Tektronix 47E5A

47SA/DM44
MOD PG
Tracking. With the added switch in the TRACKING position, the time
measurement circuits function as for the standard DM44, with the DELAY
TIME POSITION control moving both intensified zones.
Independent. With the added switch in the INDEPENDENT position, the DELAY
TIME POSITION and ~TIME controls position their respective intensified
zones independently, and the TIME (or l/TIME) readout is adjustable over
a small range by the added side - panel ZERO ADJ screwdriver control, to
permit compensation for small Ch l/Ch 2 probe and admplifier transit-time
differences.
ZERO ADJ Procedure. To set the ZERO ADJ to compensate for vertical chan-
nel transit time differences, set the controls as follows:
47SA
A SOURCE
CH 1
VERT MODE ALT
HORIZ DISPLAY
A INT
B SOURCE STARTS
AFTER DELAY
VAR TIME/DIV Detent position
DM44
FUNCTION TIME
MODE
INDEPENDENT
2 of 5
L
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L
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