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Keysight M9383B Microwave Signal Generator Security Guide
Safety Information
Operator is responsible to maintain safe operating conditions. To ensure safe operating
conditions, assemblies should not be operated beyond the full temperature range specified in
the Environmental and physical specification. Exceeding safe operating conditions can result in
shorter lifespans, improper assembly performance and user safety issues. When the
assemblies are in use and operation within the specified full temperature range is not
maintained, assembly surface temperatures may exceed safe handling conditions which can
cause discomfort or burns if touched. In the event of a assembly exceeding the full temperature
range, always allow the assembly to cool before touching or removing assemblies from chassis.
Keysight products are designed for use with electrical signals that are rated Measurement
Category I and Measurement Category II, as described in the International Electro-technical
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.
