xx ZZZ P6022 Current Probe Instruction Manual *P070094805* 070-0948-05
xx ZZZ P6022 Current Probe Instruction Manual Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service. www.tektronix.
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specifications and price change privileges reserved. TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Warranty Tektronix warrants that the product will be free from defects in materials and workmanship for a period of one (1) year from the date of original purchase from an authorized Tektronix distributor. If the product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Batteries are excluded from this warranty.
Table of Contents General Safety Summary ......................................................................................... Service Safety Summary.......................................................................................... Compliance Information ......................................................................................... Safety Compliance........................................................................................... Environmental Considerations .................
Table of Contents List of Figures Figure 1: P6022 probe, termination, and ground lead .......................................................... Figure 2: Connecting the probe and termination to the oscilloscope ......................................... Figure 3: Insertion impedance of the probe ..................................................................... Figure 4: Probe and termination input current vs. frequency derating ......................................
Table of Contents List of Tables Table 1: Warranted electrical characteristics .................................................................... Table 2: Warranted environmental characteristics .............................................................. Table 3: Maximum ratings ....................................................................................... Table 4: Electrical characteristics................................................................................
General Safety Summary General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. To Avoid Fire or Personal Injury Connect and Disconnect Properly. Do not connect or disconnect probes or test leads while they are connected to a voltage source. Connect and Disconnect Properly.
General Safety Summary WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property. Symbols and Terms on the Product These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking.
Service Safety Summary Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present. Disconnect Power. To avoid electric shock, switch off the instrument power, then disconnect the power cord from the mains power.
Compliance Information This section lists the safety and environmental standards with which the instrument complies. Safety Compliance EC Declaration of Conformity – Low Voltage Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities: Low Voltage Directive 2006/95/EC. EN 61010-1: 2001. Safety requirements for electrical equipment for measurement control and laboratory use. EN 61010-2-032: 2002.
Compliance Information Pollution Degree 4. Pollution that generates persistent conductivity through conductive dust, rain, or snow. Typical outdoor locations. Pollution Degree viii Pollution Degree 2 (as defined in IEC 61010-1). Note: Rated for indoor use only.
Compliance Information Environmental Considerations This section provides information about the environmental impact of the product. Product End-of-Life Handling Observe the following guidelines when recycling an instrument or component: Equipment Recycling. Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if improperly handled at the product’s end of life.
Compliance Information x P6022 Instruction Manual
Operator Information This manual describes the P6022 current probe with passive termination, and provides information about making measurements with the probe. Description The P6022 current probe converts an alternating current waveform to a voltage that can be displayed and measured on an oscilloscope display. It provides accurate current measurements over a wide range of frequencies, and allows you to measure current without breaking the circuit.
Operator Information Installation This section describes both attaching the probe to an oscilloscope and using the standard accessories with the probe. To ensure the best performance from your probe/oscilloscope measurement system, check that the probe and oscilloscope are appropriately matched. The oscilloscope inputs should use BNC connectors, and have an impedance of 1 MΩ.
Operator Information Attaching the Probe and Termination to an Oscilloscope 1. Connect the termination box female BNC end to the P6022 probe output cable. 2. Connect the termination box male BNC end to a ground-referenced oscilloscope. WARNING. To avoid electric shock and possible injury, do not apply any voltage above earth ground potential to the probe common lead (do not float the common).
Operator Information Using the Standard Accessories Your P6022 probe is shipped with the following accessories: This instruction manual — Read these instructions to familiarize yourself with the features, specifications, and operation of the P6022 current probe. 6-inch ground lead — Use the 6-inch ground lead to ground the shield around the probe transformer at the probe end of the cable.
Operator Information Operating Considerations The information in this section will help you make the most effective use of your P6022 probe. Features and Controls Sensitivity Control — The P6022 termination has a control that allows you to select probe sensitivity. The switch has two positions: 1 mA/mV and 10 mA/mV. When the control is in the 1 mA/mV position, the oscilloscope displays 1 mV for every 1 mA of current in the circuit under test.
