Keithley 4288-4 Quick Start Manual

Model 4288-4 Dual Fixed Rack Mounting Kit
Introduction
This packing list contains the parts list and installation information for the Model 4288-4 Dual Fixed Rack Mounting Kit. The Model 4288-4 includes all of the hardware necessary for side-by-side rack mounting of a 3½-inch high instrument (Models 182, 428, 486, 487, 776, 2000, 2001, 2002, 2010, 2304, 2400, 2410, 2420, 7001) and a 5-inch high instrument (Models 195A, 196, 220, 224, 230, 263, 595, 614, 617, 705, 740, 775, etc.). The rack mounting kit can be installed in a standard 19-inch rack.
Parts list
Table 1 lists the parts supplied with a Model 4288-4 Dual Fixed Rack Mounting Kit.
Keithley
Qty. Description
1
Chassis
2
Bracket, rear support
1
Front panel
1
Clamp (for 3½-inch instrument)
1
Clamp assembly (for 5-inch instrument)
1
Clamp (for 776 only)
1
Spacer(for all 3½-inch products other than 2000, 2010, 2400, and 776)
part no.
4288-4-301 BR-21 4288-4-303 4288-4-302 1019A-303 4288-4-305 4288-4-304
Rear support brackets to chassis:
4
10-32 Kepnut
4
10-32 x Phillips pan head screw
Rear support brackets and front panel to rails:
8
Fastener captive nut
8
10-32 x Phillips pan head screw
Clamps to chassis:
6 8-32 x Phillips pan head screw 8-32xPPH
Spacer to chassis:
2 Plastic fastener FA-240
10-32KEPNUT 10-32xPPH
FA-148 10-32xPPH
PA-385 Rev. C / 2-00
Rack preparation
1. Select a location in the rack. The assembly will take up 5¼ inches of vertical space.
2. Hold up the front panel at the selected location in the rack. The four slotted mounting holes in the front panel dictate the location of the captive nut fasteners on the four rack rails. Mark where the fasteners are to be installed.
3. Referring to Figure 1, install four fasteners so that the captive nuts are located behind the appropriate holes on the front rack rails.
Figure 1
Fastener installation
Instrument preparation
1. Remove the handle from the 3½-inch instrument. There are two styles of handles; the newer style has orientation arrows at each handle end that are molded onto the plastic.
A. With the old style handle, rotate it to the uppermost position. With the new style, rotate it under the instrument until the
arrows on the handle ends line up with arrows on the mounting ears.
B. Pull out on the handle ends until the handle is clear of the mounting ears, and then remove the handle.
2. Remove the screw that secures each mounting ear to the case, and remove both mounting ears.
NOTE
Save all removed parts for reinstallation if the instrument is ever removed from the rack in the future.
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