Teledyne Lecroy HVFO108 User manual

Operator’s Manual
HVFO108
High
-Voltage
Fiber Optically Isolated Probe

HVFO108
High-Voltage Fiber Optically Isolated Probe
Operator’s Manual
June, 2020

HVFO108 High-Voltage Fiber Optically Isolated Probe Operator's Manual
© 2020 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.
Information contained herein is classified as EAR99 under the U.S. Export Administration
Regulations. Export, reexport or diversion contrary to U.S. law is prohibited.
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.
932301-00 Rev A
hvfo108-probe-om-eng_15jun20.pdf
June, 2020

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Contents
Safety.............................................................................................................................1
Symbols .............................................................................................................................1
General Precautions..........................................................................................................1
High Voltage Precautions.................................................................................................2
Battery Precautions ..........................................................................................................2
Safety Ratings for Accessories........................................................................................3
Safe Operating Environment ............................................................................................4
Introduction....................................................................................................................5
Key Features......................................................................................................................5
Method of Operation .........................................................................................................5
Compatibility......................................................................................................................9
Required Firmware Versions ............................................................................................9
HVFO Probe System .....................................................................................................10
HVFO108 Probe ...............................................................................................................10
Attenuating Tips (one required) .....................................................................................11
Optional Accessories ......................................................................................................11
HVFO108 Probe Specifications ....................................................................................12
Performance ....................................................................................................................12
Electrical Characteristics................................................................................................12
Vertical Sensitivity...........................................................................................................13
Amplifier/Modulating Transmitter Battery....................................................................13
Dimensions ......................................................................................................................13
Bandwidth ........................................................................................................................14
Common Mode Rejection Ratio .....................................................................................15
Input Impedance..............................................................................................................16
Operation .....................................................................................................................17
Assembling the Probe.....................................................................................................17
Connecting to the Test Circuit........................................................................................18
Connecting to the Test Instrument................................................................................20
Operating with an Oscilloscope .....................................................................................20
Recharging the Amplifier/Modulating Transmitter ......................................................22

HVFO108 High-Voltage Fiber Optically Isolated Probe
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Performance Verification..............................................................................................23
Required Test Equipment ...............................................................................................23
Functional Check.............................................................................................................24
Performance Verification Test Setup ............................................................................25
Check Gain Accuracy ......................................................................................................25
Adjust Gain Accuracy.....................................................................................................26
HVFO108 Performance Verification Test Record ..........................................................27
Care and Maintenance..................................................................................................28
Cleaning the Probe Body ................................................................................................28
Cleaning the Optical Ports..............................................................................................28
Cleaning the Fiber Optic Cable .......................................................................................28
Replacing the Transmitter Battery.................................................................................28
Calibration Interval ..........................................................................................................28
Service Strategy ..............................................................................................................28
Attenuating Tip Compensation ......................................................................................29
Returning a Product for Service.....................................................................................30
Technical Support ...........................................................................................................31
Reference.....................................................................................................................32
Common Mode Rejection Ratio .....................................................................................32
Common Mode Range ....................................................................................................33
Warranty...........................................................................................................................34
Certifications ...................................................................................................................35
Appendix A: Battery Safety and Handling .....................................................................37

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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.
General Precautions
To avoid personal injury or damage to your equipment:
Use only as specified. The probe is intended to be used only with compatible Teledyne LeCroy
instruments. Using the probe and/or the equipment it is connected to in a manner other than
specified may impair the protection mechanisms.
Do not overload; observe all ratings. Do not connect the probe to any circuit that exceeds the
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. Substituting other accessories than those specified in this manual may create an
electrical hazard.
Connect and disconnect properly. Connect the probe to the measurement instrument before
connecting to the circuit being measured. Avoid excessive bending that can damage cables.
Keep the probe body and output cable away from the circuits being measured. Only tips are
intended for contact with electrical sources.
Do not use the probe for measurements on Mains circuits. This probe does not have a CAT
rating for use on circuits in Measurement Categories II, III or IV.

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Except for gain accuracy adjustment, do not remove the probe's casing. Touching exposed
connections may result in electric shock.
Use only indoors and within the operational environment listed. Do not use in wet or explosive
atmospheres.
Keep product surfaces clean and dry.
Handle with care. Probe tips are sharp and may cause injury if not handled properly.
Do not disassemble the probe body or remove inside parts. There are no user replaceable parts.
Refer all service to qualified personnel.
Do not operate with suspected failures. Before each use, inspect the probe and accessories for
damage such as tears or other defects in the body, cable jacket, etc. If any part is damaged,
cease operation immediately and sequester the probe from inadvertent use.
High Voltage Precautions
To avoid injury or death due to electric shock or burn:
Do not handle probe tips, leads or any part of the amplifier/modulating transmitter at any time if
DC bus voltages are >60 V.The probe is not rated for hand-held use above 60 V. If there is any
question as to whether >60 V voltages are present in the circuit, use caution and DO NOT touch
these components.
Always ensure that, when not hand-held, the amplifier/modulating transmitter and attached tip
are positioned to maintain adequate spacing between these two components and earth ground.
Some of the probe components float at the common-mode voltage and some do not. The
spacing requirements depend on the common-mode voltage present in the test setup.
Battery Precautions
To avoid personal injury or property damage due to explosion or fire, follow all warnings
listed in Appendix A: Battery Safety and Handling. Most importantly:
•Do not disassemble or modify the probe or the internal battery. The Lithium polymer
battery contained in the probe body is not user replaceable. Return the probe to
Teledyne LeCroy Service if the battery needs to be serviced or replaced.
•Do not heat the probe, or use it near heat sources or in excessive heat.
•Do not expose the probe to static electricity or excessive voltage.
•Do not throw, hit or step on the probe or otherwise cause mechanical stress.
•Do not reverse-charge or otherwise reverse the battery polarity.

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•Do not use the probe with accessories other than those with which it is shipped.
•Do not use the probe other than as specified in this manual.
•Do not use the probe if it is damaged.
Safety Ratings for Accessories
Accessory
Part Number
CAT Rating*
Max. Input Voltage Probe &
Accessory (input to ground)
1x Attenuating Tip
HVFO100-1X-TIP-U
No Rated Measurement Category
+/-1 V (DC + Peak AC)
(5 V maximum non-destruct)
5x Attenuating Tip HVFO100-5X-TIP-U No Rated Measurement Category +/-5 V (DC + Peak AC)
(25 V maximum non-destruct)
10x Attenuating Tip
HVFO100-10X-TIP-U
No Rated Measurement Category
+/-10 V (DC + Peak AC)
(50 V maximum non-destruct)
20x Attenuating Tip
HVFO100-20X-TIP-U
No Rated Measurement Category
+/-20 V (DC + Peak AC)
(100 V maximum non-destruct)
40x Attenuating Tip HVFO100-40X-TIP-U No Rated Measurement Category +/-40 V (DC + Peak AC)
(100 V maximum non-destruct)
* Per IEC/EN 61010-031:2015 definitions, No Rated Measurement Category applies to other circuits that are not directly
connected to the mains supply.
WARNING: The probe and its accessories are not rated for measurements within
Measurement Categories II, III or IV.

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Safe Operating Environment
Temperature, Operating 10 °C to 40 °C
Temperature, Charging 0 °C to 40 °C
Temperature, Non-operating 20 °C to 70 °C
Relative Humidity, Operating 5% to 80% RH (non-condensing) up to 30 °C
decreasing linearly to 45% RH at 50 °C
Relative Humidity, Non-operating 5% to 95% RH (non-condensing)
80% 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 61010-031:2015.
The SAC-01 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.
.