Keithley Instruments, Inc.
28775 Aurora Road
Cleveland, Ohio 44139
(440) 248-0400
Fax: (440) 248-6168
www.keithley.com
Model 4200-KEY-RM Keyboard Rack Mount Kit
Packing List
Introduction
NOTE This 4200-KEY -RM Keyboard Rack Mount Kit is for installation in 4200-CAB series cabinets only.
The Model 4200-KEY-RM is a fixed rack mount kit for cabinet mounting of the Model 4200 Semiconductor Characterization
System (4200-SCS) Keyboard.
Parts list
Refer to Table 1 below for a list of parts included in the kit.
Table 1
Model 4200-KEY-RM parts list
Item Quantity Description Keithley Part No.
A 1 Keyboard T ray SL-13
B 8 Spacers ST-220-1
C 8 M5 Cage Nuts FA-274
D 8 #10-32 × 1” LG Socket Head Cap Screws —
E 4 M4 × 6 Screws —
F 2 M4 × 4 Screws —
Installation
Refer to Figure 1.
1. Fasten the front adapter and the rear adapter to the telescopic rails using the supplied screws (Item E). Make sure spacing
is correct between the front and rear cabinet rails.
2. Fasten telescopic rail assembly to the cabinet rack using the spacers (Item B) between the cabinet rack and the adapters.
Use the supplied screws (Item D) and the cage nuts (Item C) for mounting to the cabinet rack allowing for clearance when
the keyboard is pulled out of the cabinet.
3. Attach the keyboard tray (Item A) to the telescopic rails by sliding the tray onto the locating tabs of telescopic rails. Push
down on the tray to ensure it is locked into position.
4. Fasten the tray to the telescopic rails using the supplied screws (Item F).
PA-802 Rev. A / 10-01
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Figure 1
Mounting kit installation
Rear Adapter
Front Adapter
M4x4 Screws
Locating Tabs
#10-32x1” LG Socket
HD Cap Screws (Item D)
Spacers
(Item B)
Keyboard Tray
(Item A)
Telescopic Rails
Cabinet Rails
(Front)
M4x6 Screws
(Item E)
M5 Cage Nuts
(Item C)
Cabinet Rails
(Rear)
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 non-hazardous voltages, there are situations where hazardous
conditions may be present.
This product is intended for use by qualified personnel who recognize shock hazards and are familiar with the safety precautions
required to avoid possible injury. Read the operating information carefully before using the product.
General safety definitions
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 equip-
ment 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, for example, setting the line voltage
or replacing consumable materials. Maintenance procedures are described in the manual. 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, and perform safe installations and repairs of products. Only properly
trained service personnel may perform installation and service procedures.
If a screw is present, connect it to safety earth ground using the wire recommended in the user documentation.
!
The symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.
The symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of
normal and common mode voltages. Use standard safety precautions to avoid personal contact with these voltages.
WARNING heading in a manual explains dangers that might result in personal injury or death. Always read the associated
The
information very carefully before performing the indicated procedure.
The CAUTION heading in a manual explains hazards that could damage the instrument. Such damage may invalidate the
warranty.
Installation safety
Keithley products are designed for use with electrical signals that are rated Installation Category I and Installation Cate gory II,
as described in the International Electrotechnical Commission (IEC) Standard IEC 60664. Most measurement, control, and data
I/O signals are Installation Category I and must not be directly connected to mains voltage or to voltage sources with high transient over-v oltages. Installation Category II connections require protection for high transient over -voltages often associated with
local AC mains connections. The user should assume all measurement, control, and data I/O connections are for connection to
Category I sources unless otherwise marked or described in the Manual.
Users of this product must be protected from electric shock at all times. The responsible body must ensure that users are prevented access and/or insulated from every connection point. In some cases, connections must be exposed to potential human
contact. Product users 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 volts,
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, make sure 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.
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Operation safety
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 e xists when voltage le vels 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.
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. Alw ays make measurements with dry hands while standing on a dry, insulated surface capable of withstanding the voltage being measured.
Do not exceed the maximum signal levels of the instruments and accessories, as defined in the specifications and operating
information, and as shown on the instrument or test fixture panels, or switching card.
The instrument and accessories must be used in accordance with its specifications and operating instructions or the safety of the
equipment may be impaired.
When fuses are used in a product, replace with same type and rating for continued protection against fire hazard.
Chassis connections must only be used as shield connections for measuring circuits, NOT as safety earth 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.
Instrumentation and accessories shall not be connected to humans.
Maintenance and service for safety
Before performing any maintenance, disconnect the line cord and all test cables.
T o 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 Instruments. Standard fuses, with applicable national safety approvals, may be used if the rating and type are the same. 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 Instruments to maintain accuracy and functionality of the product.) If you are unsure about the applicability of a
replacement component, call a Keithley Instruments office for information.
Cleaning
To clean an instrument, use a damp cloth 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., 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.
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