UNI-T UT804 Specifications

Model UT804OPERATING MANUAL

9Model UT804: OPERATING MANUALterminals or between any terminal and grounding.The rotary switch should be placed in the rightposition and no any chang

10Model UT804: OPERATING MANUALInternational Electrical SymbolsAC or DCDC MeasurementAC MeasurementGroundingWarning. Refer to the Operating ManualDefi

11Model UT804: OPERATING MANUALTurning the Meter OnTo turn the Meter on, switch on the on-ff switch at theback of the Meter.Battery ConsiderationsThe

12Model UT804: OPERATING MANUALthe display notifies you that the batteries are low andshould be replaced.Figure 2-1. Meter Structure1234Under AC opera

13Model UT804: OPERATING MANUALRotary SwitchTurn the Meter on by selecting any measurement function. The Meter presents a standard display for that f

14Model UT804: OPERATING MANUALThe Table 2-1 described each rotary switch positionVmVTable 2-1. Rotary Switch SelectionsRotary Switch PositionDC volta

15Model UT804: OPERATING MANUALTable 2-2. Functional ButtonsFunctional ButtonsThe buttons activate features that augment the function selected with t

16Model UT804: OPERATING MANUALTable 2-2. Functional ButtonsButton Access MethodDescriptionPress the button oncePress the buttononce after entering S

17Model UT804: OPERATING MANUALTable 2-2. Functional ButtonsButton Access MethodDescriptionPress the button once afterentering Setup or Recall or Sto

18Model UT804: OPERATING MANUALTable 2-3 Functions Vs DisplaysThe Meter Functions Vs DisplaysTable 2-3 shows the cross reference of function and displ

Chapter Title Page66788101111111111121213151820202424252527Model UT804: OP

19Model UT804: OPERATING MANUALTable 2-3 Functions Vs DisplaysThe tested ACmA valueThe tested DC current valueThe tested AC current valueThe current m

20Model UT804: OPERATING MANUALDisplay features are shown in Figure 2-2 and describedin Table 2-4.Figure 2-2. Display FeaturesSelecting the RangePress

21Model UT804: OPERATING MANUALTable 2-4. Display FeaturesNo. MeaningSymbolMaximum reading displayed.Minimum reading displayedThe sequence of the read

22Model UT804: OPERATING MANUALTable 2-4. Display FeaturesNo. MeaningSymbolΩ: Ohm. The unit of resistance.kΩ: Kilohm. 1x103 or 1000 ohmsMΩ: Megaohm. 1

23Model UT804: OPERATING MANUALTable 2-4. Display FeaturesNo. MeaningSymbolContinuity testData store is onData recall is onThe relative mode is on to

24Model UT804: OPERATING MANUALAnalogue Bar GraphThe bar graph provides an analogue indication of themeasured input. For most measurement functions,

25Model UT804: OPERATING MANUALVChapter 3Making MeasurementFigure 3-1. DC Voltage MeasurementTo measure DC voltage, set up the Meter as Figure 3-1 and

26Model UT804: OPERATING MANUALVNoteSpecial care should be taken when measuring highvoltage.When voltage measurement has been completed,disconnect the

27Model UT804: OPERATING MANUALVVFigure 3-2. AC Voltage MeasurementB. Measuring AC VoltageWarningTo avoid harms to you or damages to the Meterfrom ele

28Model UT804: OPERATING MANUALmVmVFigure 3-3. DC Millivoltage MeasurementC. Measuring DC MillivoltageWarningTo avoid harms to you or damages to the M

2Model UT804: OPERATING MANUAL28293537384042434446464647474848485051515153Chapter Title

29Model UT804: OPERATING MANUALFigure 3-4. DCµA Currents MeasurementD. Measuring CurrentsIf the fuse burns out during measurement, the Metermay be dam

30Model UT804: OPERATING MANUALTo measure ACµA current, set up the Meter as Figure3-5 and proceed as follows:1.Insert the red test lead into the µAmA

31Model UT804: OPERATING MANUALTo measure DCmA current, set up the Meter as Figure3-6 and proceed as follows:1. Insert the red test lead into the µAmA

32Model UT804: OPERATING MANUALTo measure ACmA current, set up the Meter as Figure3-7 and proceed as follows:1. Insert the red test lead into the µAmA

33Model UT804: OPERATING MANUALTo measure DCA current, set up the Meter as Figure3-8 and proceed as follows:1. Insert the red test lead into the 10A t

34Model UT804: OPERATING MANUAL3. Connect the test leads in serial with the object being measured. The measured value shows on the display. I

35Model UT804: OPERATING MANUALFigure 3-10. Resistance MeasurementE. Measuring ResistanceWarningTo avoid harms to you, please do not attempt toinput v

36Model UT804: OPERATING MANUALWhen measuring low resistance, the test leads canadd 0.1 to 0.2 of error to resistance measurement.To test the leads,

37Model UT804: OPERATING MANUALFigure 3-11. Continuity TestF. Testing for ContinuityWarningTo avoid harms to you, please do not attempt toinput voltag

38Model UT804: OPERATING MANUALFigure 3-12. Diode TestG. Testing DiodesWarningTo avoid harms to you, please do not attempt toinput voltages higher tha

3Model UT804: OPERATING MANUAL545455565657585859606162626363646565656667Chapter Title

39Model UT804: OPERATING MANUALon the component’s anode and place the black testlead on the component’s cathode. The red test leadpolarity is “+” whi

40Model UT804: OPERATING MANUALFigure 3-13. Capacitance MeasurementH. Measuring CapacitanceWarningTo ensure accuracy, the Meter inside is dischargedag

41Model UT804: OPERATING MANUAL accuracy.To improve the measurement accuracy of small valuecapacitors (less than 10nF), press REL ∆ with thetest le

