REED R5050 User manual

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R5050
TRMS AC/DC
Clamp Meter
Instruction
Manual
Model
INSTRUMENTS
INSTRUMENTS
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INSTRUMENTS
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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
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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
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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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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
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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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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
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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.
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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.
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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.
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