Keysight U1271A Manuale utente

Keysight U1271A/U1272A

Handheld Digital

Multimeter

Quick Start

Guide

Contacting Keysight

www.keysight.com/find/assist

(worldwide contact information for

repair and service)

Safety and EMC Information

The U1271A/U1272A is

safety-certified in compliance with

EN/IEC 61010-1, EN/IEC

61010-2-033, CAN/CSA-C22.2

No.61010-1-12, CAN/CSA-C22.2

No.61010-2-033-12,ANSI/UL Std.

No. 61010-1, ANSI/UL Std. No.

61010-2-033, CAT III 1000 V,

CAT IV 600 V for pollution degree

2 environment.

EMC is designed in compliance

with EN 61326-1.

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 this manual for

specific Warning or Caution

information)

2 Keysight U1271A/U1272A Quick Start Guide

For further safety information details, refer to the

Keysight U1271A/U1272A Handheld Digital Multimeter User’s Guide.

ENGLISH

Keysight U1271A/U1272A Quick Start Guide 3

ENGLISH

Verify that you received the following items in the

shipment of your multimeter:

4One pair of red and black test leads

4One pair of 4 mm test probes

4One K-type thermocouple lead kit

4Four 1.5 V AAA alkaline batteries

4Printed copy of the U1271A/U1272A Quick

Start Guide

4Printed copy of the Certificate of Calibration

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 U1271A and U1272A Handheld Digital

Multimeters.

The model U1272A appears in all illustrations.

All related documents and software are available for

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

Keysight U1271A/U1272A Handheld Digital

Multimeter Quick Start Guide

4 Keysight U1271A/U1272A Quick Start Guide

ENGLISH

Differences between the U1271A and U1272A

The U1272A model offers these additional

functions:

–Z

LOW (low input impedance) measurements

– Smart Ωmeasurements

–Auto-diodetests

– AC+DC voltage and current measurements

– J-type thermocouple temperature

measurements

– 30 Ωand 300 MΩranges for resistance

measurements

– dBm and dBV measurements with selectable

impedance

– Data logging up to 10,000 memories

The U1271A model has one differing function:

– Qik-V tests

Install the Batteries

Your multimeter is powered by four 1.5 V AAA

alkaline batteries (included with the shipment).

1Turn the rotary switch to OFF

and remove the test leads

from the terminals.

2Lift the tilt stand and loosen

the screws with a suitable

Phillips screwdriver.

3Remove the battery cover and observe the

polarity markings.

4Insert the batteries and replace the battery

cover and screws.

Keysight U1271A/U1272A Quick Start Guide 5

ENGLISH

Turn On the Multimeter

To power ON your multimeter, turn the rotary

switch to any other position.

The Multimeter at a Glance

NOTE

Your multimeter is capable of remote data logging.

To use this feature, you will need an IR-USB cable

(U1173A, purchased separately) and the Keysight

GUI Data Logger Software (downloadable from

www.keysight.com/find/hhTechLib).

Display screen

Keypad

Rotary switch

Input terminals

6 Keysight U1271A/U1272A Quick Start Guide

ENGLISH

Understanding the Rotary Switch

Test lead/probe holders

IR communication port

Battery access cover

Tilt stand

U1271A U1272A

NOTE

Press to switch between the shifted and

regular functions.

Shift

View

Esc

Keysight U1271A/U1272A Quick Start Guide 7

ENGLISH

Legend Description

AC V with Low Pass Filter

AC mV with Low Pass Filter

DC, (AC, or AC+DC V, U1272A only)

DC, (AC, or AC+DC mV, U1272A only)

Resistance/Continuity/(Smart Ω, U1272A only)

Diode/(Auto-diode, U1272A only)

Capacitance/Temperature

AC, DC, or (AC+DC mA and A, U1272A only)

AC, DC, or (AC+DC μA, U1272A only)

AC/DC V check for signal identification (U1271A only)

ZLOW (low input impedance) AC/DC V for checking ghost voltages

(U1272A only)

Smart

Auto

8 Keysight U1271A/U1272A Quick Start Guide

ENGLISH

Understanding the Keypad

Legend Key response when pressed for:

Less than 1 second More than 1 second

Sets the Null/Relative mode. Sets the Scale mode for the

specified ratio and unit display.

Starts and stops the MaxMin

recording.

Starts and stops the Peak

recording.

Freezes the present reading in

the display.

Automatically freezes the present

reading once the reading is

stable.

Switches between available

dual-combination displays.

Exits the Hold, Null, MaxMin,

Peak, frequency test, and dual

display modes.

Turns the backlight on/off. Enters/Exits the multimeter’s

setup menu.

Switches between frequency,

pulse width, and duty cycle

measurements.

Starts and stops the Data

Logging.

Sets a manual range. Enables autoranging.

Switches between the regular

and shifted (icons printed in

orange) functions.

Enters the Log Review menu.

Scale

Null

Peak

MaxMin

Auto

TrigHold

Exit

Dual

Setup

Hz%ms

Log

Auto

Range

Shift

View

Esc

Keysight U1271A/U1272A Quick Start Guide 9

ENGLISH

Understanding the Input Terminals

WARNING

Ensure that the terminal connections are correct for

that particular measurement function before starting

any measurement. To avoid damage to the device, do

not exceed the input limit.

Rotary position Input terminals Overload protection

1000 Vrms

1000 Vrms for short

circuit <0.3 A

11 A/1000 V, 30 kA

fast-acting fuse

440 mA/1000 V, 30 kA

fast-acting fuse

Smart

Auto

10 Keysight U1271A/U1272A Quick Start Guide

ENGLISH

Performing Measurements and Tests

Voltage measurements

The figure below highlights the primary functions

allowing voltage measurements in your

multimeter.

Set up your multimeter as shown in the figure

below to perform voltage measurements. When

measuring DC voltage from a mixed signal in DC

measurement mode, ensure that the Filter ( ) is

enabled.

U1271A U1272A

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