Agilent Technologies 34901A User Manual page 206

Chapter 5 Remote Interface Reference
Simplified Programming Overview
Using the
range
With the MEASure? and CONFigure commands, you can select the
measurement function, range, and resolution all in one command.
Use the range parameter to specify a fixed range larger than the
expected value of the input signal. You can also set the range parameter
to AUTO to select autoranging.
For frequency and period measurements, the "range" parameter is used
to compute a specific measurement resolution (see the table below).
When specifying a (non-default) resolution, both the range and
resolution parameters must be specified within the MEASure? and
CONFigure commands. Refer to pages 209 and 213 for examples.
Use the resolution parameter to specify the desired resolution for
the measurement. Setting the resolution also sets the integration time
for the measurement. The following table shows the relationship
between integration time, measurement resolution, number of digits,
and number of bits.
Integration Time
0.02 PLC
0.2 PLC
1 PLC
2 PLC
10 PLC
20 PLC
100 PLC
200 PLC
Specify the resolution in the same units as the measurement function,
not in number of digits. For example, for dc voltage measurements,
specify the desired resolution in volts. For resistance, specify the desired
resolution in ohms. For frequency, specify the desired resolution in hertz.
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and Parameters
resolution
Resolution
< 0.0001 x Range 4
< 0.00001 x Range 5
< 0.000003 x Range 5
1
< 0.0000022 x Range 6
1
< 0.000001 x Range 6
1
< 0.0000008 x Range 6
1
< 0.0000003 x Range 6
1
< 0.00000022 x Range 6
1
Digits Bits
⁄ Digits 15
1
2
⁄
Digits 18
1
2
⁄
Digits 20
2
⁄
Digits 21
2
⁄ Digits 24
2
⁄ Digits 25
2
⁄ Digits 26
2
⁄ Digits 26
2
5
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