Keysight Technologies U1452A Manuale utente

Keysight U1452A/

U1452AT/U1451A

Insulation Tester

Quick Start

Guide

Contacting Keysight

www.keysight.com/find/assist

(worldwide contact information for

repair and service)

Safety and EMC Information

This 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 U1452A/U1452AT/U1451A Quick Start Guide

For further safety information details, refer to the

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

ENGLISH

U1452A/U1452AT/U1451A Quick Start Guide 3

ENGLISH

Standard accessories included in your purchase

The following accessories are shipped standard

with the U1452A, U1452AT, and U1451A 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)

✔IR to USB cable

✔Four 1.5 V AA alkaline batteries

✔Certificate of Calibration

Model U1452A also includes the following

accessories:

✔Remote switch probe and adapter

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 U1452A, U1452AT, and U1451A Insulation

Tester.

Model U1452A appears in all illustrations. The word

tester is used to represent all models.

All related documents and software are available for

download at www.keysight.com/find/hhTechLib.

4 U1452A/U1452AT/U1451A Quick Start Guide

ENGLISH

Install or Change the Batteries

The tester is powered by four 1.5 V AA alkaline

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

U1452A/U1452AT/U1451A Quick Start Guide 5

ENGLISH

The Tester at a Glance

Red LED indicator

Keypad

Rotary switch

Fuse access

Tilt stand

Display screen

Input terminals

Test lead/probe holders

IR communication port

(Under the orange rubber

Battery access

(Under the orange rubber

holster)

6 U1452A/U1452AT/U1451A Quick Start Guide

ENGLISH

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 Model

U1452A U1452AT U1451A

50 V insulation resistance test,

T, DAR, PI[a] ✔✔ -

100 V insulation resistance test,

T, DAR, PI[a] ✔✔ -

250 V insulation resistance test,

T, DAR, PI[a] ✔-✔

500 V insulation resistance test,

T, DAR, PI[a] ✔-✔

1000 V insulation resistance test,

T, DAR, PI[a] ✔-✔

Earth-bond resistance, T✔✔✔

Resistance, Continuity ✔✔✔

Capacitance ✔✔✔

Auto (V), DC V, AC V ✔✔✔

[a] DAR and PI tests for models U1452A and U1452AT only.

WARNING

Remove the test leads from the measuring source or

target before changing the rotary switch position.

Refer to the U1452A/U1452AT/U1451A User’s Guide

for a complete list and description of all rotary switch

labels.

U1452A/U1452AT/U1451A Quick Start Guide 7

ENGLISH

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 (U1452A and

U1452AT): Enters the Log

review menu

Hz: Displays the frequency

(when the rotary switch is in

the Vposition)

Esc: Discards the changes

made in the Setup menu

Selects the alternate

measurement function(s)

Log (U1452A and

U1452AT): Starts the

data Log

T/Time: Configures the tester

for a timed test[d][e]

DAR (U1452A and U1452AT):

Configures the tester for a

dielectric absorption ratio

test[a][e]

PI (U1452A and U1452AT):

Configures the tester for a

polarization index test[a][e]

Limit: Enables Limit

comparison Smooth: Enables Smooth

8 U1452A/U1452AT/U1451A Quick Start Guide

ENGLISH

Using the Input Terminals

Range: Sets a manual range

Auto: Enables

autoranging

Leak (U1452A and U1452AT):

Displays the leakage current[d]

Null: Enables Null -

:Enable or disable the LCD

backlight

Setup: Enters the Setup

[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.

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

U1452A/U1452AT/U1451A Quick Start Guide 9

ENGLISH

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.

Select a

test voltage

Remote

Switch

Probe

10 U1452A/U1452AT/U1451A Quick Start Guide

ENGLISH

Using the Remote Switch Probe

Locking the Test for IR/EBR Tests

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).

Press [Test] or

[Lock] again to

unlock and stop

the test.

Press once

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