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9. INTRODUNTION OF OPTIONS
With the SM-8200 Series super megohmmeters, any of the following options
can be provided as needed. However, note that some of them can be installed
at factory.
9.1 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.
One of the outp uts provides a linear DC signal directly prop ortional to the
measured resistance (RP-8000), and the other outputs a 1/R DC signal which
is inversely prop ortional to the measured resistance (RI-800 0).
9.1.1 D C Output, RP-8000
– Directly prop ortional or line ar to resistance
An insulation resistance can be obtained when the measuring voltage is
divided by the current flowing throug h the circuit. When the measuring
voltage is constant, if the insulation resistance is doub led, the current
flowing through the circuit is halved. The RP-8000 DC output is desig ned
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 1 0 times minimum value
2) Usage
Measure the insulation resistance of a sample with the method
desig ned in 6.1 Measuring Method. There is no limitation in the
applications in re lation with the provision of the RP-8000 DC output.