Datasheet

7
U1453A/U1461A insulation resistance specifications
Insulation resistance specifications with accuracy of ± (% of reading + number of least significant digit)
Test voltage Range Resolution Accuracy Test current
50 V 6 MΩ 0.001 MΩ 1.5% + 5 1 mA @ 50 kΩ
< 50 MΩ 0.01 MΩ 1.5% + 5
~60 GΩ ~0.01 GΩ 1.5% + 5
2
100 V 6 MΩ 0.001 MΩ 1.5% + 5 1 mA @ 100 kΩ
60 MΩ 0.01 MΩ 1.5% + 5
< 100 MΩ 0.1 MΩ 1.5% + 5
~60 GΩ ~0.01 GΩ 1.5% + 5
2
250 V 6 MΩ 0.001 MΩ 1.5% + 5 1 mA @ 250 kΩ
60 MΩ 0.01 MΩ 1.5% + 5
< 250 MΩ 0.1 MΩ 1.5% + 5
~200 GΩ ~0.1 GΩ 1.5% + 5
2
500 V 6 MΩ 0.001 MΩ 1.2% + 5 1 mA @ 500 kΩ
60 MΩ 0.01 MΩ 1.2% + 5
< 500 MΩ 0.1 MΩ 1.2% + 5
~200 GΩ ~0.1 GΩ 1.2% + 5
2
1000 V 6 MΩ 0.001 MΩ 1.2% + 5 1 mA @ 1 MΩ
60 MΩ 0.01 MΩ 1.2% + 5
600 MΩ 0.1 MΩ 1.2% + 5
< 1 GΩ 0.001 GΩ 1.2% + 5
~200 GΩ ~0.1 GΩ 1.2% + 5
2
1. The voltage indication on the display refers to the voltage at the DUT (device under test), and the accuracy is according to the DC voltage measurement. The marked test voltage and the actual test
voltage may be different if the test voltage is adjusted in the Setup. Refer to the table below for more details.
Ω
Mega
position (Mark) 1000 V 500 V 250 V 100 V 50 V
Default test voltage (factory) 1000 V 500 V 250 V 100 V 50 V
Deviation 2.0 V 1.5 V 1.5 V 1.5 V 1.0 V
0.2% 0.3% 0.6% 1.5% 2.0%
Adjustable test voltage (user) 10 to 1100 V 10 to 600 V 10 to 300 V 10 to 120 V 10 to 60 V
Incremental 1 V 1 V 1 V 1 V 1 V
2. Additional accuracy is to be added to the basic accuracy as shown in the table below.
Voltage 1000 V 500 V 250 V 100 V 50 V
Above 1 GΩ 500 MΩ 250 MΩ 100 MΩ 50 MΩ
Basic accuracy 1.2% + 5 1.2% + 5 1.5% + 5 1.5% + 5 1.5% + 5
Additional accuracy 0.05%/GΩ 0.1%/GΩ 0.2%/GΩ 0.5%/GΩ 1.0%/GΩ