Keysight U1253B User manual

Keysight U1253B True
RMS OLED Multimeter
Quick Start
Guide

Contacting Keysight
www.keysight.com/find/assist
(worldwide contact information for
repair and service)
Safety Information
This meter is safety-certified in
compliance with EN/IEC
61010-1:2001, UL 61010-1 Second
Edition and CAN/CSA 22.2
61010-1 Second Edition, CAT III
1000 V/Category IV 600 V,
Pollution Degree II. 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
CAT III
1000 V
CAT IV
600 V
2 Keysight U1253B Quick Start Guide
For further safety information details, refer to the
Keysight U1253B True RMS OLED Multimeter User’s and Service Guide.

Keysight U1253B Quick Start Guide 3
Table of Contents
Charging the Battery . . . . . . . . . . . . . . . . . . . . . 6
Functions and Features . . . . . . . . . . . . . . . . . . . 8
Input Terminals and Overload Protection . . . . . 9
Performing Voltage Measurements . . . . . . . . 10
Performing Current Measurements . . . . . . . . 13
Performing Resistance, Conductance,
and Continuity Measurements . . . . . . . . . . 15
Performing Capacitance and Temperature
Measurements . . . . . . . . . . . . . . . . . . . . . . . 16
Frequency and Frequency Counter
Measurements . . . . . . . . . . . . . . . . . . . . . . . 18
Square Wave Output . . . . . . . . . . . . . . . . . . . . 20

4 Keysight U1253B Quick Start Guide
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Keysight U1253B Quick Start Guide 5
The following items are included with your
multimeter:
4Silicone test leads
44 mm probes
4Alligator clips
4Printed Quick Start Guide
4Rechargeable 8.4 V battery
4Power cord and AC adapter
4Certificate of Calibration
If anything is missing or damaged, please contact
the nearest Keysight Sales Office.
For more detailed information, please refer to the
Keysight U1253B True RMS OLED Multimeter
User’s and Service Guide on Keysight website
(www.keysight.com/find/handheld-tools).
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.

6 Keysight U1253B Quick Start Guide
Charging the Battery
It is strongly recommended that you use the
specified 24-volt DC adapter included as an
accessory to charge the rechargeable battery.
1Remove the test leads from the multimeter
and turn the rotary switch to .
2Plug the DC adapter into a power outlet.
3Insert the red (+) and black (–) banana plugs
(4 mm plugs) of the DC adapter to the
and terminals respectively. Ensure that
the polarity of the connection is correct.
4The display will show a countdown timer of
10 seconds for the self-test to start. The
multimeter will output short single-tone
sounds to remind you to charge the battery.
Press to start charging the battery, or
the multimeter will automatically start

Keysight U1253B Quick Start Guide 7
charging after 10 seconds. It is recommended
not to charge the battery if the battery
capacity is over 90%.
NOTE
For the battery charger, the main supply voltage
fluctuations must not exceed ±10%.
CAUTION
– Do not rotate the rotary switch from
position when charging the battery.
– Perform battery charging only with 7.2 V or
8.4 V NiMH rechargeable battery, 9 V size.
– Disconnect test leads from all the terminals
when charging the battery.
– Ensure proper insertion of battery in the
multimeter, and follow the correct polarity.
– A new rechargeable battery comes in a
discharged condition and must be charged
before use (refer to the U1253B User's and
Service Guide for charging instructions).
– Upon initial use (or after a prolonged storage
period), the rechargeable battery may require
three to four charge/discharge cycles before
achieving maximum capacity. To discharge,
simply run the multimeter under the
rechargeable battery's power until it shuts
down or the low battery warning appears.
– The multimeter may indicate that charging is
complete after ten minutes when charging a
new rechargeable battery. This is a normal
phenomenon with rechargeable batteries.
Remove the rechargeable battery from the
device, reinsert it, and repeat the charging
procedure.

8 Keysight U1253B Quick Start Guide
Functions and Features
Action Steps
Changes the OLED brightness Press .
Freezes the measured value Press .
Starts MIN|MAX|AVG|NOW recording Press and hold for > 1 s.
Offsets the measured value Press .
Changes the measurement range Press .
Turns on auto range Press and hold for > 1 s.
Turns on dual display Press .
Starts manual data logging Press and hold for > 1 s.
Views the logged data Press for > 1 s, press or
to scroll through the logged data.
Clears the logged data Press for > 1 s, press
for > 1 s.
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 U1253B Quick Start Guide 9
Input Terminals and Overload Protection
Measurement Functions Input Terminal Overload Protection
Voltage COM 1000 Vrms
Diode 1000 Vrms
< 0.3 A short circuit
current
Resistance
Capacitance
Temperature
Current (μA and mA) µA.mA COM 440 mA/1000 V
30 kA/fast-acting fuse
Current (A) A COM 11 A/1000 V
30 kA/fast-acting fuse

10 Keysight U1253B Quick Start Guide
Performing Voltage Measurements
Measuring AC voltage
1Set the rotary switch to . For and
mode, press to ensure is
shown on the display.
2Connect the red and black test leads to input
terminals V. mV (red) and COM (black)
respectively.
3Probe the test points and read the display.
4Press to display dual measurements.
Parameter can be switched consecutively.