YF-509 Digital Insulation Tester
Application
The unit has select able long duration and momentary operation switches for high resistance measurements.Features
DC Voltage
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Range
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Resolution
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Accuracy
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Input
Impedance
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Overload
Protection
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DCV
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1V
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±(0.5% +1)
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10MΩ
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DC 1000V
AC 750V rms
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AC Voltage
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Range
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Resolution
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Accuracy
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Input
Impedance
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Overload
Protection
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DCV
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1V
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±(0.8% +4)
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10MΩ
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DC 1000V
AC 750V rms
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Insulation High-resistance
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Range
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Resolution
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Accuracy
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Tolerance
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200M/250V
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0.1MΩ
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±(3%+3)
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0.4mA max
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200M/500V
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0.1MΩ
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0.9mA max
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2000M/1000V
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1MΩ
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±(3%+5)
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1.7mA max
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Measurement Voltage
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Range
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Terminal Measurement
open Voltage
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Supported Range
Terminal Voltages
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250V/50MΩ
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Rated voltage ±10%
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When the resistance is in the 1MΩrange, the rated
voltage should reach up to 90%. |
500V/1000MΩ
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Rated voltage ±10%
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Rated voltage ±10%
When the resistance is in the 20MΩrange, the rated voltage |
1000V/2000MΩ
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Rated voltage ±10%
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When the resistance is in the50MΩ range,
the rated voltage should reach up to 90%. |