General-tools-and-instruments DMM333 Manual de usuario

DMM333USER’S MANUALDIGITAL POCKET MULTIMETER -AUTO RANGING

10To avoid possible electric shockor personal injury, and to avoidpossible damage to the Meteror to the equipment under test,comply with the following

11 metal. Check the test leads for continuity. Replace damaged test leads before using the Meter. Only test leads meeting CE, CAT II 500V and CA

126. Do not measure voltages above 500 V in Category II, or 300 V in Category III installations. 7. Do not measure voltage when the function/rang

139. Use the proper terminals, function, and range for all measurements. 10. Do not operate the Meter around explosive gas, vapor, or dust. 11.

14 capacitors before testing resistance, continuity, diodes, or capacitance. 14.For all DC functions, to avoid the risk of shock due to possible

15 the Meter case, to power the Meter. 18.Replace the battery as soon as the battery indicator “ ” appears. With a low battery, the Meter

16TABLE 1.ELECTRICAL SYMBOLSSYMBOL DESCRIPTIONAC (AlternatingCurrent)DC (Direct Current)Caution, risk ofelectric shockHazardous voltageBattery (Low ba

17OPERATING INSTRUCTIONS• Data Hold and Max Hold Press the “H” (Hold) button to hold present reading, and press the “M” (Max Hold) button to hold

183.Read the measured voltage on the display. If the test leads are reversed, the “ — ” indicator will appear on the display. red test lead black

19• AC Voltage Measurement Do not measure voltage higher than 500V. It may make damage to internal circuit. If the voltage is over 750 VAC, the b

2TITLE PAGEINSTRUMENT...3OVERVIEWFEATURES ...4SPECIFICATIONS...5-6SAFETY COMPLIAN

20• Resistance Measurement (Ω) To avoid electrical shock or damage to the meter when measuring resistance or continuity in a circuit, make sure

21 “OL” will be indicated on LCD display. red test lead black test lead • Diode Check1.Turn the rotary switch to the diode/continuity posit

4.If the polarity of the test leads is reversed with diode polarity, the display reading shows “OL”. This can be used to distinguish the anode and

23• Continuity Measurement1.Turn the rotary switch to the diode/continuity position. Diode check is the default setting, switch functions by pushin

24• DC /AC Current Measurement (µA/mA)1.Turn the rotary switch to the current range, if the tested current range is unknown, set it to mA setting

25 continuously, designating an over-range measurement. red test lead black test lead• Turn Off Please set the function switch to the OFF positi

26MAINTENANCE If the Meter fails, check the batteries and fuses first, review this manual to make sure that you are operating the Meter correctl

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DMM333 User’s ManualSpecifications subject to change without notice©2009 GENERAL TOOLS & INSTRUMENTS™NOTICE - WE ARE NOT RESPONSIBLEFOR TYPOGRAPHI

INSTRUMENT OVERVIEW1. LCD Display2. Function Select Button3. Rotary Switch4. DATA/MAX HOLD Button5. Test LeadsDMM3333

FEATURES• Data Hold, Max Hold Ranging• Easy to use• Continuity Beeper, Diode Test• Auto Power Off• Low Battery Indicator• Fast Sampling Rate• Built-In

5GENERAL SPECIFICATIONSFUNCTIONS DMM333Auto Ranging autoDisplay Count 2000DC Volts Auto 200mV/2/20/ 200/500VDCDC Volts ±(0.5%+5dgt)AccuracyAC Vo

6GENERAL SPECIFICATIONSFUNCTIONSInputImpedance(DCV setting)Auto OffData HoldMax DataHoldFuseBattery TypeOperatingTemperatureStorageTemperatureSize(L×W

7SAFETY COMPLIANCENote: Accuracy is given forone year at 73.4°±5.4°F (23°±3°C)RH<75%This unit was designed to besafe at least under thefollowing co

8SAFETY INFORMATIONTo avoid electric shock or injury:• Do not perform the performance tests or adjustment procedures described in this manual unless

9SAFETY INFORMATION(continued)• In this manual, a Warning identifies conditions and actions that pose hazards to the user.• A Caution identifies con