Tektronix P6137 User manual

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Instructions
P6137
10X Passive Probe
for 2400 Series Oscilloscopes
070-6432-03
*P070643203*
070643203
www.tektronix.com

Copyright ©Tektronix, Inc. All rights reserved.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes
that in all previously published material. Specifications and price change privileges reserved.
Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.

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.
In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration
of the warranty period and make suitable arrangements for the performance of service. Customer shall be
responsible for packaging and shipping the defective product to the service center designated by Tektronix,
shipping charges prepaid, and with a copy of customer proof of purchase. Tektronix shall pay for the return of the
product to Customer if the shipment is to a location within the country in which the Tektronix service center is
located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for
products returned to any other locations.
This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate
maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage
resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product;
b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any
damage or malfunction caused by the use of non-Tektronix supplies; or d) to service a product that has been
modified or integrated with other products when the effect of such modification or integration increases the time
or difficulty of servicing the product.
THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE LISTED PRODUCTS IN
LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS
DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE
PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR
BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY
INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF
WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF
SUCH DAMAGES.

P6137 10X Passive Probe Instructions i
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.
Use Proper Power Cord. Use only the power cord specified for this product and
certified for the country of use.
Use Proper Voltage Setting. Before applying power, ensure that the line selector is
in the proper position for the power source being used.
Connect and Disconnect Properly. Connect the probe output to the measurement
instrument before connecting the probe to the circuit under test. Disconnect the
probe input and the probe ground from the circuit under test before disconnecting
the probe from the measurement instrument.
Ground the Product. This product is indirectly grounded through the grounding
conductor of the mainframe power cord. To avoid electric shock, the grounding
conductor must be connected to earth ground. Before making connections to the
input or output terminals of the product, ensure that the product is properly
grounded.
Observe All Terminal Ratings. To avoid fire or shock hazard, observe all ratings
and markings on the product. Consult the product manual for further ratings
information before making connections to the product.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
Do Not Operate Without Covers. Do not operate this product with covers or panels
removed.
Use Proper Fuse. Use only the fuse type and rating specified for this product.
Avoid Exposed Circuitry. Do not touch exposed connections and components
when power is present.
Do Not Operate With SuspectedFailures. If you suspect there is damage to this
product, have it inspected by qualified service personnel.
Do Not Operate in Wet/DampConditions.
Do Not Operate in an Explosive Atmosphere.
Keep Product Surfaces Clean and Dry.
Provide Proper Ventilation. Refer to the manual’s installation instructions for
details on installing the product so it has proper ventilation.
To Avoid Fire or
Personal Injury

General Safety Summary
ii P6137 10X Passive Probe Instructions
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. Caution statements identify conditions or practices that could result in
damage to this product or other property.
Symbols on the Product. The following symbols may appear on the product:
CAUTION
Refer to Manual
Symbols and Terms

P6137 10X Passive Probe Instructions iii
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.
To avoid electric shock, do not touch exposed connections.

Service Safety Summary
iv P6137 10X Passive Probe Instructions

P6137 10X Passive Probe Instructions 1
Operating Considerations
This manual provides the information necessary to begin making measurements
with your P6137 probe. Topics are presented in the following order:
HOperating Considerations—Information about using the probe.
HSpecifications—Characteristics of the probe.
HAdjustment/Maintenance—Instructions for cleaning the probe and
replacing major assemblies.
HReplaceable Parts—Exploded views of the probe and replaceable parts lists.
Adverse Effects of Ground Lead Inductance
Ground Lead inductance can significantly reduce the performance of a probe. As
shown in Figure 1, the ground lead inserts a series inductance into the signal path
forming a series-resonant circuit between Cin of the probe and ground lead L,
with only Rsource as damping. This forms a resonant circuit with:
f0+1B(2pLC
Ǹ)
Figure 1: Schematic representation of probe
A six-inch ground lead has [180 MHz, which is within the mid-frequency
response of the instrument. This greatly degrades rise time, bandwidth, and
transient accuracy (see Figure 2). For best results, make sure that the ground lead
inductance is at a minimum.

