Instructions

APPENDIX
231
Voltage and Current Accuracy
Item
Specifications
Requirements
Temperature
23 ± 5℃
Humidity
30~75% RH
Input waveform
Sine wave crest factor = 3
common-mode
voltage
0 V
Number of
displayed digits
5 digits
Frequency filter
Turn on to measure voltage or
current of 200 Hz or less
After 30 minutes after warm-up time has passed
After measurement range is changed (zero-level
compensation)
Update interval is 250 ms
Accuracy
DC
± (0.1% of reading + 0.2% of range)
0.1 Hz ≤ f ＜ 45 Hz
± (0.1 % of reading + 0.2 % of
range)
45 Hz ≤ f ≤ 66 Hz
± (0.1 % of reading + 0.05 % of
range)
66 Hz ＜ f ≤ 1kHz
± (0.1 % of reading + 0.2 % of
range)
1 kHz ＜ f ≤ 10 kHz
± (0.07 *f) % of reading + 0.3%
of range)
10 kHz ＜ f ≤ 100
kHz
± (0.5 % of reading + 0.5 % of
range) ± [{0.04x(f-10)}% of
reading]
Temperature coefficient
Add
±0.03% of reading/°C within the
range 5 to 18°C or 28 to 40°C.
When the line filter is
turned ON
45 ~ 66 Hz
Add 0.2 % of reading
< 45 Hz
Add 0.5 % of reading
Accuracy when the crest
factor is set to 6 or 6A
accuracy obtained by doubling the measurement
range error for the accuracy when the crest factor is
set to 3
Accuracy changes caused
by data update interval
When the data update interval is 100 ms, and Auto,
add 0.05% of reading to the 0.1 Hz to 1 kHz
accuracy.
Influence of temperature
changes after zero-level
compensation or range
change
Add 0.02% of range/°C to the DC voltage accuracy.
Add the following value to the DC current accuracies.
5 mA/10 mA/20 mA/50 mA/100
mA/200 mA ranges
5 µA/°C
0.5 A/1 A/2 A/5 A/10 A/20 A
ranges
500 µA/°C