Owner's manual

9
3.2 Accuracy
Test conditions:
Temperature and humidity: 23±5ºC at 80%RH or less
Accuracy: ±(% of reading + digits)
Note: Each response time is a value to rated accuracy within selected range.
DC Voltage Measurement V
Range Resolution Accuracy Input Resistance
Maximum
Input Voltage
600mV 0.1mV
0.09+2
10MΩ
1000V
DC
1000V
rms AC
6V 0.001V 11MΩ
60V 0.01V
10MΩ600V 0.1V
1000V 1V 0.15+2
NMRR: 60dB or more 50/60Hz±0.1%
CMRR: 120dB or more 50/60Hz (Rs=1kΩ)
Response time: 1 sec max.
AC Voltage Measurement V
AC Coupling: RMS value detection, sine wave
MEAN value detection and RMS value calibration (KEW1052 only)
Range Resolution
Accuracy
Input
Impedance
Maximum
Input
Voltage
50/60Hz 40Hz to 500Hz 500Hz to 1kHz
600mV 0.1mV
0.5+5 1+5
1.5+5
10MΩ, <200pF
1000V
rms AC
1000V
DC
6V 0.001V 11MΩ, <50pF
60V 0.01V
10MΩ, <50pF600V 0.1V
1000V 1V -
Accuracy: At 5 to 100% of range and 1000V range is 200 to 1000V.
less than 1500V peak
For non-sinusoidal waveforms, add ±(2% + 2% of full scale), for Crest factor<3.
CMRR: 60dB or more DC to 60Hz (Rs=1kΩ)
4 counts or less is corrected to 0, Response time: 2 sec max.
DC Current Measurement A
Range Resolution Accuracy Voltage Drop
Maximum
Input Current
600μA 0.1μA
0.2+2
< 0.12mV/μA
440mA Protected by
a 440mA/1000V fuse.
6000μA 1μA
60mA 0.01mA
< 3.3mV/mA
440mA 0.1mA
0.5+56A 0.001A
< 0.1V/A
10A Protected by
a 10A/1000V fuse.
10A 0.01A
Response time: 1 sec max.