Tektronix P6139A User manual

Instructions
P6139A
10X Passive Probe
063-0870-03
*P063087003*
063087003
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 97077-1000
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.

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:
[email protected]
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.
For a listing of worldwide service centers, visit our web site.
For other
information In North America: 1-800–833–9200
An operator can direct your call.
To write us
Web site
Tektronix, Inc.
P.O. Box 500
Beaverton, OR 97077-1000
USA
www.tektronix.com

P6139A 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.
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. 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.
The common terminal is at ground potential. Do not connect the common
terminal to elevated voltages.
Do not apply a potential to any terminal, including the common terminal, that
exceeds the maximum rating of that terminal.
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.
To Avoid Fire or
Personal Injury

General Safety Summary
ii P6139A 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.
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.
CAUTION indicates a hazard to property including the product.
Symbols on the Product. The following symbols may appear on the product:
ProtectiveGround
(Earth)Terminal ATTENTION Refer to Manual Double Insulated
DANGER
High Voltage
Refer to the specifications section for a listing of certifications and compliances
that apply to this product.
Symbols and Terms
Certifications and
Compliances

P6139A Instructions 1
Operating Basics
The P6139A is a compact high impedance passive probe designed for use with
Tektronix TDS 3000 and TDS 500 Series digitizing oscilloscopes. The P6139A
has a 1.3 meter cable and is fully compatible with the Tektronix family of
compact size (3.5 mm) probe accessories. The Replaceable Parts list beginning
on page 7 identifies the standard and optional accessories for the P6139A probe.
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.
Probe Compensation
Due to variations in oscilloscope input characteristics, probe low-frequency
compensation may need adjustment after moving the probe from one oscillo-
scope to another. If a 1 kHz calibrated square wave displayed at 1 ms/division
shows significant differences between the leading and trailing edges, perform the
following steps to optimize low-frequency compensation.
1. Connect the probe to the calibration signal on the oscilloscope front panel.
2. Press AUTOSET or otherwise adjust your digitizing oscilloscope to display
a meaningful waveform.
3. Adjust the trimmer in the probe (accessible through the compensation box)
until you see a perfectly flat-top square wave on the display. See Figure 1.
Undercompensated Overcompensated Properly compensated
Figure 1: Probe compensation waveforms
Cleaning
To remove accumulated dirt from the probe exterior, use a soft cloth dampened
with a mild detergent and water solution or isopropyl alcohol. Do not use
solvents such as benzene, toluene, xylene, or acetone. Avoid abrasive cleaners.

2P6139A Instructions
Features and Accessories
Table 1 illustrates the features and standard accessories of the P6139A probe.
Table 1: Features and Accessories
Feature/Accessory Description Applications/Notes
Retractable hook tip Connects the probe tip to wires and component leads for
hands-freemeasurement.
NOTE. For a solid connection, firmly push and twist the hook
tip onto the probe tip before using.
Adjustmenttool Used to adjust probe compensation. Access the adjustment
through the opening in the compensation box.
Colormarker bands Color codes the probe to the oscilloscope input when more
than one probe is in use. Clip one band around the strain relief
of the probe head and the matching band on the strain relief of
probeoutput.
SMTKlipChipand ground
lead Connects the probe ground to small or hard to reach ground referencepoints.
Low-inductanceground The ground collar and short lead connect the probe ground to a
ground reference close to the signal source. The short lead
minimizes aberrations on high-frequency signals caused by the
inductance of the ground lead.
Groundlead with insulated
alligatorclip Connects the probe ground to ground reference.
Guard
Guard Keeps fingers away from the probe tip for protection against
electricshock.
WARNING. To avoid electric shock when using the probe, keep fingers behind the
guard on the probe body.

P6139A Instructions 3
Specifications
The characteristics listed in Table 2 apply to a P6139A probe installed on a
Tektronix TDS 3054 oscilloscope unless otherwise noted.
Specifications apply when the instrument warms up for a period of at least
20 minutes in an environment that does not exceed the limits described in
Table 3 on page 4.
Table 2: Electrical characteristics
Characteristic Description
Attenuation110X ±0.5% at DC
InputResistance110 MW±0.5%
InputCapacitance 8.0 pF (±0.8 pF)
CompensationRange 8 pF to 12 pF
System Bandwidth (–3 dB) 500 MHz (TDS 3054) or TDS 500 series
100 MHz (TDS 3012)
Maximum Input Voltage2,3 400 V RMS CAT I or 400 V DC CAT I
300 V RMS CAT II or 300 V DC CAT II
150 V RMS CAT III or 150 V DC CAT III
590 V peak, <50% DF, <1 sec PW
930 V peak, <20% DF, <1 sec PW
1250 V peak, <10% DF, <50 msec PW
See Figure 4 for voltage derating curve.
1Systemcharacteristic.
2As defined in EN61010-1. See Certifications and compliances in Table 4.
3RMS=Root Mean Square=rms=The square root of the average of the sum of the
squares of the instantaneous voltage in one cycle = .
300 VDC=300V RMS, 420 V Peak (sinewave)=300 V RMS See Figure 2.
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Specifications
4P6139A Instructions
@25% Duty Factor
=(1/2 Peak V) RMS
@50% Duty Factor
=(1.414 (Peak V)) RMS
Special case of square wave:
@20% Duty Factor
=[(VPeak)2(Duty Factor)] 1/2
Example: Maximum Input Voltage
=[(930 V Pk)2(.20)]1/2= 415 V RMS
0V
0V
0V
Figure 2: Maximum input voltage calculation example
Table 3: Physical and environmental characteristics
Characteristic Description
Net Weight(IncludingAccessories) <110 g (0.24 lb)
Temperature Range
Operating –15_C to +65_C (+5_F to +149_F)
Nonoperating –62_C to +85_C (–80_F to +185_F)
Humidity1Five cycles (120 hr) at 95% to 97% relative
humidity
Altitude < 2000 meters
1Tektronix standard 062-2847-00, class 3. Refer to MIL-E-16400F, paragraph 4.5.9
through 4.5.9.5.1, class 4.