Keysight Technologies U4205A User Manual

Keysight U4205A Direct Connect
34-Channel Mictor Probe

User Guide

2 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Notices

CAUTION

WARNING

© Keysight Technologies 2014

No part of this manual may be reproduced
in any form or by any means (including
electronic storage and retrieval or transla­tion into a foreign language) without prior
agreement and written consent from
Keysight Technologies as governed by
United States and international copyright
laws.

Manual Part Number

U4205-97000

Edition

First Edition, November 2014

Keysight Technologies
1900 Garden of the Gods Road
Colorado Springs, CO 80907 USA

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THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED "AS IS," AND IS
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Safety Notices

A CAUTION notice denotes a hazard.
It calls attention to an operating pro­cedure, practice, or the like that, if
not correctly performed or adhered
to, could result in damage to the
product or loss of important data. Do
not proceed beyond a CAUTION
notice until the indicated conditions
are fully understood and met.

A WARNING notice denotes a hazard.
It calls attention to an operating pro­cedure, practice, or the like that, if
not correctly performed or adhered
to, could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.

3 Keysight U4205A Direct Connect 34-Channel Mictor Probe

4 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Contents

1 U4205A Overview

2 Mechanical Considerations

U4205A - At a Glance 8

The U4205A 34-channel 38-pin Single-ended Mictor Probe: 8

Introduction to U4205A Use 9

Descriptions of U4205A direct connect probe 9
Number of probes required 9
Maximum state speed supported 9

The U4205A 34-Channel 38-pin Single-Ended Mictor Probe 10

Characteristics 12

Probe Dimensions 13

MICTOR Connector Dimensions 14

Support Shroud Dimensions 15

Footprint Dimensions 16

U4205A 38-pin single-ended probe pin out table 17

3 Operating U4205A Probe

Equivalent Probe Load 20

Measured versus modeled input impedance 21

4 Circuit Board Design

Transmission Line Considerations 24

Keysight U4205A Direct Connect 34-Channel Mictor Probe 5

Contents

5 Recommended Reading

6 Connectors and Shrouds

16850 Series and U4154A Data and Clock Inputs per Operating
Mode 25

Thresholds 26

U4205A Direct-Connect 34-Channel 38-pin Single-Ended Mictor
Probe

26

Signal Access 27

Labels split across probes 27
Re-ordered bits 27

For More Information 30

MECL System Design Handbook 30
High-speed Digital Design 30
Designing High-speed Target Systems for Logic Analyzer Probing 30

Ordering Probing Connectors and Shrouds 32

7 Safety Information

Safety Symbols 34

Informations relatives à la sécurité 36

Symboles de sécurité: 37

6 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Keysight U4205A Direct Connect 34-Channel Mictor
Probe

User Guide

1 U4205A Overview

U4205A - At a Glance / 8
Introduction to U4205A Use / 9
The U4205A 34-Channel 38-pin Single-Ended Mictor Probe / 10

This chapter describes features and specifications of U4205A 34-channel
single-ended Mictor probe.

1 U4205A Overview

U4205A - At a Glance

The U4205A 34-channel 38-pin Single-ended Mictor Probe:

The U4205A is a 34-channel single-ended Mictor probe which is
compatible with the 160-pin interface on logic analyzers including the
Keysight 16850-series portable logic analyzers and U4154A logic analysis
AXIe-based modules. For more information on Keysight logic analyzers,
refer to http://www.keysight.com/find/logicanalyzer. For more
information on your specific analyzer, refer to the Online help.

• Compatible with the 16850 Series and U4154A

• Compatible with boards designed for Keysight E5346A

• 34 Channels

• State speeds up to 600 Mb/s

• 300 mV peak- to- peak sensitivity

• 38- pin MICTOR connector

• Requires AMP MICTOR 38 connector and Keysight support
see page 32

38- pin probe

shroud

Figure 1 E5386A half channel adapter

8 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Introduction to U4205A Use

Descriptions of U4205A direct connect probe

Number of probes required

Probe Logic Analyzer Module

U4205A 38-pin single-ended probe 4 1 2 3 4

U4205A Overview 1

This chapter provides information to help you utilize the U4205A. Tables in
this chapter show you the number of probes required and the maximum
state speed supported depending

on which logic analyzer you have.
Another table shows the number of data and clock inputs for the various
operating modes of your logic analyzer.

• U4205A Direct Connect 34-Channel 38-pin single-ended probe

This table shows how many probes are required to provide connections to
all channels of your logic analyzer module.

