Philips PM3350A - Page 70

4 APPLICATIOMS
4 - 37
CALCULATE-AMPLITJDE menu
This menu is entered from the CALCULATE menu by pressing the AMPL-softkey
The following selections can be made:
- Vpp calculates the peak to peak value of the signal part between the MAIN
CURSORS. The LOCATE CURSORS indicate the signal top and bottom the
calculation is related. The calculation result is displayed in the right corner of
the top text area of the CRT.
- RMS calculates the Root Mean Square value of the waveform between the
MAIN cursors. This value is referenced to the dotted ground line. This line can
be vertically positioned by grounding (GND key) the relevant channel and then
adjusting (Y POS) the line to the desired vertical position. The calculation will
start again when the GND is released.
- MEAN calculates me mean value of the-waveform between the MAIN cursors.
This value is referenced to the dotted ground line. This line can be positioned
in the screen as explained under the RMS mode.
- ABSolute calculates the vertical voltage differences between the dotted ground
line and MAIN Cursor 1 (C1 value) and MAIN Cursor 2 (C2 value). The results
are displayed in the top text area of the CRT. The reference line can be
positioned across the screen as explained under the RMS mode.
4.3 MENUS AND MEASUREMENTS