Extech Instruments MA140

MA140‐en‐GB_V1.01/15
10
Specifications
ELECTRICALSPECIFICATIONS
Function Range Resolution Accuracy(ofreading)50/60Hz
ACCurrent
60.00A 0.01
±(2.0%+5digits)
300.0A 0.1
Allspecificationsarevalidfrom10%to100%ofeachrange
TheLCDdisplays0countswhenthereading<10counts
LowPassFilter
(LPF)
60.00A 0.01
±(3.5%+5digits)
300.0A 0.1
Allspecificationsarevalidfrom10%to100%ofeachrange
TheLCDdisplays0countswhenthereading<10counts
Cut‐offfrequency(‐3dB):160Hz
Attenuationcharacteristic:‐24dbperoctave(approximately)
Function Range Resolution Accuracy(ofreading)
InrushCurrent
300.0A 0.1 ±(3.5%+5digits)
Integrationtime:100ms
Triggercurrent(threshold):5A

Volt‐Detection
80V~600VAC n/a n/a
Thetipoftheclampofferstheoptimumsensitivity
Notes:
 Clamppositionerror:±2%ofreading.Maximum±4%nearclampjawopening.
 AdjacentConductionInfluenceofJaw:<0.08A/A
 Accuracyisgivenas±(%ofreading+leastsignificantdigit)at23C±3Cwithrelative
humiditylowerthan80%.Accuracyisspecifiedforaperiod
ofoneyearaftercalibration.
 ACAspecificationsareforACCoupled,TrueRMS.Fornon‐sinusoidalwaveforms,additional
accuracyCrestFactor(C.F.)considerationsexistasdetailedbelow:
Add3.0%forC.F.1.0~2.0
Add5.0%forC.F.2.0~2.5
Add7.0%forC.F.2.5~3.0
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