Keysight InfiniiMax III+ N7000 User manual

Keysight N7000/1/2/3A
InfiniiMax III+ Probes
Handling
Guide

2 N7000/1/2/3A InfiniiMax III+ Handling Guide
Notices
© Keysight Technologies, Inc. 2015
No part of this manual may be reproduced in
any form or by any means (including elec-
tronic storage and retrieval or translation into
a foreign language) without prior agreement
and written consent from Keysight Technolo-
gies, Inc. as governed by United States and
international copyright laws.
Manual Part Number
N7000-97000
Edition
First Edition, February 2015
Printed in USA
Published by:
Keysight Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA, 95403
Warranty
The material contained in this document is
provided “as is,” and is subject to being
changed, without notice, in future editions.
Further, to the maximum extent permitted
by applicable law, Keysight disclaims all
warranties, either express or implied, with
regard to this manual and any information
contained herein, includ ing but not limited
to the implied warranties of merchantability
and fitness for a particular purpose. Key-
sight shall not be liable for errors or for inci-
dental or consequential damages in
connection with the furnishing, use, or per-
formance of this document or of any infor-
mation contained herein. Should Keysight
and the user have a separate written agree-
ment with warranty terms covering the
material in this document that conflict with
these terms, the warranty terms in the sepa-
rate agreement shall control.
Technology Licenses
The hardware and/or software described in
this document are furnished under a license
and may be used or copied only in accor-
dance with the terms of such license.
Restricted Rights Legend
If software is for use in the performance of a
U.S. Government prime contract or subcon-
tract, Software is delivered and licensed as
“Commercial computer software” as defined
in DFAR 252.227-7014 (June 1995), or as a
“commercial item” as defined in FAR 2.101(a)
or as “Restricted computer software” as
defined in FAR 52.227-19 (June 1987) or any
equivalent agency regulation or contract
clause. Use, duplication or disclosure of
Software is subject to Keysight Technologies’
standard commercial license terms, and
non-DOD Departments and Agencies of the
U.S. Government will receive no greater than
Restricted Rights as defined in FAR
52.227-19(c)(1-2) (June 1987). U.S. Govern-
ment users will receive no greater than Lim-
ited Rights as defined in FAR 52.227-14
(June 1987) or DFAR 252.227-7015 (b)(2)
(November 1995), as applicable in any tech-
nical data.
Safety Notices
CAUTION
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.
WARNING
A WARNING notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the like
that, if not correctly performed or
adhered to, could resul t in personal
injury or death. Do not proceed
beyond a WARNING notice until the
indicated conditions are fully
understood and met.

3
Keysight 7000/1/2/3A InfiniiMax III+
Handling Guide
Proper Handling Techniques
Use a Static-Safe Work Station 4
Safely Connecting the Probe to an Oscilloscope 6
Safely Disconnecting the Probe from an Oscilloscope 8
Probing a DUT 9
Soldering Tips 13
In this guide, you’ll learn how to properly handle the probe to prevent damage and
maintain high performance. For more safe-handling information, go to
www.keysight.com and search for InfiniiMax III ESD Best Practices demo video.
CAUTION
InfiniiMax I and II probe heads cannot be used with Infiniimax III+ probe amplifiers and
InfiniiMax III+ probe heads cannot be used with InfiniiMax I and II amplifiers.

4 N7000/1/2/3A InfiniiMax III+ Handling Guide
Use a Static-Safe Work Station
Use a Static-Safe Work Station
InfiniiMax probes and accessories are ESD sensitive devices and should be treated
with care. Before using or handling the probe or accessories, always wear a
grounded ESD wrist strap and ensure that cables and probe heads are discharged
before being connected. All work, including connecting probe amplifiers to the
oscilloscope, should be performed at a static-safe work station as shown in
Figure 1.
Figure 1 Static-Safe Work Station
Many scopes including Keysight’s 90000X series have a front-panel ground
socket. You can plug the wrist strap into the ground socket as seen in the
following picture.
CAUTION
Electrostatic discharge (ESD) can quickly and imperceptibly damage or destroy
high-performance probes, resulting in costly repairs. Always wear a wrist strap when
handling probe components.

Use a Static-Safe Work Station
N7000/1/2/3A InfiniiMax III+ Handling Guide 5
Figure 2 Wrist Strap Connected to Oscilloscope Ground Socket
The static-safe work station shown in Figure 1 uses two types of ESD protection:
• Conductive table-mat and wrist-strap combination.
• Conductive floor-mat and heel-strap combination.
Both types, when used together, provide a significant level of ESD protection. Of
the two, only the table-mat and wrist-strap combination provides adequate ESD
protection when used alone. To ensure user safety, the static-safe accessories
must provide at least 1 MΩof isolation from ground. Purchase acceptable ESD
accessories from your local supplier.
WARNING
These techniques for a static-safe work station should not be used when working on
circuitry with a voltage potential greater than 500 volts.

