Keysight U1452A User manual

Keysight U1452A/U1452AT/
U1451A Insulation Tester
User’s Guide
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U1452A/U1452AT/U1451A User’s Guide I

II U1452A/U1452AT/U1451A User’s 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
U1451-90003
Edition
Edition 3, December 5, 2014
Keysight Technologies
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Warranty
The material contained in this docu-
ment is provided “as is,” and is sub-
ject to being changed, without notice,
in future editions. Further, to the max-
imum extent permitted by applicable
law, Keysight disclaims all warran-
ties, either express or implied, with
regard to this manual and any infor-
mation contained herein, including
but not limited to the implied warran-
ties of merchantability and fitness for
a particular purpose. Keysight shall
not be liable for errors or for inciden-
tal or consequential damages in con-
nection with the furnishing, use, or
performance of this document or of
any information contained herein.
Should Keysight 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 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
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly per-
formed or adhered to, could result
in personal injury or death. Do not
proceed beyond a WARNING
notice until the indicated condi-
tions are fully understood and
met.

U1452A/U1452AT/U1451A User’s 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.
Direct current (DC) Caution, risk of electric shock
Alternating current (AC)
Caution, risk of danger (refer to
this manual for specific Warning
or Caution information)
Both direct and alternating
current
Category III 1000 V overvoltage
protection
Earth (ground) terminal Category IV 600 V overvoltage
protection
Equipment protected throughout
by double insulation or reinforced
insulation
Do not use in distribution systems
with voltages higher than 600 V
CAT III
1000 V
CAT IV
600 V

IV U1452A/U1452AT/U1451A User’s Guide
Safety Considerations
Read the information below before using this tester. Model U1452A appears in all
illustrations.
WARNING
• Do not use the tester if it is damaged. Before you use the tester, inspect the case.
Look for cracks or missing plastic. Pay particular attention to the insulation
surrounding the connectors.
• Inspect the test leads for damaged insulation or exposed metal. Check the test
leads for continuity. Replace damaged test leads before you use the tester.
• Do not operate the tester around explosive gas, vapor, or wet environments.
• Do not apply more than the rated voltage (as marked on the tester) between
terminals, or between terminal and earth ground.
• Before use, verify the tester's operation by measuring a known voltage.
• When servicing the tester, use only the specified replacement parts.
• Use caution when working above 60 VDC, 30 VAC RMS, or 42.4 V peak. Such
voltages pose a shock hazard.
• When using the probes, keep your fingers behind the finger guards on the probes.
• Connect the common test lead before you connect the live test lead. When you
disconnect the leads, disconnect the live test lead first.
• Remove the test leads from the tester before you open the battery cover.
• Do not operate the tester with the battery cover or portions of the cover removed
or loosened.
• To avoid false readings, which may lead to possible electric shock or personal
injury, replace the battery as soon as the low battery indicator appears and
flashes.
• Ensure that you do not perform insulation resistance tests in distribution systems
with voltages higher than 600 V.
• For insulation resistance tests, ensure that you select a suitable test voltage for
the equipment to be tested.

U1452A/U1452AT/U1451A User’s Guide V
CAUTION
•Disconnect circuit power and discharge all high-voltage capacitors before testing
resistance, continuity, or capacitance.
•Use the proper terminals, function, and range for your measurements.
•This device is for use at altitudes of up to 2,000 m.
•Always use the specified battery type. The power for the tester is supplied with four
1.5 V AA batteries. Observe the correct polarity markings before you insert the
batteries to ensure proper insertion of the batteries in the tester.
•You are advised to use low leakage batteries when changing to new batteries.
Please remember to remove the batteries when the tester is not in use for a long
period of time. Warning on the risk of battery leakage.

VI U1452A/U1452AT/U1451A User’s Guide
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.
Environmental condition Requirement
Te m p e r at u r e
• Operating condition
•–20 °C to 55 °C, 0% to 80% RH (using Alkaline batteries),
20 minutes operating time
• Storage condition
•–40 °C to 70 °C, 0% to 80% RH (without batteries)
Humidity Full accuracy up to 80% RH for temperatures up to 30 °C,
decreasing linearly to 50% RH at 55 °C
Altitude Up to 2,000 meters
Pollution degree Pollution degree II
NOTE
The U1452A/U1452AT/U1451A Insulation Tester complies with the following safety and EMC
requirements:
• Safety compliance
•Designed in compliance to IEC/EN 61010-1:2010 for Category III 1000 V and Category IV 600 V
•Designed in compliance to IEC/EN 61557-1, IEC/EN 61557-2, and IEC/EN 61557-4
• EMC compliance
•Commercial limits compliance with IEC 61326-1:2005/EN 61326-1:2006

U1452A/U1452AT/U1451A User’s Guide VII
Regulatory Markings
The CE mark is a registered trademark
of the European Community. This CE
mark 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 confomre 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.
The CSA mark is a registered
trademark of the Canadian Standards
Association.
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.

VIII U1452A/U1452AT/U1451A User’s Guide
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.