Table 1 Number of probes required

U4154A 16851A 16852A 16853A 16854A

Maximum state speed supported

This table gives you the maximum state speed that is

supported by the

combination of a probe and your logic analyzer module.

Table 2 Maximum state speed supported

Probe Logic Analyzer Module

U4154A 16851A 16852A 16853A 16854A

U4205A 38-pin single-ended
probe

Keysight U4205A Direct Connect 34-Channel Mictor Probe 9

600 Mb/s 600 Mb/s

1 U4205A Overview

The U4205A 34-Channel 38-pin Single-Ended Mictor Probe

The U4205A is a direct connect, 34- channel, single- ended, 38- pin probe
designed to be compatible with the AMP MICTOR 38- pin connector. It is
pin- compatible with target systems that were designed for the Keysight
E5346A 38- pin probe, thus enabling you to use Keysight's latest logic
analyzers with target systems that were designed for older Keysight logic
analyzers. The U4205A is compatible with the Keysight 16851A,
16852A,16853A and 16854A portable logic analyzers, and the U4154A
logic analyzer module. It is capable of capturing state (synchronous) data
at clock speeds up to 600 MHz, at data rates up to 600 Mb/s, with signal
amplitudes as small as 300 mV peak- to- peak.

The Keysight E5346- 68701 or E5346- 68700 probing connector kit is
required for connecting the U4205A probe to your target system. The kit
contains five mating connectors and five support shrouds. The connectors
and shrouds may be ordered separately if desired. See the table on

page 32 for part numbers.

Figure 2 U4205A 38-pin single-ended probe

See Also: Chapter 2 for the mechanical information to design the connector
into your target system boards.

10 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Keysight U4205A Direct Connect 34-Channel Mictor
Probe

User Guide

2 Mechanical

Considerations

Characteristics / 12

Probe Dimensions / 13

MICTOR Connector Dimensions / 14
Support Shroud Dimensions / 15
Footprint Dimensions / 16
U4205A 38-pin single-ended probe pin out table / 17

This chapter describes mechanical considerations and dimensions of
U4205A 34-channel single-ended Mictor probe.

2 Mechanical Considerations

Characteristics

Electrical considerations such as equivalent probe loads, input impedance,
and time domain transmission are shown in chapters 3 and 4 of this manual.
Other characteristics are
using.

dependent on the logic analyzer module you are

12 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Probe Dimensions

Mechanical Considerations 2

The following figure shows the dimensions of the 38- pin single- ended
probe.

Figure 3 U4205A 38-pin single-ended probe dimensions

Keysight U4205A Direct Connect 34-Channel Mictor Probe 13

2 Mechanical Considerations

MICTOR Connector Dimensions

The U4205A probe is compatible with target systems designed for the
Keysight E5346A 38- pin probe. This probe requires a probe kit that
contains MICTOR connectors and
numbers.

shrouds. Refer to page 32 for the kit part

Figure 4 MICTOR 38-pin connector dimensions

14 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Support Shroud Dimensions

Bottom View

Mechanical Considerations 2

Support shrouds are not required but are recommended if pulling forces
may be applied to the cables that could cause the connector to be
dislodged. Refer to page 32 for the kit

part numbers.

Figure 5 Support shroud dimensions for the MICTOR 38-pin connector

Keysight U4205A Direct Connect 34-Channel Mictor Probe 15

2 Mechanical Considerations

Footprint Dimensions

Use the following 38- pin MICTOR connector footprint and support shroud
mounting hole dimensions to design your target system board.

Figure 6 38-pin MICTOR connector footprint and support shroud mounting hole

16 Keysight U4205A Direct Connect 34-Channel Mictor Probe

dimensions

U4205A 38-pin single-ended probe pin out table

The following table lists the signal, Mictor pin number and the channel
values of the U4205A 38-pin single-ended probe.