6 N7000/1/2/3A InfiniiMax III+ Handling Guide
Safely Connecting the Probe to an Oscilloscope
Safely Connecting the Probe to an Oscilloscope
To protect against ESD damage, always use the four steps shown in Figure 4 on
page 7 when connecting your probe to the oscilloscope.
To connect a probe head to the probe amplifier, push the connections straight in.
Figure 3 Disconnecting the Probe Head From the Amplifier
CAUTION
Avoid damaging the probe amplifier connection pins. As shown in Figure 3, never bend
the probe head in order to “pop” it loose from the amplifier. Do not wiggle the probe head
up and down or twist it to remove the connectors from the sockets.
CAUTION
Never allow the probe head to be connected to the probe amplifier, if the probe amplifier
is not connected to the oscilloscope channel.
CAUTION
Always disconnect an N2836A or N5441A solder-in probe head from the probe amplifier
before un-soldering, moving to a new position, and re-soldering the head.

Safely Connecting the Probe to an Oscilloscope
N7000/1/2/3A InfiniiMax III+ Handling Guide 7
Figure 4 Connecting the Probe to the Oscilloscope

8 N7000/1/2/3A InfiniiMax III+ Handling Guide
Safely Disconnecting the Probe from an Oscilloscope
Safely Disconnecting the Probe from an Oscilloscope
Always disconnect the probe head from the probe amplifier before:
• disconnecting the probe amplifier from the oscilloscope.
• moving the probe amplifier from one oscilloscope channel to another.
Figure 5 Probe Improperly Disconnected from Oscilloscope While Probe Head is Con-
nected to the Probe Amplifier
CAUTION
Never allow the probe head to be connected to the probe amplifier, if the probe amplifier
is not connected to the oscilloscope channel.

Probing a DUT
N7000/1/2/3A InfiniiMax III+ Handling Guide 9
Probing a DUT
The probe has been designed to withstand a moderate amount of physical and
electrical stress. However, with an active probe, the technologies necessary to
achieve high performance do not allow the probe to be unbreakable. Treat the
probe with care. It can be damaged if excessive force is applied to the probe tip.
This damage is considered to be abuse and will void the warranty when verified by
Keysight Technologies service professionals.
When the probe amplifier is not in use, store it in the probe case. Coil the probe
cable with these tips in mind:
• Keep the coil’s radius fairly large so as not to induce kinking or bending. Use a
similar technique as when coiling an extension cord.
• Avoid twisting the cable when coiling by introducing a very slight twist with
each coil. This allows the cable rotations to lie flat against each other and will
eliminate the net twisting of the cable in the end.
CAUTION
Probes are sensitive devices and should be treated with care. Do not bend or kink the
probe amplifier cable. Do not drop heavy objects on the probe, drop the probe from large
heights, spill liquids on the probe, etc. Any of these examples can significantly degrade
the performance of the probe.
CAUTION
Do not replace or repair the N2849A QuickTip’s resistor or ground leads. Attempting to do
so will damage the ability of the tip to mate with the N2848A probe head.
CAUTION
Always mechanically strain-relieve the N2848A QuickTip head and N5439A ZIF head
before using to protect both your probe accessories and DUT from damage.
CAUTION
Using the N2787A 3D probe positioner with the N5445A browser probe head reduces the
chance of breaking the browser tips and ensures that the tips maintain solid contact.

10 N7000/1/2/3A InfiniiMax III+ Handling Guide
Probing a DUT
Moving the Probe to Different Locations
When making your measurements, you’ll often need to probe different locations
on the DUT. You can safely move any of the following three probe heads without
having to first break the amplifier-to-head connection:
• N5445A differential browser head
• N5439A ZIF head,
• N5444A 2.92 mm/3.5 mm/SMA head.
The only exception is when the DUT is not grounded to the oscilloscope via the AC
mains ground. In this case, connect the DUT ground to the oscilloscope ground
before moving the probe. An example of a device having a floating ground would
be a battery-powered DUT.
Strain Relieving the Probe Heads
High-performance probes have small physical geometries to ensure the lowest
possible loading and best electrical response. Because of their small size, probing
accessories are often delicate. It is important to mechanically secure your probes
to protect both your equipment and designs from damage. Although tack putty
and low-temperature hot glue are recommended, you can also use other methods
such as tape or hook-and-loop strain relief. Keep in mind that different
accessories have different cable stiffness. You should choose a strain relief method
appropriate for the cable stiffness. For instance, it is best to secure the stiffer
N5439A near the SMP connectors and form the cable to the optimal location.
Tack-Putty
Keysight recommends the use of tack putty for securing both probe heads and
amplifiers. Tack putty can be ordered using part number N5439-65201. Wrap a
small amount of tack-putty around your probe head cables, taking care to not
pinch them. The mass can then be secured to a rigid body neat your DUT.
CAUTION
Always disconnect an N2836A or N5441A solder-in probe head from the probe amplifier
before un-soldering, moving to a new position, and re-soldering the head. This is needed
as some soldering-iron tips can hold a charge which can damage the probe amplifier.
CAUTION
Do not kink cables. Do not crush cables. Do not use aggressive adhesives or high
temperatures.