Model 7014 Installation And Removal - Keithley 7014 Manual

Card Connections &
installation
3.5 Model 7014 installation and
removal
This paragraph explains how to install and remove the
Model 7014 multiplexer card assembly from the Model
7001 mainframe.
WARNING
Installation or removal of the Model
7014 is to be performed by qualified
service personnel. Failure to recog-
nize and observe standard safety pre-
cautions could result in personal
injury or death.
NOTE
Make sure your external circuitry is
wired to the card (as explained in
paragraph 3.3.1) before installing the
card assembly in the Model 7001
mainframe.
CAUTION
To prevent contamination to the mul-
tiplexer card that could degrade per-
formance, only handle the card
assembly by the edges and shields.
Multiplexer card installation
Perform the following steps to install the multiplexer
card assembly in the Model 7001 mainframe:
WARNING
Turn off power from all instnunenta-
tion (including the Model 7001 main-
frame) and disconnect their line
cords. Make mm all power is re-
moved and any stored energy in ex-
ternal circuitry is discharged.
1. Mate the connector card to the relay card if they are
separated. Install the supplied 4-40 screw at the end
of the card to secure the assembly (see Figure 3-4).
Make sure to handle the cards by the edges and
shields to prevent contamination.
2. Facing the rear panel of the Model 7001, select the
slot (CARD 1 or CARD 2) that you wish to install the
card in.
3. Referring to Figure 3-13, feed the multiplexer card
assembly into the desired slot such that the edges of
the relay card ride in the rails.
4. With the ejector arms in the unlocked position, push
the card assembly all the way into the mainframe
until the arms engage into the ejector cups. Then
push both army inward to lock the card into the
mainframe.
5. Tighten the thumb screw shown in Figure 3-13.
WARNING
Tighten the thumb screw to ensure
proper chassis ground.
Multiplexer card removal
To remove the multiplexer card assembly, first loosen
the thumb screw shown in Figure 3-13, then unlock the
card by pulling the latches outward, and pull the card
assembly out of the mainframe. Remember to handle
the card assembly by the edges and shields to avoid
contamination that could degrade performance.
3.12