UNI-T UT8803 User Manual Download Page 2

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I. Introduction

UT8803 is a professional 6000 count benchtop multimeter with high accuracy and outstanding performance.
It supports multiple measurements:

AC/DC voltage
AC/DC current
Resistance
Frequency
Capacitance
Inductance
Audion (hFE)
Diode(LED)
Thyristor(SCR)
Continuity

Please carefully read and comply with all warnings and cautions in this manual.

II. Open box inspection

Open the package box and take out the instrument. Please check whether the following items are deficient
or damaged and contact your supplier immediately if they are.

User Manual(DVD-R)----------------------1pc

Test leads-------------------------------------1pair

Alligator clip test line-----------------------1pair

Power line------------------------------------1pc

Software DVD-------------------------------1pc

USB cable------------------------------------1pcs

Warranty--------------------------------------1pc

Warning

When the measured voltage is greater than 600V, The instrument cannot be used for

measurements in CAT II, CAT III and CAT IV environment

Summary of Contents for UT8803

Page 1: ...L DIGITAL MULTIMETER True RMS 6000 Counts FUSED CAT II 600V FUSED MAX 30 sec EACH 15min 1000V 750V max Benchtop Digital Multimeter User Manual ...

Page 2: ...with all warnings and cautions in this manual II Open box inspection Open the package box and take out the instrument Please check whether the following items are deficient or damaged and contact your supplier immediately if they are User Manual DVD R 1pc Test leads 1pair Alligator clip test line 1pair Power line 1pc Software DVD 1pc USB cable 1pcs Warranty 1pc Warning When the measured voltage is...

Page 3: ... use an instrument without shell cover Otherwise there is a danger of electric shock 2 If test lead is damaged replace with the same type or of the same specifications 3 Do not touch bare wire connectors input terminal or circuit being measured 4 Use caution to measure voltage DC 60V or AC 36Vrms keep fingers behind finger guard to prevent shock hazard Before each use verify operation by testing a...

Page 4: ...0VAC 240V 450 440Hz 28VA max Protection fuse being used For AC 100V 120V 127V AC 250V T 250mA For AC 220V 230V 240V AC 250V T 125mA μA mA FUSE 400mA 1000V 12 Dimension 320mm 265mm 110mm 13 Weight 3100g accessories excluded 14 Safety standards IEC 61010 CAT II 600V 15 CAT II It is applicable to test and measuring circuits connected directly to utilization points socket outlets and similar points of...

Page 5: ...acitance Auto range Manual range Maximum value Minimum value Data hold Relative value Series Parallel USB connection Diode thyristor polarity Thyristor continuity Audion magnification Reading Unit Stimulation bargraph High voltage Inductance Capacitance loss factor inductance quality factor equivalent resistance measurement ...

Page 6: ...units mV V μA mA A Ω kΩ MΩ nF F mF μ μH mH H Hz kHz MHz β 20 21 AC 22 DC Negative value Alternative current Direct current Voltage Current Resistance Capacitance Inductance Frequency Thyristor magnification Temperature ...

Page 7: ...tage Resistance Continuity Frequency duty ratio Capacitance Inductance Capacitance loss factor Inductance quality factor Equivalent resistance DC current DC current AC current AC current Diode LED Audion magnification Thyristor measurement Temperature Multifunction socket UTS 03A Multifunction socket UTS 03A Multifunction socket UTS 03A V COM Multifunction socket UTS 03A Position Input terminal ...

Page 8: ... TURN OFF THE POWER INPUT BEFORE OPENING THE CASE AND REPLACING THE FUSE POUR ÉVITER UN CHOC ÉLECTRIQUE RETIREZ LES CORDONS DE MESURE ET ÉTEIGNEZ L ALIMENTATION AVANT D OUVRIR LA CASE ET DE REMPLACER LE FUSIBLE SELECTOR LINE 45 440Hz 28V A Max FUSE 100V 120V AC 100V AC 120 127V 220V 240V AC 220 230V AC 240V AC 250V T250mA AC 250V T125mA 9 10 11 12 13 Data hold backlight Function switch Range switc...

