Instruction Manual P6015A 1000X High Voltage Probe 070-8223-05 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 2 Tektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. 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.
Table of Contents General Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . v Service Safety Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Environmental Considerations . . . . . . . . . . . . . . . . . . . . . . . . viii User Information Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Readout Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standard Accessories . . . . . . . . . .
Table of Contents Service Information Performance Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-- 1 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Test Equipment Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Long-Form Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Table of Contents List of Figures Figure 1-- 1: The P6015A High-Voltage Probe . . . . . . . . . . . . 1-- 2 Figure 1-- 2: Compensation Box with Readout Option . . . . . 1-- 3 Figure 1-- 3: Assembling the P6015A . . . . . . . . . . . . . . . . . . . 1-- 5 Figure 1-- 4: Maximum Input Voltage Derating (DC + Peak AC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-- 12 Figure 1-- 5: Peak Pulse Derating . . . . . . . . . . . . . . . . . . . . . .
Table of Contents List of Tables Table 1-- 1: Maximum Input Voltage1,2,3 . . . . . . . . . . . . . . . 1-- 10 Table 1-- 2: Test Equipment Required for Short-Form Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . 1-- 16 Table 1-- 3: Warranted Electrical Characteristics . . . . . . . . . 1-- 24 Table 1-- 4: Warranted Environmental Characteristics . . . . 1-- 25 Table 1-- 5: Typical Electrical Characteristics . . . . . . . . . . . . 1-- 27 Table 1-- 6: Nominal Mechanical Characteristics . . . . .
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 Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present. Do Not Operate in Wet/Damp Conditions. Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Terms in this Manual These terms may appear in this manual: WARNING. Warning statements identify conditions or practices that could result in injury or loss of life. CAUTION.
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. Use Care When Servicing with Power On. Dangerous voltages or currents may exist in this product.
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.
User Information
Overview The P6015A is a ground-referenced 100 MΩ, 3.0 pF high voltage probe with 1000X attenuation. It adds high-voltage measurement capability to oscilloscopes and other measurement devices having an input resistance of 1 MΩ and an input capacitance of 7 pF to 49 pF. WARNING. Due to the inherent hazards associated with taking high-voltage measurements, this product is intended for use by qualified personnel who have had the training to take these types of measurements.
Overview Guard Ring Figure 1- 1: The P6015A High-Voltage Probe 1- 2 P6015A Instruction Manual
Overview Readout Option P6015A compensation boxes that feature the readout option have a pin protruding from the BNC connector (Figure 1-- 2). Some models of Tektronix oscilloscopes (11000 Series and Digital Storage Oscilloscopes) read the code presented by this pin and automatically scale the P6015A measurements by a factor of 1000 to compensate for attenuation.
Overview Standard Accessories The P6015A comes with the following accessories: H ground lead and plug-on clip H hook-shaped probe tip H banana-plug probe tip H carrying case H instruction manual Options The standard P6015A has a 10-ft cable without 1000X readout.
Setup This section tells you how to assemble the P6015A modules as you unpack them from the carrying case.
Setup 1. Insert the end of the cable into the narrow end of the handle and feed the BNC out the other side. 2. Connect the cable to the BNC on the probe head. 3. Screw the handle into the outer body. 4. Plug the crocodile ground clip onto the ground lead if it is not already attached. 5. Read In Detail, beginning on page 1-- 7, before attempting to make probe measurements.
In Detail Before you make any oscilloscope measurement, observe all safety precautions described in the user and service manuals for the equipment you are working on. Some general rules about servicing electrical equipment are worth repeating here. H Observe the safety instruction symbols for the equipment you are working on. H Consult the service manual for the equipment you are working on. H Don’t operate or service an electrical device in an explosive atmosphere.
In Detail WARNING. When measuring high voltages, avoid contact with or close proximity to any electrically conductive surface with your body. Keep hands and fingers behind the guard ring on the probe. WARNING. Make sure that the circuit is deenergized, and that any stored energy is completely discharged before probe installation or removal. Failure to discharge the circuit may cause serous or fatal shock. CAUTION.
