Tektronix DSA70000D Series Istruzioni per l’uso

DSA70000D, DPO70000D/DX/SX,

MSO70000C/DX, DSA70000C,

DPO70000C, and DPO7000C

High Performance Oscilloscopes

ZZZ

Best Practices Manual

*P071298904*

071-2989-04

DSA70000D, DPO70000D/DX/SX,

MSO70000C/DX, DSA70000C,

DPO70000C, and DPO7000C

High Performance Oscilloscopes

ZZZ

Best Practices Manual

www.tektronix.com

071-2989-04

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.

Contacting Tektronix

Tektronix, Inc.

14150 SW Karl Braun Drive

P.O. Box 50 0

Beaverton, OR 97077

USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200.

Worldwide, visit www.tektronix.com to ﬁnd contacts in your area.

Best practices for using high performance oscilloscopes

Optimizing and maintaining the performance of your Tektronix product is critical

to your success. This document summarizes the Best Practices for using Tektronix

DSA70000C/D, DPO70000C/D/DX/SX, MSO70000C/DX, and DPO7000C

Series products. Additional technical, application, and service information is

available at the www.tektronix.com Web site.

Preventing electrostatic

discharge

Electrostatic discharge (ESD) is a concern when handling any electronic

equipment. Most Tektronix instruments and probes are designed with robust ESD

protection. However, large discharges of static electricity applied to the signal

inputs may damage the equipment.

CAUTION. A direct static discharge can damage the input circuitry of the

instrument. To avoid damage, follow these techniques to prevent electrostatic

discharge to the instrument:

1. Discharge the static voltage from your body. To do so, wear a grounded

antistatic wrist strap when you connect and disconnect cables and adapters.

Your instrument provides a convenient ground connection on the front panel

for this purpose.

2. Discharge the static voltage from all cables before connecting them to the

instrument or to the device under test (DUT). Before you attach the cable to the

instrument, momentarily ground the center conductor of the cable, or connect

a50Ωtermination to one end before attaching the cable to the instrument.

NOTE. A cable that is left unconnected on a bench can develop a very large static

charge that can damage the instrument.

MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices 1

Best practices for using high performance oscilloscopes

Connector cleaning All connectors must be kept clean. Dirt in connectors can damage the connector

and any connectors the dirty connector is use with.

Before each use do the following:

1. Verify that the connectors are free of dirt, metal particles, scratches and

deformations.

2. Verify that the connectors are free of dirt, metal particles, scratches and

deformations.

3. With the connector pointed down, use low pressure compressed air, at an

angle to the connector, to clean the connectors.

4. If the connector still needs cleaning, use an appropriately sized swab

moistened with isopropyl alcohol to clean the connector threads.

CAUTION. Never put pressure on the center pin of the connectors. Applying

pressure to the center pin could damage the connector.

2 MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices

Best practices for using high performance oscilloscopes

Input connector protection Use 8 inch-pounds of torque when making connections to a 1.85 mm connector

or to SMA connectors. Using the improper torque may degrade your signals

and damage the connectors.

Use the following procedure to make connections:

Discharge the static voltage from your body by wearing a grounded antistatic

wrist strap while connecting and disconnecting cables and adapters. The

instrument provides a front panel connection for this purpose.

Figure 1: Wear an antistatic wrist strap

Use the supplied connector saver to protect the instrument connector. When

not in use, protect against dirt and ESD damage by installing the end cap.

Alternate locations to store the ATI protective cover include the upper right

corner of the front panel and to the right of the audio connectors on the rear

panel. When installing the connector saver tighten to 8 inch-pounds.

MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices 3

Best practices for using high performance oscilloscopes

Figure 2: Installing a connector saver

Use the backing wrench on the connector saver to prevent damage caused by

rotation of the connectors when installing a connector.

Use the supplied torque wrench to tighten (8 inch-pounds) your cable

connector to the connector saver.

CAUTION. Failure to use a backing wrench and torque wrench when making

connections may damage your instrument.

4 MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices

Best practices for using high performance oscilloscopes

DPO70000SX

multi-instrument trigger

connections

Usecarewhenma

king connections to the rear panel trigger connectors. Use the

following procedure when making trigger connections:

1. Thoroughly inspect each connector. Do not use connectors that display any

damage.

CAUTION. Do not use a damaged connector. Using a damaged connector with

a good connector will damage the good connector.

2. Carefully align the cable connector with the connector on the instrument.

3. Insert the cable connector straight into the instrument connector.

4. Tighten the connector screws to help maintain the connection and alignment

of the connectors.

Signal path compensation

and instrument calibration

Signal Path Compensation (SPC) corrects for DC inaccuracies caused by

temperature variations or by long-term drift. Remove all channel input

connections and run the SPC routine occasionally or whenever the ambient

temperature of the instrument has changed by more than 5 °C (9 °F) to assure that

acquisitions are made with a high degree of accuracy.

NOTE. For best accuracy, wait at least 3 hours after power on before running

SPC.

MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices 5

Best practices for using high performance oscilloscopes

Adhere to a regular schedule of calibration of the instrument. A Tektronix

Calibration Service plan is the most efﬁcient way to ensure speciﬁed performance

over the lifetime of your Tektronix instrument. The service plan also guarantees

continuous compliance with international quality and traceability standards.

Contact your Tektronix Representative or refer to the www.tektronix.com Web

site for instrument calibration services.

Instrument temperature

and clearance

The instrument must have 3 inches of clearance on both the left and right sides for

proper ventilation. The air temperature around the instrument must be between

+5 °C and +45 °C (+41 °F and +113 °F).

DPO70000SX

environmental conditions

For measurements impacted by sub-picosecond skew, leave the instrument

powered on for at least 6 hours to allow the instrument to stabilize to environmental

conditions before running SPC, deskew, or taking precision measurements.

Deskew channels Use the Deskew/Attenuation control window to compensate for propagation

delays of different length probes and to set the input/output ratio of any external

attenuation or gain between the signal and input channels. Deskew relates directly

to the vertical settings, so it is important to deskew at the vertical settings at which

measurements will be taken or within the same ampliﬁer range. Refer to the

Deskew/Attenuation Control Window topic in the Online Help of the instrument

for information on the deskew and attenuation procedures.

Operating system restore The instrument contains an operating system restore ﬁle on a separate partition of

the hard drive. The preferred method to restore the operating system is to use the

hard disk restore ﬁle. For more information, see the instrument user manual.

Updates to ﬁrmware and

applications

You should regularly check for updates to the instrument ﬁrmware and

applications of your Tektronix products. Access the www.tektronix.com/software

Web page and search for the model number of your instrument (or application) to

check for updates.

6 MSO70000C/DX, DPO70000C/D/DX/SX, DSA70000C/D, DPO7000C Best Practices

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