Table 3 U4205A 38-pin single-ended probe pin out table

Mechanical Considerations 2

U4205A
Single-ended
Probe

Signal
Name

Clk 5 Clk Which

D 15 7

D 14 9 14 D 14 10 14

D 13 11 13 D 13 12 13

D 12 13 12 D 12 14 12

D 11 15 11 D 11 16 11

D 10 17 10 D 10 18 10

D 9 19 9 D 9 20 9

D 8 21 8 D 8 22 8

D 7 23 7 D 7 24 7

D 6 25 6 D 6 26 6

D 5 27 5 D 5 28 5

D 4 29 4 D 4 30 4

Mictor
Pin

12

Logic Analyzer U4205A Single-ended

Channel Pod Signal

ever pod is
connected
to “Even”
on the
U4205A
probe

Probe

Name

Clk 6 Clk Whichever

D 15 8

Mictor
Pin

15

Logic Analyzer

Channel Pod

pod is
connected
to “Odd”
on the
U4205A
probe

D 3 31 3 D 3 32 3

D 2 33 2 D 2 34 2

D 1 35 1 D 1 36 1

D 0 37 1 D 0 38 1

Ground 39-43 Ground 39-43

Keysight U4205A Direct Connect 34-Channel Mictor Probe 17

2 Mechanical Considerations

NOTE

Do not connect the following pins. These pins are +5 volt supply and DC return
for analysis probes.

+5 V dc 1
Ground 3

Do not connect the following pins. They are used by the Keysight logic analyzer
with an emulator or analysis probe to program or read target information.

SCL 2
SDA 4

18 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Keysight U4205A Direct Connect 34-channel Mictor
Probe

User Guide

3 Operating U4205A

Probe

Equivalent Probe Load / 20

This chapter describes load specifications for operating U4205A
34-channel single-ended Mictor probe.

3 Operating U4205A Probe

Equivalent Probe Load

The equivalent probe load for the U4205A probe is shown in the figure
below. It includes the 38- pin MICTOR connector and the target connector.
The model is accurate up to 1 GHz.

Figure 7 Equivalent load for U4205A

20 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Measured versus modeled input impedance

The U4205A probes have an input impedance which varies with frequency,
and depends on which accessories are being used. The following graph
shows the input impedance of the probe.

Operating U4205A Probe 3

Figure 8 Measured versus modeled input impedance

Keysight U4205A Direct Connect 34-Channel Mictor Probe 21

3 Operating U4205A Probe

22 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Keysight U4205A Direct Connect 34-Channel Mictor
Probe

User Guide

4 Circuit Board Design

Transmission Line Considerations / 24
16850 Series and U4154A Data and Clock Inputs per Operating Mode / 25
Thresholds / 26
Signal Access / 27

This chapter describes design considerations for circuit board layout for
U4205A 34-channel single-ended Mictor probe.

4 Circuit Board Design

Transmission Line Considerations

Stubs connecting signal transmission lines to the connector should be as
short as feasible. Longer stubs will cause more loading and reflections on a
transmission line. If the
signal rise time, it can be modeled as a lumped capacitance. Longer stubs
must be treated as transmission lines.

Example

Assume you are using FR-4 PC board material with a dielectric constant of
~4.3 for inner-layer traces (microstrip). For example, A 0.28 cm long stub
in an inner layer has a propagation delay of ~20 ps. Therefore, for a signal
with a rise time of 100 ps or greater, a 0.28 cm stub will behave like a
capacitor.

The trace capacitance per unit length will depend on the trace width and
the spacing to ground or power planes. If the trace is laid out to have a
characteristic impedance of 50 ohms, it turns out that the capacitance per
unit length is ~ 1.2 pF/cm. Therefore, the 0.28 cm stub in the previous
example would have an effective capacitance equal to ~0.34 pF.

This trace capacitance is in addition to the probe load

electrical length of a stub is less than 1/5 of the

model.

24 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Circuit Board Design 4

NOTE

16850 Series and U4154A Data and Clock Inputs per Operating Mode

The following table shows the number of data and clock inputs for each
connector on your target system for the various operating modes of your
U4154A and 16850 Series logic analyzer.

Table 4 Data clock inputs per operating mode

U4154A and 16850 Series
Operating Mode

Synchronous (state)
analysis maximum
800 Mb/s

Eye scan mode 800 Mb/s 32 data

Timing mode 32 data

U4205A

32 data
plus 2
clock inputs
(see Note below)

plus 2
clock inputs
(see Note below)

plus 2
clock inputs

In synchronous (state) analysis mode, and in the eye scan mode, there is one
clock input which must be routed to the clock input on pod 1. The clock inputs
on other pods can be assigned to labels and acquired as data inputs.

Keysight U4205A Direct Connect 34-Channel Mictor Probe 25

4 Circuit Board Design

Thresholds

U4205A Direct-Connect 34-Channel 38-pin Single-Ended Mictor Probe

All inputs in the U4205A 38-pin probe are single- ended. The
does not have a threshold reference input. When you use the U4205A, you
adjust the logic threshold in the user interface.

