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Safety PrecautionsThe following safety precautions should be observed before using this
product and any associated instrumentation. Although 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 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 warranty may be impaired. 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 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 rated Measurement Category I and Measurement Category II, as
described in the International Electrotechnical Commission (IEC) Standard
IEC 60664. Most measurement, control, and data I/O signals are Measurement
Category I and must not be directly connected to mains voltage or to voltage
sources with high transient over-voltages. Measurement Category II connections
require protection for high transient over-voltages often associated with
local AC mains connections. Assume all measurement, control, and data
I/O connections are for connection to Category I sources unless otherwise
marked or described in the user documentation. 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. 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 1000V, 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-limited 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, ensure that 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 input power disconnect device must
be provided in close proximity 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 system and discharge any capacitors before:
connecting or disconnecting cables or jumpers, installing or removing
switching cards, or making internal changes, such as installing or removing
jumpers. Do not touch any object that could provide a current path to the common
side of the circuit under test or power line (earth) ground. Always make
measurements with dry hands while standing on a dry, insulated surface
capable of withstanding the voltage being measured. The instrument and accessories must be used in accordance with its specifications
and operating instructions, or the safety of the equipment may be impaired. Do not exceed the maximum signal levels of the instruments and accessories,
as defined in the specifications and operating information, and as shown
on the instrument or test fixture panels, or switching card. When fuses are used in a product, replace with the same type and rating
for continued protection against fire hazard. Chassis connections must only be used as shield connections for measuring
circuits, NOT as safety earth ground connections. If you are using a test fixture, keep the lid closed while power is applied
to the device under test. Safe operation requires the use of a lid interlock. If a The The The The If this The WARNING heading in the user documentation explains dangers
that might result in personal injury or death. Always read the associated
information very carefully before performing the indicated procedure. The CAUTION heading in the user documentation explains hazards
that could damage the instrument. Such damage may invalidate the warranty. Instrumentation and accessories shall not be connected to humans. Before performing any maintenance, disconnect the line cord and all test
cables. To maintain protection from electric shock and fire, replacement components
in mains circuits - including the power transformer, test leads, and input
jacks - must be purchased from Keithley Instruments. Standard fuses with
applicable national safety approvals may be used if the rating and type
are the same. Other components that are not safety-related may be purchased
from other suppliers as long as they are equivalent to the original component
(note that selected parts should be purchased only through Keithley Instruments
to maintain accuracy and functionality of the product). If you are unsure
about the applicability of a replacement component, call a Keithley Instruments
office for information. To clean an instrument, use a damp cloth or mild, water-based cleaner. Clean the exterior of the instrument only. Do not apply cleaner directly to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., a data acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing. |
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