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Related Manuals for Teledyne Lecroy HVFO108
Summary of Contents for Teledyne Lecroy HVFO108
- Page 1 Operator’s Manual HVFO108 High-Voltage Fiber Optically Isolated Probe...
- Page 3 HVFO108 High-Voltage Fiber Optically Isolated Probe Operator’s Manual June, 2020...
- Page 4 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.
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Page 5: Table Of Contents
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 ........................ - Page 6 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 ..................
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Page 7: Safety
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. -
Page 8: High Voltage Precautions
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. -
Page 9: Safety Ratings For Accessories
Operator’s Manual 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. •... -
Page 10: Safe Operating Environment
HVFO108 High-Voltage Fiber Optically Isolated Probe 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... -
Page 11: Introduction
Operator’s Manual Introduction The HVFO108 High Voltage Fiber Optically-isolated probe is an affordable, optimally designed probe for measurement of small signals floating on an HV bus in power electronics designs, or for EMC, EFT, ESD, and RF immunity testing sensor monitoring. It far surpasses the... - Page 12 HVFO108 High-Voltage Fiber Optically Isolated Probe Probe Design Compared to a Differential Probe When properly used in its intended application, the HVFO108 will achieve much better results than a conventional, high-attenuation HV differential probe due to the dramatically different probe design.
- Page 13 • Switched energy is higher. • It is unlikely that the HVFO108 will show much improvement on a very low voltage DC bus (~20 V) floating signal unless the rise time is very fast. However, with typical 120/240 V supplied...
- Page 14 Shield wire will drive the reference voltage for the single-ended amplifier, including the effects of any parasitic capacitance. The HVFO108, by design, is not a differential probe, so the Signal and Reference wires are imbalanced in impedance. By using separate Reference (signal return) and Shield wires to carry currents, the probe segregates these currents to overcome any impact of impedance imbalance between the Signal and Reference wires.
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Page 15: Compatibility
In general, Teledyne LeCroy 12-bit High Definition Oscilloscopes (HDO) provide the most offset capability over the widest range of V/div settings. Note: HVFO108 is not compatible with WaveSurfer Xs oscilloscopes, which only run up to 32-bit XstreamDSO 7.2.0.5. Contact Service for available oscilloscope upgrades. -
Page 16: Hvfo Probe System
HVFO108 High-Voltage Fiber Optically Isolated Probe HVFO Probe System HVFO108 Probe The parts shown below are delivered standard with the HVFO108 in a soft carrying case. The amplifier/modulating transmitter is a frequency modulating optical transmitter integrated with a high- performance electrical amplifier. The... -
Page 17: Attenuating Tips (One Required)
Operator’s Manual Attenuating Tips (one required) Attenuating 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. Description Part Number Quantity 1x (+/-1 V) attenuating tip HVFO100-1X-TIP-U... -
Page 18: Hvfo108 Probe Specifications
HVFO108 High-Voltage Fiber Optically Isolated Probe HVFO108 Probe Specifications For the current specifications, see the product datasheet at teledynelecroy.com. Specifications are subject to change without notice. Performance Bandwidth (probe + oscilloscope) 150 MHz typical Risetime 10-90% 3.3 ns typical Gain Accuracy +/- 2.5% typical, 4% guaranteed... -
Page 19: Vertical Sensitivity
Operator’s Manual Vertical Sensitivity 1x tip 10 mV/div – 1 V/div 5x tip 50 mV/div – 5 V/div 10x tip 100 mV/div – 10 V/div 20x tip 200 mV/div – 20 V/div 40x tip 400 mV/div – 40 V/div Amplifier/Modulating Transmitter Battery Charging Interface USB Micro-B Typical Life... -
Page 20: Bandwidth
HVFO108 High-Voltage Fiber Optically Isolated Probe Bandwidth Typical bandwidth of the HVFO108 using the 5x, 10x, 20x and 40x tips, averaged: Frequency Response (typical) -0.5 -1.5 -2.5 -3.5 105 115 125 135 145 155 165 175 185 195 Frequency (MHz) -
Page 21: Common Mode Rejection Ratio
Common Mode Rejection Ratio The performance shown in the graph below is typical performance with the 1x tip connected to the HVFO108 and the black Reference and blue Signal leads twisted together. The (LF Sweep) was measured with a low-bandwidth, high-voltage generator. -
