Arbiter Systems 931A, Руководство по эксплуатации

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The large number at the top of the display indicates the dc voltage value
measured by Channel 1. The display below it corresponds to Channel 2,
which is not used in this example.
The display indicates the general measurement bandwidth near the
lower left-hand corner. However, the bandwidth setting has no effect on
DC measurements.
3.5.4 Frequency Measurement
The Model 931A measures fundamental frequencies within the range of
20 Hz to 500 Hz. The following paragraphs describe the steps required to
perform Frequency measurements.
3.5.4.1 Input Connections
The Model 931A can measure the frequency of AC voltages or currents
connected only on Channel 1.
Make connections in the same manner
as for magnitude measurements (see Section 3.2.2 for AC voltages, and
Section 3.2.3 for AC currents).
3.5.4.2 Configuring the Channels
Frequency measurement is permitted only on signals routed to measure-
ment Channel 1.
Configure Channel 1 by first pressing CHANNEL 1
SELECT; the following menu will appear on the display:
Use the arrow keys to locate the measurement value and press ENTER.
For example, using the arrow keys move the cursor to highlight Van to
measure an AC voltage between inputs “A” and “N”.
For frequency
measurement of an AC current at input “A”, select “Ia” in the top row.
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