Keysight U1401B User manual

Keysight U1401B

Handheld Multi-Function

Calibrator/Meter

Quick Start

Guide

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Contacting Keysight

www.keysight.com/find/assist

(worldwide contact information for

repair and service)

Safety and EMC Information

This instrument is safety and EMC

certified in compliance with:

– IEC 61010-1:2001/

EN61010-1:2001 (2nd Edition)

– Canada: CAN/CSA-C22.2 No.

61010-1-04

– USA: ANSI/UL 61010-1:2004

– IEC61326-2-1:2005/

EN61326-2-1:2006

– Canada: ICES-001:2004

– Australia/New Zealand: AS/NZS

CISPR11:2004

Measurement Category II 150 V,

Pollution Degree 2. 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

Double insulation

Caution, risk of electric

shock

Caution, risk of danger

CAT II

150V

Category II 150 V

overvoltage protection

2 Keysight U1401B Quick Start Guide

For further safety information details, refer to the

Keysight U1401B Handheld Multi-Function Calibrator/Meter User’s Guide.

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Keysight U1401B Quick Start Guide 3

Table of Contents

Recharging the Batteries . . . . . . . . . . . . . . . . . 6

Functions and Features . . . . . . . . . . . . . . . . . . . 8

Input/Output Terminals and Overload

Protection . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Charging the battery . . . . . . . . . . . . . . . . . . . . 11

Performing Voltage Measurements . . . . . . . . 12

Performing Current Measurements . . . . . . . . 14

Performing Resistance Measurement and

Continuity Test . . . . . . . . . . . . . . . . . . . . . . . 16

Performing Temperature Measurements . . . . 18

Frequency and Frequency Counter

Measurements . . . . . . . . . . . . . . . . . . . . . . . 20

Square Wave Output . . . . . . . . . . . . . . . . . . . . 22

Tilt Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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4 Keysight U1401B Quick Start Guide

THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

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Keysight U1401B Quick Start Guide 5

The following items are included with your

multimeter:

✔Protective holster

✔Rechargeable battery pack (1.2 V NiMH AA

✔Power cord and AC power adapter

✔Silicone test leads, alligator clips, and a

yellow test lead for mA simulation

✔Certificate of calibration

✔Printed Quick Start Guide

If anything is missing or damaged, please contact

the nearest Keysight Sales Office.

NOTE

Your multimeter is capable of remote data logging.

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

(U5481A, purchased separately) and the Keysight

GUI Data Logger Software (downloadable from

www.keysight.com/find/hhTechLib).

WARNING

Ensure the terminal connections are correct for that

particular measurement selection before starting any

measurement. To avoid damage to the device, do not

exceed the input limit.

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6 Keysight U1401B Quick Start Guide

Recharging the Batteries

Charge the batteries immediately when the low

battery annunciator starts flashing. It is strongly

recommended that you use only the specified

type of 24 V AC adapter to charge these

rechargeable batteries.

1Power down the instrument and disconnect

all the test leads from the terminals.

2Plug the AC adapter into the jack on the side

panel.

3Set the slide switch at the CHARGE position.

4The red light indicates that the batteries are

being recharged.

Set slide switch at the

CHARGE position

Charging indication

Green: Fully charged

Red: Charging

External AC

adapter jack

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Keysight U1401B Quick Start Guide 7

5When the batteries have been fully recharged,

the green light turns on. Remove the AC

adapter and set the slide switch at the Mor

M/S position.

WARNING

Do not discharge a battery by shorting it or subjecting

it to reverse polarity. Do not mix different types of

battery. Make sure a battery is rechargeable before

charging it.

CAUTION

Do not turn the rotary switch while the instrument is

being recharged because a DC 24 V supply is

applied to the charging terminal.

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8 Keysight U1401B Quick Start Guide

Functions and Features

Action Steps

Selects AC, DC, or AC+DC

measurement Press

Toggles peak hold mode on and off Press and hold for > 1 s

Freezes the measured value With data hold mode enabled, press

. Press and hold for > 1 s

to exit.

Enters or exits the refresh hold mode With refresh hold mode enabled, press

Enters or exits the dynamic recording

mode Press and hold for > 1 s

Offsets the measured value Press

Selects the measurement range Press

Turns on autorange Press and hold for > 1 s

Turns on dual display Press

Turns on the frequency measurement

function Press

Enables the shifted functions of the

keypad

Press

Toggles the backlight on or off Press and hold for > 1 s

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Keysight U1401B Quick Start Guide 9

Selects output mode and range for

voltage and current output With rotary switch at or , and

with mode enabled, press

Selects parameter adjustments for

square wave output

With rotary switch at , and with

mode enabled, press

Selects a digit or the polarity to be

adjusted With mode enabled, press

Adjusts a digit or the polarity With mode enabled, press

Toggles the output state on and off With mode enabled, press

Action Steps

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10 Keysight U1401B Quick Start Guide

Input/Output Terminals and Overload

Protection

The output terminals are protected with DC 30 V

overload protection. The overload protection

limits of the input terminals are shown in the table

below

Functions Overload Protection

AC/DC voltage measurement 250 Vrms

Resistance measurement and continuity test

Temperature measurement

AC/DC current measurement 250 V/630 mA, fast-acting fuse

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