Keysight U1273a Bedienungsanleitung

Keysight U1273A/

U1273AX Handheld

Digital Multimeter

Quick Start

Guide

2 Keysight U1273A/U1273AX 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 EN/IEC

61010-1:2001, ANSI/UL

61010-1:2004, and CAN/

CSA-C22.2 No. 61010-1-04 for

CAT III 1000 V/CAT IV 600 V

pollution degree 2 environment.

EMC is designed in compliance

with IEC 61326-1:2005/EN

61326-1:2006. 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 this manual for

specific Warning or Caution

information)

Category III 1000 V

overvoltage protection

Category IV 600 V

overvoltage protection

CAT III

1000 V

CAT IV

600 V

2 Keysight U1273A/U1273AX Quick Start Guide

For further safety information details, refer to the

Keysight U1273A/U1273AX Handheld Digital Multimeter User’s Guide.

Keysight U1273A/U1273AX Quick Start Guide 3

Table of Contents

Install the Batteries . . . . . . . . . . . . . . . . . . . . . . 6

Turn On the Multimeter . . . . . . . . . . . . . . . . . . . 6

The Multimeter at a Glance . . . . . . . . . . . . . . . 8

Understanding the Rotary Switch . . . . . . . . . . . 9

Understanding the Keypad . . . . . . . . . . . . . . . 10

Understanding the Input Terminals . . . . . . . . 11

Performing Measurements and Tests . . . . . . . 12

Voltage measurements . . . . . . . . . . . . . . . . . . . . . .12

Resistance measurements . . . . . . . . . . . . . . . . . . .15

Continuity tests . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Diode tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Capacitance measurements . . . . . . . . . . . . . . . . . .19

Temperature measurements . . . . . . . . . . . . . . . . . .20

Current measurements . . . . . . . . . . . . . . . . . . . . . .21

Check the Fuse . . . . . . . . . . . . . . . . . . . . . . . . 22

4 Keysight U1273A/U1273AX Quick Start Guide

THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Keysight U1273A/U1273AX Quick Start Guide 5

Verify that you received the following items in the

shipment of your multimeter:

✔One pair of red and black test leads

✔One pair of 4 mm test probes

✔One K-type thermocouple lead kit

✔Four 1.5 V AAA alkaline batteries (for U1273A)

or lithium batteries (for U1273AX)

✔Printed copies of the Certificate of Calibration

(CoC) and the U1273A/U1273AX Quick Start

Guide (this manual)

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 U1273A/U1273AX handheld digital

multimeter.

All related documents and software are available for

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

6 Keysight U1273A/U1273AX Quick Start Guide

Install the Batteries

Your multimeter is powered by four 1.5 V AAA

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.

Turn On the Multimeter

To power ON your multimeter, turn the rotary

switch from the OFF position to any other

position.

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).

Keysight U1273A/U1273AX Quick Start Guide 7

Auto Dim

By default, the multimeter’s Auto Dim function is

enabled. The multimeter’s backlight will dim

automatically after 90 seconds of inactivity. Press

any button to cancel this effect and reset the Auto

Dim timer.

You may change how the multimeter’s backlight

behavior through the Setup menu. Refer to the

User’s Guide for further instructions.

8 Keysight U1273A/U1273AX Quick Start Guide

The Multimeter at a Glance

Display screen

Keypad

Rotary switch

Input terminals

Test lead/probe holders

IR communication port

Battery cover

Tilt stand

(Lift tilt stand for access)

Keysight U1273A/U1273AX Quick Start Guide 9

Understanding the Rotary Switch

NOTE

Press to switch between the primary and

shifted functions shown on the rotary switch.

Shift

View

Esc

Legend Description

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

voltages

Off

AC V

AC V with Low Pass Filter

AC mV

AC mV with Low Pass Filter

DC V

AC V or AC+DC V

DC mV

AC mV or AC+DC mV

Resistance

Continuity or Smart Ω(offset compensation)

Diode

Auto-diode

Capacitance

Temperature

DC mA (or A)

AC mA (or A) or AC+DC mA (or A)

DC μA

AC μAor AC+DC μA

LOW

Smart

Auto

10 Keysight U1273A/U1273AX Quick Start Guide

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 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.

Increases the OLED brightness

incrementally when LOW,

MEDIUM, or HIGH setting is

selected.

Enters and 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 and

disables autoranging. Enables auto-ranging.

Switches between the primary

and shifted functions.

Enters and exits the Log

Review menu.

Scale

Null

Peak

MaxMin

Auto

TrigHold

Exit

Dual

Setup

Hz%ms

Log

Auto

Range

Shift

View

Esc

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