Text preview for : 071-3190-00_(June 2014)_web.pdf part of Keithley 071-3190-00 (June 2014) web Keithley 2280 071-3190-00_(June 2014)_web.pdf
Back to : 071-3190-00_(June 2014)_w | Home
Series 2280 Precision Measurement
DC Power Supplies Quick Start Guide
Safety precautions
Observe the following safety precautions before using this product and any associated Service personnel are trained to work on live circuits, perform safe installations,
instrumentation. Although some instruments and accessories would normally be used and repair products. Only properly trained service personnel may perform installation
with nonhazardous voltages, there are situations where hazardous conditions may be and service procedures.
present. Keithley Instruments products are designed for use with electrical signals that are
This product is intended for use by qualified personnel who recognize shock hazards measurement, control, and data I/O connections, with low transient overvoltages and
and are familiar with the safety precautions required to avoid possible injury. Read and must not be directly connected to mains voltage or to voltage sources with high
follow all installation, operation, and maintenance information carefully before using transient overvoltages. Measurement Category II (as referenced in IEC 60664)
the product. Refer to the user documentation for complete product specifications. connections require protection for high transient overvoltages often associated with
If the product is used in a manner not specified, the protection provided by the local AC mains connections. Certain Keithley measuring instruments may be
product warranty may be impaired. connected to mains. These instruments will be marked as category II or higher.
The types of product users are: Unless explicitly allowed in the specifications, operating manual, and instrument labels,
do not connect any instrument to mains.
Responsible body is the individual or group responsible for use and maintenance
of equipment, for ensuring that the equipment is operated within its specifications and Exercise extreme caution when a shock hazard is present. Lethal voltage may be
operating limits, and for ensuring that operators are adequately trained. present on cable connector jacks or test fixtures. The American National Standards
Operators use the product for its intended function. They must be trained in Institute (ANSI) states that a shock hazard exists when voltage levels greater than 30 V
RMS, 42.4 V peak, or 60 V DC are present. A good safety practice is to expect that
electrical safety procedures and proper use of the instrument. They must be protected
hazardous voltage is present in any unknown circuit before measuring.
from electric shock and contact with hazardous live circuits.
Operators of this product must be protected from electric shock at all times. The
Maintenance personnel perform routine procedures on the product to keep it
operating properly, for example, setting the line voltage or replacing consumable responsible body must ensure that operators are prevented access and/or insulated
from every connection point. In some cases, connections must be exposed to
materials. Maintenance procedures are described in the user documentation. The
potential human contact. Product operators in these circumstances must be trained to
procedures explicitly state if the operator may perform them. Otherwise, they should
protect themselves from the risk of electric shock. If the circuit is capable of operating
be performed only by service personnel.
at or above 1000 V, no conductive part of the circuit may be exposed.
Do not connect switching cards directly to unlimited power circuits. They are intended Do not exceed the maximum signal levels of the instruments and accessories, as
to be used with impedance-limited sources. NEVER connect switching cards directly defined in the specifications and operating information, and as shown on the
to AC mains. When connecting sources to switching cards, install protective devices to instrument or test fixture panels, or switching card.
limit fault current and voltage to the card. When fuses are used in a product, replace with the same type and rating for continued
Before operating an instrument, ensure that the line cord is connected to a protection against fire hazard.
properly-grounded power receptacle. Inspect the connecting cables, test leads, and Chassis connections must only be used as shield connections for measuring circuits,
jumpers for possible wear, cracks, or breaks before each use. NOT as protective earth (safety ground) connections.
When installing equipment where access to the main power cord is restricted, such as If you are using a test fixture, keep the lid closed while power is applied to the device
rack mounting, a separate main input power disconnect device must be provided in under test. Safe operation requires the use of a lid interlock.
close proximity to the equipment and within easy reach of the operator. If a screw is present, connect it to protective earth (safety ground) using the wire
For maximum safety, do not touch the product, test cables, or any other instruments recommended in the user documentation.
while power is applied to the circuit under test. ALWAYS remove power from the This symbol on an instrument means caution, risk of danger. The user should refer
entire test system and discharge any capacitors before: connecting or disconnecting to the operating instructions located in the user documentation in all cases where
cables or jumpers, installing or removing switching cards, or making internal changes, the symbol is marked on the instrument.
such as installing or removing jumpers.
This symbol on an instrument means caution, risk of electric shock. Use standard
Do not touch any object that could provide a current path to the common side of the
safety precautions to avoid personal contact with these voltages.
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 This symbol on an instrument shows that the surface may be hot. Avoid personal
being measured. contact to prevent burns.
For safety, instruments and accessories must be used in accordance with the operating This symbol indicates a connection terminal to the equipment frame.
instructions. If the instruments or accessories are used in a manner not specified in the
operating instructions, the protection provided by the equipment may be impaired. If the mercury symbol is on a product, it indicates that mercury is present in the
display lamp. Please note that the lamp must be properly disposed of according to
federal, state, and local laws.
WARN IN G
Power and environmental specifications
This 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.
CAUTION This heading in the user documentation explains hazards that could
For indoor use only.
damage the instrument. Such damage may invalidate the warranty. Power supply 100 V/120 V/220 V/240 V AC, 50 Hz or 60 Hz
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables. Operating altitude Maximum 2000 m (6562 ft ) above sea level
To maintain protection from electric shock and fire, replacement components in Operating 0