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U1451A Datasheet(PDF) 7 Page - Keysight Technologies |
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U1451A Datasheet(HTML) 7 Page - Keysight Technologies |
7 / 20 page 07 | Keysight | U1450A/U1460A Insulation Resistance Testers - Data Sheet Speciications U1451A/U1452A/U1452AT insulation resistance speciications 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 2% + 5 1 mA @ 50 kΩ < 50 MΩ 0.01 MΩ 2% + 5 ~60 GΩ ~0.01 GΩ 2% + 52 100 V 6 MΩ 0.001 MΩ 2% + 5 1 mA @ 100 kΩ 60 MΩ 0.01 MΩ 2% + 5 < 100 MΩ 0.1 MΩ 2% + 5 ~60 GΩ ~0.01 GΩ 2% + 52 250 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% + 52 500 V 6 MΩ 0.001 MΩ 1.5% + 5 1 mA @ 500 kΩ 60 MΩ 0.01 MΩ 1.5% + 5 < 500 MΩ 0.1 MΩ 1.5% + 5 ~200 GΩ ~0.1 GΩ 1.5% + 52 1000 V 6 MΩ 0.001 MΩ 1.5% + 5 1 mA @ 1 MΩ 60 MΩ 0.01 MΩ 1.5% + 5 600 MΩ 0.1 MΩ 1.5% + 5 < 1 GΩ 0.001 GΩ 1.5% + 5 ~200 GΩ ~0.1 GΩ 1.5% + 52 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 mea- surement. The default test voltage is shown in the table below. Ω Mega position (Mark) 1000 V 500 V 250 V 100 V 50 V Test voltage 1000 V 500 V 250 V 100 V 50 V Test accuracy 0% to +20 % 0% to +20 % 0% to +20 % 0% to +20 % 0% to +20 % The test voltage across a resistor of a value of UN × (1000 Ω/V) shall not differ by more than 10% relative to noload (open) voltage, as a result of possibly present AC voltage components in the output voltage, when a capacitor of 1 µF is connected in parallel with the insulation resistance to be measured. UN represents the nominal output test voltage. 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 1.5% + 5 1.5% + 5 1.5% + 5 2.0% + 5 2.0% + 5 Additional accuracy 0.1%/GΩ 0.2%/GΩ 0.4%/GΩ 1.0%/GΩ 2.0%/GΩ |
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