Kikusui TOS9301 - Page 292

292 User’s Manual TOS93 Series
Specifications | Insulation resistance test section
Accuracy
1 2 3
(when GND is
set to Guard)
(i: measured
current)
(R:
measurement
resistance)
5 nA ≤ i ≤ 50 nA
4
500.000 MΩ ≤ R < 1.000 GΩ: ±(15 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(15 %
of setting + 15 MΩ)
10.000 GΩ ≤ R ≤ 100.000 GΩ: ±(20 %
of setting + 210 MΩ)
50 nA < i ≤ 100 nA
*4
200.000 MΩ ≤ R < 1.000 GΩ: ±(10 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(10 %
of setting + 15 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(10 %
of setting + 60 MΩ)
50.000 GΩ ≤ R ≤ 100.000 GΩ: ±(20 %
of setting + 210 MΩ)
100 nA < i ≤ 200 nA
5
100.000 MΩ ≤ R < 1.000 GΩ: ±(7 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 2.000 GΩ: ±(7 % of setting + 15
MΩ)
2.000 GΩ ≤ R < 10.000 GΩ: ±(7 % of setting + 20
MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(7 % of setting + 110
MΩ)
200 nA < i ≤ 1 µA
*5
10.000 MΩ ≤ R < 100.000 MΩ: ±(5 % of setting + 0.06 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(5 % of setting + 0.51
MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(5 % of setting + 15
MΩ)
10.000 GΩ ≤ R < 25.000 GΩ: ±(5 % of setting + 60
MΩ)
1 µA < i ≤ 1 mA
*5
0.001 MΩ ≤ R < 10.000 MΩ: ±(2 % of setting + 0.013 MΩ)
10.000 MΩ ≤ R < 100.000 MΩ: ±(2 % of setting + 0.04
MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(2 % of setting + 0.31
MΩ)
1.000 GΩ ≤ R < 5.000 GΩ: ±(2 % of setting + 13
MΩ)
Accuracy
6
(when GND is
set to Low)
(i: measured
current)
(R:
measurement
resistance)
5 nA ≤ i ≤ 50 nA
*4
500.000 MΩ ≤ R < 1.000 GΩ: ±(25 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(25 %
of setting + 15 MΩ)
10.000 GΩ ≤ R ≤ 100.000 GΩ: ±(30 %
of setting + 210 MΩ)
50 nA < i ≤ 100
nA
*4
200.000 MΩ ≤ R < 1.000 GΩ: ±(20 % of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(20 %
of setting + 15 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(20 %
of setting + 60 MΩ)
50.000 GΩ ≤ R ≤ 100.000 GΩ: ±(30 %
of setting + 210 MΩ)
100 nA < i ≤ 200 nA
*5
100.000 MΩ ≤ R < 1.000 GΩ: ±(10 %
of setting + 0.51 MΩ)
1.000 GΩ ≤ R < 2.000 GΩ: ±(10 %
of setting + 15 MΩ)
2.000 GΩ ≤ R < 10.000 GΩ: ±(10 %
of setting + 20 MΩ)
10.000 GΩ ≤ R < 50.000 GΩ: ±(10 %
of setting + 110 MΩ)
200 nA < i ≤ 1 µA
*5
10.000 MΩ ≤ R < 100.000 MΩ: ±(5 % of setting + 0.06 MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(5 % of setting + 0.51
MΩ)
1.000 GΩ ≤ R < 10.000 GΩ: ±(5 % of setting + 15
MΩ)
10.000 GΩ ≤ R < 25.000 GΩ: ±(5 % of setting + 60
MΩ)
1
µA < i ≤ 1 mA
*5
0.001 MΩ ≤ R < 10.000 MΩ: ±(2 % of setting + 0.013 MΩ)
10.000 MΩ ≤ R < 100.000 MΩ: ±(2 % of setting + 0.04
MΩ)
100.000 MΩ ≤ R < 1.000 GΩ: ±(2 % of setting + 0.31
MΩ)
1.000 GΩ ≤ R < 5.000 GΩ: ±(2 % of setting + 13
MΩ)
1 Making judgments on 200 μA or less requires at least 3 seconds after the rise time ends. Making judgments when the
low pass filter is set to on requires at least 10 seconds after the rise time ends.
2 Humidity: 70 %rh or less (no condensation), when there is no interference caused by wobbly test leads or other
problems.
3 If the grounding mode (GND) is set to low in a highly humid environment, leakage current to ground will be generated
from the high-voltage wiring sections inside the product and the high-voltage wiring sections between the product and
the EUT. This leakage current ranges from several nA to several tens of nA depending on the usage and wiring
conditions of the optional TOS9320 high voltage scanner and greatly affects measurement accuracy. The effects of
leakage current can be reduced by making measurements with the offset enabled.
4 Add 10 % to the accuracy when measuring 100 V or less.
5 Add 5 % to the accuracy when measuring 100 V or less.
6 When the measured current is limited to 100 nA or more (no condensation) when the humidity is 50 %rh or less, no
external disturbance is present such as swinging test leads, and the offset is enabled.
Item Specifications