Instruction Manual LeCroy CP150 Current Probe Revision D - 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 .............................................................................................................
CP150 Current Probe Preliminary Procedure .................................................................................................. 6-2 Adjust DC Accuracy. ..................................................................................................... 6-2 Specifications .................................................................................................. 7-1 Nominal Characteristics ................................................................................................
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.
CP150 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.
Overview Overview 2 DESCRIPTION The CP150 uses a combination of Hall effect and transformer technology which enables measurements to be made on AC, DC and impulse currents. It has a 10 MHz bandwidth and is designed to measure continuous peak currents up to 150 Amp. The probe can be used with a Waverunner®, LC, or WavePro® series oscilloscope with firmware 8.6.0 or higher. With the ProBus® interface, the CP150 becomes an integral part of the oscilloscope.
CP150 Current Probe 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.
CP150 Current Probe 4. Close the slider on the sensor head until the "UNLOCK’ indication disappears and the "LOCK" indication appears. 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 WITH A LECROY OSCILLOSCOPE Control through the oscilloscope user interface can be found in the Coupling menu of the channel to which the probe is connected.
Operation Probe Sensitivity Highlighted number indicates selected channel, oscilloscope input sensitivity and coupling Probe Attenuation 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 pressing the button next to DEGAUSS PROBE menu. The demagnetizing process takes about 1 second and should always be performed before taking a measurement.
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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.
CP150 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 CP150 Current Probe. The recommended calibration interval for the model CP150 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.
CP150 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 CP150 to the channel 1 input of the oscilloscope and completely close the probe slider. 2.
Performance Verification 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. Note The correct operation of the CP150 controls requires software version 8.6.0 or higher. The software version in the test oscilloscope can be verified by pushing SCOPE STATUS, then selecting the System menu option.
CP150 Current Probe 3. Using the banana patch cords and the BNC to Dual Banana Plug Adapter, connect the ’V Source’ and ’V Return’ terminals of the 50 Turn Calibration Loop to the output of the Function Generator. (Figure 5-1) 4. Connect the Current Sense terminals of the 500 Turn Calibration Loop to the voltage inputs of DMM #2. 5. Set both DMMs to measure AC Volt. 6.
Adjustment Procedure Adjustment Procedure 6 This procedure can be used to adjust the warranted characteristics of the CP150 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 CP150 Current Probe.
CP150 Current Probe ADJUSTMENT PROCEDURE The warranted characteristics of the CP150 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 DMM #1 Function Generator Oscilloscope DMM #2 500 Turn Current Loop Current Probe ProBus Extender Figure 6-1. LF Accuracy Adjustment Set Up 4. Connect the Current Sense terminals of the 500 Turn Calibration Loop to the voltage inputs of DMM #2 5. Set both DMMs to measure AC Volt. 6. With the CP150 removed from any signal and the slider returned to the LOCKED position, degauss the probe by pressing the DEGAUSS button on the oscilloscope, (located on the coupling menu), twice. 7.
CP150 Current Probe 12. Re-apply the light blue product label to the probe head using the double-sided tape.
Specifications Specifications 7 NOMINAL CHARACTERISTICS Nominal characteristics describe parameters and attributes that are guaranteed by design, but do not have associated tolerances. Maximum Continuous Input Current 150 Amp rms Refer to Figure 7-1, “Input Current vs. Frequency.” Maximum Non-Continuous Peak Current 300 Amp peak, 500 Amp at pulse width of < 30 µsec. Insertion Impedance Refer to Figure 7-2.
CP150 Current Probe Sensitivity Temperature ±2%or less. (from 0° to +40 °C, 32 °F to 104 °F). Noise Equivalent to 25 mA rms or less (Bandwidth of measuring instrument: 20 MHz). Bandwidth DC to 10 MHz Rise Time ≤ 35 ns ENVIRONMENTAL CHARACTERISTICS Temperature: Operating Storage 0 to 40 °C (32 °F to 104 °F) at 80% relative humidity -10 °C to 50 °C (14 °F to 122 °F) 80% relative humidity.
Specifications COMPLIANCES AND CERTIFICATIONS CE Declaration of Conformity The probe meets requirements of the EMC Directive 89/336/EEC for Electromagnetic Compatibility and Low Voltage Directive 73/23/EEC for Product Safety.
CP150 Current Probe GRAPHS Figure 7-1. Maximum Input Current vs. Frequency 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 CP150 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.
CP150 Current Probe CP150 TEST RECORD Step Description Test Result Gain Accuracy 10 Probe Output (Spec limit: 99 - 101 mV) _______________ V ### A-2 CP150-OM-E Rev C
