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11-8
Digital I/O, Analog Outputs, and External Feedback
Preamp out
The preamp output of Model 6514 follows the signal amplitude applied to the input terminal
The preamp output provides a guard output for volts measurements. It can be used as an invert-
ing output or with external feedback in the amps and coulombs modes. Connections and equiv-
alent circuits for the preamp output are shown in Figure 11-6. Full-range outputs for the various
functions and ranges are listed in Table 11-3.
Model 1683
Test Lead kit
RS232
DIGITAL I/O
PREAMP
250V PK
2V
OUTPUT
COMMON
CHASSIS
120
FUSE
LINE
630mA
LINE RATING
50, 60Hz
60 VA MAX
T
(SB)
100 VAC
120 VAC
315mAT
(SB)
220 VAC
240 VAC
INPUT 250V PK
IEEE-488
(CHANGE IEEE
WITH FRONT PANEL MENU)
TRIGGER LINK
!
!
MADE IN
U.S.A.
V,
GUARD
(PROGRAMMABLE)
OFF
ON
GUARD
(FOLLOWS
INPUT)
(INTERNAL)
INPUT
PREAMP
10K
PREAMP
OUT
2V
OUTPUT
COM
Fuse
Model 6514 Rear Panel
R
L
= Input Resistance of
measuring device
Input from
Prescaler
COM
S
+
-
S
0.1
Ω
10k
Ω
Model6514A
Measuring Device
(i.e. Chart recorder)
2V Analog Output
A. Connections
LO
HI
B. Equivalent Circuit
Figure 11-5
Typical 2V
analog output
connections
Содержание 6514
Страница 203: ...14 CommonCommands...
Страница 207: ...15 SCPISignalOriented MeasurementCommands...
Страница 235: ...18 PerformanceVerification...
Страница 254: ...19 Calibration...
Страница 274: ...20 RoutineMaintenance...
Страница 278: ...A Specifications...
Страница 282: ...B StatusandErrorMessages...
Страница 288: ...C GeneralMeasurement Considerations...
Страница 294: ...D DDCEmulationCommands...
Страница 299: ...E ExamplePrograms...
Страница 306: ...F IEEE 488BusOverview...
Страница 320: ...G IEEE 488andSCPI ConformanceInformation...
Страница 324: ...H CalibrationOptions...