Operating Considerations
2P6137 10X Passive Probe Instructions
Figure 2: Typical response with a 6-inch ground lead (Tr = 2 ns)
The Low-Inductance Lead (shown in Figure 3) provided with all P6137 probes
allows for a substantial reduction of ground-lead inductance (32 nH instead of
140 nH). Remove the ribbed plastic tip cover (1), install the ground collar (2), so
that the socket is pointing toward the probe tip. Reinstall the ribbed cover. Insert
the Low-Inductance Lead (3), from the accessory pack, into the ground socket.
Figure 3: Low-inductance lead

P6137 10X Passive Probe Instructions 3
Specifications
The P6137 is a compact, 1.5 meter 10X, passive voltage probe designed
specifically for use with the Tektronix 2400 Series oscilloscopes. It is fully
compatible with the Tektronix family of compact probe accessories.
Table 1: Electrical Characteristics (Probe installed on 2400 Series
Oscilloscopes)
Characteristic Description
Attenuation 10X ±1% at DC
InputImpedance(System) 10 MWshunted by 10.8 pF at DC (See Figure 4)
CompensationRange 12 pF to 18 pF
SignalDelay Delay difference between any two probes of equal
length is <200 ps
System Bandwidth (–3 dB, using a
properly terminated 50 Wsource)
With2467X or 2465B oscilloscopes >400 MHz
With 2467 or 2465A oscilloscopes >350MHz
With2455X oscilloscopes >250 MHz
With2445X oscilloscopes >200 MHz
MaximumNon-Destructive Input Voltage 500 V (DC + peak AC) to 1.3 MHz (See Figure 5 for
voltagecurve.)
Figure 4: Typical input impedance

Specifications
4P6137 10X Passive Probe Instructions
Figure 5: Typical voltage derating versus frequency
Table 2: Environmental Characteristics
Characteristics Description
TemperatureRange
Operating –15_C to +65_C (+5_F to +149_F)
Non-Operating –62_C to +85_C (–80_F to +185_F)
Humidity Five cycles (120 hr) at 95% to 97% relative
humidity. Per Tek Standard 062–2847–00,Class 3.
Referto MIL-E-16400F, paragraphs 4.5.9 through
4.5.9.5.1,Class 4.
Table 3: Physical Characteristics
Characteristics Description
Probe Cable Length 1.5 m (5 ft)
Net Weight 109 g (3.9 oz)
Safety
To avoid explosion, do not operate this product in an explosive atmosphere
unless it has been specifically certified for such operation.
This product meets the requirements of UL 1244.

P6137 10X Passive Probe Instructions 5
Probe Adjustment/Maintenance
WARNING. The following servicing instructions are for use by qualified
personnel only. To avoid electrical shock, do not perform any probe maintenance
while the probe is connected to a signal source.
Probe Compensation
Due to variations in oscilloscope input characteristics, probe low-frequency
compensation should be checked and adjusted after moving the probe from one
input to another.
To adjust low-frequency compensation, apply a 1 kHz square-wave signal (such
as an oscilloscope calibrator output) to the probe tip. Using a low-reactance
alignment tool, adjust the probe’s compensation capacitor through the hole in the
compensation box to obtain the squarest waveform at the front corner.
High-frequency compensation seldom requires adjustment; however, if the probe
has excessive high-frequency aberrations or insufficient bandwidth, then adjust
the high-frequency compensation.
Typical test equipment required includes a Tektronix PG506A pulse generator
(rise time of ≤1 ns) & Tunnel Diode Pulser (Tektronix part number 067-0681-01)
with pulse rise time of ≤125 ps. Use a 50 Wterminated BNC-to-compact probe
tip adapter (such as Tektronix part number 013-0227-00) to connect the probe to
the equipment.
To adjust high-frequency compensation, first remove the plastic cover (see the
parts replacement procedures). Next, adjust R1 and R3 (shown in Figure 6) for
best long-term flatness. Finally, adjust R2 and C1 for best short-term flatness.
Due to interaction between controls, the adjustment procedure may need to be
repeated. Refer to Figure 7 for additional information about compensation
procedures.

Probe Adjustment/Maintenance
6P6137 10X Passive Probe Instructions
Figure 6: Location of compensation adjustments
Figure 7: Effect of compensation adjustments
Cleaning
Accumulated dirt can be removed with a soft cloth dampened with a non-residue
type cleaner, preferably isopropyl alcohol. Before using any other type of
cleaner, consult your Tektronix Service Center or representative. In particular,
avoid benzene, toluene, xylene, acetone, or similar solvents.

