Instruction Manual P6131 10X Passive Probe for 2400 Series Oscilloscopes 070-5514-03 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.
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WARRANTY Tektronix warrants that the products that it manufactures and sells will be free from defects in materials and workmanship for a period of one (1) year from the date of purchase from an authorized Tektronix distributor. If any such 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.
Contacting Tektronix Product support For questions about using Tektronix measurement products, call toll free in North America: 1-800-833–9200 6:00 a.m. – 5:00 p.m. Pacific time Or contact us by e-mail: tm_app_supp@tek.com For product support outside of North America, contact your local Tektronix distributor or sales office. Service support Tektronix offers extended warranty and calibration programs as options on many products. Contact your local Tektronix distributor or sales office.
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. Observe All Terminal Ratings.
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 to this product unless another person capable of rendering first aid and resuscitation is present.
Operating Basics The P6131 probe is a subminiature, 10X, passive probe designed specifically for use with Tektronix 2400 Series oscilloscopes. It is fully compatible with the Tektronix family of subminiature probe accessories. The P6131 is available with 1.3 and 2 meter cable. WARNING. To avoid electric shock when using the probe, do not touch the metallic portions of the probe head while connected to a voltage source.
Operating Basics Grounding the Probe Connect the probe to the instrument and connect the ground lead to ground before making any measurement. Ensure that no part of the ground lead contacts voltage in the circuit under test. Except for the probe tip and BNC center conductor, all accessible metal (including the ground clip) is connected to the BNC shell. WARNING. To avoid electric shock when using the probe, keep your fingers behind the finger guard on the probe body. See Figure 1 below.
Specifications The characteristics listed in Table 1 apply to P6131 probes installed on Tektronix 2445 and 2465 oscilloscopes or 7A42 plug-ins, unless otherwise noted. Specifications apply when the instruments warm up for a period of at least 20 minutes in an environment that does not exceed the limits described in Table 2 on page 5. Table 1: Electrical characteristics1 Characteristic Description Attenuation2 10X: ±1% at DC Input resistance2,3 10 MW ±1% at DC Input capacitance3 1.3 m 10.8 pF 2m 13.
Specifications @25% Duty Factor =(1/2 Peak V) RMS 0V @50% Duty Factor =(1.414 (Peak V)) RMS 0V Special case of square wave: @20% Duty Factor =[(VPeak)2 (Duty Factor)] 1/2 0V Example: Maximum Input Voltage =[(650 V Pk)2 (.20)]1/2= 290 V RMS Figure 2: Maximum input voltage calculation example 10M 1M 100K RP and XP ( ) 10K 1M 100 0.01 0.
Specifications 500 Voltage (RMS) 100 10 1 10 100 Frequency (MHz) Figure 4: Typical P6131 voltage derating versus frequency Table 2: Environmental characteristics Characteristic Description Temperature range Operating –15_ C to 65_ C (+5_ F to 149_ F) Nonoperating –62_ C to 85_ C (–80_ F to 185_ F) Humidity Five cycles (120 hr) at 95% to 97% relative humidity, per Tektronix standard 062-2847-00, Class 3. Refer to MIL-E016400F, paragraph 4.5.9 through 4.5.9.5.1, class 4.
Specifications Table 4: Certifications and compliances EC Declaration of Conformity Compliance was demonstrated to the following specification as listed in the Official Journal of the European Communities: Low Voltage Directive 73/23/EEC as amended by 93/68/EEC: Overvoltage Category 6 EN 61010-1/A2 Safety requirements for electrical equipment for measurement, control, and laboratory use EN 61010-2-031:1994 Particular requirements for hand-held probe assemblies for electrical measurement and test Ca
Service Information WARNING. The following instructions are for use by qualified service personnel only. To avoid electrical shock, do not disassemble or maintain the probe while it is connected to a signal source other than those specified in this procedure. This section contains detailed performance checks, adjustments, and maintenance procedures. These procedures use external traceable test equipment to directly check warranted characteristics.
Service Information Table 5: Performance verification and adjustment test equipment (cont.) Description Minimum requirements Example product Termination 50 Tektronix 011-0049-XX Low-reactance alignment tool 2 inch shaft, .
Service Information 4. Adjust the sine wave generator output amplitude to produce a 6-division display on the test oscilloscope. Center the waveform on screen. 5. Set the sine wave generator to the high-frequency range and slowly increase the variable frequency control until the display amplitude decreases to 4.2 divisions (–3 dB) on the oscilloscope. 6. Verify that the sine wave generator frequency readout is greater than or equal to the values listed in Table 6 for your instrument.
