Philips PM3320 Operating Manual page 66

4-46E
In single channe! operation, only the selected channel {for exampie RO A) is visible. Other
possible displays are (R.. ADD), or (R.. MUL).
Ifregister RO is selected for cursor operation, the text RESTART is visible next to softkey 7
and an automatic selection of time-base setting and/or delay is possible. (See
explanation for softkey 7).
lf A versus B was selected for the selected register, a message
Register in A versus B ; no cursors possible.
is displayed and the cursors are switched off.
tf a register is selected in which no traces and settings are stored, a message
Register has no lega! settings ; no cursors
is displayed.
5 CALCULATE>
if CALCULATE is selected, the CURSOR CALCULATE menu is
displayed and various calculation routines can be selected.
The text CALCULATE is only visible if the cursors are switched on.
CURSOR
CALCULATE
RMS
dt
MEAN VALUE
MULTIPLY >
PEAK-PEAK
RISE TIME
LOCATE
RETURN
lf ADD or MULtiply is selected, the dV value is given in dots (dts).
If EXT CLOCK is selected, the dt value is given in dots (dts).
[=| [=| [=] {= o| [+ [=| [+
RMS
After pushing RMS (Root Mean Square), the RMS value of the signal detail between
the cursors is calculated. This RMS value is related io a zero level what is assumed
to be at mid-memory.
The result is visible in the top text area by RMS:+ .... V.
WaT 2E6S
Figure 4.20 RMS measurement.