Hioki IR4051 - Page 60

57
索引
4
3
2
1
7
6
5
10
9
8
Insulation Resistance Measurement
Rated mea-
surement
voltage (DC)
50 V 125 V 250 V 500 V 1000 V
Possible
number of
measure-
ments
1000 times or more
Overload
protection
600 V AC (10 s)
660 V AC
(10 s)
600 V AC (10 s), 1200 V DC (10s) for IR4053 only
Display
update
interval
IR4052: Within 0.6 s (no update during response)
IR4051, IR4053: Within 1.0 s (no update during response)
Measurement terminal voltage characteristic
Open-circuit
voltage
1 to 1.2 times of rated measurement voltage
Lower limit
resistance
value to be
maintained
rated mea-
surement
voltage
0.05 MΩ 0.125 MΩ 0.25 MΩ 0.5 MΩ 1 MΩ
Rated
current
1 to 1.2 mA
Short-circuit
current
1.2 mA or less
Response
time
IR4052: Within 0.6 s (with resistance load)
IR4051, IR4053: Within 1.0 s (with resistance load)
Judgment
time
IR4052: Within 0.3 s, IR4051, IR4053: Within 0.8 s
(When switching from an open state to 10 times the default
judgment reference value)
HIOKI IR4051A981-09