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Agilent U1461A Insulation
Multimeter/U1453A
Insulation Tester
Quick Start Guide
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
U1117A IR to Bluetooth adapter
Printed copy of the U1117A Operating Instructions
Printed copy of the U1461A/U1453A Quick Start Guide
(this document)
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 Agilent Sales Office.
NO TE
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.agilent.com/find/hhTechLib.
Agilent Technologies
U1461A Insulation Multimeter/U1453A Insulation Tester
Install or Change the Batteries
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.
1 2
3 4
Turn On the Tester
Turn the rotary switch
from the position
to any other position
to begin making
measurements.
2 U1461A/U1453A Quick Start Guide
U1461A Insulation Multimeter/U1453A Insulation Tester
The Tester at a Glance
The Tester at a Glance
Vsense/Red LED indicator
(Vsense for model U1461A)
Display screen
Keypad
Rotary switch
Input terminals
IR communication port
Test lead/probe holders
Battery access
(Under the orange rubber holster)
Tilt stand
Fuse access
(Under the orange rubber holster)
U1461A/U1453A Quick Start Guide 3
U1461A Insulation Multimeter/U1453A Insulation Tester
Using the Rotary Switch
Using the Rotary Switch
NO TE
Press [T DAR PI] to select the alternate measurement func-
tion(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 (A mA), DC A mA, AC A mA -
WA RN ING
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.
4 U1461A/U1453A Quick Start Guide
U1461A Insulation Multimeter/U1453A Insulation Tester
Using the Keypad
Using the Keypad
Key response when pressed for:
Legend
Less than 1 second More than 1 second
IR Test: Initiates an insulation test[1] 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[2] as long
as [Test] is held ( is shown)
Auto Hold: Automatically
Trig Hold: Freezes the present freezes the present read-
reading in the display[3] ing once the reading is
stable[3]
Lock: Locks the insulation test
or earth-bond resistance test[4]
Hz: Displays the frequency
(when the rotary switch is in View: Enters the Log
the V, mV (U1461A), or review menu
A mA (U1461A) position)
Esc: Discards the changes
made in the Setup menu
Selects the alternate measure-
ment function(s)
T: Configures the tester for a
timed test[4][5]
DAR: Configures the tester for Log: Starts the data Log
a dielectric absorption ratio
test[1][5]
PI: Configures the tester for a
polarization index test[1][5]
Limit: Enables Limit compari-
son
Max Min: Enables Max
Trip: Configures the tester for Min recording[6]
Leakage Current, Scan, or
Ramp Trip tests[4][5]
Range: Sets a manual range
Auto: Enables autorang-
Leak: Displays the leakage cur- ing
rent[4]
U1461A/U1453A Quick Start Guide 5
U1461A Insulation Multimeter/U1453A Insulation Tester
Using the Input Terminals
Key response when pressed for:
Legend
Less than 1 second More than 1 second
Vsense (U1461A):
Null: Enables Null Enables the non-contact
voltage detector
: Increases or decreases the
OLED brightness -- this option Setup: Enters the Setup
must first be enabled in the menu
Setup
[1] When the rotary switch is in one of the
Mega position.
[2] When the rotary switch is in the
EB position.
[3] When the rotary switch is NOT in one of the
Mega or the EB position.
[4] When the rotary switch is in one of the
Mega or the EB position.
[5] Press [Test] to start the test.
[6] Max Min is disabled when Trip is enabled.
Using the Input Terminals
WA RN ING
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
6 U1461A/U1453A Quick Start Guide
U1461A Insulation Multimeter/U1453A Insulation Tester
Insulation Resistance (IR) Test
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.
CAU TI O N
DO NOT perform insulation resistance test in distribution sys-
tems with voltages higher than 600 V.
Select a
test voltage 3
2
1
Remote
Switch
Probe
U1461A/U1453A Quick Start Guide 7
U1461A Insulation Multimeter/U1453A Insulation Tester
Insulation Resistance (IR) Test
4 Hold
Test will continue until
[Test] is released.
NO TE
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).
Using the Remote Switch Probe
=
Locking the Test for IR/EBR Tests
1
2 Press once
Press [Test] or [Lock]
again to unlock and
stop the test.
8 U1461A/U1453A Quick Start Guide
U1461A Insulation Multimeter/U1453A Insulation Tester
Insulation Resistance (IR) Test
Performing PI/DAR/T for IR Tests
1
2
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)
NO TE
Error is shown on the display if the IR is greater than the maxi-
mum range or less than 0.001 M after t1/t15/t30; if the test
is interrupted by the user; or if the tester's battery is low.
Viewing Leakage Current
U1461A/U1453A Quick Start Guide 9
U1461A Insulation Multimeter/U1453A Insulation Tester
Insulation Resistance (IR) Test
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
2
1
3
4
NO TE
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.
10 U1461A/U1453A Quick Start Guide
U1461A Insulation Multimeter/U1453A Insulation Tester
Earth-Bond Resistance (EBR) Test
Earth-Bond Resistance (EBR) Test
CAU TI O N
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. Discon-
nect the tester and remove power before proceeding.
3
2
1 Remote
Switch
Probe
4
Hold
OR >
U1461A/U1453A Quick Start Guide 11
U1461A Insulation Multimeter/U1453A Insulation Tester
Voltage Measurement
Voltage Measurement
The Auto function is able to automatically