REED R5050 User manual

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R5050

TRMS AC/DC

Clamp Meter

Instruction

Manual

Model

INSTRUMENTS

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INSTRUMENTS

Table of Contents

Safety ............................................................................................ 3

Features......................................................................................... 4

Specications.............................................................................4-6

Instrument Description .................................................................. 7

Display Description ....................................................................... 7

Operating Instructions................................................................... 8

Data Hold Function .................................................................................. 8

Peak Hold Function.................................................................................. 8

MAX/MIN Function................................................................................... 8

REL Function ........................................................................................... 8

Measurement Procedures ........................................................9-12

Current Measurement .............................................................................. 9

ACA ...................................................................................................... 9

DCA ...................................................................................................... 9

Voltage measurement ............................................................................ 10

Resistance measurement....................................................................... 10

Continuity Test ....................................................................................... 11

Diode Test.............................................................................................. 11

Frequency measurement from the terminals........................................... 12

Frequency measurement with the clamp................................................ 12

Battery Replacement................................................................... 13

Product Maintenance .................................................................. 13

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INSTRUMENTS

Safety

•

Read this manual before using the meter and follow all safety guidelines.

• Usethemeteronlyasspeciedinthisinstructionmanual.Otherwise

the meters protection may be impaired.

•

Never use this meter on a circuit with voltages greater than 750Vrms @ 50/60 Hz.

• Donotoperatethemeterifthebodyortestleadslookdamaged.

• Checkthefunctionselectorrangeswitchandmakesureitisatthe

correctpositionbeforeeachmeasurementistaken.

• Donotperformresistanceandcontinuitytestsonalivecircuit.

• Exerciseextremecautionwhenmeasuringlivesystemswithvoltages

greaterthan60VCCor30VCA.

• Useextremecarewhenworkingaroundbusbarsandbareconductors.

• Donotusethemeterinoverrange/overloadconditions(OL).

•

Changethebatterywhenthe symbol appears to avoid incorrect readings.

Environmental Conditions

Altitudeupto2000meters.

OperatingTemperature:0°Cto40°C,<80%RH,non-condensing

StorageTemperature:-10°Cto60°C,<70%RH,batteryremoved

Pollution Degree: 2

Symbols

Attention!Refertooperationinstructions.

Dangerous voltage may be present at terminals.

This instrument has double insulation.

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INSTRUMENTS

Features

• MeasuresAC/DCcurrent/voltage,resistanceandfrequency

• 4000-countLCDdisplaywithanalogbargraph

• Lowbatteryandoverrangeindicators

• TrueRMSmeasurements

• Min/Max,displayhold,peakholdandrelativemode

• Diodetestandcontinuitycheckfunctions

• Cat.III600V,Cat.II1000Vsafetyrating

• Includestestleads,batteryandsoftcarryingcase

Specifications

DigitalDisplay: 33/4digitsLCDdisplaywithmaximumreading3999

AnalogDisplay: Fast40segmentanalogbargraphdisplay

Symbol &

ScaleRange: Automaticdisplayaccordingsymbols

and range input signal

Polarity: is displayed when negative signal applied to

the input

OverLoad: isdisplayedwheninputsignalexceedsrange

Sample Rate: 2 times/sec for digital data; 20 times/sec for

analog bar

LowBatteryIndication: is displayed when the battery is below the

 requiredvoltage

AutoPowerOff: Bydefault,themeterisinautopoweroffmode.

The meter will power itself off after 30 minutes

without operation. To disable the auto power

 off,pressandholdtheMAX/MIN button and

turn the meter on.

Jaw Opening: 40mm

PowerSupply: 9V,NEDA1604or6F22or006P

BatteryLife: 40hourstypically(Alkaline)

Dimensions: 9.53x2.60x1.4"(242x66x36mm) continued ...

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INSTRUMENTS

Weight: 400g(14.10oz)withbattery

OptionalAccessories: LineSplitter(R5400)

 ThermocoupleAdapter(AD-1)

 SoftCarryingCase(CA-05A)

 SoftCarryingCase(C-820)

 SafetyTestLeadSet(TL-88-1)

 FusedTestLeadSet(FC-300)

Electrical Specifications

Theaccuracyspecicationisdenedas±(…%ofreading+…count)at

23±5°C,

80%RH

TRMSforACVandACAaccuracyarespeciedfrom5%to100%ofthe

range.Fortheaccuracyadd±(1%ofreading)onCrestFactor1.4<CF<3

atfullscale&CF<6athalfscale.

ACA

Range Resolution Accuracy Overload Protection

40A 0.01A

50 ~ 60Hz

±(1.9%rdg+

5digits)

60 ~ 500Hz

±(2.5%rdg+

5digits)

1200Arms400A 0.1A

1000A 1A

DCA

Range Resolution Accuracy Overload Protection

40A 0.01A

±(2.5%reading+10digits) 1200Arms400A 0.1A

1000A 1A

ACV (Autorange)

Range Resolution Accuracy Overload Protection

400V 0.1V ±(1.5%reading+5digits)

50 ~ 500Hz 1000Vrms

750V 1V

continued ...

