Keysight Technologies U5855A User manual

Keysight U5855A
TrueIR Thermal Imager
Service
Guide

U5855A Service Guide I

II U5855A Service Guide
Notices
© Keysight Technologies 2014
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 agree-
ment and written consent from Keysight
Technologies as governed by United States
and international copyright laws.
Manual Part Number
U5855-90012
Edition
Edition 3, December 5, 2014
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
The material contained in this document is
provided “as is,” and is subject to change,
without notice, in future editions. Further,
to the maximum extent permitted by the
applicable law, Keysight disclaims all
warranties, either express or implied, with
regard to this manual and any information
contained herein, including but not limited
to the implied warranties of merchantabil-
ity and fitness for a particular purpose.
Keysight shall not be liable for errors or for
incidental or consequential damages in
connection with the furnishing, use, or
performance of this document or of any
information contained herein. Should Key-
sight and the user have a separate written
agreement with warranty terms covering
the material in this document that conflict
with these terms, the warranty terms in
the separate 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
U.S. Government Restricted Rights. Soft-
ware and technical data rights granted to
the federal government include only those
rights customarily provided to end user cus-
tomers. Keysight provides this customary
commercial license in Software and techni-
cal data pursuant to FAR 12.211 (Technical
Data) and 12.212 (Computer Software) and,
for the Department of Defense, DFARS
252.227-7015 (Technical Data - Commercial
Items) and DFARS 227.7202-3 (Rights in
Commercial Computer Software or Com-
puter Software Documentation).
Safety Notices
CAUTION
A CAUTION notice denotes a haz-
ard. It calls attention to an operat-
ing procedure, practice, or the likes
of that, if not correctly performed
or adhered to, could result in dam-
age to the product or loss of impor-
tant data. Do not proceed beyond a
CAUTION notice until the indicated
conditions are fully understood and
met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the likes of that, if not correctly
performed or adhered to, could
result in personal injury or death.
Do not proceed beyond a WARN-
ING notice until the indicated
conditions are fully understood
and met.

U5855A Service Guide III
Safety Symbols
The following symbols on the instrument and in the documentation indicate precautions
which must be taken to maintain safe operation of the instrument.
Caution, risk of danger (refer to this manual for specific Warning or Caution
information)
Laser radiation

IV U5855A Service Guide
Safety Considerations
Read the information below before using this instrument.
The following general safety precautions must be observed during all phases of operation,
service, and repair of this instrument. Failure to comply with these precautions or with
specific warnings elsewhere in this manual violates safety standards for design,
manufacture, and intended use of the instrument. Keysight Technologies assumes no
liability for the customer’s failure to comply with these requirements.
WARNING
• Do not use the device if it is damaged. Before you use the device, inspect the
casing. Look for cracks or missing plastic. Do not operate the device around
explosive gas, vapor, or dust.
•Alwaysusethedevicewith the cables provided.
• Observe all markings on the device before establishing any connection.
• Turn off the device before removing the battery cover.
• When servicing the device, use only the specified replacement parts.
• Do not operate the device with the battery cover or portions of the cover removed
or loosened.
• Use only the designated AC/DC power adapter or charger provided by the
manufacturer to avoid any unexpected hazards.
• Use only the battery pack supplied with the device. Do not disassemble/modify
the battery pack or leave it under direct heat/sunlight.
• Keep the battery pack away from water, fire, or heat.
• Avoid any contact with battery leakage to prevent personal injuries. If there is
leakage or strange smell, remove the battery pack immediately from the device or
the external battery charger.
• Do not connect the positive terminal and the negative terminal of the battery pack
(metallic part) to each other with any metal objects, such as wires.
• Do not continue to charge the battery pack if it does not become charged within
the specified charging time.
• Do not apply impact to or insert foreign objects into the battery pack.
• Do not use the camera on a tripod in an area with large vibration or shock.
• Do not use the device under water or with conductive gloves or cloths worn or in
a strong electromagnetic field.
• Do not stare into the torch light.

U5855A Service Guide V
WARNING
Laser pointer precautions:
• This laser pointer is a Class 2 laser product.
• Laser beam contact with the eyes may cause visual impairment.
• Do not point the laser beam towards people.
• Do not stare into the laser beam.
• This measuring device is intended for professional use and not suitable for
general use.
CAUTION
Use of controls or adjustments or performance of procedures other than those
specified herein may result in hazardous radiation exposure.
Video
DC 12V
Laser control key
Laser beam

VI U5855A Service Guide
CAUTION
•The device uses a highly-sensitive infrared detector. Ensure to comply with the
requirements in “Environmental Conditions" on page VII when using the device.
•Do not apply excessive stress to the LCD screen, the focus adjustment ring, or the
camera lens to avoid damages.
•Avoid direct rays or shock to the visible or infrared camera lens of the device.
•The following condition may be observed when the device acquires or saves a
visible image. This condition is not a device failure.
• The color of the visible image changes periodically or may be different from the
real target object when the image is replayed in the freeze mode.
To avoid this condition, perform image acquisitions by changing the camera angle.
In this case, it is recommended to acquire visible images by observing the image on
the screen.
•The following condition may be observed in outdoor data acquisitions. This
condition is not a device failure.
• If the contrast is great (e.g., due to backlight), the object may appear darker on
the camera display as compared to the brightness of the background.
To avoid this condition, control the frame so that it covers only the target object.
•If bright sunlight enters the visible camera, the entire picture may become reddish.
To avoid this, shield the camera from bright sunlight.
• Do not input laser beam (CO2laser, etc.) to avoid damage to the infrared detector.
CAUTION
•If the device is used in a manner not specified by the manufacturer, the device
protection may be impaired.
•Always use dry cloth to clean the device. Do not use ethyl alcohol or any other
volatile liquid to clean the device.
•Do not permit any blockage of the ventilation holes of the device.

