Amprobe ACD-330T Clamp-On-Multimeter User Manual

Miramar, FLPhone: 954-499-5400Fax: 954-499-5454www.amprobe.com

ConductorMarkMARKMARKGetting Acquainted With Your MeterALIGNMENT MARKSRotary SwitchTo turn the meter on and select a function, turn the rotary switch

INPUT TERMINALWARNINGTo avoid damaging the meter, do not exceed input limits shown below in Table 1:The meter has two input terminals (Figure 5) that

Figure 6. Push Buttons1. Press to selectDC or AC. Press and hold for more than 1 second to toggle, betweenPEAK and DC or AC.4. Press and hold for

Push-button OperationsThe operation of the push-buttons are outlined below. When a button is pushed, an annun-ciator lights, and the unit beeps. Turni

5. •))) / Hzm : Continuity, Frequency• In the Ω position, press this button momentarily to toggle"-)))" continuity ON/OFF.The continuity buz

POWER-ON OPTIONSSPECIAL FUNCTIONS INSTRUCTIONSSELECTING POWER -ON OPTIONSSome options can be selected only when you turn the meter on. These power-on

DYNAMIC RECORDINGThe dynamic recording mode can be used to catch intermittent and turn on or turn offsurges, verify performance, measure while you are

Figure 7. Display of Dynamic Recording13

DATAHOLDThe data HOLD function allows operator to freeze the displayed digital value while theanalog bargraph displays present readings. Press "D

ANALOG BARGRAPHThe analog bargraph display provides a 12-segment analog reading representation. The unit of the bargraph is 100 counts/bar.Figure 10.

MODEL: ACD-330TA UNIQUE CLAMP-ON MULTIMETERUSER MANUALC USLISTED

AUTO POWER OFFAND SLEEPMODEThere are two modes for power saving:1) The instrument will enter the "sleep" mode within 15 minutes, unless:1-1.

(40MΩ Range (400Ω Range)DISABLE AUTO POWER OFFWhen the meter is to be used for long periods of time you may want to

1 ms PEAK HOLDYou can use this Meter to analyze components such as power distribution transformersand power factor correction capacitors. The addition

BACKLITDISPLAY FOR EASYREADING IN THE DARKPress ❊ button for more than 1 second to toggle backlight ON/OFF. Backlight turns offautomatically after 30

Figure 16. Measuring In Rush Current.CORRECTINCORRECT20

DISTRIBUTION TRANSFORMER MEASUREMENTYou can measure current, phase imbalance between phases, and true RMS neutral current.True RMS measurement yields

Figure 17. Measuring AC Current.22

ADJUSTABLE SPEED MOTOR CONTROLLERSYou can measure input current, output current and frequency of adjustable speed motorcontrollers. The output current

Figure 18. Measuring Input/Ouput AC Current of Controller.24

AC MOTOR CURRENTMEASUREMENTYou can measure starting (inrush) current, running current, and current imbalance in AC Motor circuits. Inrush current is t

LIMITED WARRANTYCongratulations! Your new instrument has been quality crafted according to quality standards and contains quality components and work

Figure 19. Measuring AC MotorCurrent.26

Figure 20. Measuring Voltage.AC VOLTAGE MEASUREMENT1) Set the rotary switch to “ V ”.2) Insert the black test lead to “COM” terminal and red test le

RESISTANCE / CONTINUITYMEASUREMENTCAUTION: Make sure that power is removed and all capacitors have been dis-charged before measuring.1) Set the rotary

DIODE CHECKA good diode allows current to flow in one direction only.To test a diode, turn thepower off, remove the diode from the circuit, and procee

GENERALSPECIFICATIONSACDC-300 ACCESSORIES AND REPLACEMENTS PARTSAmprobe P/N DescriptionMTL-90B Safety Test Le

DC VOLTAGEELECTRICALSPECIFICATIONSRange Resolution Accuracy Overload Protection 400V 0.1V1000V 1VAccuracy is

CURRENT (1ms PEAK HOLD)Specified accuracy +/-40 digits for changes > 1 ms in duration.Range Resolution Accuracy 400A 0.1A ±

True-RMS current is very important because it directly relates to the amount of heatdissipated in wiring, transformers, and loads. Most clamp-on meter

1. The AC neutral wires must be of sufficient gauge to allow for harmonic current.2. The distribution transformer must have additional cooling to cont

WAVEFORM COMPARISONTable 3. illustrates the relationship between AC and DC components for commonwaveforms, and compares readings for TRUE RMS meters a

ACDC-3000TABLE OF CONTENTSSAFETYINFORMATION 1• INTRODUCTION 2USING THE METER SAFELY 4LCD DISPLAY ILLUSTRATION 5GETTING ACQUAINTED WITH YOUR METER 6•A

AC-COUPLEDINPUTWAVEFORMTable 3. WAVEFORM COMPARISON CHARTPEAKVOLTAGEDCCOMPONENTONLYTRUE RMS=√ ac2+dc2AC COMPONENTONLYRMS CAL OURMETERPK-PK 0-PKDC ANDA

WARNINGTO AVOID ELECTRICAL SHOCK, DO NOT PERFORM ANY SERVICINGUNLESS YOU ARE QUALIFIED TO DO SO.SERVICEIf the instrument fails to operate, check batte

Figure 24. Step 2 of Battery Replacement.Pull up slightly.Figure 22. Step 1 of Battery Replacement.38

SAFETY INFORMATIONTo ensure that youuse the meter safety, follow the safety guidelines listed below.• This meter is for indoor use, altitude up to 200

A UNIQUE CLAMP-ON MULTIMETERINTRODUCTION Measuring current accurately is a difficult job in today's industrial plants and commercialbuildings. An

Figure 1. A Unique Clamp-ON MultimeterOhm measurementVoltage measurementHand guard designfor more safety.Dynamic recordinghelps to record thevariation

WARNINGRead “SAFETYINFORMATION” before using the meter.NOTESome typical tests are provided in this manual. These tests are designed to help you under-

LCD DISPLAY ILLUSTRATION1) - : Negative Polarity Annunciator2) @OFF : Auto Power Off Enabled Annunciator3) : Low Battery Annunciator4) DC : Direct Vol