DayTronic 4000 Series User Manual

or by applying a Logic 1 level to the "–PK IN" input, WHILE THE
ABOVE PKN COMMAND IS IN EFFECT.
To place Channel 3 in "–PEAK HOLD" mode—i.e., to cause it to
continuously represent the
least positive value experienced by the
Channel 1 since "–PEAK HOLD" mode was begun—you can either
command
PKN = HLD [CR]
or apply a
Logic 0 level to the "–PK IN" input WHILE THE PKN =
TRK [CR] COMMAND IS IN EFFECT.
Fig. 17 shows the capture and hold of successively lower-valued
signal minima by the "–PEAK" channel (No. 3), after entering the
"–PEAK HOLD" mode at or prior to time t
0
. The initial signal
minimum (time t
0
) is held only until the input reaches a yet lower
value at time t
1
, at which time Channel 3 appears to begin to "track"
the input down to the first true negative peak (P
1
). This peak value
will be "captured" at time t
2
and held until a still lower input value is
App. G Analog Peak Capture
CHANNEL No. 1
(ANALOG INPUT)
t
0
t
1
t
2
t
3
t
4
CHANNEL No. 2
("+PEAK")
RESET
P
1
P
2
P
3
+ PEAK HOLD
PKP = HLD [CR]
or
LOGIC 0 at
"+PK IN" when
PKP = TRK [CR]
PKP = TRK [CR]
or
LOGIC 1 at
"+PK IN" when
PKP = TRK [CR]
+ PEAK HOLD
PKP = HLD [CR]
or
LOGIC 0 at
"+PK IN" when
PKP = TRK [CR]
Fig. 16 Capture and Hold of
Successively Lower-Valued
Maxima Using "Reset" of
"+PEAK" Channel
G.5

DayTronic 4000 Series Specifications

General

Brand	DayTronic
Model	4000 Series
Category	Measuring Instruments
Language	English