4.2 Accuracy
48
(rdg.: displayed value, dgt.: resolution)
Current Measurement
Range
[A]
Accuracy
±(rdg.)±(dgt.)
Input Impedance
(Shunt resistance)
A
42.00
420.0
4200
42.00m
420.0m
10.00*2
±1.5%±4
±1.5%±4
±1.5%±4
±1.5%±4
±1.5%±4
±1.5%±4
Approx.
10k
Approx.
100
Approx.
100
Approx.
1
Approx.
1
Approx.
0.01
A
*1
42.00
420.0
4200
42.00m
420.0m
10.00*2
±2.5%±5
±2.5%±5
±2.5%±5
±2.5%±5
±2.5%±5
±2.5%±5
Approx.
10k
Approx.
100
Approx.
100
Approx.
1
Approx.
1
Approx.
0.01
Frequency range
50 Hz to 500 Hz
Protective Fuse
42
A to 420mA range: 0.44 A/1000 V(AC/DC),
Breaking capacity10 kA
10A range: 11 A/1000 V(AC/DC), Breaking capacity 17 kA
1000 VAC, 10 kA/1000VDC
*1:The above measurement accuracies are applied to input of
at least 10% of the full scale.
Crest factor: 3 or lower
*2:For the 10-A range, the measurement time is infinite at or
below 7 A and within 1 minute for 7 A to 10 A.
Duty Factor Measurement
Range
Accuracy
±(rdg.)±(dgt.)
Frequency Range
100.0%
(5-95%)
±1.0%±15
±1.0%±50
10 Hz to 1 kHz
1 kHz to 10 kHz
Overload protection (for one minute):
1000 VDC, 1000 Vrms(sin), or 10
7
V
•
Hz
The above measurement accuracies are applicable to rectan-
gular waves (4 Vp-p) having a duty factor from 10% to 90%.
When the duty factor is less than 5.0% or greater than 95%,
“___” is displayed on the LCD.
