Hioki SM-8216, Инструкция по эксплуатации, Страница: 37 / 44

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7. OPTIONAL ACCESSORIES
With the SM-8216, SM-8200 Series and SM-8000 Series super
megohmmeters, any of the following options can be provided as needed.
However, note that some of them can be installed at factory, only.
7.1 DC Signal Outputs
Either one of two different types of DC signal outputs can be optionally
installed with the unit at factory. The output can be used to make a
permanent record of measured data by connecting a chart recorder such as
the HIOKI EPR-3000 Series.
One of the outputs provides a linear DC signal directly proportional to the
measured resistance (RP-8000), and the other outputs a 1/R DC signal
which is inversely proportional to the measured resistance (RI-8000).
7.1.1 DC Output, RP-8000 – Directly proportional or linear to resistance
An insulation resistance can be obtained when the measuring voltage is
divided by the current flowing through the circuit. When the measuring
voltage is constant, if the insulation resistance is doubled, the current
flowing through the circuit is halved. The RP-8000 DC output is designed
to convert the measured insulation resistance into a DC signal directly
proportional to the resistance.
1) Specifications
Output Range: : From minimum value of each range of super
megohmmeter to 10 times minimum value(see 2.1)
Output Voltage: 1V/minimum value , 10 V/10 times minimum value
Output Accuracy: Within 10% of displayed value in the range from
minimum value to 10 times minimum value
2) Usage
Measure the insulation resistance of a sample with the method
designed in 6.1 Measuring Method. There is no limitation in the
applications in relation with the provision of the RP-8000 DC output.
Fig. 7.3.1 illustrates an example connection with the HIOKI EPR-3000
Series chart recorder.