Arbiter Systems 931A, Operation Manual

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2.2.3 Transducer
Two front panel inputs accept voltage or current transducer output signals.
These inputs share a common return, and accept signals of up to 10 volts
DC, or 100 mA DC. The Model 931A can be configured to measure the
voltage or current directly, or convert the signals for display of either
measured input units or a percentage of full-scale or percent error.
2.2.4 Timer
Timer inputs “A” and “B” accept signals of up to 300 volts peak or
DC, without regard to polarity. The timer circuitry can be triggered by
application or removal of AC/DC voltage, or by contact closure/opening.
Display results of timer measurements in either seconds, or cycles.
2.3 Measurement Channels
The Model 931A incorporates two measurement channels, referred to as
Channel 1 and Channel 2. Multiplexing of the voltage and current inputs
makes it possible to connect them to one or both of these measurement
channels, in different configurations. Figure 2.2 illustrates multiplexing of
voltage and current inputs between the two measurement channels.
Figure 2.2: Input Multiplexing
Tables 2.1 and 2.2 list the possible input configurations for the two
measurement channels. Table 2.1 lists AC Measurement Configurations
and Table 2.2 lists DC Measurement Configurations.
Using the two
measurement channels individually allows concurrent measurements of
separate signals (voltage and/or current).
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