In Detail Probe Placement CAUTION. Probe placement can be critical in some applications. To minimize Device-Under-Test circuit loading, the P6015A input resistance is very large and input capacitance is very small. Small changes in capacitance near the input resistor will affect the accuracy of the measurement. These changes can result from placing the probe tip near conductive surfaces.
In Detail Maximum Input Voltage Table 1-- 1 and the following paragraphs indicate conditions where the maximum input of the P6015A is reduced. Table 1- 1: Maximum Input Voltage1,2,3 Max.
In Detail The maximum input voltage of 20 kV (DC + peak AC) is derated at frequencies above 460 kHz (See Figure 1-- 4 on page 1-- 12). The maximum peak pulse of 40 kV (which must never exceed 20 kVrms) is derated under the following conditions: H Duty cycles greater than 10% or durations longer than 100 ms (Figure 1-- 5). Duty cycle is the ratio of pulse width to signal period, expressed as a percentage. H Altitudes higher than 8000 feet (2440 m). See tables 1-- 3 and 1-- 4.
1- 12 1 kV 0.01 2 kV 1.5 kV 5 kV 10 kV 20 kV 0.1 1 kHz Maximum Input Voltage @ >30 Minutes Duration 100 kMz 1 MHz Sine Wave Frequency (100 kHz to 100 MHz) 10 kHz Maximum Input Voltage >1.
Maximum Voltage (peak) In Detail 40 kV 36 kV 33 kV 28 kV 20 kV 10% Duty Cycle 100 ms on time 20% Duty Cycle 50 ms on time 30% Duty Cycle 40 ms on time 50% Duty Cycle 30 ms on time 100% Duty Cycle 100 ms on time 1 ms 100 ms 10 ms 1 sec Duration Figure 1- 5: Peak Pulse Derating Probe Grounding When making any measurement, use the probe ground connector to form the basic two-terminal connection to the device under test. CAUTION. The ground lead is rated at 1 kV maximum.
In Detail NOTE. If you want to check the presence or absence of signals from low-frequency equipment, and if the equipment is line-powered and plugged into the same outlet system as the oscilloscope, then the common three-wire ground system provides the signal ground return. However, this indirect route adds inductance in the signal path, which can produce ringing and noise on the displayed signal, and therefore is not recommended.
In Detail Probe Compensation Short-Form Compensation Procedure The short-form compensation procedure given in this section adjusts for use of the probe on a different oscilloscope input or at a drastically different temperature than that at which it was calibrated (a difference greater than ±15_C). The adjustments necessary under these conditions are accessible through holes in the top cover of the compensation box. The long-form procedure is included in the Adjustments section of Chapter 2.
In Detail Table 1- 2: Test Equipment Required for Short-Form Adjustment Item Minimum Requirements Recommended Example Oscilloscope Input Impedance:1 MΩ Tektronix 11402A with 11A32 plugin, or Tektronix TDS 460 All adjustments Tektronix PG 506A1,2 All adjustments BNC Male-to-GR Adapter Tektronix part number 017-0064-00 All adjustments BNC 50 Ω Termination Tektronix part number 011-0049-01 Transient response adjustment Sensitivity: 1 mV/div Bandwidth: ≥100 MHz Calibration Generator Rise time:
In Detail DC Attenuation 1. Connect the P6015A compensation box to the oscilloscope. 2. Connect a BNC male-to-GR adapter to the calibration generator amplitude output. Connect the P6015A ground lead clip to the outer fin of the GR connector. WARNING. The calibration generator produces dangerous voltages during these procedures. To avoid electrical shock, be careful not to touch the GR center conductor or exposed portions of the probe tip while the generator is on. 3.
