NF EC1000SA, Instruction Manual

Page: 153 / 283

5.4 MEASURE Screen
EC1000SA 5-23
5.4.2 Output current measurement
When “MEASURE” has been selected in the MISC menu, RMS value (RMS), average DC (AVG), or
peak value (PEAK) is displayed.
The initial setting (factory setting) is to display the RMS value (RMS).
See “3.4.9 Using measurement functions”.
a) RMS value RMS value of AC+DC
•
Full scale: 15.00 Arms
•
Display resolution: 0.01 Arms
•
Measurement accuracy: at 45 Hz to 65 Hz
±
(0.5% of rdg + 0.04 Arms)
at DC, 40 Hz to 550 Hz
±
(0.7% of rdg + 0.08 Arms)
(at 23
±
5°C, output current is 5% to 100% of the maximum output current)
b) Average value
Average value of AC+DC (measurement of DC)
•
Full scale:
±
15.00 A
•
Display resolution: 0.01 A
•
Measurement accuracy:
±
(|0.5% of rdg| + 0.08 A)
(at 23
±
5°C, output current is 5% to 100% of the maximum output current)
c) Peak value
Minimum current and maximum current are displayed separately
•
Full scale:
±
45.0 Apk
•
Display resolution: 0.1 Apk
•
Measurement accuracy:
±
(|2% of rdg| + 0.4 Apk)
(reference value, at 23
±
5°C, sine wave of which frequency is 45 Hz to 65
Hz)
d) Peak value hold Maximum values of | maximum current | and | minimum current |
The output current maximum peak value is displayed.
A reset operation returns the peak current hold value to 0 Apk.
See “4.2 Measurement of Inrush Current”.
•
Full scale: 45.0 Apk
•
Display resolution: 0.1 Apk