Notices
Operator is responsible to maintain safe operating conditions. To ensure safe
operating conditions, cards should not be operated beyond the full temperature range
specified in the datasheet. Exceeding safe operating conditions can result in shorter
lifespans, improper card performance and user safety issues. When the cards are in
use and operation within the specified full temperature range is not maintained, card
surface temperatures may exceed safe handling conditions which can cause
discomfort or burns if touched. In the event of a card exceeding the full temperature
range, always allow the card to cool before touching or removing cards from host
computer or chassis.
Acqiris 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
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Acqiris U5309A Startup Guide
