3.2 Accuracy
Standard test conditions
(1) Ambient temperature:
23°C ± 5°C
(2) Relative humidity:
45% to 75% RH (no condensation)
() Orientation:
Horizontal or standing
(4) External magnetic fields: Terrestrial magnetic field only
* Each of the response times indicates the time it takes for the accuracy to fall within the
specified range.
Accuracy: ± (% of r digits)
DC Voltage Measurement V,
mV
Range
Resolution
Accuracy
Input Resistance
Maximum Input
Voltage
600 mV
0. mV
0.09% + 2
10 MΩ or more
000 VDC
000 Vrms AC
6 V
0.00 V
0.09% + 1
Approx. 11 MΩ
60 V
0.0 V
Approx. 10 MΩ
600 V
0. V
000 V
V
0.1% + 1
NMRR: 60 dB or more, 50/60 Hz ± 0.1%
CMRR: 120 dB or more, 50/60 Hz (Rs = 1 kΩ)
Response time: Within second
AC Voltage Measurement
V,
mV
AC coupling, rms value detection: sine wave
Range Resolution
Accuracy
Input
Impedance
Maximum
Input
Voltage
0/60 Hz
0 Hz to
00 Hz
00 Hz to
kHz
600 mV
0. mV
0.5% + 5 1% + 5
1.5% + 5
0 MΩ or more, <200 pF
000 VDC
000 V
rms AC
6 V
0.00 V
Approx. 11 MΩ, <50 pF
60 V
0.0 V
Approx. 10 MΩ, <50 pF
600 V
0. V
000 V
V
—
For a range of 5 to 100%, the accuracy for the 1000 V range is 200 V to 1000 V
CMRR: 60 dB or more, DC to 60 Hz (Rs = 1 kΩ)
For nonsinusoidal waveforms whose crest factor is less than 3, add ±(2% of r 2% of range)
to the accuracy.
For the 000 V range, the peak voltage is 00 V or less
Response time: Within 2 seconds
