Connect the instrument
Important test system safety information
This product is sold as a stand-alone instrument that may
become part of a system that could contain hazardous voltages
and energy sources. It is the responsibility of the test system
designer, integrator, installer, maintenance personnel, and service
personnel to make sure the system is safe during use and is
operating properly.
You must also realize that in many test systems, a single fault
such as a software error may output hazardous signal levels, even
when the system indicates that there is no hazard present.
It is important that you consider the following factors in your
system design and use:
• The international safety standard IEC 61010-1 defi nes
voltages as hazardous if they exceed 30 V
RMS
and 42.4 V
PEAK
or 60 V DC for equipment rated for dry locations. Keithley
Instruments products are only rated for dry locations.
• Read and comply with the specifi cations of all instruments
in the system. The overall allowed signal levels may be
constrained by the lowest rated instrument in the system.
For example, if you are using a 500 V power supply with a
300 V DC rated switch, the maximum allowed voltage in the
system is 300 V DC.
• Make sure any test fi xture connected to the system protects
the operator from contact with hazardous voltages, hot
surfaces, and sharp objects. Use shields, barriers, insulation,
and safety interlocks to accomplish this.
• Cover the device under test (DUT) to protect the operator
from fl ying debris in the event of a system or DUT failure.
• Double-insulate all electrical connections that an operator
can touch. Double insulation ensures the operator is
still protected even if one insulation layer fails. Refer to
IEC 61010-1 for specifi c requirements.
• Mak e sure all connections are behind a locked cabinet door
or other barrier. This protects the system operator from
accidentally removing a connection by hand and exposing
hazardous voltages. Use high-reliability, fail-safe interlock
switches to disconnect power sources when a test fi xture
cover is opened.
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