Keysight U1461A User manual

Keysight U1461A
Insulation Multimeter/
U1453A Insulation
Tester
Quick Start
Guide

Contacting Keysight
www.keysight.com/find/assist
(worldwide contact information for
repair and service)
Safety and EMC Information
T his meter is safety-certified in
compliance with IEC/EN 61010-1,
IEC/EN 61010-2-030, IEC/EN
61010-2-033, CAN/CSA-C22.2 No.
61010-1, CAN/CSA-C22.2 No.
61010-2-030, CAN/CSA-C22.2 No.
61010-2-033, UL Std. No.
61010-1, UL Std. No. 61010-2-030
and UL Std. No. 61010-2-033.
EMC designed in compliance with
IEC 61326-1/EN 61326-1,
CISPR11/EN55011 Group 1 Class
A, ICES/NMB-001, and AS/NZS
CISPR 11. Use with standard or
compatible test probes.
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
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
Earth (ground) terminal
Equipment protected
throughout by double
insulation or reinforced
insulation
Caution, risk of electric
shock
Caution, risk of danger
(refer to the instrument
manual for specific
Warning or Caution
information)
Category III 1000 V
overvoltage protection
Category IV 600 V
overvoltage protection
Do not use in distribution
systems with voltages
higher than 600 V
CAT III
1000 V
CAT IV
600 V
2 U1461A/U1453A Quick Start Guide
For further safety information details, refer to the Keysight U1461A Insulation
Multimeter/U1453A Insulation Tester User’s Guide.
ENGLISH

U1461A/U1453A Quick Start Guide 3
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Standard Accessories Included In Your
Purchase
The following accessories are shipped standard
with the U1461A and U1453A testers:
✔Hard carrying case
✔Alligator clips (red and black)
✔Test leads (red and black)
✔19 mm probes (red and black)
✔4 mm probes (red and black)
✔Remote switch probe and adapter
✔Four 1.5 V AA lithium batteries
✔IR to USB cable
✔Certificate of Calibration
Model U1461A also includes the following
accessories:
✔Thermocouple adapter (J/K-Type)
✔Thermocouple bead (J-Type)
✔Thermocouple bead (K-Type)
If any item is missing or damaged, keep the
shipping materials and contact the nearest
Keysight Sales Office.
NOTE
The descriptions and instructions in this guide apply
to the U1461A Insulation Multimeter and U1453A
Insulation Tester.
Model U1461A appears in all illustrations. The word
tester is used to represent both models.
All related documents and software are available for
download at www.keysight.com/find/hhTechLib.

4 U1461A/U1453A Quick Start Guide
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Install or Change the Batteries
The tester is powered by four 1.5 V AA lithium
batteries (included in the shipment).
Before installing or changing the batteries, pull
from a corner and stretch the orange rubber
holster to remove it.
Turn On the Tester
Turn the rotary
switch from the
position to
any other position
to begin making
measurements.
1 2
3 4

U1461A/U1453A Quick Start Guide 5
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The Tester at a Glance
Vsense/Red LED indicator
Keypad
Rotary switch
Fuse access
Tilt stand
Display screen
Input terminals
Test lead/probe holders
IR communication port
(Vsense for model U1461A)
(Under the orange rubber
Battery access
(Under the orange rubber
holster)
holster)

6 U1461A/U1453A Quick Start Guide
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Using the Rotary Switch
NOTE
Press [T DAR PI]to select the alternate
measurement function(s) or test methods for
insulation resistance tests.
Legend Measurement function U1461A U1453A
50 V insulation resistance, T, DAR, PI ✔✔
100 V insulation resistance, T, DAR, PI ✔✔
250 V insulation resistance, T, DAR, PI ✔✔
500 V insulation resistance, T, DAR, PI ✔✔
1000 V insulation resistance, T, DAR, PI ✔✔
Earth-bond resistance, T✔✔
Resistance, Continuity, Diode, Capacitance ✔✔
AC V, AC V with LPF ✔-
AC V - ✔
Auto (V), DC V, AC V ✔✔
Auto (mV), DC mV, AC mV, Temperature ✔-
Auto (μA mA), DC μA mA, AC μA mA ✔-
WARNING
Remove the test leads from the measuring source or
target before changing the rotary switch position.
Refer to the U1461A/U1453A User’s Guide for a
complete list and description of all rotary switch labels.

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Using the Keypad
Legend Key response when pressed for:
Less than 1 second More than 1 second
IR Test: Initiates an insulation test[a] as long as [Test] is
held ( is shown) — the tester sources (outputs) a high
voltage and measures insulation resistance
EBR Test: Initiates an earth-bond resistance test[b] as long
as [Test] is held ( is shown)
Trig Hold: Freezes the present
reading in the display[c]
Auto Hold: Automatically
freezes the present
reading once the reading
is stable[c]
Lock: Locks the insulation test
or earth-bond resistance
test[d]
View: Enters the Log
review menu
Hz: Displays the frequency
(when the rotary switch is in
the V, mV (U1461A), or
μA mA (U1461A) position)
Esc: Discards the changes
made in the Setup menu
Selects the alternate
measurement function(s)
Log: Starts the data Log
T: Configures the tester for a
timed test[d][e]
DAR: Configures the tester for
a dielectric absorption ratio
test[a][e]
PI: Configures the tester for a
polarization index test[a][e]
Limit: Enables Limit
comparison Max Min: Enables Max
Min recording[f]
Trip: Configures the tester for
Leakage Current, Scan, or
Ramp Trip tests[d][e]

