Extech Instruments DC400 User manual

BAT

USERGUIDE

400AMiniDCClampMeter



ModelDC400

2 DC400‐en‐GB_V2.007/15

Introduction

ThankyouforselectingtheExtechInstrumentsModelDC400clampmeterthatmeasuresupto

400ADC.Thisdeviceisshippedfullytestedandcalibratedand,withproperuse,willprovideyears

ofreliableservice.Pleasevisitourwebsite(www.extech.com)toregisterthemeterandtocheck

forthelatestversion

ofthisUserGuide.

Features

 HighAccuracyandResolution

 Large4000countLCDdisplay

 Onetouch“AutoZero”

 DataHoldandAutoPowerOfffunctions

 30mm(1.2”)Jawdiameter

Safety

InternationalSafetySymbols

Thissymbol,adjacenttoanothersymbolorterminal,indicatestheusermustrefertothemanualfor

furtherinformation.



Thissymbol,adjacenttoaterminal,indicatesthat,undernormaluse,hazardousvoltagesmaybe

present



Doubleinsulation

SafetyNotes

 Donotexceedthemaximumallowableinputrange.

 SetthefunctionswitchOFFwhenthedeviceisnotinuse.

 Removethebatteryifthedeviceistobestoredforlongerthan60days.

 Neverdisposeofbatteriesinafire.Batteriesmayexplodeorleak.



 Nevermixbatterytypes.Alwaysinstallnewbatteriesofthesametype.

Warnings

 Setfunctionswitchtotheappropriatepositionbeforemeasuring.

 Donotmeasurecurrentonacircuitwhosevoltageexceeds600V.

Cautions

 Improperuse of this metercancausedamage,shock, injuryor death.Read and understandthisuser

manualbeforeoperatingthemeter.

 Inspect the condition of the meter for any damage before operating  the meter. Repair any damage

beforeuse.

 Iftheequipmentisusedinamanner

notspecifiedbythemanufacturer,theprotectionprovidedbythe

equipmentmaybeimpaired.

3 DC400‐en‐GB_V2.007/15

Specifications

GeneralSpecifications

Display 3‐3/4digit(4000count)LCD

Functions AmperesDC

Polarity ‘‐‘indicatesnegativepolarity

Currentsensor Halleffectsensor

Overloadindication “OL”

DCAzeroadjust Onetouchzerobutton

AutoPowerOff Afterapprox.15minutes

Displayrate 2updatespersecond(approx)

Battery One9VBattery

Operatingtemp.‐10

Cto50

C(4

Fto122

F)

OperatingHumidity <85%RH

Powerconsumption 14mA(typical)

Weight 290g(10.3oz.)includingbattery

Dimensions 208x43x30mm(8.2x1.7x1.2”)(HxWxD)

Jawopening 30mm(1.2”)

Safetyrating IEC1010CategoryII600V

RangeSpecifications

Function Range Resolution Accuracy(%ofreading) Overloadprotect

DCCurrent 40.00A 10mA

±(3.5%+3digits) 400ADC

400.0A 100mA

Description

1. Currentsensingjaw

2. Measurementtrigger

3. Functionswitch

4. DataHoldbutton

5. One‐touchDCAzerobutton

6. LCDDisplay

BAT

4 DC400‐en‐GB_V2.007/15

Operation

DCCurrentMeasurements

1. SettheFunctionswitchtothe40Aor400ADCrange.

2. Withnoconductorinthejaws,presstheZERObuttontonullthemeterdisplay.

3. PresstheTriggertoopenthecurrentsenseJaw.

4. Fullyencloseoneconductortobemeasured.Donotallowagap

betweenthetwohalvesof

thejaw.

5. ReadtheDCAvalueonthedisplay.



DataHold

TofreezethecurrentreadingontheLCD,presstheHOLDbutton.ToreleasetheDataHold

functionandreturnthemetertonormaloperation,presstheHOLDbuttonagain.



Maintenance

BatteryReplacement

1. WhenthelowbatterysymbolappearsontheLCDthebatterymustbereplaced.

2. Removetheorangerubberizedcover.

3. Removethebatterycompartmentscrew.

4. Liftoffthebatterycompartmentcoverandreplacethe9Vbattery.

5. Replacecompartmentcoverandsecurethescrew.



Neverdisposeofusedbatteriesorrechargeablebatteriesinhouseholdwaste.

Asconsumers,usersarelegallyrequiredtotakeusedbatteriestoappropriatecollectionsites,

theretailstorewherethebatterieswerepurchased,orwhereverbatteriesaresold.

Disposal:Donotdisposeofthisinstrumentinhouseholdwaste.Theuseris

obligatedtotakeend‐of‐life

devicestoadesignatedcollectionpointforthedisposalofelectricalandelectronicequipment.



Cleaning

Useonlyadryclothtocleanthemeterhousing;donotusecleaningagents,abrasives,or

solvents.



Allrightsreservedincludingtherightofreproductioninwholeorinpartinanyform

Extech Instruments DC400 User manual

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