KEITHLEY 2651A-PCT-KIT Accessory Kit Instructions
- October 30, 2023
- KEITHLEY
Table of Contents
2651A-PCT-KIT Accessory Kit
Instructions
Supplied accessories
Figure 1: Model 2651A-PCT supplied accessories
The following table lists the parts that are supplied with the 2651A-PCT-KIT.
Part number | Description | Quantity |
---|---|---|
2651A-KIT-2 | 2 m (6.6 ft) low-impedance, high-current coaxial cable assembly |
1
174694600| RJ45 crossover cable| 1
CA-557-2A| 2 m (6.6 ft) 8-pin plug-to-plug screw terminal cable| 1
CA-558-2B| 2 m (6.6 ft) safety interlock cable| 1
CA-568-120A| 3 m (10 ft) green and yellow safety ground cable| 1
PA-1033x| Model 2651A safety supplement (not shown)| 1
0713411xx| Safety precautions (not shown)| 1
PA-937x| Environmental disclosure report (not shown)| 1
4299-6| Full-Rack Single-Unit Rack Mount Kit (not shown)| 1
Safety precautions
The following safety precautions should be observed before using this product
and any associated instrumentation. Although some instruments and accessories
would normally be used with nonhazardous voltages, there are situations where
hazardous conditions may be present.
This product is intended for use by 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 products are designed for use with electrical signals that are
measurement, control, and data I/O connections, with low transient over
voltages, and must not be directly connected to mains voltage or to voltage
sources with high transient over voltages. Measurement Category II (as
referenced in IEC 60664) connections require protection for high transient
over voltages often associated with local AC mains connections. Certain
Keithley measuring instruments may be connected to
mains. These instruments will be marked as category II or higher.
Unless explicitly allowed in the specifications, operating manual, and
instrument labels, do not connect any instrument to mains.
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 30 V RMS, 42.4 V peak, or 60 VDC 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 1000 V, 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.
For safety, instruments and accessories must be used in accordance with the
operating 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.
Do not exceed the maximum signal levels of the instruments and accessories.
Maximum signal levels are defined in the specifications and operating
information and shown on the instrument panels, test fixture panels, and
switching cards.
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 protective earth (safety 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 ** screw is present, connect it to protective earth (safety ground)
using the wire recommended in the user documentation.
The symbol on an instrument means caution, risk of hazard. The user must refer
to the operating instructions located in the user documentation in all cases
where the symbol is marked on the instrument.
The symbol on an instrument means warning, risk of electric shock. Use
standard safety precautions to avoid personal contact with these voltages.
The symbol on an instrument shows that the surface may be hot. Avoid personal
contact to prevent burns.
The symbol indicates a connection terminal to the equipment frame.
If this 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.
The WARNING heading in the user documentation explains hazards 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.
The CAUTION** heading with the symbol in the user documentation explains
hazards that could result in moderate or minor injury or damage the
instrument. Always read the associated information very carefully before
performing the indicated procedure. Damage to the instrument 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. Standard fuses with applicable national
safety approvals may be used if the rating and type are the same. The
detachable mains power cord provided with the instrument may only be replaced
with a similarly rated power cord. 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 to maintain accuracy and functionality of the product). If
you are unsure about the applicability of a replacement component, call a
Keithley office for information.
Unless otherwise noted in product-specific literature, Keithley instruments
are designed to operate indoors only, in the following environment: Altitude
at or below 2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F);
and pollution degree 1 or 2.
To clean an instrument, use a cloth dampened with deionized water 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.
Safety precaution revision as of June 2018.
Keithley Instruments
28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley
071326802
August 2022
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>