P6137 10X Passive Probe Instructions 7
Parts Replacement
NOTE. Probe adjustment may be necessary after assembly replacement (refer to
the adjustment procedures).
The probe tip assembly, compensation box, and cable are available as separate
units through your local Tektronix field Office or representative. Individual
components within the compensation box are not replaceable.
Compensation Box/Cable Disassembly and Replacement
Use the following procedure to disassemble and replace the compensation box or
the cable assembly (refer to Figure 8 for parts nomenclature).
Figure 8: Compensation box assembly

Parts Replacement
8P6137 10X Passive Probe Instructions
1. Loosen the cable-retainer nut and pull it back onto the cable assembly.
2. Use the adjustment tool included in the accessory pack to remove the top and
bottom plastic covers. Insert the adjustment tool into the side of the
compensation box and pry upward and outward.
3. Pry off the BNC connector shell with a wide-blade screwdriver. Gently pry
the BNC shell away from the compensation box.
NOTE. A new BNC shell comes with the replacement cable/compensation box
assemblies.
4. Lift the top half of the compensation box off.
5. Remove the cable assembly.
NOTE. If you are replacing the cable assembly, you need to use the cable-retainer
nut from your old cable assembly.
6. Use a new cable or a new compensation box, and snap the cable assembly
into place in the bottom half of the compensation box.
7. Place the top half of the compensation box onto the lower half, slide the
cable-nut up and tighten.
8. Press the new BNC shell onto the compensation box making sure the
identification pin goes through the oval slot in the shell (see Figure 8).
9. Snap the plastic covers back in place.

Parts Replacement
P6137 10X Passive Probe Instructions 9
Compact Probe Tip Assembly and Replacement
To remove the probe tip assembly, first pull the retractable hook tip off the probe
(see Figure 9). Next unscrew the tip cover. Finally, unscrew the probe tip
assembly. To reassemble, reverse these procedures.
Figure 9: Probe tip assembly
Manufacturers cross index
Mfr.
code Manufacturer Address City, state, zip code
05006 20TH CENTURY BOK 3628 CRENSHAW BOULEVARD
ATTN: CUSTOM DEPARTMENT LOS ANGELES, CA 90016
060D9 UNITREK CORPORATION 3000 COLUMBIA HOUSE BLVD, SUITE 1
20 VANCOUVER, WA 98661
24931 FCI/BERGELECTRONICSINC RF/COAXIALDIV
2100EARLYWOOD DR
PO BOX 547
FRANKLIN,IN46131
52769 SPRAGUE–GOODMAN ELECTINC 1700 SHAMES DRIVE WESTBURY, NY 11590
7X318 KASO PLASTICS INC 5720–C NE 121ST AVE, STE 110 VANCOUVER, WA 98682
80009 TEKTRONIX INC 14150 SW KARL BRAUN DR
PO BOX 500 BEAVERTON,OR 97077–0001
TK1287 ENOCH MANUFACTURING COMPANY MS 94 PO BOX 5087 PORTLAND,OR 97208–5087
TK2548 XEROX CORPORATION 14181 SW MILLIKAN WAY BEAVERTON, OR 97005
TK2565 VISION PLASTICS INC 26000 SW PARKWAY CENTER DRIVE WILSONVILLE, OR 97070

Parts Replacement
10 P6137 10X Passive Probe Instructions
Replaceable parts list
Fig. &
index
number Tektronix
part number Serial no. effective Serial no. discont’d Qty Name & description Mfr. code Mfr. part number
1 013–0107–06 9139 1 TIP,PROBE:MINIATURE/COMPACT
SIZE,RETRACTABLE HOOK ASSY 80009 013–0107–06
013–0107–07 9140 1 TIP, PROBE:RETRACTABLE HOOK TIP, SLATE
GRAY, FOR 5MM PROBES SAFETY CONTROLLED TK2565 013–0107–07
2 204–1049–00 1 BODY SHELL:TIP COVER, SAFETY CONTROLLED TK2565 204–1049–00
3 206–0378–00 1 PROBE TIP ASSY:10X,11.8PF,9M OHM 80009 206–0378–00
4 344–0398–00 8935 1 CLIP,ELECTRICAL:ALLIGATOR,0.155 L,STL CS PL 80009 344–0398–00
196–3305–00 8936 1 LEAD, ELECTRICAL:22 AWG, 6.0 L, WITH CLIP,
SAFETYCONTROLLED 060D9 196–3305–00
5 174–1081–01 8829 1 CABLEASSY,RF:50OHM COAX,1.5MW/CONN
SHELL 80009 174–1081–01
174–1081–03 8830 8908 1 CABLE ASSY,RF:50OHMCOAX,1.5M
L,W/CONNSHELL 80009 174–1081–03
174–1081–04 8909 1 CABLEASSY,RF:50OHM COAX,1.5L,W/CONN
SHELL 80009 174–1081–04
6 206–0389–00 8908 1 COMP BOX ASSY:1.5 METER,P6137 80009 206–0389–00
206–0389–01 8909 1 COMP BOX ASSY:1.5M,P6137 80009 206–0389–01
7 220–0099–00 1 NUT,RETAINING:CABLE/COMPBOX TK1287 ORDERBY
DESCRIPTION
8 205–0192–00 8908 1 SHELL,ELECCONN:BNC,ACETAL,DOVEGRAY 80009 205–0192–00
205–0192–01 8909 1 SHELL,ELECCONN:BNC,ACETAL,DOVEGRAY TK2565 205–0192–01

