Tektronix DC 5010 Anleitung Seite 52

Operating Instructions-DC 50 1 0
COUPLING
Type:
Setting or Query
Setting Syntax:
COU AC
DC
Examples:
COUPL AC
COU DC
Query Syntax:
COU?
Query Response:
COU AC;
COU DC;
Discussion:
The COUPLING command sets the input signal coupling
for the selected channel. Valid arguments are:
AC
-
Select ac coupling for input signal.
DC
-
Select dc coupling for input signal.
When switching from DC Coupling to AC Coupling or
when the dc level of an input signal changes and the signal
is ac coupled, the following settling times are required:
x
1 probe connected
-
1.0 seconds
x 5 probe connected
-
2.5 seconds
x 1 0 probe connected
-
5.0 seconds
The above times specify the time until the Coupling ca-
pacitor is charged to within 1% of its final value and as-
sumes the source has a very low impedance.
The power-on initial setting is COU DC.
For information on selecting channels see discussion of
the CHANNEL command.
COUPLING
DT (DEVICE TRIGGER)
Type:
Setting or Query
Setting Syntax:
DT GATE
TRlG
OFF
Examples:
DT GATE
DT TRlG
DT OFF
Query Syntax:
DT?
Query Response:
DT GATE
DT TRlG
DT OFF
Discussion:
The DT command controls the instrument's response to
the GROUP EXECUTE TRIGGER <GET> interface mes-
sage. The valid arguments are:
GATE
-
In this Device Trigger mode, <GET>
controls the STARTing and STOPping of
the measurement. If measurement is
STOPped, <GET> will STAIRT measure-
ment. When STARTed, <:GET> will
STOP the measurement.
TRIG
-
In this Device Trigger mode, <GET>
causes a measurement RESE: T to be per-
formed. If the measurement is already
STARTed, this causes it to be reset and
restarted. If the measurement is currently
STOPped, this causes a single measure-
ment to be initiated.
OFF
-
In this mode a <GET> causes instru-
ment to issue an execution error (ERR
206).
-
The power on initial setting is DT OFF.
DT (DEVICE TRIGGER)