Keithley 6521, Инструкция по эксплуатации, Страница: 25 / 65

Card Connections and Installation
2-5
2.4.1 Scanner card installation
Perform the following steps, and refer to Figure 2-10 to in-
stall the card assembly in the Model 6517 Electrometer:
WARNING
Turn off power to all instrumentation
(including the Model 6517
Electrometer), and disconnect all line
cords. Make sure all power is removed
and any stored energy in external
circuitry is discharged.
1. Remove the cover plate from the OPTION SLOT on the
rear panel of the Model 6517 Electrometer. To do so, pry
out the two fasteners, then remove the cover plate.
2. Slide the card edges into the guide rails inside the
electrometer.
3. Carefully push the card all the way forward until it seats
in the internal connector.
4. After the card is fully seated, tighten the mounting
screw.
WARNING
The mounting screw must be securely
fastened to ensure a proper ground con-
nection to avoid possible shock hazards.
5. After installation, connect the output cable to the elec-
trometer as discussed below.
Figure 2-9
Typical guarded volts connections (Model 6522 only)
To
6517
Input
Jack
Connect low-impedance
terminal of all10 sources
together
H
Out L
G
H
L
IN 2....9
H
L
1
10
Triax
Input
Cables
G
G
Model 6522
Guard
Guard
Guard applied
to OUT L
Note: Put Model 6517
in guard mode
To 6517 Rear Panel
common terminal
V
V