Card Connections And Installation; Introduction; Handling Precautions; Connections - Keithley 7013-S Instruction Manual

3.1

Introduction

WARNING
The procedures in this section are
intended only for qualified service
personnel. Do not perform these pro-
cedures unless qualified to do so.
Failure to recognize and observe nor-
mal safety precautions could result
in personal injury or death.
The information in this section is arranged as follows:
Handling precautions  Explains precautions
3.2
that must be followed to prevent contamination
to the switch card assembly. Contamination
could degrade the performance of the switch
card.
Connections  Covers the basics for connecting
3.3
external circuitry to the two available connector
cards; the screw terminal connector card and the
multi-pin connector card.
3.4 Typical connection schemes
typical connection schemes for single card, two-
card, and two-mainframe system configurations.
3.5 Model 7013 installation and removal
vides the procedures to install and remove the
switch card assembly in the Model 7001 main-
frame.
Card Connections
and Installation
3.2
To maintain high impedance isolation, care should be
taken when handling the relay card to avoid contami-
nation from such foreign materials as body oils. Such
contamination can substantially lower leakage resis-
tances, thus degrading performance.
To avoid possible contamination, always grasp the
relay card and the connector card by the side edges or
shields. Do not touch the board surfaces or compo-
nents. On connectors, do not touch areas adjacent to
the electrical contacts. Dirt build-up over a period of
time is another possible source of contamination. To
avoid this problem, operate the mainframe and switch
card assembly in a clean environment.
If a card becomes contaminated, it should be thor-
oughly cleaned as explained in paragraph 5.2.
3.3
 Provides some
This paragraph provides the basic information needed
to connect your external test circuitry to the switch
card. It includes detailed information on the two avail-
 Pro-
able connector cards.

Handling precautions

Connections

3
3-1