Model

Serial Number

Calibration Due Date

Digital Multimeter

Oscilloscope

Function Generator*

N/A

Step

Description

Test Limit (mVrms)

Test Result

Probe Model Number

DL03-ISO

DL07-ISO

DL10-ISO

4 Mean sdev(C1) – DL-ISO-2V-TIP

4.6 6 6.8 4

Mean sdev(C1) – DL-ISO-10V-TIP

23

30

34 4

Mean sdev(C1) – DL-ISO-40V-TIP

92

120

136 4

Mean sdev(C1) – DL-ISO-200V-TIP

460

600

680 4

Mean sdev(C1) – DL-ISO-1000V-TIP

2300

3000

3400

5 Mean sdev(C1) – DL-ISO-2500V-TIP

5750

7500

8500

Step

Description

Intermediate Data

Test Result

11

DL-ISO Measured Voltage

VAC

12

DMM Measured Voltage

VAC

13

Gain Error (< ± 2.5%)

%

DL-ISO Performance Verification Test Record

____________________________________

____________________________________

____________________________________

____________________________________

____________________________________

* The function generator is used for making relative measurements. The output of the generator is measured with a DMM or
oscilloscope. Thus, the generator is not required to be calibrated.

RMS Noise

Gain Accuracy

Permission is granted to photocopy this page to record the results of the Performance Verification procedure. File the
completed record as required by applicable internal quality procedures.

Results recorded under "Test Result" are the actual specification limit check. The test limits are included in each step.
Record other measurements and intermediate calculations that support the limit check under "Intermediate Data".

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CAUTION:

CAUTION:

Care and Maintenance

Checking Probe Cable

Before each use, check the fiber-optic cable for tears in the soft outer sleeve. If the corrugated
sleeve beneath is visible at any point, stop using the probe and secure it from inadvertent use.

Cleaning the Probe Body

Clean only the exterior surfaces of the device using a soft cloth or swab dampened with water or
75% isopropyl alcohol solution. Do not use harsh chemicals or abrasive cleansers. Dry the probe
and accessories thoroughly before making any voltage measurements.

The DL-ISO probe is not waterproof. Under no circumstances submerge the

probe in liquid or allow moisture to penetrate it.

Calibration Interval

The recommended calibration interval is one year. A performance verification procedure is included
in this manual. The complete performance verification should be performed as the first step of
annual calibration.

Service Strategy

The DL-ISO probe utilizes fine-pitch surface mount devices. Defective probes must be returned to a
Teledyne LeCroy service facility for diagnosis and exchange.

Refer all servicing to qualified personnel. A defective probe under warranty will

be replaced with a factory refurbished probe.

Probes not under warranty can be exchanged for a factory refurbished probe for a modest fee.
Replacement probes are factory repaired, inspected, and calibrated to the same standards as a
new product. You must return the defective probe in order to receive credit for the probe core.

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DL-ISO High Voltage Optically Isolated Probes

If returning a probe to a different country:

Reference

Returning a Product for Service

Contact your local Teledyne LeCroy service center for calibration or other service. If the product
cannot be serviced on location, the service center will give you a Return Material Authorization
(RMA) code and instruct you where to ship the product. All products returned to the factory must
have an RMA.

Return shipments must be prepaid. Teledyne LeCroy cannot accept COD or Collect shipments. We
recommend air freighting. Insure the item you’re returning for at least the replacement cost.

1. Remove all accessories from the probe.

2. Pack the probe in its case. If possible, include all tips. Do not include the manual.

3. Pack the case in its original shipping box, or an equivalent carton with adequate padding to

avoid damage in transit.

4. Mark the outside of the box with the shipping address given to you by Teledyne LeCroy. Be

sure to add the following:

ATTN:<RMA code assigned by Teledyne LeCroy>
FRAGILE

5.

completing your import/export documents.

Extended warranty, calibration and upgrade plans are available for purchase. Contact your
Teledyne LeCroy sales representative to purchase a service plan.

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contact Teledyne LeCroy Service for instructions on

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Warranty

THE WARRANTY BELOW REPLACES ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS,
OR ADEQUACY FOR ANY PARTICULAR PURPOSE OR USE. TELEDYNE LECROY SHALL NOT BE
LIABLE FOR ANY SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WHETHER IN
CONTRACT OR OTHERWISE. THE CUSTOMER IS 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 TRANSPORT
PREPAID.

The product is warranted for normal use and operation, within specifications, for a period of one
year from shipment. Teledyne LeCroy will either repair or, at our option, replace any product
returned to one of our authorized service centers within this period. However, in order to do this we
must first examine the product and find that it is defective due to workmanship or materials and
not due to misuse, neglect, accident, or abnormal conditions or operation.

Teledyne LeCroy shall not be responsible for any defect, damage, or failure caused by any of the
following: a) attempted repairs or installations by personnel other than Teledyne LeCroy
representatives, or b) improper connection to incompatible equipment, or c) for any damage or
malfunction caused by the use of non-Teledyne LeCroy supplies. Furthermore, Teledyne LeCroy
shall not be obligated to service a product that has been modified or integrated where the
modification or integration increases the task duration or difficulty of servicing the oscilloscope.
Spare and replacement parts, and repairs, all have a 90-day warranty.

Products not made by Teledyne LeCroy are covered solely by the warranty of the original
equipment manufacturer.

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DL-ISO High Voltage Optically Isolated Probes

Certifications

DL-ISO probes conform to the following standards:

IEC/EN 61010-1:2010/A1:2019 - Safety Requirements for Electrical Equipment for Measurement,
Control and Laboratory Use, Part 1: General Requirements

IEC/EN 61010-2-30:2021 - Particular Requirements for Equipment Having Testing or Measuring
Circuits

IEC/EN 60825-1 - Safety of Laser Products, Part 1: Equipment Classification and Requirements ­Edition 3 (2014)

US 21CFR Part 1010 Performance Standards for Electronic Products: General

US 21CFR Part 1040 Performance Standards for Light-Emitting Products

For the full list of current certifications, see the EC Declaration of Conformity shipped with your
product.

The probe is marked with this symbol to indicate that it complies with the applicable
European Union requirements to Directives 2012/19/EU on Waste Electrical and
Electronic Equipment (WEEE).

For more information about proper disposal and recycling of your Teledyne LeCroy
product,

Unless otherwise specified, all materials and processes are compliant with RoHS Directive
2011/65/EU in its entirety, inclusive of any further amendments or modifications of said Directive.

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