7-6
Wave Functions (6221 Only)
Model 6220/6221 Reference Manual
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Example 3
Ranging: BEST
Amplitude: 20mA peak
Offset: 0.2mA
ARB values: range from +0.1 to -0.1
These settings will generate a waveform with a peak-to-peak value of 4mA on the
20mA range. Note that this waveform with no offset would use the 2mA range but
uses the 20mA range since the range is set based on the amplitude and offset
values.
Example 4
Ranging: BEST
Amplitude: 1mA
Offset: 0mA
ARB values: range from +1 to -1
These settings will generate a waveform with a peak-to-peak value of 2mA on the
2mA range.
Example 5
Ranging: FIXED
Amplitude:1mA
Offset:0mA
ARB values: range from +1 to -1
Current range: 20mA
These settings will generate a waveform with a peak-to-peak value of 2mA on the
20mA range. Note that if BEST was used for ranging, the waveform would have
been generated on the 2mA range as in Example 4 above.
Frequency
The frequency setting range for sine, square, ramp, and arbitrary waveforms is
from 1mHz to 100kHz. Note that the period is the reciprocal of the frequency: 1/f.
For example, a 1kHz waveform has a period of 1ms.
Offset
The offset setting allows you to add a DC offset value to a waveform.
shows an example of a 1mA offset added to a square wave with a 10mA peak
(20mA peak-to-peak) amplitude.
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