Instruction Manual LeCroy CP031 Current Probe Revision C – February, 2008
Warranty LeCroy warrants this oscilloscope accessory for normal use and operation within specification for a period of one year from the date of shipment. Spare parts, replacement parts and repairs are warranted for 90 days. In exercising its warranty, LeCroy, at its option, will either repair or replace any assembly returned within its warranty period to the Customer Service Department or an authorized service center.
DECLARATION OF CONFORMITY according to ISO/IEC Guide 22 and EN 45014:1998 Manufacturer’s Name: Manufacturer’s Address: LeCroy Corporation 700 Chestnut Ridge Road Chestnut Ridge, NY 10977 USA herewith declare that Product(s) Name: Current Probe Model Number(s): CP030, CP031, CP150, CP500 including all their options are in conformity with the provisions of the following EC directive(s), including the latest amendments, and with national legislation implementing these directives: 73/23/EEC Low Voltage D
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Table of Contents Safety Information ........................................................................................... 1-1 Operator Safety ............................................................................................................ 1-1 Operating Environment ................................................................................................. 1-1 Safety Symbols .............................................................................................................
CP031 Current Probe Adjustment Procedure .................................................................................................. 6-2 Preliminary Procedure .................................................................................................. 6-2 Adjust DC Accuracy. ..................................................................................................... 6-2 Specifications ..................................................................................................
Safety Information Safety Information 1 OPERATOR SAFETY To avoid personal injury and to prevent damage to the probe or any products connected to it, review the following safety precautions.
CP031 Current Probe USAGE The probe is intended to be used only with instruments that are connected to earth ground through the input connector. The probe is not intended to be used in wet or explosive atmospheres. CAUTION The use of the probe and/or the instrument it is connected to in a manner other than that specified may impair the safety mechanisms. In order to assure safe operation and to obtain maximum performance from the unit, observe the following: WARNING 1.
Safety Information To guarantee accurate performance characteristics, mechanical shock should be avoided, as well as damage to the cable through excessive bending. The probe case is not sealed and should never be immersed in any fluid. Do not exceed the maximum specified current/voltage levels. (See Specifications).
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Overview Overview 2 DESCRIPTION The CP031 uses a combination of Hall effect and transformer technology which enables measurements to be made on DC, AC and impulse currents. It has a 100 MHz bandwidth and is designed to measure continuous currents up to 30 Amp. The probe can be used with a WaveSurfer, WaveRunner 6000, or WavePro 7000 series oscilloscope with firmware 4.3.0.0 or higher. With the ProBus interface, the CP031 becomes an integral part of the oscilloscope.
CP031 Current Probe The following symbols may appear on the product: CAUTION: Refer to accompanying documents This refers you to additional information contained in this manual. The corresponding information in the manual is similarly denoted. CAUTION: Risk of electric shockshock This is a reminder that high voltage may be present and that appropriate caution should be taken. This is the symbol for earth ground. ACCESSORIES Certificate of Calibration Instruction Manual.
Operation Operation 3 PRECAUTIONS Note The sensor head is a precision assembly consisting of a molded component with a ferrite core and a Hall effect element. It may be damaged if subjected to sudden changes in temperature, mechanical strain or shock. The mating surfaces of the sensor are precision ground and should be treated with care. If there is any type of dust or dirt on the mating surfaces of the sensor head, measurements may be impaired.
CP031 Current Probe 3. Close the slider on the sensor head until the "UNLOCK’ indication disappears and the "LOCK" indication appears. 4. Verify that the opening lever is firmly locked and the clamp is securely closed. Note Never use this probe on bare conductors. The core and shield are grounded and any voltage applied to the conductor may cause damage the probe or the circuit under test.
Operation Figure 3-1. Oscilloscope display with menu DEGAUSS PROBE If the probe has been magnetized by external magnetic field or by excessive input, the core can be demagnetized by touching the CP031 tab, then the DeGauss Probe button. The demagnetizing process takes about 5 seconds and should always be performed before taking a measurement. Without clamping the probe around a conductor, slide the opening lever to close and lock the probe and press the DEGAUSS PROBE button.
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Care and Maintenance Care and Maintenance 4 CLEANING The exterior of the probe and cable should be cleaned only using a soft cloth moistened with water or isopropyl alcohol. The use of abrasive agent, strong detergents or other solvents may damage the probe. CAUTION The probe case is not sealed and should never be immersed in any fluid. CALIBRATION INTERVAL The recommended calibration interval is one year. Adjustment should only be performed by qualified personnel.
CP031 Current Probe RETURNING A DEFECTIVE PROBE The procedure for returning a defective probe is as follows: Contact your local LeCroy sales representative to find out where to return the product. All returned products should be identified by model number and serial number. Provide your name and contact number and if possible describe the defect or failure. In case of products returned to the factory, a Return Authorization Number (RAN) should be used.
Care and Maintenance 7. Insure the item for the replacement cost of the probe. 8. Ship the package to the appropriate address. RETURNING A PROBE TO A DIFFERENT COUNTRY In order to avoid customs duty for purchase price of a new probe or accessory, when your probe is returned for service, please use the following procedure.
