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Related Manuals for Teledyne Lecroy HVFO103
Summary of Contents for Teledyne Lecroy HVFO103
- Page 1 Operator’s Manual HVFO103 High-Voltage Fiber Optically Isolated Probe...
- Page 3 HVFO103 High-Voltage Fiber Optically Isolated Probe Operator’s Manual January, 2019...
- Page 4 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.
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Page 5: Table Of Contents
Required Firmware Versions .................... 9 HVFO Probe System ..................... 10 HVFO103 .......................... 10 Attenuating Tips (one required) ..................11 Optional Accessories ...................... 11 HVFO103 Probe Specifications ..................12 Specifications ........................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 HVFO103 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
HVFO103 High-Voltage Fiber Optically Isolated Probe 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. -
Page 9: Safety Ratings For Accessories
Operator’s Manual 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) -
Page 10: Safe Operating Environment
HVFO103 High-Voltage Fiber Optically Isolated Probe Safe Operating Environment Temperature, Operating 0° C to 50° 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) 45% RH above 30 C... -
Page 11: Introduction
Operator’s Manual Introduction The HVFO103 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: Probe Design Compared To A Differential Probe
HVFO103 High-Voltage Fiber Optically Isolated Probe Probe Design Compared to a Differential Probe When properly used in its intended application, the HVFO103 will achieve much better results than a conventional, high-attenuation HV differential probe due to the dramatically different probe design. - Page 13 Operator’s Manual Since the probe is connected to ground, the common mode rejection ratio (CMRR, p.32) • of the differential amplifier in the probe must be very good or else signal noise and interference will not be rejected and will add to measurement noise. High enough CMRR is difficult and costly to accomplish, since it requires very precise matching of the + and –...
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Page 14: Effect Of Tip Design On Current Paths
HVFO103 High-Voltage Fiber Optically Isolated Probe It is unlikely that the HVFO103 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 15: Compatibility
Oscilloscopes (HDO) provide the most offset capability over the widest range of V/div settings (see p.21 for maximum offset calculations). Note: HVFO103 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
HVFO103 High-Voltage Fiber Optically Isolated Probe HVFO Probe System HVFO103 The parts shown below are delivered standard with the HVFO103 in a soft carrying case. The amplifier/modulating transmitter is a frequency modulating optical transmitter integrated with a high-performance electrical amplifier. The transmitter is battery-... -
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: Hvfo103 Probe Specifications
HVFO103 High-Voltage Fiber Optically Isolated Probe HVFO103 Probe Specifications For the current specifications, see the product datasheet at teledynelecroy.com. Specifications are subject to change without notice. Specifications Bandwidth (typical, probe+oscilloscope) 60 MHz Risetime 10-90% (typical) 7.5 ns DC Gain Accuracy (warranted) -
Page 19: Vertical Sensitivity
Operator’s Manual Vertical Sensitivity 1x tip 50 mV/div – 1 V/div 5x tip 250 mV/div – 5 V/div 10x tip 500 mV/div – 10 V/div 20x tip 1 V/div – 20 V/div 40x tip 2 V/div – 40 V/div Amplifier/Modulating Transmitter Battery Charging Interface USB Micro-B Typical Life... -
Page 20: Bandwidth
HVFO103 High-Voltage Fiber Optically Isolated Probe Bandwidth Typical bandwidth of the HVFO103 using any attenuating tip is shown below:... -
Page 21: Common Mode Rejection Ratio
The performance shown in the graph below is typical performance with the 1x tip connected to the HVFO103 and the black Reference and blue Signal leads twisted together. The Green line (LF Sweep) was measured with a low-bandwidth, high-voltage generator. -
Page 22: Input Impedance
HVFO103 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 Mohm // 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 HVFO103 is consuming battery power, the LED will flash on both the transmitter and the receiver/demodulator. -
Page 24: Connecting To The Test Circuit
HVFO103 High-Voltage Fiber Optically Isolated Probe Connecting to the Test Circuit WARNING: The HVFO103 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 HVFO103 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 HVFO103 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
HVFO103 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
DC Gain Accuracy specification. This procedure can be used to verify the warranted performance of an HVFO103, or to test and calibrate an HVFO103 system where a different transmitter or receiver has been introduced. -
Page 30: Functional Check
C1 setup dialog. This confirms that the probe is sensed. 2. Open the C1HVFO103 dialog and touch Auto Zero, then OK. 3. Confirm that the message "Performing AutoZero on HVFO103.." 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
HVFO103 High-Voltage Fiber Optically Isolated Probe Adjust Gain Accuracy If the HVFO103 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: Hvfo103 Performance Verification Test Record
Operator’s Manual HVFO103 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
Service Strategy The HVFO103 probe utilizes fine-pitch surface mount devices. Apart from replacing the battery, it is impractical to attempt repair in the field. Defective probes must be returned to a Teledyne LeCroy service facility for diagnosis and exchange. -
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
HVFO103 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 UBSTANCES The product and its accessories conform to the 2011/65/EU RoHS2 Directive.
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