Front-Panel Operation
Input Channel Configuration and Meter Constants 4
4-33
4-67. Input Channel Configuration and Meter Constants
The system must first be configured to the required MUT and reference meter set-up.
Push the Configure Meter Constants softkey to access the configuration options. See
Figure 4-40.
gdw37.bmp
Figure 4-40. Input Channel Configuration and Meter Constants
4-68. Connect MUT and Reference Meters
Connect the MUT to channel(s) starting at the lowest numbered channel and working up.
For example, three MUT would connect to channels 1, 2 & 3. If reference meters are
used, they should be connected starting at the highest numbered channel and working
down. For example, a single reference meter would be on channel 6. Select the
combination of MUT and reference meters that you require from the lists on the left of
the configuration dialog. If Main Output is selected as the reference, MUT will be
compared against the theoretical energy output of the system. Note that if the sum of 4, 5
and 6 is used as the reference source, valid reference inputs should be applied to all three-
reference channels. Applying less than three inputs may cause the test duration to be one
count too long.
Signal debounce can be applied to inputs to prevent spurious counting. A debounced
input will ignore rapid activity in that signal. Debounce should not be applied when input
signal pulse rates are expected to be greater than 100 Hz.