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Using the Input Terminals
Range: Sets a manual range Auto: Enables
autoranging
Leak: Displays the leakage
current[d]
Null: Enables Null
Vsense (U1461A):
Enables the non-contact
voltage detector
:Increases or decreases the
OLED brightness — this option
must first be enabled in the
Setup
Setup: Enters the Setup
menu
[a] When the rotary switch is in one of the Ω Mega position.
[b] When the rotary switch is in the ΩEB position.
[c] When the rotary switch is NOT in one of the Ω Mega or the ΩEB position.
[d] When the rotary switch is in one of the Ω Mega or the ΩEB position.
[e] Press [Test] to start the test.
[f] Max Min is disabled when Trip is enabled.
WARNING
To avoid damaging this device, do not exceed the input
limit.
Rotary position Input terminals Overload protection
1000 Vrms
1000 Vrms for
short circuit <0.3 A
440 mA/1000 V, 30 kA
fast-acting fuse
Legend Key response when pressed for:
Less than 1 second More than 1 second

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Insulation Resistance (IR) Test
Ensure that the device-under-test (DUT) is
de-energized before performing any resistance
measurement.
The tester automatically detects if the circuit is
energized. If the external voltage is detected to be
greater than 30 V, the test is inhibited and the
voltage hazard symbol ( ) is shown on the
display.
CAUTION
DO NOT perform insulation resistance test in
distribution systems with voltages higher than 600 V.
3
1
2
Select a
test voltage
Remote
Switch
Probe

10 U1461A/U1453A Quick Start Guide
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Using the Remote Switch Probe
Locking the Test for IR/EBR Tests
4
Test will continue until
[Test] is released.
Hold
NOTE
When an insulation test is in progress, the red LED
indicator at the top of the tester will blink every
2 seconds (if the Limit function is not enabled).
=
2
1
Press [Test] or
[Lock] again to
unlock and stop
the test.
Press once

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Performing PI/DAR/T for IR Tests
Polarization Index (PI) = IR 10 minutes/IR 1 minute
Dielectric Absorption Ratio (DAR) = IR 60 seconds/
IR 30 seconds (default; can be changed to IR 60
seconds/IR 15 seconds in Setup)
Timed (T) for IR and EBR = IR 1 minute (default;
can be changed in Setup)
Viewing Leakage Current
2
1
NOTE
Error is shown on the display if the IR is greater
than the maximum range or less than 0.001 MΩ
after t1/t15/t30; if the test is interrupted by the
user; or if the tester’s battery is low.

12 U1461A/U1453A Quick Start Guide
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Performing Leakage Current/Scan/Ramp Trip
Tests
Use the Leakage Current Trip Test, Scan Trip Test,
and Ramp Trip Test to test MOVs (Metal Oxide
Varistors), gas discharge tubes, voltage arresters,
or sparking gaps.
The voltage source will be stopped when the
current is greater than the trip current you set in
the Setup.
1
12
3
4
NOTE
For more information on the Leakage Current Trip
Test, Scan Trip Test, and Ramp Trip Test, refer to
the respective sections in the U1461A/U1453A
User’s Guide.

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Earth-Bond Resistance (EBR) Test
CAUTION
The tester automatically detects if the circuit is
energized. If the external voltage is detected to be
greater than 2 V, the test is inhibited and
is shown on the display. Disconnect the tester and
remove power before proceeding.
4
>
Hold
OR
3
1
2
Remote
Switch
Probe

14 U1461A/U1453A Quick Start Guide
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Voltage Measurement
The Auto function is able to automatically
– identify the signal component (AC or DC) of an
electrical source to be indicated on the
primary display, and
– select a suitable measurement range
according to the AC+DC reading
The symbol blinks during the identification
DC
AC
The AC+DC value is shown in the secondary display
AC
3
DC
1
2

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Measuring AC Voltage with a Low-Pass Filter
(LPF)
1
3
AC
2
WARNING
– To avoid possible electric shock or personal injury,
ensure that you are aware of the voltage level
without the LPF enabled. There may be a possible
presence of hazardous voltage, and voltages
measured with the LPF enabled may be greater
than indicated. For your safety, take note of the
symbol. Disable the LPF when you have
finished your measurement.
– When the LPF option is selected, the measurement
function will switch to the manual range mode
(defaults to 600 V) for variable speed drive (VSD)
applications. It is recommended only to use 600 V
and 1000 V in the manual range for VSD testing.

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Enable the LPF in the Setup to filter out higher
frequencies with (AC/DC path) V, mV, μA, or mA
measurements.
>>
1
2
>>>
> 1 sec.
> 1 sec.

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Current Measurement
Refer to Voltage Measurement for more
information on how the Auto function works.
WARNING
Never attempt an in-circuit current measurement
where the open-circuit potential to earth is greater
than 1000 V.
CAUTION
– Current can be measured up to 440 mA
(maximum) continuously. You can measure
current more than 440 mA and up to 600 mA for
120 seconds maximum.
– Cool down the tester for twice the measuring
time taken before proceeding to another current
measurement.
3
2
AC
LOAD
DC
LOAD
1

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Measuring Voltage Frequency
Measuring Current Frequency
Measuring Frequency/Pulse Width/Duty Cycle
For model U1461A only. This option must first be
enabled in the Setup.
Press and hold [ ] to enter the Setup. Browse to
Menu 10 > % & ms and change the option from
+CYCLE-D to +CYCLE-E or –CYCLE-E.

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Resistance Measurement
Removing Test Lead Resistance
3
1
2
2
1

20 U1461A/U1453A Quick Start Guide
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Continuity Test
CAUTION
To avoid possible damage to your tester or to the
equipment under test, disconnect the circuit power
and discharge all high-voltage capacitors before
performing continuity tests.
3
ON
(closed)
OFF
(open)
1
2
4