Gw-instek GDM-356 Manual do Utilizador

Page345689101113131416171920212223242525262727272828GDM-356 1Table of ContentsTitleOverviewUnpacking InspectionSafety InformationRules For Safe Opera

10Functional ButtonsBelow table indicated for information about the functionalbutton operationsButton Operation PerformedHOLD(B

11Display Symbols (see figure 2)( figure 2)No. Symbol Meaning1Dangerous Voltages.2The battery is low. Warning: To avoid fals

12Display Symbols (see figure 2)No. Symbol MeaningnF, µF12F: Farad. The unit of capacitance.µF: Microfarad.1 x 10-6 or 0.00

Measurement Operation(1)A. DC Voltage Measurement (see figure 3)WarningTo avoid harms to you or damages to the Meter fromelectric shock, please do not

14Measurement Operation(2)Notel If the value of voltage to be measured is unknown, use the maximum measurement position (1000V) and reduce

15The AC voltage measurement has 4 measurementpositions on the rotary switch: 2V, 20V, 200V and 750VTo measure AC Voltage, connect the Meter as follow

16Measurement Operation(4)C. DC Current Measurement (see figure 5)WarningNever attempt an in-circuit current measurementwhere the open circuit voltage

2. Insert the red test lead into the µAmA or 20A terminal and the black test lead into the COM terminal.3. Set the rotary switch to an appro

18Measurement Operation(6)WarningNever attempt an in-circuit current measurementwhere the voltage between terminals and ground isgreater than 60V.If t

19E. Measuring Resistance (see figure 7)WarningTo avoid damages to the Meter or to the devices undertest, disconnect circuit power and discharge all t

Page292929I. Diodes and Continuity Test3030C. Replacing the Fuses31313132GDM-356 2TitleE. Resistance TestF. FrequencyG.

20 measured resistance value (Y) – (X) = precision readings of resistance.l For high resistance (>1MΩ), it is normal taking sever

21Notel When Hz measurement has been completed, disconnect the connection between the testing leads and the circuit under test.G. Temperatur

22l The included temperature probe can only be measured up to 250oC For any mesaurement higher than that, the rod type temperature probe m

23Measurement Operation(11)Notel For testing the capacitor with polarity, connect the red test lead to anode & black test lead to cathodel Wh

24Measurement Operation(12)Notel In a circuit, a good diode should still produce a forward voltage drop reading of 0.5V to 0.8V; however; the

Sleep Mode25Turning on the Auto Display BacklightThe Meter has a built-in sensor. Therefore the DisplayBacklight turns on and off automatically depen

26General Specificationsl Maximum voltage between any Terminals and Grounding : 1000V rms.l Fused Protection for

27Accuracy Specifications(1)Accuracy: (a% reading + b digits),guarantee for 1 year.Operating temperature:23oC5oC.Relative humidity:<75%.Temperatur

28Accuracy Specifications(2)C. DC CurrentRangeResolutionOverloadProtectionAccuracy(2%+5)200mA20A100µA10mA(0.8%+1)0.5A. 250Vfast typefuse, 5x20mmUn-Fu

29E. Resistance TestAccuracy Specifications(3)200Ω2kΩ20kΩ200kΩ2MΩ200MΩRangeResolution(0.8%+3)OverloadProtectionAccuracy0.1Ω1Ω10Ω100Ω1kΩ100kΩ[5%(readin

OverviewWarningTo avoid electric shock or personal injury, read the"Safety Information" and "Rules for Safe Operation"carefully be

30Accuracy Specifications(4)RangeResolutionOverloadProtectionAccuracy(4%+3)H. Capacitance200nF2µF100µF0.1nF1nF0.1µF(5%+4)(4%+3)250V ACRemarks:Testing

31Maintenance(1)This section provides basic maintenance informationincluding battery and fuse replacement instruction.WarningDo not attempt to repair

32Maintenance(2)WarningTo avoid false readings, which could lead to possibleelectric shock or personal injury,replace the batteryas soon as the batter

33Maintenance(3)1. Install ONLY replacement fuses with the identicaltype and specification as follows and make sure the fuse is fixed firmly

Unpacking InspectionOpen the package case and take out the Meter. Checkthe following items carefully to see any missing ordamaged part:In the event y

Safety InformationThis Meter complies with the standards IEC61010: inpollution degree 2, overvoltage category (CAT. II 1000V,CAT. III 600V) and double

Rules For Safe Operation (1)WarningTo avoid possible electric shock or personal injury,and to avoid possible damage to the Meter or to theequipment un

Rules For Safe Operation (2)l Disconnect circuit power and discharge all high- voltage capacitors before testing resistance, continuity, dio

International Electrical SymbolsAC (Alternating Current).DC (Direct Current).AC or DC.Grounding.Double Insulated.Deficiency of Built-In Battery.Contin

The multimeter Structure (see figure 1)9( figure 1)GDM-356