YOKOGAWA TB820D, User Manual, Page: 72 / 87

<8. MAINTENANCE>
8-11
IM 12B01B30-02EN 2nd Edition : June 09 , 2021-00
(2) Removal of piping connected to the Flow cell
Remove the sample inlet pipe, sample outlet pipe, and sample drainage pipe.
Sample water outlet
Sample water inlet Drain
Figure 8.11 Piping removal
(3) Removal of water inside the Flow cell
If water remains inside the liquid tank, water droplets may drip inside the TB820D body
when you remove the Flow cell. So you need to remove the water inside the Flow cell
sufficiently.
1. Remove the top cover on the top of the Flow cell. Loosen the four screws and remove the
clear cover. Loosen the four (4) screws and remove the upper part of the Flow cell. (See
Figure 8.12)
2. Wipe the inside of the Flow cell with a soft cloth.
3. In order to prevent the water remaining inside the liquid tank from dripping inside the
TB820D main body, attach the red caps to the sample inlet pipe and the sample drainage
pipe. (Figure 8.13).
Top cover
(rubber cover)
clear cover
(transparent)
Screws
fixing the upper part of
Flow cell (4 points)
Screws fixing
clear cover
(4 points)
Figure 8.12 Removal of Top over, Clear cover, upper part of the Flow cell
Figure 8.13 Attachment of pipe cap