Datasheet

Model 4299-3 Installation Instructions
2 PA-942 Rev. A / May 2007
Installation
The following procedure outlines the installation of the rack mount kit.
WARNING Make sure the instrument that is being installed is in a powered down state with all
cables unplugged. Failure to install an instrument in a discharged state may cause an
electrical shock or death.
CAUTION • Place the hottest equipment (for example, the power supply), at the top of
the rack
• Place precision equipment as low as possible in the rack (where
temperatures are cooler)
• Follow instructions included with Keithley equipment for rack mounting.
NOTE 1U is a standard vertical spacing and is equal to 1.75 inches. Typical
distance between the mounting holes on rack rails is 0.125” (1/8”).
Step 1. Prepare instrument
To prepare the instrument for mounting, remove the handle, the mounting ears, and both rear feet. The following
information outlines this process.
1. Remove the handle —The handle serves as an adjustable tilt-bail. Adjust its position by gently pulling it
away from the sides of the instrument case and swinging it up or down. To remove the handle, swing the
handle below the bottom surface of the case and back until the orientation arrows on the handles line up
with the orientation arrows on the mounting ears (refer to Figure 1). With the arrows lined up, pull the ends
of the handle away from the case.
2. Remove mounting ears.
• Remove the screw that secures each mounting ear.
• Pull down and out to remove each ear.