Figure 11-5 Typical 2V Analog Output Connections - Keithley 6514 Instruction Manual

11-8 Digital I/O, Analog Outputs, and External Feedback
Figure 11-5
Typical 2V
analog output
PREAMP
connections
INPUT 250V PK
INPUT PREAMP
OFF ON
GUARD
(FOLLOWS
V, GUARD INPUT)
(PROGRAMMABLE)
Input from
Prescaler
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.
MADE IN
!
U.S.A.
IEEE-488
2V COMMON CHASSIS (CHANGE IEEE
WITH FRONT PANEL MENU)
250V PK OUTPUT
DIGITAL I/O TRIGGER LINK RS232
LINE RATING
50, 60Hz
!
60 VA MAX
PREAMP
OUT FUSE LINE
10K
2V
630mA T 100 VAC
OUTPUT
(SB) 120 VAC
COM
220 VAC
315mAT
(INTERNAL) 240 VAC
(SB)
Model 6514 Rear Panel
A. Connections
S
Model6514A
B. Equivalent Circuit
HI
LO
Model 1683
Test Lead kit
10kΩ
2V Analog Output
0.1Ω
COM
Fuse
S
Measuring Device
(i.e. Chart recorder)
R = Input Resistance of
L
measuring device