Tektronix 4299-6 User manual
Keithley Instruments
Model 4299-6 Full-Rack Single-Unit
2
Rear rack-mount bracket
2602-334
2
Rack-mount extension arm
2602-335
8
Cage nut
FA-274
4
#10-32 × 3/8 in. Phillips pan-head SEMS screw
10-32×3/8PPHSEM
8
#10-32 × 5/8 in. Phillips truss-head screw
10-32×5/8PHTRSH
28775 Aurora Road
Cleveland, Ohio 44139
1-800-833-9200
tek.com/keithley
Rack-Mount Kit Installation Instructions
Introduction
The Model 4299-6 Full-Rack Single-Unit Rack-Mount Kit contains all of the hardware to mount a full-rack
Keithley Model 2651A, 2657A, or a 708B instrument in a standard 48.3 cm (19 in.) rack.
Parts List
Refer to the table below for a list of parts included in the kit.
Quantity Description Keithley part number
Tools required
Medium (#2) Phillips screwdriver
3/8-inch wrench
Flat-bladed screwdriver or cage-nut installation tool
Installation overview
Review the Installation precautions (on page 2).
Select a location in the rack:
a. Clear as much space as possible around the selected rack location.
b. Remove the cabinet side panels from the rack.
Prepare the instrument (on page 3
Install mounting hardware (on page 4).
Prepare the rack (on page 4).
Install the instrument (on page 5).
).
PA-1024 Rev. D April 2021 *PPA-102D* 1
Model 4299-6 Full-Rack Single-Unit Rack-Mount Kit Installation Instructions
Installation precautions
Observe the following safety precautions while installing instruments.
Turn off instrument power and unplug all cables before installing an instrument in a rack.
Failure to remove power before installation may cause personal injury or death from
electrical shock.
Heat sources should be mounted away from the instrument, cabling, and accessories, with
sufficient space provided between the instrument and heat source for airflow and cooling.
To prevent damaging heat build-up and ensure specified performance, make sure there is adequate
ventilation and airflow around the instrument to ensure proper cooling. Do not cover the ventilation
holes on the sides or back of the instrument. The rear vents and both side vents must be
unobstructed to properly dissipate heat.
Mount precision equipment as low as possible in the rack. Operating temperatures are cooler lower
in the rack.
2 PA-1024 Rev. D April 2021
Model 4299-6 Full-Rack Single-Unit Rack-Mount Kit Installation Instructions
Prepare the instrument
To remove the feet:
1. From the bottom of the instrument, pull out the rubber feet. See the following figure.
2. Remove the screws underneath.
Do not reinstall the feet mounting screws. Save all parts removed for future bench-top use of the
instrument.
Figure 1: Instrument rubber feet removal
PA-1024 Rev. D April 2021 3
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