Service Information 6. Remove the coax cable from the test setup. Connect the P6131 probe output to the same vertical input on the oscilloscope. 7. Connect the probe tip through the probe-tip-to-BNC adapter to the standard amplitude output of the calibration generator. (You must remove the light gray probe-body shell before inserting the probe tip into the probe-tip-toBNC adapter.) 8. Set the calibration generator output amplitude to 0.
Service Information Low-Frequency Compensation Adjustment To adjust the probe low-frequency compensation do the following: 1. Connect the probe output to the test oscilloscope vertical input. 2. Set the oscilloscope controls as follows: Volts /Division Time/Division Input Coupling Bandwidth 0.1 V (includes 10X probe attenuation) 1 ms DC Full 3. Connect the probe input with hook tip to the oscilloscope calibrator output. 4. Set the oscilloscope triggering for a stable display.
Service Information Over compensated Correct Under compensated Figure 7: Low-frequency compensation, optimizing the waveform High-Frequency Compensation Adjustment To adjust the probe high-frequency compensation do the following: 1. Connect the positive-going fast-rise output of the calibration generator to the test oscilloscope with the precision coax cable and 10X attenuator. 2.
Service Information 8. Connect the probe output to the oscilloscope vertical input. 9. Connect the probe tip through the probe-tip-to-BNC adapter and a 50 W termination to the positive-going fast-rise output of the calibration generator. (The light gray probe-body shell must be removed before inserting the probe tip into the probe-tip-to-BNC adapter.) 10. Verify that the high-frequency aberrations do not exceed +6% (5.30 divisions), –6% (4.70 divisions), or 9% (0.
Service Information R2010 C1010 R2021 R2020 Metal-shell version R2010 R2020 R2021 C1010 C2010 Plastic-shell version Figure 8: High-frequency compensation adjustment locations ≈5 ns R2021 ≈20 ns R2021 ≈3 ns R2021 C1010 Figure 9: High-frequency compensation, optimizing the waveform 14 P6131 Instruction Manual
Service Information Maintenance Use the following procedures to clean and maintain the P6131 probe. Cleaning Probe Module Replacement To remove accumulated dirt from the probe exterior, use a soft cloth dampened with a nonresidue cleaner, preferably isopropyl alcohol. In particular, avoid solvents such as benzene, toluene, xylene, or acetone. Modular construction has been used in the design of the probe to simplify repair.
Service Information 16 P6131 Instruction Manual
Replaceable Parts This section contains a list of the replaceable modules for the P6131 probe. Use this list to identify and order replacement parts. Parts Ordering Information Replacement parts are available through your local Tektronix field office or representative. Changes to Tektronix products are sometimes made to accommodate improved components as they become available and to give you the benefit of the latest improvements.
Replaceable Parts Using the Replaceable Parts List This section contains a list of the replaceable mechanical and electrical components for the P6131 probe. Use this list to identify and order replacement parts. The table below describes the content of each column of the parts list. Parts list column descriptions Column Column name Description 1 Figure & index number Items in this section are referenced by figure and index numbers to the exploded view illustrations that follow.
Replaceable Parts 1 6 5 11 10 3 9 2 4 12 15 8 16 7 17 13 14 Figure 10: P6131 probe with standard accessories Replaceable parts: P6131 probe and standard accessories Fig. & index number Tektronix part number Serial no. effective Serial no. discont’d Qty Name & description Mfr. code Mfr. part number P6131 PROBE 10 –1 206–0314–00 1 COMP BOX ASSY:1.
Replaceable Parts Replaceable parts: P6131 probe and standard accessories (cont.) Fig. & index number Tektronix part number Serial no. effective 10 –6 174–0972–00 Serial no. discont’d Qty Name & description Mfr. code Mfr. part number 8805 1 CABLE ASSY,RF:39 OHM COAX,3.0M (STANDARD ONLY) TK2469 174–0972–00 174–0971–00 8818 1 CABLE ASSY,RF:39 OHM COAX,2.
Replaceable Parts 1 2 7 3 8 4 9 5 10 13 11 6 12 14 Figure 11: P6131 probe optional accessories Replaceable parts: P6131 probe optional accessories Fig. & index number Tektronix part number Serial no. effective 11 –1 131–5030–00 8926 –2 013–0195–00 –3 013–0202–03 Serial no. discont’d Qty Name & description Mfr. code Mfr.
Replaceable Parts Replaceable parts: P6131 probe optional accessories (cont.) Fig. & index number Tektronix part number Serial no. effective Serial no. discont’d 11–5 206–0364–00 8851 1 TIP,PROBE:MICROCKT TEST,0.05 CTR 80009 206–0364–00 –6 013–0084–04 1 ADAPTER,CONN:BNC TO PROBE 80009 013–0084–04 –7 013–0085–00 1 TIP,PROBE:GROUNDING 80009 013–0085–00 Qty Name & description Mfr. code Mfr.
