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Channel delay – Agilent Technologies L4400 User Manual

Page 89

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Operating and Programming

3

L4400 User’s Guide

77

You can specify a sweep count in conjunction with a trigger count and

a sample count. The three parameters operate independent of one
another, and the total number of readings returned will be the
product of the three parameters.

You can store at least 500,000 readings in memory and all readings

are automatically time stamped. If memory overflows, the new
readings will overwrite the first (oldest) readings stored; the most
recent readings are always preserved.

The

CONFigure

and

MEASure?

commands automatically set the sweep

count to 1 sweep.

The instrument sets the sweep count to 1 after a Factory Reset

(

*RST

command). An Instrument Preset (

SYSTem:PRESet

command) or

Card Reset (

SYSTem:CPON

command) does not change the setting.

The following command sets the sweep count:

SWEep:COUNt

Channel Delay

Usage:

L4421A 40- Channel Armature Multiplexer

You can control the pacing of a scan sweep by inserting a delay between
the L4421A channels in the scan list (useful for high- impedance or
high- capacitance circuits). The delay occurs following relay closure and
any inherent settling time, and before the generation of the “channel
closed” signal that would externally trigger a separate DMM (see
“Scanning with External Instruments”).