In Detail Low-Frequency Compensation 1. Set the calibration generator to high amplitude output, and set the period to 1 ms. Set the pulse amplitude to display five divisions. 2. Set the oscilloscope time base to display 200 s/div. 3. Center the waveform on the screen. 4. Adjust LF COMP (C5) so that the leading corner of the square wave is level with the trailing corner. 5. Adjust MID 1 (C1) to flatten the area 200 s from the leading corner.
In Detail 6. Adjust MID 2 (C2) to flatten the area 100 s from the leading corner. 7. Adjust MID 3 (C4) to flatten the area 50 s from the leading corner. Some interaction exists between the LF COMP, MID 1, MID 2, and MID 3 adjustments. Steps 4 through 7 may have to be repeated several times to achieve optimum flatness of the square wave. Transient Response 1. Set the calibration generator pulse amplitude to minimum. 2. Set the calibration generator output to a square wave with rise time ≤10 ns.
In Detail Caring for the Probe Follow these guidelines to prolong the life of your probe: H Observe the time and temperature specifications for this product shown in the Maximum Input Voltage Chart on page 1-- 4. H Don’t connect a probe ground lead to elevated (“hot”) circuitry. The resultant damage is not covered by probe warranties. H Don’t measure voltages in excess of the probe’s maximum voltage rating. H Don’t mount the probe into fixtures by its nonmetallic front end.
In Detail Other Considerations Component heating caused by changes in ambient temperature or high voltage will cause a slight change in calibration accuracy. With high-frequency signals, such as fast transients, ringing may occur which will distort the actual waveform. This ringing is due to resonance occurring between the capacitance of the probe and the ground lead inductance.
In Detail 1- 22 P6015A Instruction Manual
Specifications Warranted Characteristics This section lists the various warranted characteristics that describe the P6015A High Voltage Probe. Included are warranted electrical and environmental characteristics. Warranted characteristics are described in terms of quantifiable performance limits which are warranted.
Specifications Table 1- 3: Warranted Electrical Characteristics Characteristic Information Maximum input voltage DC + peak AC1 1.5 kV to 20 kV. See frequency derating curve in Figure 1--4. (DC plus peak AC rating is limited to temperatures below 35° C.) Peak pulse 40 kVa (Never exceed 20 kV rms) Duty cycle derating -- 100 ms maximum duration at 10% maximum duty cycle. See duration and duty cycle derating curve in Figure 1--5.
Specifications Table 1- 4: Warranted Environmental Characteristics Characteristic Information Temperature Nonoperating --55_C to +75_C (--67_F to +167_F) Operating DC + peak AC 0_C to +35_C (+32_F to +95_F) Peak Pulse 0_C to +50_C (+32_F to +122_F) (See Table 1--1 on page 1--10 and Time Limitations Specification below) Humidity Nonoperating / Operating 95% relative humidity at +50 °C (+122 °F). See Figure 1--7 for derating characteristics.
Specifications 25 °C 40 kV 35 °C 50 °C 35 kV 40 kV 35 kV 40 kV 0% 35 kV 25 kV 20 kV 30% 70% 95% 80% Relative Humidity Figure 1- 7: Humidity Derating Chart 100 M 0° - 10° Probe Impedance Phase Angle 10 M - 20° - 30° 1M - 40° - 50° 100 k - 60° - 70° 10 k - 80° 1k 10 100 1k 10 k 100 k 1M 10 M 100 M - 90° Frequency Figure 1- 8: Typical Input Impedance and Phase 1- 26 P6015A Instruction Manual
Specifications Typical and Nominal Characteristics This section lists the various typical and nominal characteristics that describe the P6015A High Voltage Probe. Nominal characteristics are determined by design and/or inspection. Nominal characteristics do not have tolerance limits. Typical characteristics are described in terms of typical or average performance. Typical characteristics are not warranted.
