1
Safety Precautions
The following safety precautions should be observed before
using this product and any associated instrumentation. Al-
though some instruments and accessories would normally be
used with non-hazardous 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 pre-
cautions required to avoid possible injury. Read the operat-
ing information carefully before using the product.
The types of product users are:
Responsible body
is the individual or group responsible for
the 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, for example, setting the line
voltage or replacing consumable materials. Maintenance
procedures are described in the manual. The procedures ex-
plicitly 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, and
perform safe installations and repairs of products. Only
properly trained service personnel may perform installation
and service procedures.
Keithley products are designed for use with electrical signals
that are rated Installation Category I and Installation Catego-
ry II, as described in the International Electrotechnical Com-
mission (IEC) Standard IEC 60664. Most measurement,
control, and data I/O signals are Installation Category I and
must not be directly connected to mains voltage or to voltage
sources with high transient over-voltages. Installation Cate-
gory II connections require protection for high transient
