Rackmount/Benchtop Versionsโ492/492P Service Vol. 1 (SN B030000 & up)
Fig. 6-2. Instrument installed in a cabinet-type rack.
between the stationary and chassis sections and allows the
instrument to be extended out of the track. When the instru๎ธ
ment is shipped, the stationary and intermediate sections of
the tracks are packaged as matched sets and should not be
separated. To identify the left or right assembly note the
position of the automatic latch (see Fig. 6-3). When mounted
in the rack, the automatic latch should be at the top of both
assemblies. The chassis sections are installed on the instru๎
ment at the factory.
Mounting Procedure
The front flanges of the stationary sections may be
mounted in front of (outside) or behind (inside) the front rails
of the rack, depending on the type of rack. If the front rails
of the rack are tapped for 10-32 screws, the front flanges
are mounted outside of the rails. If the front rails of the rack
are not tapped for 10-32 screws, the front flanges are
mounted inside the front rail and a bar nut is used. Figure
6-4 shows these methods of mounting the stationary
sections.
Use the following procedure to install the rackmount ver๎
sion in a rack:
1) select the proper front-rail mounting holes for the station๎
ary sections, using the measurements shown in Fig. 6-5;
2) if the mounting flanges of the stationary sections are to
be mounted in front of the rails (rails tapped for 10-32
screws), mount each stationary section as shown in Fig.
6-4 A;
3) if the mounting flanges of the stationary sections are to
be mounted behind the front rails (rails not tapped for 10-32
screws), mount each stationary section as shown in Fig.
6-4B;
4) refer to Fig. 6-6 to insert the instrument into the rack. Do
not connect the power cord or install the securing screws
until all adjustments have been made;
6-4
REV AUG 1981
To Next Page