The clock input on the U4205A is sing le- ended. The clock
adjusted independent of the data.

U4205A

threshold may be

probe

26 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Signal Access

Circuit Board Design 4

Labels split across probes

Re-ordered bits

If a label is split across more than one pod, this may lead to
triggering. Refer to "Triggering with the Keysight 16760A" (Keysight
publication number 5988- 2994EN) for more details. Triggering restrictions
across more than one pod may or may not apply depending upon the
actual configuration.

If bits need to be reordered within a label, this leads to
restrictions in triggering. Specifically, equalities can be used to evaluate the
value of a label with reordered
may be able to avoid the need to reorder bits in a label by routing signals to
appropriate pins on the probe connector. Refer to “Triggering with the
Keysight 16760A" (Keysight publication
details.

bits, but inequalities cannot be used. You

number 5988- 2994EN) for more

restrictions in

additional

Keysight U4205A Direct Connect 34-Channel Mictor Probe 27

4 Circuit Board Design

28 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Keysight U4205A Direct Connect 34-Channel Mictor
Probe

User Guide

5 Recommended

Reading

For More Information / 30

This chapter lists the recommended reading for more information about
systems and high- speed digital design.

5 Recommended Reading

For More Information

MECL System Design Handbook

High-speed Digital Design

Designing High-speed Target Systems for Logic Analyzer Probing

For more information on Keysight logic analyzers, refer to

http://www.keysight.com/find/logicanalyzer.For more information on

your specific analyzer, refer to the online help in the product.

Blood, William R. Jr., "MECL System Design Handbook," 4th edition, 1988,
published by Motorola. This handbook can be obtained from ON
Semiconductor on the web. Go to

<http://onsemi.com>. Click on "On- line ordering" under
"Documentation." Click on the link "General search." Type in "HB205" in
the "Document number" field. Click "Submit." To view the document
online, click on "PDF" in the right- hand column titled "PDF MFAX." Or
order a hardcopy of the handbook on- line.

Johnson, Howard W., and Martin Graham, "High- speed Digital Design,"
Prentice- Hall, 1993, ISBN 0- 13- 395724- 1

“Designing High- speed Target Systems for Logic Analyzer
Keysight Technologies application note publication

30 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Probing”

number 5988- 2989EN.

Keysight U4205A Direct Connect 34-Channel Mictor
Probe

User Guide

6 Connectors and

Shrouds

Ordering Probing Connectors and Shrouds / 32

This chapter lists the Keysight part numbers of the Probes and their
corresponding Targets.

6 Connectors and Shrouds

Ordering Probing Connectors and Shrouds

Connectors and shrouds may be ordered in kits or ordered separately.
Select a support shroud appropriate for the thickness of your PC board. The
following table lists the
connectors and shrouds.

Table 5 Keysight part numbers

Keysight part numbers for each of these

For Probes
Model #

U4205A E5346-68701 5 MICTOR Connectors

Keysight Part
Number

E5346-68700 5 MICTOR Connectors

1252-7431 1 MICTOR Connector n/a

AMP part
#2-767004-2

E5346-44701 1 Support Shroud up to 1.57 mm (0.062”)

E5346-44704 1 Support Shroud 1.575 to 3.175 mm

E5346-44703 1 Support Shroud 3.175 to 4.318 mm

Consists of For Target PC Board

& 5 Support Shrouds

& 5 Support Shrouds

1 MICTOR Connector n/a

Thickness

up to 1.57 mm (0.062
in.)

1.575 to 3.175 mm
(0.062 to 0.125 in.)

(0.062 to 0.125 in.)

(0.125 to 0.70 in.)

32 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Safety Information

CAUTION

The following general safety precautions must be observed during all phases of operation
of this instrument. Failure to comply with these precautions or with specific warnings or
operating instructions in the product manuals violates safety standards of design, manu­facture, and intended use of the instrument. Keysight Technologies assumes no liability for
the customer's failure to comply with these requirements. Product manuals are provided
with your instrument on CD-ROM and/or in printed form. Printed manuals are an option
for many products. Manuals may also be available on the Web. Go to www.keysight.com
and type in your product number in the Search field at the top of the page.

General Do not use this product in any manner not specified by the manufacturer. The protective

features of this product may be impaired if it is used in a manner not specified in the op­eration instructions.