Page 22: Input Impedance
HVFO108 High-Voltage Fiber Optically Isolated Probe Input Impedance Typical input impedance for the tips is described in the plot below. Input impedance for the 40X tip is the same as for the 20X tip. Input impedance for the 10X tip is 8 MΩ // 23 pF. -
Page 23: Operation
CAUTION: As soon as the tip is connected, it will turn on the transmitter and begin to consume power from the built-in battery, so do not leave it connected unless the probe is in use. When the HVFO108 is consuming battery power, the LED will flash on both the transmitter and the receiver/demodulator. -
Page 24: Connecting To The Test Circuit
HVFO108 High-Voltage Fiber Optically Isolated Probe Connecting to the Test Circuit WARNING: The HVFO108 uses fiber-optic isolation to permit the transmitter to float above ground without damaging the oscilloscope or harming the operator. DO NOT touch the transmitter or leads while connected to a live circuit. These components are only rated 30... - Page 25 Operator’s Manual Optimizing Performance To maintain the probe's high performance capability, exercise care when connecting the probe. Increasing the parasitic capacitance or inductance in the input paths may introduce a “ring” or slow the rise time of fast signals. Don’t add length to the leads. Input leads that form a large loop area will pick up any radiated electromagnetic field that passes through the loop and may induce noise into the probe inputs.
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Page 26: Connecting To The Test Instrument
Note: The effective gain shown is simply the reciprocal of total attenuation. Total attenuation is a combination of the HVFO108 tip attenuation (1x, 5x, 20x, etc.) and the amplifier attenuation (a fixed value of 2x). Thus, a 1x attenuating tip will have a total attenuation of 2x and effective gain is ÷2, while a 20x tip will have a total attenuation of 40x and effective gain is ÷40. - Page 27 The HVFO probe incorporates Auto Zero capability to remove the DC offset from the probe's amplifier output to improve the measurement accuracy. Auto Zero is invoked manually from the HVFO108 dialog that appears when the probe is connected to the oscilloscope. Always perform Auto Zero after the probe is warmed up (recommended warm-up is 20 minutes).
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Page 28: Recharging The Amplifier/Modulating Transmitter
HVFO108 High-Voltage Fiber Optically Isolated Probe Recharging the Amplifier/Modulating Transmitter The battery is recharged through the same USB Micro-B interface that connects the tip during operation. This is to ensure safety of the operator and other equipment as it precludes charging while the probe is operating (and floating above ground). -
Page 29: Performance Verification
Gain Accuracy specification. This procedure can be used to verify the warranted performance of an HVFO108, or to test and calibrate an HVFO108 system where a different transmitter or receiver has been introduced. Test results can be recorded on a photocopy of the HVFO108 Test Record in this manual. -
Page 30: Functional Check
C1 setup dialog. This confirms that the probe is sensed. 2. Open the C1HVFO108 dialog and touch Auto Zero, then OK. 3. Confirm that the message "Performing AutoZero on HVFO108.." is displayed in the message bar, and that no error messages are displayed. -
Page 31: Performance Verification Test Setup
Operator’s Manual Performance Verification Test Setup Check Gain Accuracy 1. Connect the probe system and test equipment as shown in the diagram above. Use the C1 input for the probe. 2. Set the DMM to measure V 3. Set the function generator to output a square wave of 100 Hz amplitude of 1.0 V PK-PK 4. -
Page 32: Adjust Gain Accuracy
HVFO108 High-Voltage Fiber Optically Isolated Probe Adjust Gain Accuracy If the HVFO108 system does not meet the accuracy specification, the transmitter can be adjusted to more precisely match the characteristics of the specific demodulating receiver. 1. Keeping the equipment connected as in the ‘Check Gain Accuracy’ section, open the transmitter by removing the sticky rubber feet and screws that hold together the housing top and bottom. -
Page 33: Hvfo108 Performance Verification Test Record
Operator’s Manual HVFO108 Performance Verification Test Record Receiver Serial Number: _____________________________________________ Amplifier Serial Number: _____________________________________________ Asset/Tracking Number: _____________________________________________ Date: _____________________________________________ Technician: _____________________________________________ Equipment Model Serial Number Calibration Due Date Digital Multimeter Oscilloscope Function Generator * The function generator is used for making relative measurements. The output of the generator is measured with a DMM or oscilloscope. -
