GW Instek GDM-397 - Accuracy Specifications; DC Voltage

GENERAL SPECIFICATIONS
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Accuracy Specifications
Accuracy: ±(a% reading + b digits), guaranteed for 1 year.
Operating temperature：18˚C ~28˚C.
Relative humidity: <75%.
DC Voltage
GDM-397
Range
Resolution
Accuracy
Input Impedance
Fixed Value Input
40mV
0.01mV
±(0.8%+3)
Around >3000MΩ
1000V dc / 750V ac
400mV
0.1mV
±(0.8%+3)
4V
0.001V
±(0.5%+1)
Around 10MΩ
40V
0.01V
400V
0.1V
1000V
1V
±(1.0%+3)