Before Applying Power Verify that all safety precautions are taken. Make all connections to the unit before

applying power. Note the instrument's external markings described in “Safety Symbols”.

Ground the Instrument If your product is provided with a grounding type power plug, the instrument chassis and

cover must be connected to an electrical ground to minimize shock hazard. The ground
pin must be firmly connected to an electrical ground (safety ground) terminal at the
power outlet. Any interruption of the protective (grounding) conductor or disconnection
of the protective earth terminal will cause a potential shock hazard that could result in
personal injury.

Fuses See the user's guide or operator's manual for information about line-fuse replacement.

Some instruments contain an internal fuse, which is not user accessible.

Do Not Operate in an

Do not operate the instrument in the presence of flammable gases or fumes.

Explosive Atmosphere

Do Not Remove the

Instrument Cover

Only qualified, service-trained personnel who are aware of the hazards involved should
remove instrument covers. Always disconnect the power cable and any external circuits
before removing the instrument cover.

Cleaning Clean the outside of the instrument with a soft, lint-free, slightly dampened cloth. Do not

use detergent or chemical solvents.

Do Not Modify the

Instrument

Do not install substitute parts or perform any unauthorized modification to the product.
Return the product to Keysight Sales and Service Office for service and repair to ensure
that safety features are maintained.

In Case of Damage Instruments that appear damaged or defective should be made inoperative and secured

against unintended operation until they can be repaired by qualified service personnel.

A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice,
or the like that, if not correctly performed or adhered to, could result in damage to the
product or loss of important data. Do not proceed beyond a CAUTION notice until the
indicated conditions are fully understood and met.

Keysight U4205A Direct Connect 34-Channel Mictor Probe 33

WARNING

A WARNING notice denotes a hazard. It calls attention to an operating procedure,
practice, or the like that, if not correctly performed or adhered to, could result in
personal injury or death. Do not proceed beyond a WARNING notice until the indicated
conditions are fully understood and met.

Safety Symbols

Symbol Description

Direct current

Alternating current

Both direct and alternating current

Three phase alternating current

Earth ground terminal

Protective earth ground terminal

Frame or chassis ground terminal

Terminal is at earth potential

Equipotentiality

N Neutral conductor on permanently installed equipment

L Line conductor on permanently installed equipment

On (mains supply)

34 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Symbol Description

Off (mains supply)

Standby (mains supply). The instrument is not completely disconnected from the mains supply
when the power switch is in the stand by position

In position of a bi-stable push switch

Out position of a bi-stable push switch

Equipment protected throughout by DOUBLE INSULATION or REINFORCED INSULATION

Caution, refer to accompanying documentation

Caution, risk of electric shock

Do not apply around or remove from HAZARDOUS LIVE conductors

Application around and removal from HAZARDOUS LIVE cond uctors is permitted

Caution, hot surface

Ionizing radiation

CAT I IEC Measurement Category I

CAT II Measurement Category II

CAT III Measurement Category III

CAT IV Measurement Category IV

Keysight U4205A Direct Connect 34-Channel Mictor Probe 35

Informations relatives à la sécurité

Les consignes de sécurité générales présentées dans cette section doivent être appliquées
au cours des différentes phases d'utilisation de cet appareil. Le non-respect de ces pré­cautions ou des avertissements et consignes d'utilisation spécifiques mentionnés dans les
manuels des produits constitue une violation des normes de sécurité relatives à la concep­tion, à la fabrication et à l'usage normal de l'instrument. Keysight Technologies ne saurait
être tenu responsable du non-respect de ces consignes. Les manuels des produits sont
fournis avec votre instrument sur CD-ROM et/ou en version papier. Les versions papier des
manuels sont en option pour de nombreux produits. Certains manuels sont également di­sponibles en ligne. Pour y accéder, allez sur le site www.keysight.com et saisissez la
référence de votre produit dans le champ Rechercher qui se trouve en haut de la page.

Généralités Utilisez ce produit uniquement dans le cadre prévu par le fabricant. Si vous ne respectez

pas les instructions d'utilisation, les fonctions de sécurité du produit risquent d'être in­hibées.

Avant la mise sous tension Vérifiez que vous avez bien respecté toutes les consignes de sécurité. Faites tous les

branchements au niveau de l'appareil avant de mettre ce dernier sous tension. Tenez
compte des marquages externes à l'instrument décrits à la section «Symboles de sécurité».

