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Safety precautions
Observe the following safety precautions before using this product and any associated
instrumentation. Although some instruments and accessories would normally be used with
nonhazardous voltages, there are situations where hazardous conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are
familiar with the safety precautions required to avoid possible injury. Read and follow all
installation, operation, and maintenance information carefully before using the product.
Refer to the user documentation for complete product specifications.
If the product is used in a manner not specified, the protection provided by the product
w arranty may be impaired.
The types of product users are:
Responsible body
is the individual or group responsible for use and maintenance of
equipment, for ensuring that the equipment is operated within its specifications and
operating limits, and for ensuring that operators are adequately trained.
Operators
use the product for its intended function. They must be trained in electrical
safety procedures and proper use of the instrument. They must be protected from electric
shock and contact with hazardous live circuits.
Maintenance personnel
perform routine procedures on the product to keep it operating
properly, for example, setting the line voltage or replacing consumable materials.
Maintenance procedures are described in the user documentation. The procedures explicitly
state if the operator may perform them. Otherwise, they should be performed only by
service personnel.
Service personnel
are trained to work on live circuits, perform safe installations, and
repair products. Only properly trained service personnel may perform installation and service
procedures.
Keithley Instruments products are designed for use with electrical signals that are
measurement, control, and data I/O connections, with low transient overvoltages and must
not be directly connected to mains voltage or to voltage sources with high transient
overvoltages. Measurement Category II (as referenced in IEC 60664) connections require
protection for high transient overvoltages often associated with local AC mains connections.
Certain Keithley measuring instruments may be connected to mains. These instruments will
be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and instrument labels, do
not connect any instrument to mains.
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 30 V RMS, 42.4 V peak, or
60 V DC are present. A good safety practice is to expect that hazardous voltage is present in
any unknown circuit before measuring.
Operators of this product must be protected from electric shock at all times. The responsible
body must ensure that operators are prevented access and/or insulated from every
connection point. In some cases, connections must be exposed to potential human contact.
Product operators 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 V, no conductive
part of the circuit may be exposed.