Page 9: ...d in this manual USB port Do not place equipment and its accessories in the trash Items must be properly disposed of in accordance with local regulations Comply with European Union Directive Conforms to UL STD 61010 1 61010 030 Certified to CSA STD C22 2 No 61010 1 61010 030 It is applicable to test and measuring circuits connected directly to utilization points socket outlets and similar points o...

Page 10: ...enter DC measurement mode figure 1 Connect the test leads to the load in parallel c Reading displayed d Press button to manually switch the range Press 4 times to enter mV range Note Do not input voltage over 1000V or it may pose shock hazard Use caution to measure high voltage After each measurement disconnect test leads and circuit being measured 黑红 L DIGITAL MULTIMETER True RMS 6000 Counts FUS...

Page 11: ... parallel c Reading displayed Sine wave true RMS d Press button to manually switch the range Press 4 times to enter mV range Note Do not input voltage over 750V or it may pose shock hazard Use caution to measure high voltage After each measurement disconnect test leads and circuit being measured 黑红 L DIGITAL MULTIMETER True RMS 6000 Counts FUSED CAT II 600V FUSED MAX 30 sec EACH 15min 1000V 750V ...

Page 12: ...apacitors When measuring low resistance the test leads will produce 0 1Ω 0 2Ω measurement error To obtain accurate measurement short the test leads and use REL function If the resistance when shorted is more than 0 5Ω please check if test leads are loosened or damaged When measuring high resistance above 1MΩ it is normal to take a few seconds to steady the readings For steady readings short test l...

Page 13: ...est lead c Display reading of positive onset voltage of PN junction Method 2 a Insert UT S03A multi function socket to the corresponding socket figure3 b Insert the diode or LED pin to the socket marked with DIODE When appears positive pole right side of socket negative pole left side of socket When appears positive pole left side of socket negative pole right side of socket c Display reading of p...

Page 14: ... 10Ω buzzer goes off continuously if circuit is open resistance 50Ω buzzer does not go off c Reading is displayed Note Before measurement please switch off all power supply and fully discharge all capacitors Do not input voltage over 30V sine wave RMS peak value 42V or DC 60V Disconnect test leads with the circuit after measurement 黑红 L DIGITAL MULTIMETER True RMS 6000 Counts FUSED CAT II 600V FU...

Page 15: ...ase reset the reading to 0 before measurement Method 1 When the test leads in open status and frequency is 1kHz press REL to reset the reading to zero 2 When the test leads are shorted and frequency is 10kHz press REL to reset the reading to zero For inductance over 1H it takes long time to steady the reading Values of capacitance loss factor D and inductance quality factor Q are only for referenc...

Page 16: ...hod 1 When the test leads in open status and frequency is 1kHz press REL to reset the reading to zero 2 When the test leads are shorted and frequency is 100Hz press REL to reset the reading to zero For capacitor over 600μF it takes long time to obtain reading Before measurement please switch off all power supply and fully discharge all capacitors Pay particular attention to capacitors with high vo...

Page 17: ...Insert the audion to UT S03A Pins of audion should correspond with jacks of UT S03A B basic E emission C collector d Reading is displayed Note Do not input voltage over 30V sine wave RMS peak value 42V or DC 60V For accuracy insert the audion correctly to the multi function socket Pay attention to the polarity DIGITAL MULTIMETER True RMS 6000 Counts CAT II 600V ...

Page 18: ...e RMS 6000 Counts 6000 Counts CAT II 600V CAT II 600V Note Before measurement please switch off all power supply and fully discharge all capacitors Pay particular attention to capacitors with high voltage Do not input voltage over 30V sine wave RMS peak value 42V or DC 60V Disconnect test leads with the circuit after measurement LCD display 0 1V 2V 0 1V 2V ERR OL Status Normal Normal Bad contact N...

Page 19: ...trument b Switch the dial to position press button to switch temperature unit OL appears if no thermocouple connected c Insert the thermocouple to UT S03A pay attention to the polarity reverse polarity results in negative reading DIGITAL MULTIMETER True RMS 6000 Counts CAT II 600V ...

