Hioki 3255-50 HiTESTER, Instruction Manual

Page: 42 / 52

4.2 Accuracy
38
(rdg.: displayed value, dgt.: resolution)
Current Measurement
(3255-50 only. For accuracy of the combination of the Clamp-on
probe and the 3255-50, add the measurement accuracy of the
clamp-on probe)
Range
[A]
Accuracy
±(rdg.)±(dgt.)
Input Impedance
(Frequency range)
CLAMP
(ACA)
10.00
20.00
50.0
100.0
200.0
500
1000 ±2.0%±4
±2.0%±4
±2.0%±4
±2.0%±4
±2.0%±4
±2.0%±4
±2.0%±4
Approx.10 M
Ω
(50 to 500 Hz)
Overload protection (for one minute):
1000 VDC,1000 Vrms(sin) or 10
7
V
•
Hz
Resistance Measurement/ Continuity Check/
Diode Check
Range
[
Ω
]
Accuracy
±(rdg.)±(dgt.)
Open terminal
voltage
Notes
(Resis-
tance)
420.0
4.200 k
42.00 k
420.0 k
4.200 M
42.00 M ±1.0%±8
±0.7%±4
±1.0%±4
±1.0%±4
±2.0%±4
±5.0%±4 3.4 V or less
Approx.0.7 V
Approx.0.5 V
Approx.0.5 V
Approx.0.5 V
Approx.0.5 V
Measurement
current: 850
μ
A
max.
Varies accord-
ing to resistance
levels to be
measured.
(Continu-
ity)
420.0 ±1.0%±8 3.4 V or less
Threshold:
45
Ω
±35
Ω
(Diode)
Judgment only
(0.15V to 2.00V)
3.4 V or less
Measurement
current:
850
μ
A max.
Overload protection (for one minute):
1000 VDC,1000 Vrms(sin) or 10
7
V
•
Hz