U5855A Service Guide VII
Environmental Conditions
This instrument is designed for indoor use and in an area with low condensation. The table
below shows the general environmental requirements for this instrument.
Regulatory Information
The U5855A complies with the following safety and Electromagnetic Compatibility (EMC)
requirements:
Safety compliance
• Laser safety: IEC 60825-1:2001/EN 60825-1:2001 (Laser Class 2)
• IEC 61010-1:2010/EN 61010-1:2010
EMC compliance
• IEC 61326-1:2005/EN61326-1:2006
• CISPR11:2003/EN55011:2007, Group 1 Class A
• Canada: ICES/NMB-001: Issue 4, June 2006
• Australia/New Zealand: AS/NZS CISPR 11:2004
Environmental condition Requirement
Te m p e r at u r e
Operating condition
•–15 °C to 50 °C
Storage condition
•–40 °C to 70 °C
Humidity
Operating condition
•50% RH to 95% RH at 40 °C
Storage condition
•95% RH at 40 °C
Altitude Up to 2000 m
Pollution degree 2

VIII U5855A Service Guide
Regulatory Markings
The CE marking is a legal compliance
marking of the European Community.
This CE marking shows that the
product complies with all the relevant
European Legal Directives.
The C-tick mark is a registered
trademark of the Spectrum
Management Agency of Australia. This
signifies compliance with
the Australia EMC Framework
regulations under the terms of the
Radio Communication Act of 1992.
ICES/NMB-001 indicates that this ISM
device complies with the Canadian
ICES-001.
Cet appareil ISM est conforme a la
norme NMB-001 du Canada.
This instrument complies with the
WEEE Directive (2002/96/EC) marking
requirement. This affixed product label
indicates that you must not discard
this electrical or electronic product in
domestic household waste.
This symbol is a South Korean Class A
EMC Declaration. This is a Class A
instrument suitable for professional
use and in electromagnetic
environment outside of the home.
This symbol indicates the time period
during which no hazardous or toxic
substance elements are expected to
leak or deteriorate during normal use.
Forty years is the expected useful life
of the product.

U5855A Service Guide IX
Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC
This instrument complies with the WEEE Directive (2002/96/EC) marking requirement.
This affixed product label indicates that you must not discard this electrical or electronic
product in domestic household waste.
Product Category:
With reference to the equipment types in the WEEE directive Annex 1, this instrument is
classified as a “Monitoring and Control Instrument” product.
The affixed product label is as shown below.
Do not dispose in domestic household waste.
To return this unwanted instrument, contact your nearest Keysight Service Center, or visit
www.keysight.com/environment/product
for more information.

XU5855A Service Guide
Declaration of Conformity (DoC)
The Declaration of Conformity (DoC) for this instrument is available on the Keysight Web
site. You can search the DoC by its product model or description at the Web address below.
http://www.keysight.com/go/conformity
NOTE
If you are unable to search for the respective DoC, contact your local Keysight
representative.

U5855A Service Guide XI
Table of Contents
1 Performance Verification Test
Introduction 2
Keysight calibration services 2
Calibration interval 2
Recommended Test Equipment 3
Test Considerations 4
Performance Verification Test 5
Test setup 5
2 Service and Maintenance
General Usage and Maintenance 10
Battery Replacement 11
Battery Charging 12
Battery Handling, Operation, Storage, and Transportation 14
Battery handling 14
Battery operating and storage temperatures 14
Battery transportation regulations 15
3 Troubleshooting and Repair
Operating and Troubleshooting Hints 18
Replaceable Parts 23
To order replaceable parts 23
Returning the U5855A for Service 24
Types of Services Available 25
Calibration/adjustment 25
Repair 25
Extended service contracts 25

XII U5855A Service Guide
Obtaining Repair Service (Worldwide) 26

U5855A Service Guide XIII
List of Figures
Figure 1-1 Test setup for Range 1 and Range 2 verification 5
Figure 1-2 Black body source image 6

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U5855A Service Guide XV
List of Tables
Table 1-1 Recommended test equipment 3
Table 1-2 Range 1 = –20 °C to 120 °C, Accuracy ≤±2 °C 7
Table 1-3 Range 2 = 0 to 350 °C, Accuracy ≤±2 °C (at <100 °C), ±2% (at
<350 °C) 7
Table 2-1 Battery specifications 14
Table 3-1 Troubleshooting hints 18
Table 3-2 Error messages 22

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U5855A TrueIR Thermal Imager
Service Guide
1
Performance Verification Test
Introduction 2
Recommended Test Equipment 3
Test Considerations 4
Performance Verification Test 5
This chapter guides you to verify the performance of the U5855A.

1 Performance Verification Test
Introduction
2U5855A Service Guide
Introduction
This chapter contains procedures to verify the U5855A performance.
The performance verification test procedures allow you to verify that the
U5855A is operating within its published specifications.
Keysight calibration services
When your U5855A is due for calibration, contact your local Keysight
Service Center to inquire about calibration services.
Calibration interval
A 1- year interval is adequate for most applications. Accuracy
specifications are warranted only if adjustment is made at regular
calibration intervals. Accuracy specifications are not warranted beyond the
1- year calibration interval.
NOTE
Adjustment/calibration procedures for the U5855A are not provided as they should only be
performed by qualified Keysight personnel.