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Keysight U1273A/

U1273AX Handheld

Digital Multimeter

Quick Start

Guide

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Summary of Contents for u1273a

Page 1: ...Keysight U1273A U1273AX Handheld Digital Multimeter Quick Start Guide ...

Page 2: ...ond 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 grou...

Page 3: ...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 ...

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Page 5: ...r 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 ...

Page 6: ...hillips screwdriver 3 Remove the battery cover and observe the polarity markings 4 Insert 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 ...

Page 7: ...ction 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 ...

Page 8: ...t 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 ...

Page 9: ...ew 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 μA or AC DC μA ZLOW Smart Auto ...

Page 10: ...table 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 auto...

Page 11: ...ns 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 fast acting fuse 440 mA 1000 V fast acting fuse ZLOW Smart Auto or ...

Page 12: ...rements 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 ...

Page 13: ...s or to enable the Filter Refer to the table below for the respective firmware versions 4 Press to save your changes 5 Press and hold until the multimeter restarts and returns to normal operation Turn the multimeter to DC Voltage mode to verify that the LPF symbol is turned on Setup Hz ms Log Exit Dual Setup Version 1 64 or older Version 1 95 or newer on DC Hz ms Log Setup ...

Page 14: ...n remove ghost voltages from your measurements by dissipating the coupling voltage Use ZLOW to reduce the possibility of false readings in areas where the presence of ghost voltages are suspected CAUTION To avoid possible electric shock or personal injury enable the Filter to verify the presence of hazardous DC voltages Displayed DC voltages can be influenced by high frequency AC components and mu...

Page 15: ...s Use the Smart Ω offset compensation function to measure resistors affected by DC offset or leakage current Smart Ω removes unexpected DC voltages within the instrument at the input or at the circuit being measured which will add error to While performing resistance measurements press until BiAS is shown on the secondary display to enable the Smart Ω function Shift View Esc ...

Page 16: ...et up your multimeter as shown in the figure below to perform continuity tests Press to switch to the continuity test function is shown on the display The beeper will sound as a continuity indication Press to switch between normal open and normal close contacts Normal open Circuit is normally open the beeper will sound when a short is detected Normal close Circuit is normally closed the beeper wil...

Page 17: ...Keysight U1273A U1273AX Quick Start Guide 17 NOTE The continuity function detects intermittent shorts and opens lasting as short as 1 ms A brief short or open causes the multimeter to emit a short beep ...

Page 18: ...rform diode tests Auto diode tests The Auto diode function tests both the forward bias and reverse bias directions of your diode simultaneously The forward bias voltage is shown on the primary display and the reverse bias voltage is shown on the secondary display Press to use the auto diode function Shift View Esc ...

Page 19: ...s found to be in good condition If the diode is out of the thresholds NGOOD is shown instead Capacitance measurements Set up your multimeter as shown in the figure below to perform capacitance measurements NOTE is shown on the bottom left of the display when the capacitor is charging and is shown when the capacitor is discharging ...

Page 20: ...ature measurements Press to switch to the temperature measurement function Shift View Esc WARNING Do not connect the thermocouple to electrically live circuits Doing so will potentially cause fire or electric shock K type thermocouple Heat source NOTE The multimeter uses a type K default setting temperature probe for measuring temperature ...

Page 21: ...hen measuring DC current from a mixed signal in DC measurement mode ensure that the Filter is enabled Shift View Esc WARNING Always use the proper function range and terminals for current measurements Set the positive input terminal to the terminal for currents below 440 mA and the terminal for currents above 440 mA NOTE For better accuracy when measuring low currents up to μA turn the rotary swit...

Page 22: ...w the instructions below for a quick check on the fuses Fuse 1 and Fuse 2 of your multimeter Fuse Part number Fuse rating Displayed readings Fuse healthy Replace fuse 1 2110 1400 440 mA 1000 V 102 Ω OL 2 2110 1402 11 A 1000 V 0 05 Ω OL To check Fuse 1 To check Fuse 2 ...

Page 23: ... contact inside the µA mA terminal To check Fuse 2 Ensure that the probe tip is touching the left half metal contact inside the A terminal The multimeter will sound an input warning alert if the probe tip is in contact with any other sides of the µA mA or A terminal other than the sides specified in the instructions above ...

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Page 25: ...ion is subject to change without notice Always refer to the Keysight website for the latest revision Keysight Technologies 2012 2017 Edition 4 June 1 2017 Printed in Malaysia U1273 90004 U1273 90004 www keysight com ...

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