42Model UT804: OPERATING MANUALmVHz%mVFigure 3-14. Frequency / Duty Cycle MeasurementI. Measuring Frequency / Duty Cycle To measure frequency and duty

43Model UT804: OPERATING MANUALoCoFFigure 3-15. Temperature MeasurementJ. Measuring TemperatureWarningTo avoid harms to you, please do not attempt toi

44Model UT804: OPERATING MANUALmAFigure 3-16. 4~20mA loop current as % readoutK. 4~20 mA loop current as % readoutWarningTo avoid electric shock, plea

45Model UT804: OPERATING MANUALNotellllWhen the measured current is 5A, continuousmeasurement is allowed.When the measured current is between 5A-10A,

46Model UT804: OPERATING MANUALllIntroductionChapter 4 shows you how to use stores, recall andcommunication features available on the MeterStore and C

47Model UT804: OPERATING MANUALlllllllPress RECALL to recall the stored value andRECALL appears to confirm the operation.The upper right secondary dis

48Model UT804: OPERATING MANUALIntroductionThe Meter allows you to change the default operating configuration of the Meter by changing setup options m

4Model UT804: OPERATING MANUAL7101415182149Table Title PageList of Tables1-1

49Model UT804: OPERATING MANUALTable 5-1. Setup SelectionsOver the upper limits, beeps not continuously.Over the lower limits, beeps not continuously.

50Model UT804: OPERATING MANUALSaving Setup OptionsAt each setup Option, store your choice and exit setup by press EXIT, advance to the next Option by

51Model UT804: OPERATING MANUALFigure 6-1. Fuse ReplacementChapter 6MaintenanceThis chapter provides basic maintenance informationincluding battery a

52Model UT804: OPERATING MANUALWarningTo avoid electrical shock or arc blast, or personalinjury or damage to the Meter, use specified fusesONLY in acc

53Model UT804: OPERATING MANUALFigure 6-2. Battery ReplacementC. Replacing the BatteryWhen the Meter is under battery operated siutation,battery cann

54Model UT804: OPERATING MANUALMaximum Voltage between any Terminal and GroundingCertificationCompliancesFused Protection for µAmA input terminal:Fuse

55Model UT804: OPERATING MANUALDisplay (LCD)Operating TemperatureStorage TemperatureRelative HumidityAltitudePowerElectromagnetic CompatibilityDimensi

56Model UT804: OPERATING MANUALRangePolarityOverloadingBattery DeficiencyAutoAutoDisplay OL (except at 4~20mA Loop range which display HI or LO)Displa

57Model UT804: OPERATING MANUALFunctionDC VoltageAC Voltage, True RMSBasic AccuracyDC CurrentAC Current, True RMSResistanceCapacitanceFrequencyTempera

58Model UT804: OPERATING MANUALDetailed Accuracy SpecificationsAccuracy: ( [% of reading] + [number of least significant digits] ), guarantee for 1

5Model UT804: OPERATING MANUAL1220252728293031323334353738404243445153Table Title

59Model UT804: OPERATING MANUAL4V40V400V1000V45Hz~1kHz>1kHz~10kHz>10kHz~100kHz45Hz~1kHz>1kHz~10kHz>10kHz~100kHz45Hz~1kHz>1kHz~10kHz>

60Model UT804: OPERATING MANUAL400µA4000µA40mA400mA10A0.01µA0.1µA0.001mA0.01mA0.001A (0.1%+15) (0.15%+15) (0.5%+30)0.5A, 250V, fast type fuse, ø5×20mm

61Model UT804: OPERATING MANUAL400µA4000µA40mA400mA10A0.01µA0.1µA0.001mA0.01mA0.001A45Hz~1kHz>1kHz~5kHz>5kHz~10kHz45Hz~1kHz>1kHz~ 5kHz>5kH

62Model UT804: OPERATING MANUAL400Ω4kΩ40kΩ400kΩ4MΩ40MΩ0.01Ω0.0001kΩ0.001kΩ0.01kΩ0.0001MΩ0.001MΩ (0.3%+40)+test leads open circuit value (0.3%+40) (0.5

63Model UT804: OPERATING MANUAL40nF400nF4µF40µF400µF4mF40mF0.001nF0.01nF0.0001µF0.001µF0.01µF0.0001mF0.001mF (1%+20)+ capacitance value of open circui

64Model UT804: OPERATING MANUAL40Hz400Hz4kHz40kHz400kHz4MHz40MHz400MHz0.001Hz0.01Hz0.0001kHz0.001kHz0.01kHz0.0001MHz0.001MHz0.01MHz (0.01%+8)Not Spec

Remarks:l It is valid from 10% of range to 90% of range.l Input amplitude “a” as follows; (DC electric level is zero) When 10Hz~40MHz : 200mV a

66Model UT804: OPERATING MANUAL-40oF~32oF32oF~752oF752oF~1832oF (4%+50) (1.5%+50) 3%1000V0.1oFRemarks:l Included is a K-Type (nickel chromium~nickel s

67Model UT804: OPERATING MANUALThis operating manual is subject to change without notice.** END **

68Model UT804: OPERATING MANUALCopyright 2006 Uni-Trend Group Limited.All rights reserved.Manufacturer:Uni-Trend Technology (Dongguan) LimitedDong Fan

6Model UT804: OPERATING MANUALOverviewThis Operating Manual covers information on safetyand cautions. Please read the relevant informationcarefully an

7Item Description QtyModel UT804: OPERATING MANUALUnpacking InspectionOpen the package case and take out the Meter. Check the items shown on Table 1-1

8Model UT804: OPERATING MANUALSafety InformationThis Meter complies with the standards IEC61010 safetymeasurement requirement: in pollution degree 2,o