Specifications Table 1- 6: Nominal Mechanical Characteristics Characteristic Information Diameter (probe body) 8.9 cm (3.5 in) maximum Length (probe body) 34.5 cm (13.6 in) Length (cable) 10-ft cable 3.05 m (10 ft) 25-ft cable 7.62 m (25 ft) Compensation box 2.5 × 4.1 × 8.3 cm (1 × 1.6 × 3.25 in) Net weight (probe assembly) 10-ft cable 0.66 kg (1.47 lbs) 25-ft cable 0.75 kg (1.66 lbs) Shipping weight (including accessories) 1- 28 10-ft cable 2.85 kg (6.27 lbs) 25-ft cable 2.93 kg (6.
WARNING The following servicing instructions are for use only by qualified personnel. To avoid injury, do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so. Refer to all safety summaries before performing any service.
Service Information
Performance Verification The performance verification procedure verifies that the P6015A performs as described in the Specifications section of Chapter 1. This procedure can also be used as an acceptance check. The procedure is given in the next section, Adjustments. The performance verification consists of the long-form compensation procedure with an additional step to check bandwidth and rise time: 1. Check DC attenuation and adjust if necessary 2.
Performance Verification 2- 2 P6015A Instruction Manual
Adjustments Recalibration ordinarily is necessary only if the P6015A is being used on a different oscilloscope input or at a drastically different temperature than that at which it was calibrated (a difference greater than ±15_C). The adjustments necessary for recalibration under these conditions are accessible through holes in the top cover of the compensation box. The basic probe compensation procedure is given in the In Detail section of Chapter 1 in this manual.
Adjustments Table 2- 1: Test Equipment Required for Long-Form Adjustment Item Minimum Requirements Recommended Example Oscilloscope Input Impedance:1 MΩ Tektronix 11402A with 11A32 plugin, or Tektronix TDS 460 All checks and adjustments Tektronix PG 506A1,2 All checks and adjustments other than bandwidth Sensitivity: 1 mV/div Bandwidth: ≥100 MHz Calibration Generator Rise time: ≤10 ns Repetition rate: 1 MHz Application Amplitude: ≥50 V Leveled Sine Wave Generator Range: 50 kHz to 75 MHz Tektr
Adjustments Long-Form Procedure The long-form compensation procedure typically should be necessary only under these conditions: H the probe head or compensation box has been replaced H the probe has come out of compensation because of aging effects over a prolonged period Access to adjustments in this procedure requires removal of the top half of the compensation box (Figure 2-- 1).
Adjustments The long-form adjustment procedure consists of three parts which must be performed in this order: 1. DC attenuation check and adjustment 2. Low-frequency compensation check and adjustment 3. Transient response check and adjustment A fourth step, verification of bandwidth and rise time, is performed only when this procedure is used as a performance verification procedure. DC Attenuation 1. Connect the P6015A compensation box to the oscilloscope. 2.
Adjustments C7 R7 R6 HF COMP C5 LF COMP R9 DC ATTEN C4 MID 3 C2 MID 2 R4 C1 MID 1 R2 R5 Figure 2- 2: Adjustment Locations Low-Frequency Compensation 1. Set the calibration generator to high amplitude output, and set the period to 1 ms. Set the pulse amplitude to display five divisions. 2. Set the oscilloscope time base to display 200 s/div. 3. Center the waveform on the screen. 4. The leading corner of the square wave should be level with the trailing corner. If necessary, adjust C5. 5.
Adjustments 200 s R2,C1 100 s R4,C2 50 s R5,C4 Figure 2- 3: Periods Affected by Compensation Adjustments 6. Adjust R2 and C1 to flatten the area 200 s from the leading corner. Refer to Figure 2-- 3 to locate the zones affected by the adjustments in this and the following steps. NOTE. Figure 2-- 3 shows an idealized waveform. The displayed waveform will include some ground lead ringing. 7. Adjust R4 and C2 to flatten the area 100 s from the leading corner. 8.
Adjustments Transient Response 1. Set the calibration generator pulse amplitude to minimum. 2. Set the calibration generator to output a square wave with rise time ≤10 ns. If you are using a PG 506A, do this by inserting a 50 Ω termination between the high/standard amplitude output and the BNC male-to-GR adapter. 3. Set the oscilloscope time base to display 100 ns/div. Set the oscilloscope vertical deflection to 1 mV/div (1 V/div when using the readout option). 4.
