Keithley 6514

Digital I/O, Analog Outputs, and External Feedback 11-9
B. Equivalent Circuit
0.1Ω
Preamp Out
Common
+
-
GND
V
Out
= V
IN
Preamp Out
Common
GND
V
Out
= -I
IN
R
F
+
-
Preamp Out
Common
GND
V
Out
Q
IN
+
-
R
L
HI
V
IN
LO
S
S
Volts
R
L
HI
I
IN
LO
S
S
Amps
R
F
R
L
HI
Q
IN
LO
S
S
Coulombs
C
F
C
F
Model 6514 Rear Panel
Measuring Device
(i.e. Chart recorder)
A. Connections
LO
HI
0.1Ω
0.1Ω
Common
+
-
R
L
HI
LO
S
S
R
F
0.1Ω
V
REF
Ohms
Preamp Out
V
Out
I
Out
R
L
Model 1683
Test Lead kit
RS232DIGITAL 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
=
=
×
Figure 11-6
Typical
preamp out
connections