Philips PM3320 Operating Manual page 49

250 ms/s dual channel digital storage oscilloscope
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4-29E
MULT. ARMD
SING. ARMD
This is indicated by a low intensified text ARMD.
'
Ifafterwards a new single shot signal should be captured the same SING. ARMD
softkey or
pushbutton CLEAR should be pushed and the text ARMD is intensified until the single shot
signal is recorded.
MAX
RESOL.
In the time base range 200 ns/div. ... 500 us/div. the resolution of the display can be
increased. Pushing MAX RESOL. activates
a higher resolution. The pilot lamp REP ONLY
indicates that a repetitive signal is required for this mode. If AVERAGE is selected, the
instrument automatically selects MAX RESOL. When MIN / MAX is active the MAX
RESOL. mode is deselected. In both situations the function is not displayed in the menu.
ROLL
If softkey ROLL is pushed, the ROLL-mode is selected and time-base speeds from 50
ms/div. ... 360 s/div, can be selected. The ROLL-mode is then automatically active. The
text RUN is intensified during an active ROLL-mode operation, the input signal is then
recorded in the register RO and is moving over the C.R.T. screen from the right to the left.
During the ROLL-mode the contents of register RO can be copied via the SAVE/PLOT
menu
in one of the registers R1, R2 or R3 if required.
RUN STOP
This text is only displayed if the ROLL-mode is selected. With this softkey the ROLL-~mode
action can immediately be stopped or started. The selected function is intensified.
In this mode no trigger selections are possible and a message
NO TRIGGER
selections possible in manual ROLL mode.
is displayed if a trigger selection is done.
TRIG.STOP
This text is only displayed if the ROLL-MODE is selected. With this softkey the ROLL-
mode action can be stopped on receipt of a trigger
If this softkey is pushed the text TRIG.STOP is intensified.
Ifatrigger delay zerois selected, then the ROLL mode continues until the trigger stop point
is at the left side of the screen.
Then the action stops. This is indicated by an intensified text STOP.
By selecting another trigger delay this point can be set more to the left (positive trigger
delay) or more to the right (negative trigger delay = pretrigger).
A new picture can be built up by depressing softkey RUN
or pushbutton
CLEAR.
For more details see section 4.3.10.3 (detailed operating information).

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