Page 34: Care And Maintenance
Sticklers Fiber Optic Cleaner or similar (https://sticklers.microcare.com/products/product/sticklers-fiber-optic-cleaner/). Replacing the Transmitter Battery The transmitter battery is not field replaceable. Return the probe to Teledyne LeCroy service if the battery malfunctions. See Appendix A: Battery Safety and Handling for indicators of failure. Calibration Interval The recommended calibration interval is one year. -
Page 35: Attenuating Tip Compensation
Operator’s Manual Attenuating Tip Compensation Tips are compensated at the factory and should not require compensation during normal use. However, there are cases where accuracy may be affected, such as after using a tip with a different amplifier than that with which it was initially calibrated. Follow these steps to compensate 5X, 10X, 20X and 40X attenuating tips. -
Page 36: Returning A Product For Service
4. Pack the product case in a cardboard shipping box with adequate padding to avoid damage in transit. 5. 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>... -
Page 37: Technical Support
Operator’s Manual Technical Support Live Support Registered users can contact their local Teledyne LeCroy service center at the number listed on our website. You can also request Technical Support via the website at: teledynelecroy.com/support/techhelp Resources Teledyne LeCroy publishes a free Technical Library on its website. Manuals, tutorials, application notes, white papers, and videos are available to help you get the most out of your Teledyne LeCroy products. -
Page 38: Reference
HVFO108 High-Voltage Fiber Optically Isolated Probe Reference Common Mode Rejection Ratio The ideal amplifier would sense and amplify only the desired voltage component and reject the entire common mode voltage (V ) component. Typically, this is best done with a differential amplifier, but real differential amplifiers are not perfect, and a small portion of the V component appears at the output. -
Page 39: Common Mode Range
Operator’s Manual Common Mode Range The Common Mode Range is the maximum voltage with respect to earth ground that can be applied to either input. Exceeding the common mode range (if the probe is so rated) can result in unpredictable measurements or damage to the probe, DUT, oscilloscope or operator. Safety standards are typically used to specify the maximum common mode voltage that the probe may be safely used at, with different ratings based on whether the probe is designed to be used to measure mains voltages (and if so, how close to low impedance utility supply the measurement... -
Page 40: Warranty
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, b) improper connection to incompatible equipment, or c) use of non-Teledyne LeCroy supplies. -
Page 41: Certifications
Operator’s Manual Certifications Teledyne LeCroy certifies compliance to the following standards as of the date of publication. For the current certifications, see the EC Declaration of Conformity shipped with your product. EMC Compliance EC D - EMC ECLARATION OF ONFORMITY The HVFO probe meets the intent of EC Directive 2014/30/EU for Electromagnetic Compatibility. - Page 42 The probe is subject to disposal and recycling regulations that vary by country and region. Many countries prohibit the disposal of waste electronic equipment in standard waste receptacles. For more information about proper disposal and recycling of your Teledyne LeCroy product, visit teledynelecroy.com/recycle. ESTRICTION OF AZARDOUS...
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Page 43: Appendix A: Battery Safety And Handling
Always follow the instructions below when using the probe. DANGER Using the HVFO108 probe other than according to the UL1642 safety requirements listed here may cause electrical bursts, fire, smoke or severe performance failure making it unsafe for use. - Page 44 HVFO108 High-Voltage Fiber Optically Isolated Probe (9) Charge the amplifier/battery only as specified. Charging it in an unspecified manner (e.g., under high temperature over the regulated value, excessive high voltage or current over the regulated value, or remodeled with the PCM failed or disassembled) may cause it to be overcharged or an abnormal chemical reaction to occur in the cells.
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- Page 48 932301-00 Rev A June, 2020...
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