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INSTRUMENTS

DCV (Autorange)

Range Resolution Accuracy Overload Protection

400V 0.1V ±(1%reading+2digits) 1000Vrms

1000V 1V

Ohm (Resistance) (Autorange)

Range Resolution Accuracy Overload Protection

400Ω 0.1Ω ±(1%reading+2digits) 600Vrms

4000Ω 1Ω

(Diode)

Range TestCurrent OpenCircuitVoltage Overload Protection

1.7mAMax. 6VMax. 600Vrms

Continuity

Range ActiveRegion Overload Protection

<100Ω 600Vrms

Frequency (Hz) (Autorange)

Function Range Resolution Sensitivity Accuracy

A-Hz 4KHz 1Hz 2Arms

±(0.1%reading+

1digits)(20~10KHz)

10KHz 10Hz 5Arms

V-Hz 4KHz 1Hz 5Vrms

±(0.1%reading+

1digits)(10~10KHz)

10KHz 10Hz 10Vrms

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INSTRUMENTS

Instrument Description

1. CurrentSensingClamp

2. Clampopeninghandle

3. Function select dial

4. Hold Button

5. PeakHoldButton

6. MaximumMinimumButton

7. AC/DCSelectButton

8. Relative Button

9. LCDDisplay

10."COM"Terminal

11."+"TestTerminal

Display Description

AutoPowerOffindication

Lowbatteryindication

Direct Source indication

Alternative

PositivePeakdetectindication

Relative indication

NegativePeakdetectindication

Manual range indication

Data Hold indication

Diode function indication

Continuitywithbeeper

Polarity indication

AnalogBardisplay

Resistance

measurement indication

Voltage&Current

measurement

indication

Frequency

measurement indication

continued ...

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INSTRUMENTS

Operating Instructions

Data Hold Function

Press the HOLD button at any time to hold the current reading. To release

thedatabeingheld,simplypresstheHOLD button again.

Peak Hold Function

Thismeterisdesignedwith1mspeakholdfunctionatACA,ACV,DCA

andDCVranges.Beforeperformingapeakholdoperation,acalibration

process must be completed rst.

Todothis,pressandholdthePEAKbuttonfor2seconds."CAL"will

displayontheLCDandtheoffsetwillbecalculatedandkeptinthemeter.

Afterthecalibrationiscomplete,youcanchooseP+orP-bypressing

the PEAK + HOLDbuttonstokeepthepeakreading.Toreturnthemeter

backtonormaloperation,pressthePEAK button for 2 seconds.

Whenthefunctionrangechanges,themeterwillrequireanother

calibrationforpeakmeasurement.

MAX/MIN Function

ThismeterisdesignedwithaMAX/MINfunctionatACA,ACV,DCAand

DCVranges.

Press the MAX/MINbuttononcetosetthemetertotheMAXmode.

Press it once again to set the meter to MIN mode. Press it once again and

themeterwilldisplaythepresentreadingandwillcontinuetrackingthe

MAXandMINchanges.Thismodewillalsobeindicatedwiththeblinking

"MAX/MIN"symbol.

SetthemeterbacktonormaloperationbypressingtheMAX/MIN button

for more than 2 seconds.

continued ...

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INSTRUMENTS

REL Function

ThismeterisdesignedwithRELfunctionatACA,ACVandDCV,DCAranges.

Press the REL button to change the zero to the current reading and the

relativevaluewillshowontheLCD.Pressitonceagainandthemeter

will display the relative zero point. This mode will also be indicated with a

blinkingREL symbol.

SetthemeterbacktonormaloperationbypressingtheREL button for

more than 2 seconds.

Measurement Procedures

Current Measurement

Switch the main function selector to proper current range.

ACA

Open the clamp by pressing the jaw-opening handle and insert the cable

tobemeasuredintothejaw.ChooseACcurrentmeasurementby

pressing the AC/DCbuttonforACAreadings.

DCA

TomeasureDCcurrent,choose

DCmeasurementbypressing

the AC/DC button. Wait for the

reading to stabilize then press the

REL button to reset the reading.

Oncecompleted,insertthecable

to be measured into the jaw and

read the value.

Note:Beforetakingthismea-

surement,disconnectthetest

leads from the meter for safety.

Ifthereadingisdifculttoread,

push the HOLD

button and read the

result later.

continued ...

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INSTRUMENTS

Voltage measurement

SwitchthemainfunctionselectortoVoltageRange.ConnecttheRedtest

leadtothe"+"terminalandtheBlackonetothe"COM"terminal.Choose

ACorDCbypressingtheAC/DCbutton.Measurethevoltagebytouching

the test lead tips to the test circuit where the value of voltage is needed.

ReadtheresultontheLCDpanel.

Resistance measurement

Switchthemainfunctiontothe"Ω"range,

verify that the power line is disconnected from

thesystem.ConnecttheRedtestleadtothe

"+"terminalandtheBlackonetothe"COM"

terminal.Connectthetipsofthetestleadsto

the points where the value of the resistance is

needed.ReadtheresultontheLCDpanel.

Note: When measuring the resistance value of

acircuitsystem,makesurethepowerisoff

andallcapacitorsrequiredaredischarged.

continued ...

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