Page 20: ...requency measurement c Connect the test leads with frequency source in parallel d Reading is displayed Note Do not input over 30V AC or it will pose shock hazard Disconnect test leads with the circuit after measurement 黑红 L DIGITAL MULTIMETER True RMS 6000 Counts FUSED CAT II 600V FUSED MAX 30 sec EACH 15min 1000V 750V max ...

Page 21: ...ds with the circuit after measurement Duty ratio measurement function of UT8803 is only for reference 13 Current measurement a Insert red test lead to μA mA or A jack black to COM jack b Switch the dial to position press to enter AC DC measurement c Connect the test leads with signal source in series d Reading is displayed When measuring AC current reading is sine wave RMS Note Before measurement ...

Page 22: ...ading least significant digit 1 year warranty Ambient temperature 18 C 28 C Ambient humidity 75 RH 1 DC voltage 6000mV 6V 60V 600V 1000V 0 1mV 1mV 10mV 100mV 1V 0 5 2 0 3 2 0 5 3 Range Resolution Accuracy Input impedance 10MΩ Maximum voltage 1000V ...

Page 23: ...0 20kHz 3 5 20 100kHz 8 5 40 Hz 1kHz 0 6 5 1 10kHz 3 5 5 40Hz 1kHz 1 2 5 1 3kHz 3 5 0 1mV 1mV 10mV 100mV 1V 600mV 6V 60V 600V 750V Input impedance 10MΩ Maximum voltage 750Vrms Frequency response 40Hz 100kHz Display Sine wave true RMS average response In open status there is residual reading which do not affect accuracy Range Resolution Accuracy 2 AC voltage ...

Page 24: ...μA 100μA 10mA 600 A 6mA μ 60mA 600mA 20A Range Resolution Accuracy If current 10A measure time should be less than 30s with 15mins interval In open status allowable error 5 residual digits 4 AC current Range Resolution Accuracy Frequency response 40Hz 15kHz If current 10A measure time should be less than 30s with 15mins interval In open status allowable error 5 residual digits ...

Page 25: ...2 5 5 5 Range Resolution Accuracy Open circuit voltage 1 2V 6 Capacitance Minimum measure range 8PF If capacitance 6 6mF OL symbol appears Input impedance 4kΩ 6nF 60nF 600nF 6µF 60 F µ 600 F µ 6mF 1PF 10PF 100pF 1nF 1nF 10nF 100 F µ 2 5 5 1 5 5 3 10 5 5 10 8 Range Resolution Accuracy ...

Page 26: ... 5 2 5 60Ω 600Ω 6kΩ 60kΩ 600 Ω k 6MΩ 0 01Ω 0 1Ω 1Ω 10Ω 100Ω 1kΩ 2 10 1 5 5 5 Range Resolution Accuracy Measure voltage 0 6V RMS Minimum measure range 16μH Input impedance 4KΩ 8 Equivalent resistance ACR Ω Range Resolution Accuracy Minimum measure range 0 1Ω Input impedance 4KΩ Only for reference ...

Page 27: ... 0 Only for reference Range Resolution Accuracy 9 Frequency duty ratio 10 Diode audion thyristor continuity Function Diode SCR test Audion hFE Continuity Position Resolution Accuracy No specified No specified About 0 1Ω When measuring hFE Ib0 about 10μA Vce about 2 8V When measuring diode Silicon PN junction onset voltage drop 0 5 0 8V open status voltage 8V When measuring continuity in good condu...

Page 28: ... 2 9 1 9 2 6 1 1 Display 0 1V 2V 0 1V 2V ERR OL Status Normal Normal SCR bad contact SCR not connected or bad contact SCR polarity Two way One way Unknown Unknown SCR polarity indicator 11 Temperature Range Resolution Accuracy K type thermocouple applicable ...

Page 29: ...0V AC 100V AC 120 127V 220V 240V AC 220 230V AC 240V AC 250V T250mA AC 250V T125mA SELECTOR LINE 45 440Hz 28VA Max FUSE 100V 120V AC 100V AC 120 127V 220V 240V AC 220 230V AC 240V AC 250V T250mA AC 250V T125mA 1 Turn the red switch to the corresponding position 2 Setting steps a Unplug the power cord b Turn the red switch to corresponding position c Selectable positions are shown below 1 Unplug th...

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