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Performance Verification Performance Verification 5 This procedure can be used to verify the warranted characteristics of the CP031 Current Probe. The recommended calibration interval for the model CP031 Current Probe is one year. The complete performance verification procedure should be performed as the first step of annual calibration. Test results can be recorded on a photocopy of the Test Record provided at the end of the manual.
CP031 Current Probe Description Minimum Requirements Test Equipment Examples Banana Plug Adapter Female BNC to Dual Banana Plug Pomona 1269 Patch Cables (4 required) Male Banana to Male Banana, 12" Pomona B-12-0 (black), B-12-2 (red) BNC Adapter BNC Male to Dual Banana Jack Pomona 1296 PRELIMINARY PROCEDURE 1. Connect the CP031 to the channel 1 input of the oscilloscope and completely close the probe slider. 2.
Performance Verification PERFORMANCE VERIFICATION PROCEDURE The warranted characteristics of the CP031 Current Probe are valid at any temperature within the Environmental Characteristics listed in the Specifications. However, some of the other 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 his procedure.
CP031 Current Probe 2. Remove the CP031 from the oscilloscope and reconnect using the ProBus extension cable. Connect the BNC male connector of the ProBus extension to DMM #1 using a BNC Female to Dual Banana adapter. 3. Using Banana Patch cords and the BNC to Dual Banana Plug adapter, connect the ’V Source’ and ’V Return’ terminals of the 100 Turn Calibration Loop to the output of the Function Generator. 4.
Adjustment Procedure Adjustment Procedure 6 This procedure can be used to adjust the warranted characteristics of the CP031 Current Probe. This procedure should be used if a parameter measured in the Performance Verification Procedure is outside of the specification limits. Adjustment should only be performed by qualified personnel. TEST EQUIPMENT REQUIRED The following table lists the test equipment and accessories, or their equivalents, which are required for adjustment of the CP031 Current Probe.
CP031 Current Probe ADJUSTMENT PROCEDURE The warranted characteristics of the CP031 Current Probe are valid at any temperature within the Environmental Characteristics listed in the Specifications. However, some of the other 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 this procedure.
Adjustment Procedure Figure 6-1. LF Accuracy Adjustment Set Up 4. Connect the Current Sense terminals of the 100 Turn Calibration Loop to the voltage inputs of DMM #2 5. Set both DMMs to measure AC Volt. 6. With the CP031 removed from any signal and the slider returned to the LOCKED position, degauss the probe by pressing the DEGAUSS button on the oscilloscope, (located in the CP031 dialog), then pressing OK. 7. Open the CP031 slider and position the probe input around the 100 Turn loop.
CP031 Current Probe 12. Re-assemble the compensation box by sliding the circuit board back into the box and inserting and fastening the two screws.
Specifications Specifications 7 NOMINAL CHARACTERISTICS Nominal characteristics describe parameters and attributes which are guaranteed by design, but do not have associated tolerances. Maximum Continuous Input Current 30 Amp rms Refer to figure 7-1,Maximum Input Current vs. Frequency. Maximum Peak Current 50 Amp peak, noncontinuous Insertion Impedance Refer to figure 7-2, Insertion Impedance vs.
CP031 Current Probe Output voltage 0.1 V/A * Lower sensitivity may change with different oscilloscope models. Sensitivity Temperature Coefficient ±2% or less. (from 0° to +40 °C, 32 °F to 104 °F). Noise Equivalent to 2.5 mA rms or less (Bandwidth of measuring instrument: 20 MHz). Bandwidth DC to 100 MHz. Rise Time ≤ 3.5 ns.
Specifications COMPLIANCES AND CERTIFICATIONS Meets intent of the European Council Directives 73/23/EEC for product safety and 89/336/EEC for electromagnetic compatibility. This declaratrion is based upon compliance of the CP031 to the following standards: EN 61326:1997 +A1:1998 +A2:2001 +A3:2003 EMC requirements for electrical equipment for measurement, control, and laboratory use.
CP031 Current Probe GRAPHS 36 34 32 30 28 26 24 22 20 Current 18 (Arms) 16 14 12 10 8 6 4 2 0 1.00E+02 1.00E+03 1.00E+04 1.00E+05 1.00E+06 1.00E+07 1.00E+08 Frequency (Hz) Figure 7-1. Maximum Input Current vs. Frequency 10 Input Impedance ( ( ) 1 0.1 0.01 0.001 1.00E+02 1.00E+03 1.00E+04 1.00E+05 1.00E+06 1.00E+07 1.00E+08 1.00E+09 Frequency (Hz) Figure 7-2. Insertion Impedance vs.
Appendix A Appendix A A PERFORMANCE VERIFICATION TEST RECORD This record can be used to record the results of measurements made during the performance verification of the CP031 Current Probe. Photocopy this page and record the results on the copy. File the completed record as required by applicable internal quality procedures. The section in the test record corresponds to the parameters tested in the performance verification procedure.
CP031 Current Probe CP031 TEST RECORD Step Description Test Result Gain Accuracy 10 Probe Output (Spec limit: 0.495 - 0.
