Manual - 8500A Series Peak Power Meter - Giga-tronics

Operation
b. Enter the Part number as follows:
[MENU] (5) [F2] [n] [UNITS]
(n is a number up to 12 digits).
6. The date and time are always plotted. The date and time are obtained from the internal, real-time
clock of the PPM which is kept alive by a battery when the instrument is turned off. If it is
desired to check and/or change the date and time before plotting, press [MENU] (5) [F3] [F3] (if
clock is correct)
or, to change the clock, [MENU] (5) [F3] [F1] [mmddyy] [UNITS] [hhmmss] [UNITS] [F3]
where mmddyy = month, day, year; and hhmmss = hours, minutes, seconds
7. Enter the Graph Mode. The Delay Difference Timing will be plotted if it has been activated on
the readout. See Figures 2-8, 2-10, and 2-9 for examples of the types of plots available from the
PPM.
8. Before the PPM can make a plot, it must first complete one sweep of the pulse profile. Assuming
the profile is completed, press [MENU] (2) [F3] [F1] for a paper plot or [MENU] (2) [F3] [F2]
for a transparency plot.
9. If there is any GPIB bus error, an alarm will sound. This indicates that when the PPM checked
the IEEE Bus, it was unable to activate the plotter. Some possible causes for this might be an
incorrect address setting, the plotter not set up correctly, or the plotter is turned off or out of
paper. If this situation occurs, press [F2] to return the PPM to its previous mode of operation.
This feature allows PPM operation to continue despite bus hang-ups.
The GPIB bus error alarm consists of 2 audible beeps and a display of GPIB BUS ERROR
A single beep indicates that there are no problems, and that plotting will begin as soon as the trace has
been drawn on the display screen.
Once the plot has started, control of the PPM can be regained before the plot has finished. This gives the
ability to proceed with further testing without having to wait for the plotter to complete its task.
If it is necessary to Abort the plot for some reason, press [MENU] (6) [F1]. The plot will be terminated
as soon as possible.
Manual No. 20790, Rev C, November 1998 2-31
Superceded by Revision D, March 2009