Hioki IR4055 - Page 66

60
Basic and Accuracy Specications
Insulation Resistance Measurement (continued)
1st effective
measuring range
2nd effective
measuring range
Other measuring
range
Fluctuations caused
by temperature
effects (E
3
)*
±4% rdg
(0°C to 50°C)
±8% rdg
(0°C to 50°C)
±2% rdg ±6 dgt
(0°C to 50°C)
±8% rdg
(Greater than or
equal to −25°C and
less than 0°C, or
greater than 50°C
and less than or
equal to 65°C)
(Only for IR4056
and IR4057-50)
±16% rdg
(Greater than or
equal to −25°C and
less than 0°C, or
greater than 50°C
and less than or
equal to 65°C)
(Only for IR4056
and IR4057-50)
±4% rdg ±12 dgt
(Greater than or
equal to −25°C
and less than 0°C,
or greater than
50°C and less than
or equal to 65°C)
(Only for IR4056
and IR4057-50)
Effect of humidity
±4% rdg and within
allowance
±8% rdg and within
allowance
±2% rdg ±6 dgt
Effect of magnetic
eld
±2.4% rdg ‒ ‒
Fluctuations caused
by positioning effect
(E
1
)
Not applicable
Fluctuations caused
by supply voltage
effects (E
2
)
±4% rdg and within
allowance
±8% rdg and within
allowance
±2% rdg ±6
dgt and within
allowance
Effects of
capacitance
components
Within ±10% for capacitance of 5 μF or less (including
variation)
*: Applicable to the operating temperature range other than 18°C to 28°C.
Rated
measurement
voltage (DC)
50 V 125 V 250 V 500 V 1000 V
Possible number of
measurements
1000 times or more
Overload protection
600 V AC (10 s)
660 V AC
(10 s)
660 V AC (10 s), 1200 V DC (10 s) (IR4053 and IR4055 only)
HIOKI IR4057B961-00