Operator Information To Use the Probe. WARNING. To reduce risk of electric shock, use only insulated conductors with these probes on circuits with voltages above 30 Vrms, 42 Vpk, or 60 VDC. These probes are not rated for bare wire voltages above 30 Vrms, 42 Vpk, or 60 VDC. CAUTION. To reduce risk of fire, do not connect or disconnect the current probe to or from a live, uninsulated conductor. The core is not insulated.
Operator Information Insertion Impedance When you insert a conductor into the probe, you add impedance to the circuit you are measuring. This additional impedance affects signals; this is particularly important if you are measuring fast rise times. The equivalent circuit with additional impedance introduced by the P6022 is shown below.
Operator Information Probe Shielding The P6022 probe is shielded to minimize the effect of external magnetic fields. However, strong fields can interfere with the current signal being measured. If you suspect that an external field is interfering with your measurement, remove the probe from the conductor, but keep it in the same location as when you made the suspect measurement.
Service Information Service Information Warranted Characteristics This section lists the various warranted characteristics that describe the P6022 Current Probe. Included are warranted electrical and environmental characteristics. Warranted characteristics are described in terms of quantifiable performance limits that are warranted.
Service Information Table 3: Maximum ratings Characteristic Information Maximum continuous (CW) current 1 mA/mV 10 mA/mV Refer to figure for frequency derating curves (See Figure 4.) 6 Ap-p sine wave between 10 kHz and 10 MHz 6 Ap-p sine wave between 3 kHz and 10 MHz Maximum pulse current 100 A peak, not to exceed 9(A · ms) or 2 ARMS.
Service Information Typical Characteristics This section lists the various typical characteristics that describe the P6022 Current Probe. Included are typical electrical and mechanical characteristics. Typical characteristics are described in terms of typical or average performance. Typical characteristics are not warranted. Table 4: Electrical characteristics Characteristic Information Tilt 1 mA/mV 10 mA/mV 4% or less within 1ms of step 4% or less within 10ms of step Maximum DC without saturation 0.
Service Information Circuit Description This section describes the circuits in the P6022 current probe and termination. Current Probe The P6022 current probe consists of a current transformer mounted in the nose of the probe head case, an impedance-matching network, and an internal switch to disconnect the transformer shield from ground. The transformer contains a two-section, U-shaped ferrite core.
Service Information Probe Performance WARNING. This probe should be serviced only by qualified service personnel. To avoid personal injury and damage to the probe, remove the probe from any signal source before attempting to adjust or service the probe. Do not service electrical equipment alone. If you must service or adjust equipment that is attached to a signal or power source, do so only when another person capable of rendering first aid and resuscitation is present.
Service Information Table 6: Equipment list Item Characteristic Description Recommended equipment Oscilloscope Bandwidth DC to ≥300 MHz TDS 303X, or TDS 305X Vertical sensitivity 1 mV/div Measurement functions Amplitude averaging Fast rise time Rise time ≤1 ns 1 VP-P into 50 Ω Wavetek 9100 with option 100:250 or Tektronix PG 506A Sinewave voltage 5 VP-P into 50 Ω (100 mA), 935 Hz to 120 MHz 1.
Service Information Performance Verification Check Midband Accuracy Refer to the illustration below when making equipment connections.
Service Information 1. Set the P6022 termination sensitivity to 1 mA/mV. 2. Connect the Leveled Sinewave Output of the calibration generator to a BNC "T". Connect one branch of the BNC "T" to the calibration fixture. Connect the other branch of the BNC "T" to the DMM input using a BNC-to-dual banana adapter. 3. Set the DMM to ACV (autorange). 4. Set the Leveled Sinewave Output of the calibration generator to 50 kHz and an amplitude of 5 Vpp. 5. Measure and record the DMM output as M1. 6.
