Sper-scientific 840073 Multimeter - Auto-Ranging Manual do Utilizador Página 1

Table of Contents (1)TitleA. IntroductionB. Safety RulesC. International Electrical SymbolsD. FeatureE. Specification 1. DC Voltage 2. AC Volt

E. Specification(2)

E. Specification(3)3. DC CurrentRange400µA4mA40mA400mA10AResolution0.1µA1µA10µA100µA10mAAccuracy(1%+2)(1.2%+2)(1.5%+2) Overload Protection: 0.5A/250v

E. Specification(4)4. AC CurrentRange400µA4mA40mA400mA10AResolution0.1µA1µA10µA100µA10mAAccuracy(1.3%+5)(2%+5)Overload Protection: 0.5A/250V fuse. Un-

E. Specification(5)Range400Ω4kΩ40kΩ400kΩ4MΩ40MΩResolution0.1Ω1Ω10Ω100Ω1KΩ10KΩAccuracy(1%+2)(1.2%+2)(1.2%+2)(1.5%+2)5. ResistanceOverload Protection: A

E. Specification(6)6. Diode, Transistor, Continuity TestFunctionDiodeTransistorRangehFEResolution1mV1β0.1ΩInputProtection230V DCor AC230V DCor ACRemar

F. Operation Plate1. Liquid Crystal Display2. Data hold or POWER function Button3. Rotary Switch4. Transistor Test Jack5. Common Input Jack6

G. Make Measurements(1)First, set rotary switch to proper position, after several seconds of self-check, the meter will enter measuring state. When “

1. DC Voltage Measurement (figure 2)G. Make Measurements(2)( figure 2 )1) Never measure voltage value exceeding 500V, although it is possible t

G. Make Measurements(3)4) For ranges except 400mV, input impedance 10MΩ, this can cause measuring tolerance at high impedance circuit ,If circu

G. Make Measurements(4)2. AC Voltage Measurement (figure 3)Same as DC voltage measurement, however, the meter has auto-rangefunction with initial ran

Table of Contents (2)TitleG. Make Measurements 1. DC Voltage Measurement2. AC Voltage Measurement 3. DC Current Measurement4. AC Current M

G. Make Measurements(5)3. DC Current Measurement (figure 4)(figure 4)1) This range is manual range. Do not measure, when value between open vol

G. Make Measurements(6)3) If the magnitude of current is unknown, you should set rotary switch to the higher range, then adjust to a lower rang

G. Make Measurements(7)4. AC Current Measurement (figure 5)Same as DC current measurement.(figure 5)22Model UT30A: OPERATING MANUAL

G. Make Measurements(8)5. Resistance Measurement(figure 6)1) To avoid damages to the Meter, when measuring resistance, cut off the power of th

3) Wires takes 0.1Ω -0.3Ω tolerance at function of 400Ω when measuringresistance. To get an accurate reading, you can subtract the shortcircuit valu

6. Diode measurement (figure 7)( figure 7)G. Make Measurements(7)1) Cut off the power supply of the object to avoid damages to the Meter when

3) When measuring voltage drop of PN, for a good silicon semiconductor structure, normal positive reading should stay between 0.5V~0.8V. Neg

G. Make Measurements(9)7. Transistor hFE Measurement(figure 8)( figure 8)1) Check that the transistor is PNP or NPN type at first.2) Connect the t

( figure 9)G. Make Measurements(10)8. Continuity test (figure 9)Before testing continuity, power off and no charge in capacitor to avoiddamages to the

9. “Hold”, “Power” Button FunctionG. Make Measurements(11)1) Pressing “Hold” button holds current reading displayed on LCD in open state, press

A. IntroductionUT30A Multimeter is 3 3/4 digits with steady operations, fashionable structureand highly reliable hand-held measuring instrument. The m

H. Fuse and Battery replacement1. Remove inputs & test leads from terminals.2. Remove two rubber feet and two screws from the bottom case.3.

I. Included Accessories1. Operating Manual2. Test Leads3. 2 pieces of 1.5V (AAA) Battery31Model UT30A: OPERATING MANUAL

~ END ~ * The manual is subject to changes without separate notice. *32Model UT30A: OPERATING MANUAL

B. Safety Rules(1)1. Read the manual carefully before use. Use the Meter only as specified in this manual, otherwise, the protection provided by

8. When measuring voltage higher than DC 60V or AC 30Vrms, pay extra attention to avoid electric shock.9. Use only 0.5A/250V φ 5X20(mm) fast

C. International Electrical SymbolsCAUTION-FOR CONTINUED PROTECTION AGAINST FIRE, REPLACEONLY WITH FUSE OF THE SPECIFIED VOLTAGE AND CURRENTRATINGS.Gr

”““”“”“”D. Feature(1)

“”D. Feature(2)

E. Specification(1)1. DC VoltageRange400mV4V40V400V500VResolution0.1mV1mV10mV100mV1V(0.8%+3)(0.8%+1)(1%+3)Accuracy9Model UT30A: OPERATING MANUAL