Keysight U4C/ U4C Handheld Digital Multimeter Quick Start Guide
Safety Notices CUTION CUTION 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 CUTION notice until the indicated conditions are fully understood and met. WRNING WRNING 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 WRNING notice until the indicated conditions are fully understood and met. Safety Information The U4C/U4C is safety-certified in compliance with IEC/EN 600-, IEC/EN 600--033, CN/CS-C. No. 600-, CN/CS-C. No. 600-033, NSI/UL 600-, and NSI/UL 600-033. Use with standard or compatible test probes. EMC Information The U4C/U4C is EMC-certified in compliance with with IEC 636-/EN 636-, ICES/NMB-00, and S/NZS CISPR. Safety symbols Earth (ground) terminal Equipment protected throughout by double insulation or reinforced insulation Caution, risk of danger (refer to this manual for specific Warning or Caution information) CT III 000 CT I 600 Category III 000 overvoltage protection Category I 600 overvoltage protection For further safety information details, refer to the Keysight U4C/U4C Handheld Digital Multimeter User s Guide. Keysight U4C/U4C Quick Start Guide
Standard ccessories The following accessories are shipped standard with the U4C/U4C multimeters: Test leads (red and black) IR-to-USB cable Four.5 batteries Printed copy of the U4C/U4C Quick Start Guide (this document) Printed 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 U4C and U4C Handheld Digital Multimeters. The model U4C appears in all illustrations. ll related documents and software are available for download at www.keysight.com/find/hhtechlib. NOTE Your multimeter is capable of receiving remote commands and performing remote data logging. To use these features, you will need an IR-to-USB cable (included in the shipment) or an IR-to-Bluetooth adapter (U7, purchased separately), and the Keysight Handheld Meter Logger Software (downloadable from www.keysight.com/find/hhmeterlogger). Keysight U4C/U4C Quick Start Guide 3
Install or Change the Batteries The multimeter is powered by four.5 batteries (included in the shipment). 3 4 Turn On the Multimeter Turn the rotary switch from the position to any other position to start making measurements. 4 Keysight U4C/U4C Quick Start Guide
The Multimeter at a Glance sense red LED indicator Display screen Keypad Rotary switch Input terminals Flashlight IR communication port Test lead/probe holders Battery access (under the tilt stand) Tilt stand Fuse access (under the tilt stand) Keysight U4C/U4C Quick Start Guide 5
Using the Rotary Switch Legend ZLOW Measurement function Z LOW (low input impedance) C/DC for checking stray voltages Model U4C U4C C /Harmonic ratio [a] DC Resistance/Continuity Diode/Capacitance m C or DC μ and m C or DC T temperature/t and T T temperature [a] or C/DC m (when enabled from the Setup CoUP menu) [a] For U4C only. WRNING Remove the test leads from the measuring source or target before changing the rotary switch position. Refer to the U4C/U4C User s Guide for a complete list and description of all rotary switch labels. 6 Keysight U4C/U4C Quick Start Guide
Using the Keypad Legend Less than second Key response when pressed for: More than second MaxMin Hz sense uto Range Enables the frequency test mode. Sets the Null/Relative mode. Sets a manual range. Switches between environment temperature compensation (ETC) and non-etc for temperature measurements. Changes the sense detector sensitivity. Freezes the present reading in the display (TrigHold mode). utomatically freezes the present reading once the reading is stable (utohold mode; when enabled from the multimeter s Setup mode). Starts, stops, and exits the Max/ Min/vg recording. Toggles on/off non-contact voltage detection (sense). Enables autoranging. Log Hold Log Press Hold this mode. again to exit Starts and stops data logging. Stores a record of the measured signal and exports it via the multimeter s optical communication port. Restarts the Max/Min/vg recording. Turns the backlight on/off. Turns the flashlight on/off. Keysight U4C/U4C Quick Start Guide 7
Legend Less than second Key response when pressed for: More than second iew Switches between the regular and shifted (icon printed in orange) functions. Enables the Scan mode for temperature measurements (U4C only). Enters and exits the data log review mode (with the Hold mode disabled). Exits the TrigHold or utohold mode. Enters the Setup mode (while turning the rotary switch from OFF to on), and exits the Setup mode. 8 Keysight U4C/U4C Quick Start Guide
Using the Input Terminals WRNING To avoid damaging this device, do not exceed the input limit. Rotary position Input terminals Overload protection ZLOW COM 000 rms 000 rms for short circuit <0.3 m COM 440 m/000, fast-acting fuse m COM /000, fast-acting fuse Keysight U4C/U4C Quick Start Guide 9
Hazardous Signal Warnings Hazardous voltage indication The multimeter will display the hazardous voltage ( ) symbol as an early precaution when the measured voltage is: Measurement DC C (m) +30 or +OL (voltage overload) 30 or OL 30 or OL This symbol will also be displayed when the input signal exceeds the limitation of measuring circuit as frequency dependence. Hazardous current indication The multimeter will display the symbol as an early precaution when the measured current has reached the maximum fuse rating as follows: Measurement DC C + or +OL (current overload) or OL or OL μ/m 440 m or +OL 440 m or OL 440 m or OL CUTION If your measuring current is > 0 ~ 9.999, you will need to lower the current within a 30 seconds time limitation to avoid blowing the multimeter s fuse. 0 Keysight U4C/U4C Quick Start Guide