Service Information Check Low Frequency Response Refer to the setup diagram when making equipment connections. (See Figure 5 on page 15.) 1. Connect the calibration fixture to the Leveled Sinewave Output of the calibration generator. 2. Connect the BNC-to-dual banana adapter to the input of the DMM. 3. Connect the P6022 termination and probe to the BNC-to-dual banana adapter that is connected to the DMM. 4. Set the P6022 termination sensitivity to 1 mA/mV. 5. Set the DMM to ACV (autorange). 6.
Service Information Table 7: P6022 low frequency bandwidth measurements Probe sensitivity Probe sensitivity 1 mA/mV 50 kHz M1 M2 M2/M1 M3 M4 M4/M3 8.5 kHz 10 mA/mV 50 kHz 935 Hz Check High Frequency Bandwidth Refer to the figure below when making equipment connections.
Service Information 1. Set the P6022 termination sensitivity to 1 mA/mV. 2. Connect the calibration fixture to the Leveled Sinewave Output of the calibration generator. 3. Connect the P6022 termination and probe to CH1 of the oscilloscope. 4. Set the oscilloscope Vertical Deflection to 20 mV/div. 5. Set the oscilloscope Horizontal Scale to 10 μs/div. 6. Set the oscilloscope Auto Measurement to display "Amplitude". 7.
Service Information 15. Record the results in the test record and compare the results against the high frequency specification. (See Table 1 on page 9.) 16. Set the P6022 termination sensitivity to 10 mA/mV. 17. Set the oscilloscope Vertical Deflection to 2 mV/div. 18. Set the oscilloscope Horizontal Scale to 10 μs/div. 19. Set the Leveled Sinewave Output of the calibration generator to 50 kHz and an amplitude of 5 Vpp. 20. Measure and record the oscilloscope amplitude Auto Measurement as M3 in the table.
Service Information P6022 Test Record Photocopy this form and use it to record the performance test results. Table 9: P6022 test record Instrument Serial Number: Temperature: Date of Calibration: Certificate Number: Relative Humidity %: Technician: Performance test Range, mA/mV Minimum Measured/calculated Maximum Midband Accuracy (% Error) 1 -3% +3% 10 -3% Bandwidth, Low Frequency Response 1 0.707 +3% — 10 0.707 — Bandwidth, High Frequency Response 1 0.707 — 10 0.
Service Information Adjustment Procedure Preparation If the probe does not pass the performance verification procedure or you want to optimize the performance of the probe, perform the following adjustment procedure: 1. Insert a small screwdriver between the cover and the termination near the part number, and gently pry up only the top cover from the P6022 termination by twisting the screwdriver. Leave the bottom cover on, as it must remain in place whenever the termination is in use. 2.
Service Information Adjust Aberrations CAUTION. To avoid damaging the probe, do not disconnect the probe termination when measuring high currents. Leaving the probe cable unterminated can cause a high voltage to develop in the secondary winding which may damage the current probe transformer. 1. Connect the current probe calibration fixture to the fast rise output of the calibration generator. 2. Set the fast rise output to maximum (1 Vpp) 3. Connect the P6022 cable BNC connector to the termination. 4.
Service Information NOTE. The R10 adjustment affects the aberrations of both the 1mA/mV and 10 mA/mV termination setting along with the high frequency response. Readjust the high frequency response if it fails. Figure 8: Location of probe and termination adjustments Maintenance The information in this section will help you maintain your probe for a long service life. Cleaning To clean the probe body, use a soft cloth dampened with water.
Service Information Disassembling the Probe Use the following procedure to disassemble the probe for cleaning or repair. You will need a low power soldering iron with a fine point. Work over a smooth, clean surface so that you can easily find any small pieces that may drop. (See Figure 9.) CAUTION. To avoid degrading the performance of the probe, do not touch the polished mating surfaces of the transformer after cleaning.