Parts Replacement
P6137 10X Passive Probe Instructions 11
Replaceable parts list (cont.)
Fig. &
index
number Mfr. part numberMfr. codeName & descriptionQty
Serial no.
discont’d
Serial no.
effective
Tektronix
part number
9 131–4446–01 8829 1 CONTACT,ELEC:W/INSULATION 80009 131–4446–01
131–3685–01 8830 1 CONTACT:SPRING TIP, GOLD PLATED WITH
TUBING 80009 131–3685–01
STANDARDACCESSORIES
10 343–1003–01 1 COLLAR,GND:P6130, TK2565 343–1003–01
11 195–4240–00 1 LEAD, ELECTRICA:0.025DIAMETER, COPPER, 2.3L 060D9 195–4240–00
12 ––– CONNECTOR,PROBE:W/SOCKET,DATA SHEET
(SEEOPTIONAL ACCESSORIES)
13 196–3113–01 8831 2 LEAD,ELECTRICAL:STRD,26 AWG,3.0 L,0–N W.CLR 80009 196–3113–01
196–3113–03 8832 8935 2 LEAD, ELECTRICA:STRANDED, 22 AWG, 3.0 L,
SAFETYCONTROLLED 060D9 196–3113–03
196–3113–02 8936 2 LEAD, ELECTRICA:STRANDED, 22AWG, 6.0 L,
SAFETYCONTROLLED 060D9 196–3113–02
14 016–0633–00 1 MARKER SET,CA:2 EA VARIOUS COLORS 7X318 PAI–790
15 013–0217–00 8820 1 GRABBER,IC LEAD:BLACK,2.047 L X 0.137 DIA 80009 013–0217–00
206–0364–00 8821 1 TIP,PROBE:MICROCKT TEST,0.05 CTR TK2565 206–0364–00
16 003–1417–00 8844 1 SCREWDRIVER:ADJ TOOL,METAL TIP 52769 GTT–5G
003–1433–00 8845 1 TOOL:ADJUSTMENT,METAL TIP, PLASTIC, BLACK TK2565 003–1433–00
016–0708–00 1 POUCH,ACCESSORY:6.25 X 9.25 05006 501494
070–6432–03 1 MANUAL,TECH:INSTRUCTION,P6137 TK2548 070–6432–03
OPTIONALACCESSORIES
013–0202–02 1 ADAPTER,PROBE:SUBMINIATURE/COMPACT TO
MINI TK2565 013–0202–02
013–0226–00 1 CONNECTOR:BNC TO PROBE TIP ADAPTER
STRAIGHTTHROUGH 24931 28P264–2
013–0227–00 1 CONNECTOR, BNC:50 OHM, BNC TO PROBE TIP
ADAPTER 24931 28P312–1
016–0633–00 1 MARKER SET,CA:2 EA VARIOUS COLORS 7X318 PAI–790
196–3113–00 8831 1 LEAD,ELECTRICAL:STRD,26AWG,6.0L,0–N W/CLR 80009 196–3113–00
196–3113–02 8832 8935 1 LEAD,ELECTRICAL:STRD,22 AWG,6.0 L,SFTY CNTR 060D9 196–3113–02
196–3113–03 8936 1 LEAD,ELECTRICAL:STRD,22AWG,3.0 L,SFTY CNTR 060D9 196–3113–03
003–1433–01 8845 1 TOOL:ADJUSTMENT,PKG OF 5,METAL TIP 80009 003–1433–01
344–0398–00 8936 9125 1 CLIP,ELECTRICAL:ALLIGATOR,0.155 L,STL CS PL 80009 344–0398–00
013–0254–00 9307 1 ADAPTER, CONNEC:BNC TO PROBE TIP, MALE,
STRAIGHT, PROBE, 2.14 INCH L, INTERNAL 4.5 X
0.077 MM TH
24931 28P–302–2
131–5031–00 8926 1 CONNECTOR,PROB:PACKAGE OF 25, COMPACT 80009 131–5031–00