Adjustments Bandwidth and Rise Time Verification The following check is part of the performance verification procedure. You may omit it if you are performing the adjustment procedure. 1. Substitute the sine wave generator for the calibration generator. 2. Set the oscilloscope vertical deflection to 1 mV/div (1 V/div when using the readout option), and set the time base to display 10 s/div. 3. Set the generator frequency to 50 kHz, and set the amplitude to display five divisions peak-to-peak. 4.
Maintenance The P6015A ordinarily requires very little maintenance except for occasional cleaning. This section provides procedures for preventive maintenance, corrective maintenance, and removal and replacement of parts. Preventive Maintenance Preventive maintenance for the P6015A consists of cleaning and visual inspection. CAUTION. Do not attempt to remove the rubber cushioning ring from the front of the probe.
Maintenance swab or cloth. Do not use abrasive compounds on any part of the probe. Compensation Box. Cleaning the interior of the compensation box should seldom be necessary. If cleaning is necessary, blow off any accumulated dust with dry, low-velocity air stream. Remove any dirt that remains with a soft brush. A cotton-tipped swab is useful for cleaning in narrow spaces or for cleaning the circuit components.
Maintenance Mechanical Disassembly and Assembly This section contains mechanical procedures to aid in the replacement of parts within the probe head and compensation box assemblies. NOTE. Perform the long-form compensation procedure after replacing a part. Probe Head The probe head consists of the parts shown in Figure 2-- 4. Refer to that figure while performing the following steps to replace the inner body or other parts. Do Not Remove Rubber Ring CAUTION.
Maintenance Handle Shield Sleeve Cushion Ring Inner Body Tip Outer Body Figure 2- 4: Removal and Replacement of Probe Head 2- 14 P6015A Instruction Manual
Maintenance Removal. 1. Unscrew the probe tip. 2. Unscrew the plastic probe handle from the outer body, and slide the handle back on the cable. Slide the plastic outer body off the front of the assembly. 3. Disconnect the cable BNC from the assembly. Replacement. 1. Insert the ground lead connector through the slot in the outer body. Insert the inner body assembly into the outer body. You may have to lift up and forward on the ground lead to allow the assembly to pass. 2.
Maintenance Compensation Box The compensation box assembly contains three parts that can be replaced individually: the compensation box/circuit board assembly, the cable, and the BNC that connects to the oscilloscope or other instrument. Follow these procedures to replace either the cable or the BNC, or to install them on a new compensation box. The procedures are the same in each case. Removal. 1. Remove the top half of the compensation box. 2. Unsolder the cable (or BNC) center conductor. 3.
Replaceable Parts This section contains a list of the components that are replaceable for the P6015A. As described below, 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. 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 Parts Using the Replaceable Parts List The tabular information in the Replaceable Parts List is arranged for quick retrieval. Understanding the structure and features of the list will help you find all the information you need for ordering replacement parts. Item Names In the Replaceable Parts List, an Item Name is separated from the description by a colon (:). Because of space limitations, an Item Name may sometimes appear as incomplete. For further Item Name identification, U.S.
P6015A Instruction Manual Figure 2- 5: P6015A Exploded View 1 2 3 4 10 9 11 8 5 6 7 Replaceable Parts 2- 19
2- 20 367-- 0438-- 00 174-- 2579-- 00 -6 -7 -8 134-- 0016-- 00 204-- 2202-- 02 - 11 B020000 B020000 206-- 0463-- 00 - 10 B010100 344-- 0005-- 00 1 1 1 1 1 1 016-- 1147-- 00 070-- 8223-- 05 BODY ASSY,PROBE; P6015A PLUG,TIP:BANANA,10-- 32 INT THD END CLIP,ELECTRICAL:ALLIGATOR,2.5 L,W/PLUG & COVER TIP,HOOK:PROBE CASE,CRYG,PROBE: MANUAL,TECH:INSTR,P6015A STANDARD ACCESSORIES CONN,RF PLUG:BNC,;50 OHM,MALE,STR, FEEDTHRU/FRONT PNL,1.555 L,0.285 L 0.375-- 32 THD,0.5L 22 AWG TAB,0.
