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over-voltages often associated with local AC mains connec-

tions. The user should assume all measurement, control, and

data I/O connections are for connection to Category I sources

unless otherwise marked or described in the Manual.

Exercise extreme caution when a shock hazard is present.

Lethal voltage may be present on cable connector jacks or

test ﬁxtures. The American National Standards Institute

(ANSI) states that a shock hazard exists when voltage levels

greater than 30V RMS, 42.4V peak, or 60VDC are present.

A good safety practice is to expect that hazardous voltage

is present in any unknown circuit before measuring.

Users of this product must be protected from electric shock

at all times. The responsible body must ensure that users are

prevented access and/or insulated from every connection

point. In some cases, connections must be exposed to poten-

tial human contact. Product users in these circumstances

must be trained to protect themselves from the risk of electric

shock. If the circuit is capable of operating at or above 1000

volts,

no conductive part of the circuit may be exposed.

Do not connect switching cards directly to unlimited power

circuits. They are intended to be used with impedance limit-

ed sources. NEVER connect switching cards directly to AC

mains. When connecting sources to switching cards, install

protective devices to limit fault current and voltage to the

card.

Before operating an instrument, make sure the line cord is

connected to a properly grounded power receptacle. Inspect

the connecting cables, test leads, and jumpers for possible

wear, cracks, or breaks before each use.

When installing equipment where access to the main power

cord is restricted, such as rack mounting, a separate main in-

put power disconnect device must be provided, in close prox-

imity to the equipment and within easy reach of the operator.

For maximum safety, do not touch the product, test cables, or

any other instruments while power is applied to the circuit

under test. ALWAYS remove power from the entire test sys-

tem and discharge any capacitors before: connecting or dis-

connecting cables or jumpers, installing or removing

Keithley 7001 Quick Reference Guide

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