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Extech Instruments EX350 - Specifications; Electrical Specifications

Extech Instruments EX350
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EX35x‐en‐GB_V1.212/15
22
6. Specifications
ELECTRICALSPECIFICATIONS
Accuracyisgivenas±(%ofreading+leastsignificantdigit)at23C±5Cwithrelativehumidity
lowerthan80%.Accuracyisspecifie dforaperiodofoneyearaftercalibration.
1. TemperatureCoefficientis0.1xspecifiedaccuracy/C,<18C(64.5F),>
28C(82.4F)
2. ACFunctionality:ACVandACAspecificationsareACcoupled,TrueRMS,45to400Hz;For
non‐sinusoidalwaveforms,additionalaccuracyCrestFactor(C.F.)considerationsexistas
detailedbelow:
Add3.0%forC.F.1.0~2.0;Add5.0%forC.F.2.0~2.5;Add7.0%forC.F.2.5~3.0
Function Range Resolution
Accuracy
DCVoltage
EX350 EX355
40.00mV 60.00mV 10μV
±(0.7%+5digits)
400.0mV 600.0mV 0.1mV
±(0.5%+2digits)
4.000V 6.000V 1mV
±(0.5%+3digits)
40.00V 60.00V 10mV
400.0V 600.0V 0.1V
600V 600V 1V
InputImpedance:10M(1GΩformVrange);OverloadProtection:AC/DC600V
ACVoltage
40.00mV 60.00mV 10μV
±(1.0%+3digits)
400.0mV 600.0mV 0.1mV
4.000V 6.000V 1mV
±(0.8%+3digits)
40.00V 60.00V 10mV
400.0V 600.0V 0.1V
600V 600V 1V
±(1.0%+3digits)
LPF
400.0V 600.0V 0.1V
±(4.0%+3digits)
LoZ
600V 600V ‐‐‐‐‐‐‐
±(1.2%+5digits)
Maximuminputvoltage:±600Vrms
Inputimpedance:10MΩforallranges(ACVfrequencyresponseis45~400Hz)
Allowthemetertostabilizefor10minutesafterusingLoZ(lowimpedanc e)mode
Accuracystatedfor5to100%ofrange