P6015A Instruction Manual 134-- 0016-- 00 204-- 2202-- 02 - 10 - 11 B020000 B020000 016-- 1147-- 00 070-- 8223-- 05 206-- 0463-- 00 131-- 5320-- 00 -8 B019999 174-- 2579-- 00 -7 B010100 367-- 0438-- 00 -6 344-- 0005-- 00 1 1 119-- 4636-- 03 -5 -9 1 204-- 0116-- 01 1 1 1 1 1 1 1 1 BODY ASSY,PROBE; P6015A PLUG,TIP:BANANA,10-- 32 INT THD END CLIP,ELECTRICAL:ALLIGATOR,2.
2- 22 204-- 2202-- 02 - 11 B020000 B020000 134-- 0016-- 00 - 10 206-- 0463-- 00 016-- 1147-- 00 070-- 8223-- 05 -8 B019999 -------- 131-- 5320-- 00 -7 B010100 367-- 0438-- 00 -6 344-- 0005-- 00 1 1 119-- 4636-- 27 -5 -9 1 206-- 0116-- 00 B019999 -4 B010100 B020000 204-- 1106-- 00 204-- 1106-- 01 -3 1 1 1 1 1 1 1 1 1 1 BODY ASSY,PROBE; P6015A PLUG,TIP:BANANA,10-- 32 INT THD END CLIP,ELECTRICAL:ALLIGATOR,2.
P6015A Instruction Manual 134-- 0016-- 00 204-- 2202-- 02 - 10 - 11 B020000 B020000 206-- 0463-- 00 016-- 1147-- 00 070-- 8223-- 05 -8 B019999 -------- 131-- 0602-- 00 -7 B010100 367-- 0438-- 00 -6 344-- 0005-- 00 1 1 119-- 4636-- 28 -5 -9 1 206-- 0116-- 00 B019999 -4 B010100 B020000 204-- 1106-- 00 204-- 1106-- 01 -3 1 1 1 1 1 1 1 1 1 1 BODY ASSY,PROBE; P6015A PLUG,TIP:BANANA,10-- 32 INT THD END CLIP,ELECTRICAL:ALLIGATOR,2.
Replaceable Parts 2- 24 P6015A Instruction Manual
Index
Index A accessories, standard, 1-- 4 adjustments access, 2-- 5 DC attenuation, 2-- 6 long-form procedure, 2-- 5 low-frequency compensation, 2-- 7 preparation, 2-- 3 test equipment required, 2-- 3, 2-- 4 transient response, 2-- 9 C calibration, period, 2-- 3 characteristics, 1-- 21, 1-- 25 aberrations, 1-- 25 altitude, 1-- 23 bandwidth, 1-- 22 calibration temperature, 1-- 21 DC attenuation, 1-- 22 delay time, 1-- 25 general, 1-- 1 humidity, 1-- 23 input capacitance, 1-- 25 input impedance, 1-- 24 input resi
Index O R operation, guidelines, 1-- 7 options, 1-- 4 readout, 1-- 3, 1-- 8 repair, 2-- 12 replacement parts abbreviations, 2-- 18 general, 2-- 17 item names, 2-- 18 ordering, 2-- 17 probe, 20 ringing ground lead, 1-- 19 power cord, 1-- 12 P performance verification, general, 2-- 1 Phone number, Tektronix, ix probe assembly, 1-- 5, 2-- 13, 2-- 14, 2-- 15 body, 1-- 1 cleaning, 2-- 11 probe compensation, 1-- 13 long-form, 1-- 13 short-form, 1-- 13 DC attenuation, 1-- 15 low-frequency, 1-- 16 transient re