Yokogawa DM8C/VD6 Liquid Density Analyzer - Manual (Page 31)

< 3. INSTALLATION, PIPING AND WIRING >
3-5
IM 12T03A01-02E
(4) Removing a Packing Sheet for Transportation from the Density Detector
The vibrator is fi xed to the amplifi er case to avoid being damaged during transportation.
Remove the rubber sheet used for the fi xing. The rubber sheet is inserted between the case and
the coupler of the vibrator assembly. Remove the sheet according the steps below. For component
names, refer to the section 4.1.1.
(a) Remove the lock with a hexagonal bar wrench. Release the cover by turning it counterclockwise
and pull it down not to touch the internal assembly.
(b) Remove the cover (with desiccant) from the vibrator.
CAUTION
The vibrator tube has extremely thin wall, hence must be carefully handled.
Since assembling the vibrator tube requires special skill, the exchange of the vibrator should be made
by Yokogawa.
(c) Release the lock-screw for the vibrator turning the screw counterclockwise completely with a fl at
chip screw driver. Turn it enough, if not, the vibrator may touch the screw during measurement
causing an error. In addition, pay attention not to bend or damage the vibrator because it is made
of a thin pipe.
(d) Pull out the rubber sheet avoiding applying force to the vibrator (refer to Figure 3.7).
Lock-screw
Pull rubber sheet
in this direction
Pull out this rubber sheet
after loosening the set screw.
Use flat blade screw-driver
to turn this screw fully counterclockwise.
Rubber sheet
Figure 3.7 How to Remove the Rubber Sheet
(e) Remount the cover removed in the item (b). Also remount the cover in the item (a) to the case
and lock it.
Now the removing the rubber sheet fi nishes. Keep the rubber sheet which is necessary for
transportation of the density converter.