UNI-T UT90C Spécifications

110VP/N:11040110269172-9375

9AC voltage measurement The AC voltage ranges are: 4.000V, 40.00V, 400.0V and 750.0V. To measure AC Voltage, connect the Meter as follows: 1. In

10NoteAt 400mV range, the Meter has an inputimpedance of 4000M . Except at 400mV range,all other ranges the Meter has an inputimpedance of 10M. This l

111. Insert the red test lead into the HzVȍterminal and the black test lead into the COM terminal. 2. Set the rotary switch toȍ, resistance measurem

12other semiconductor devices. The diode test sends a current through the semiconductor junction, and then measures the voltage drop across the jun

13To test for continuity, connect the Meter as below:1. Insert the red test lead into the HzVterminal andthe black test lead into the COM terminal.2.

14accuracy of capacitance measurement, pressbutton before measuring (the LCD will display 0).3. Connect the test leads with the object beingmeas

15NoteWhen Hz measurement has been completed,disconnect the connection between the testingleads and the circuit under test. D. AC & DC Current Mea

163. Set the rotary switch toȝA , mA or A .4. The Meter defaults to DC current measurement mode. To toggle between DC and AC current measurement fu

17To set up charging as follows:Charge at 110V AC1. Insert the red test lead into the HzV terminal and the black test lead into the COM terminal.2. Se

18power. The Hold mode will not capture unstableor noisy readings.The Hold mode is applicable to all measurementfunctions.Pressto enter Hold mode (me

1Table of Contents Title Page Overview…………………………………………………2 Package Contents………………………………………2 Safety Information…………

19The RESET buttonThe RESET mode applies only to the charge function.The LCD will be closed when the power is low. Whenthe LCD is first opened or cha

20Electro-Magnetic Field Interference: When field value is under 1V/m:total accuracy = assigned accuracy + 5% of therange.When field value is over 1V/

21B. DC VoltageRangeResolutionAccuracyOverloadProtection400mV0.1mV ±(0.8%+3)4V 1 mV40V 10 mV400V 100mV±(0.8%+1)1000V 1V ±(1%+3)1000V D

22resistance value is 10 (The closed circuit is inworking condition). E. Capacitance TestRangeResolutionAccuracyOverloadProtection40nF 10pF±(3%+10)40

2315 minutes rest intervals between tests)H. DC CurrentRangeOverloadProtection400 A 0.1 A4000A1A±(1%+2)40mA 10 A400mA 0.1mA±(1.2%+3)Fuse 500mA, 250V,

24high temperature, explosives, and strong magnetic field. B. Replacing the Fuses (see figure 11) Warning To avoid electrical shock or arc blast, whic

2Overview This Operating Manual covers information on safety and cautions. Please read the relevant information carefully and observe all the Warnings

31000V, CAT. III 600V) and double insulation. Use the Meter only as specified in this operating manual, otherwise the protection provided by the Meter

4range shall be made during measurement is conducted to prevent damage of the Meter. z Disconnect circuit power and discharge all high-voltage capacit

5Warning. Refer to the Operating ManualConforms to Standards of EuropeanUnionThe Meter Structure (see figure 1) ķ LCD Display ĸ Solar Panel Ĺ SELEC

6Charge at 110VAC.12-36: Charge at 12-36 .Functional ButtonsBelow table indicated for information about thefunctional button operations. ButtonMeasur

117No. Symbol MeaningAC Indicator for AC voltage or current.The displayed value is the meanvalue.Indicates negative reading. CHARGE Charge indicatorA

Measurement Operation 8 µF, nF F: µF: nF: Farad (unit of capacitance) Microfarad. 1 x 10-6 or0.000001 farads. Nanofarad. 1 x 10-9 or 0.00000000