HP3458A Emulation Mode
H-4
APER
Purpose
To program the A/D integration time.
Format
APER <aperture>
Parameter
<aperture>
= 166.67E-6s to 1s
Default
1.67E-4s
Query
APER?
Returns aperture in seconds.
Description
The
APER
command programs the Model 2002 A/D integration period. The unit will accept values
between 0s and 1s, but it rounds values to meet the Model 2002’s valid parameter range.
Example
APER 1E-3
Program 1ms aperture.
ARANGE
Purpose
To enable/disable the autorange mode.
Format
ARANGE <range>
Parameter
<range>
<range> Parameter
Numeric Equivalent
Description
OFF
0
Disable autorange.
ON
1
Enable autorange.
ONCE
2
Autorange next reading.
Default
OFF
Query
ARANGE?
Returns autorange status.
Description
ARANGE
enables/disables autorange mode. The valid parameters are OFF, ON, and ONCE, which
correspond numerically to 0, 1, and 2 respectively.
Purpose
Autorange can also be controlled by the
FUNC
and
RANGE
commands. Specifying AUTO for the sec-
ond parameter of the
FUNC
command turns autoranging ON. Specifying AUTO for the first parameter
of the
RANGE
command turns autoranging ON.
Example
ARANGE ON
Enable autorange.
ARANGE 0
Disable autorange.
AZERO
Purpose
To enable/disable the autozero mode.
Format
AZERO <mode>
Parameter
<mode>
Summary of Contents for 2002
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Page 145: ...IEEE 488 Reference 3 22...
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