Mise à la terre de

l'instrument

Si une prise de mise à la terre est fournie avec le produit, le châssis et le capot de l'instru­ment doivent être reliés à la terre afin de limiter les risques d'électrocution. Le contact à
la terre doit être solidement connecté à une borne de terre (de sécurité) au niveau de la
prise de courant . Toute interruption du conducteur de protection (mise à la terre) ou tout
débranchement de la borne de terre de protection donne lieu à un risque d'électrocution
pouvant entraîner des blessures graves.

Fusibles Pour obtenir des instructions sur le changement des fusibles de ligne, consultez le guide

de l'utilisateur ou le manuel d'instructions. Certains instruments comportent un fusible in­terne inaccessible à l'utilisateur.

Ne pas utiliser en

N'utilisez pas l'instrument en présence de gaz ou de vapeurs inflammables.

atmosphère explosive

Ne pas démonter le capot

de l'instrument

Seules des personnes qualifiées, formées à la maintenance et conscientes des risques
d'électrocution encourus sont autorisées à démonter les capots de l'instrument. Débran­chez toujours le cordon d'alimentation secteur et tous les circuits externes avant de
démonter le capot de l'instrument.

Nettoyage Nettoyez la partie externe de l'instrument à l'aide d'un chiffon doux et non pelucheux,

légèrement humidifié. N'utilisez pas de détergents ou de solvants chimiques.

Ne pas modifier

l'instrument

N'installez pas de composants de remplacement et n'apportez aucune modification non
autorisée à l'appareil. Pour toute opération de maintenance ou de réparation, renvoyez
l'appareil à un bureau de vente et de service après-vente keysight, afin d'être certain que
les fonctions de sécurité seront maintenues.

En cas de dommages Les instruments endommagés ou défectueux doivent être désactivés et protégés contre

toute utilisation involontaire jusqu'à ce qu'ils aient été réparés par une personne qualifiée.

36 Keysight U4205A Direct Connect 34-Channel Mictor Probe

La mention ATTENTION indique un risque. Si la manoeuvre ou le procédé correspondant
n'est pas exécuté correctement, il peut y avoir un risque de dommages à l'appareil ou de
perte de données importantes. En présence de la mention ATTENTION, il convient de
s'interrompre tant que les conditions indiquées n'ont pas été parfaitement comprises et
respectées.

La mention AVERTISSEMENT signale un danger pour la sécurité de l'opérateur. Si la
manœuvre ou le procédé correspondant n'est pas exécuté correctement, il peut y avoir
un risque pour la santé des personnes. En présence d'une mention AVERTISSEMENT, il
convient de s'interrompre tant que les conditions indiquées n'ont pas été parfaitement
comprises et respectées.

Symboles de sécurité:

Symboles Description

Courant continu.

Courant alternatif.

Courant continu et alternatif.

Courant alternative triphasé.

Borne de terre (masse).

Borne de terre de protection.

Borne de terre reliée au cadre ou au châssis.

Borne au potentiel de la terre.

Equipotentialité

Keysight U4205A Direct Connect 34-Channel Mictor Probe 37

Symboles Description

N Conducteur neutre sur un équipement installé à demeure

L Conducteur de phase sur un équipement installé à demeure.

Alimentation en marche.

Alimentation à l'arrêt.

Alimentation en mode veille. Lorsque l'interrupteur est en mode veille, l'unité n'est pas
complètement déconnectée de l'alimentation secteur.

Position Marche d'un interrupteur par bouton poussoir bi-stable.

Position Arrêt d'un interrupteur par bouton poussoir bi-stable.

Appareil entièrement protégé par DOUBLE ISOLATION ou ISOLATION RENFORCÉE

Attention. Consultez la documentation fournie.

Attention, danger d'électrocution.

Ne pas appliquer ou enlever sur des conducteurs SOUS TENSION DANGEREUSE

Application ou retrait autorisés sur les conducteurs SOUS TENSION DANGEREUSE

Attention, surface chaude

Rayonnement ionisant

CAT I Appareil de mesure de catégorie I selon la norme CEI applicable

38 Keysight U4205A Direct Connect 34-Channel Mictor Probe

Symboles Description

CAT II Appareil de mesure de catégorie II selon la norme CEI applicable

CAT III Appareil de mesure de catégorie III selon la norme CEI appl icable

CAT IV Appareil de mesure de catégorie IV selon la norme CEI applicable

Keysight U4205A Direct Connect 34-Channel Mictor Probe 39

40 Keysight U4205A Direct Connect 34-Channel Mictor Probe