Service Information 1. Hold the probe horizontally with the slide switch up. 2. Pull the strain relief boot back over the cable. Lightly rock the strain relief boot from side to side as you pull back on it. 3. Be careful, there is a spring-loaded retainer and a small ball bearing you are about to expose. 4. Slowly lift the upper half of the probe body slightly at the cable end and push the assembly forward over the nose and off. 5. Remove the small ball bearing from the detent in the slide switch. 6.
Service Information Repairing the Probe To make repairs inside the probe body, disassemble the probe as described in the previous section. If you need to solder on the circuit board, use a minimum of heat and observe normal circuit board procedures. If you need to replace the current transformer, replace the entire assembly including the other half of the transformer core mounted in the slide switch. The transformer halves are matched at the factory before shipment.
Replaceable Electrical Parts Replaceable Electrical Parts Parts Ordering Information Replacement parts are available from or through your local Tektronix, Inc. service center or representative. Changes to Tektronix instruments are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest circuit improvements.
Replaceable Electrical Parts Component Number (column 1 of the parts list) The circuit component number appears on the diagrams and circuit board illustrations. Each diagram and circuit board illustration is clearly marked with the assembly number. Assembly numbers are also marked on the mechanical exploded views located in the mechanical parts list. The component number is obtained by adding the assembly number prefix to the circuit number.
Replaceable Electrical Parts Table 10: Replaceable electrical parts Component number Tektronix part number Serial number effective/dscont Name & description A1 670-1112-00 CIRCUIT BD ASSY:PROBE A2 011-0106-00 TERMN,COAXIAL:P6022 A1 670-1112-00 CIRCUIT BD ASSY:PROBE A1C10 283-0157-00 CAP,FXD,CER DI:7PF,5%,50V A1L10 120-0285-00 XFMR,TOROID:4 TURNS,SINGLE A1R10 311-0605-00 RES,VAR,NONWW:TRMR,200 OHM,0.
Replaceable Electrical Parts Figure 10: P6022 probe component location Figure 11: P6022 termination component Location P6022 Instruction Manual 31
Replaceable Mechanical Parts Replaceable Mechanical Parts This section contains a list of the mechanical parts that are replaceable for the P6022. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available from or through your local Tektronix, Inc. service center or representative.
Replaceable Mechanical Parts Table 11: Replaceable mechanical parts Fig. & index no. Tektronix part no. 12 - Serial number effective dscont Qty Name & description ——– 1 P6022,PROBE,CURRENT:120 MHZ,100A,5FT W/TERM -1 204-0360-01 1 BODY,PROBE:UPPER -2 214-0581-00 1 BALL,DETENT:0.062 DIA STEEL -3 351-0174-00 1 SLIDE,TEST PROD:ACETAL -4 214-0735-00 1 SPRING,HLCPS:0.12 OD X 1.
Replaceable Mechanical Parts Figure 12: P6022 exploded view 34 P6022 Instruction Manual
Index A aberrations, 23 accessories termination, 1, 3 accessories, standard, 4 6_inch ground lead, 4 instruction manual, 4 accuracy, 9 attaching the probe, 2, 3 B bandwidth checking, 17, 18, 21 specification, 9 C C28, 24 C29, 24 calibrating the probe, 13 checking performance, 13 circuit description, 12 cleaning the probe, 24 continuous current, maximum, 10 current flow, direction, 6 current vs.
Index R R10, 24 repairing probe, 27 termination, 27 replacing termination circuit board, 27 termination connectors, 27 transformer, 27 S safety service information, 13 Safety Summary, iv sensitivity, 15, 21 checking, 15, 21 specification, 9 sensitivity control, 5, 9, 12 sensitivity setting, 5, 9, 12 service safety warnings, 13 36 shielding, 8, 12 signal delay, 11 sliding switch, 5, 9, 12 soldering procedures for, 27 specifications environmental, 11 physical, 11 T termination, 1, 3 adjustments, 23 circu