56 34980A User’s Guide
2 Features and Functions
Channel Delay
You can control the pacing of a scan sweep by inserting a delay between
multiplexer channels in the scan list (useful for high- impedance or
high- capacitance circuits). The delay is inserted between the relay closure
and the actual measurement on the channel, in addition to any delay that
will implicitly occur due to relay settling time. The programmed channel
delay overrides the default channel delay that the instrument automatically
adds to each channel.
• You can set the channel delay to any value between 0 seconds and
60 seconds, with 1 ms resolution. You can select a different delay for
each channel. The default channel delay is automatic; the instrument
determines the delay based on function, range, integration time,
and ac filter setting (see “Automatic Channel Delays” on page 57).
• You can select a unique delay for every channel on the module.
• The channel delay is valid only while scanning. If no channels have
been assigned to the scan list, the specified channel delay is ignored
(no error is generated).
Channel delay
t
Scan List
t
Channel Delay
(0 to 60 seconds)
Ch 1 Ch 3 Ch 4Ch 2 Ch 5 Ch 6
t
1
t
3
t
4
t
6
t
2
t
5
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