Download AH401D Users Manual

AH501D User’s Manual
1.6 AH401B Compatibility
The AH401D picoammeter guarantees a strong compatibility with its
predecessor AH401B for most of the commands with one exception.
Having the AH401D the availability to have different ranges on couples of
channels - i.e. channels 1-2 can have a different gain than channels 3-4 - the RNG
command syntax is slightly different (please refer to 'RNG Command' section for
further details).
The RNG command is still supported and changes simultaneously range for all
the four channels while the replies from the device to a RNG ? command are in the
format:
RNG XY\r\n
where X is the actual measuring range for channels 1-2 and Y the one for
channels 3-4.
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