Input warning The multimeter emits a continuous beep and the red LED indicator lights up when: the test lead is inserted into the or input terminal but the rotary switch is not set to the correct current position. The secondary display will show or until the test lead is removed. The beeping will stop automatically after 5 seconds even if the test lead is not removed. the rotary switch is set to the current measurement position but no lead is inserted into its respective input terminal. The secondary display will show, and the warning alert will stop after 3 seconds approximately. Keysight U4C/U4C Quick Start Guide
oltage Measurements Measuring C voltage sense U4C True RMS Multimeter 3 C MaxMin Hz Log Hold sense uto Range iew m ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM Keysight U4C/U4C Quick Start Guide
Measuring harmonic ratio (U4C only) The harmonic ratio function indicates the deviation of non-sinusoidal to sinusoidal waveform from the range of 0% to 00%, which indicates the presence of harmonics. higher harmonic ratio means more harmonics are present on the signal. iew C (true rms) C (averaging sense) [] Harmonic ratio with C (true rms) Harmonic ratio with C (averaging sense) [] veraging sense C measurements apply to sine wave inputs when measuring linear loads. Keysight U4C/U4C Quick Start Guide 3
Measuring DC voltage sense U4C True RMS Multimeter 3 MaxMin sense uto Hz Range DC Log iew Hold m ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM 4 Keysight U4C/U4C Quick Start Guide
Using Z LOW for voltage measurements (U4C only) Use the low input impedance (Z LOW ) function to remove stray/induced voltages from your measurements. CUTION Do not use the Z LOW function to measure voltages in circuits that could be damaged by this function s low impedance ( kω). m ZLOW 3 DC voltage reading C voltage reading Keysight U4C/U4C Quick Start Guide 5
Current Measurements WRNING Never attempt an in-circuit current measurement where the open-circuit potential to earth is >000. Measuring DC current 6 Keysight U4C/U4C Quick Start Guide
Measuring C current Cycling through different current measurements iew m % (For m ) [] veraging sense True RMS [] For U4C only. Keysight U4C/U4C Quick Start Guide 7
Measuring voltage frequency MaxMin Hz Measuring current frequency MaxMin Hz Using a low pass frequency filter ( ) for frequency measurements The filter blocks unwanted frequency (~ khz) while the multimeter continues measuring voltage/current via the selected averaging sense or true rms function. MaxMin Hz 8 Keysight U4C/U4C Quick Start Guide
Resistance Measurement sense U4C True RMS Multimeter 3 MaxMin Hz sense uto Range Log Hold iew m ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM Removing test lead resistance sense Keysight U4C/U4C Quick Start Guide 9
Continuity Test CUTION To avoid possible damage to the multimeter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring continuity. Use the DC voltage function to confirm that the capacitor is fully discharged. If resistance < threshold, beeper sounds and red LED indicator lights up sense U4C True RMS Multimeter 4 OFF (open) 3 iew MaxMin Hz Log Hold sense uto Range iew ON (closed) m ZLOW 0 MX FUSED 440m FUSED CT I 600 CT III 000 MX m COM 0 Keysight U4C/U4C Quick Start Guide
Diode Test Forward bias Beeper will emit: one beep (for 0.3 to 0.8 ) continuous beep (for <0.05 ) sense U4C True RMS Multimeter 3 MaxMin Hz Log Hold sense uto Range iew m ZLOW 0 MX FUSED 440m FUSED CT I 600 CT III 000 MX m COM Keysight U4C/U4C Quick Start Guide
Reverse bias sense U4C True RMS Multimeter 3 MaxMin Hz Log Hold sense uto Range iew m ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM Keysight U4C/U4C Quick Start Guide
Capacitance Measurement CUTION To avoid possible damage to the multimeter or to the equipment under test, disconnect circuit power and discharge all high-voltage capacitors before measuring capacitance. Use the DC voltage function to confirm that the capacitor is fully discharged. sense U4C True RMS Multimeter 4 3 iew MaxMin Hz Log Hold sense uto Range iew + m ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM Keysight U4C/U4C Quick Start Guide 3
Temperature Measurement WRNING Do not connect the thermocouple to electrically live circuits. Doing so will potentially cause fire or electric shock. sense U4C True RMS Multimeter MaxMin sense uto 3 Hz Range Log iew Hold m ZLOW 0 MX FUSED 440m FUSED CT I 600 CT III 000 MX m COM Type-K thermocouple probe Cycling through different temperature measurements (U4C only): iew Scan 4 Keysight U4C/U4C Quick Start Guide
Non-Contact oltage Detector (sense) (U4C only) WRNING oltage could still be present even if there is no sense alert indication. Do not rely on the sense detector with shielded wires. Never touch live voltage or conductor without the necessary insulation protection, or power off the voltage source. The sense detector may be affected by differences in socket design, insulation thickness, and insulation type. C voltage source C 3 sense U4C True RMS Multimeter + beeper sounds sense MaxMin Hz sense uto Range Changing the sense detector s sensitivity: > sec Log Hold iew m Press uto Range ZLOW 0 MX FUSED CT I 600 CT III 000 440m MX FUSED m COM Keysight U4C/U4C Quick Start Guide 5
Measurement Data Recording and Review Recording measurement data (manual log) Log Hold > sec NOTE Refer to the U4C/U4C User s Guide for other data recording options. iewing the recorded data iew > sec 6 Keysight U4C/U4C Quick Start Guide
Cycling through previously stored records iew Export logging data Manual logging data Event logging data Interval logging data Keysight U4C/U4C Quick Start Guide 7
iewing stored entries iewing next and previous stored entries sense iewing first and last stored entries MaxMin Hz uto Range Clearing stored entries Log Hold Clear the last stored entry > sec Clear all stored entries 8 Keysight U4C/U4C Quick Start Guide
This information is subject to change without notice. lways refer to the Keysight website for the latest revision. Keysight Technologies 05-06 Edition 3, December 3, 06 Printed in Malaysia *U4-900* U4-900 www.keysight.com