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multimeter, 1984, and advantages of the insulation resistance measurements.
multimeter, 1984, and advantages of the insulation resistance measurements.
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机译：万用表，1984年，绝缘电阻测量的优点。
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摘要
This multimeter comprises: a voltage divider circuit 4 is connected, via a switch, to points of measurement input 3, 3 ′ of the multimeter 1 which are mounted in a housing, an analog / digital converter 6, the analog inputs 5 are connected to the voltage divider circuit 4, the reference input 7 can be supplied by means of a reference voltage source 8 of the multimeter, and the digital output signals are sent to a microprocessor 11 in order to produce the output signals or control signals intended to display a digital display device 12, as well as several shunts the current measuring 13 - 17 which are arranged so as to be connected selectively to an input terminal of the measurement 3 'by means of an arrangement with a switch function of at least one switch 18 - 22. & br / for the execution of the insulation resistance measurements, it is disposed parallel to the voltage divider circuit 4, a voltage source of insulation 29 whose voltage may be applied to the input connectors for measuring 3, 3 ′ with the interposition of a measuring resistor (shunts the current measuring 13 - 17), with a simultaneous out of the circuit of the reference voltage source 8, while the voltage drop across the terminals of the measuring resistor may be applied to the reference input 7 of the analog / digital converter 6.
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