YOKOGAWA IR800G, User Manual

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IM 11G06A01-02EN
6-3
6. MAINTENANCE
1st Edition : Oct. 27, 2023-00
6.3 How to replace filter
The filter (line filter) is located in the sample gas inlet fitting. Viewed from the inlet side, it has
three parts in alignment: C-type snap ring (Retainer), plate (sintered filter), and filter (felt). Follow
the procedure below to replace the filter with a new one. You need a special tool (snap ring pliers)
to remove the C-shaped snap ring when replacing it.
(1) Using snap ring pliers (special tool), insert the tool into the two holes of the inner ring of the
C-shaped snap ring to compress the snap ring and pull it out toward you.
(2) Remove the plate and filter with tweezers, etc.
(3) Install 1. a new filter, 2. a plate, and 3. a snap ring, in that order.
• The filter has two sides. Insert the filter into the fitting with the smooth, non-fluffy side facing
to the front.
• Insert the plate. This also has a front and back.Insert the plate with the fine mesh side facing
back.
• Compress and insert the snap ring with snap ring pliers. While pressing down on the filter
and plate, fasten with the snap ring. At this point, be sure to press firmly on the snap ring to
prevent the plate from moving even if you try to move it with tweezers or the like.
CAUTION
Press the snap ring firmly into place. If the pressing is loose, the filter and plate will not achieve
the filtering function at all.
Plate
（
K9211FB
）
The finer side of the mesh faces to the front.
back
front
C-shaped snap ring
（ Y9011EV ）
Filter
（
K8020PW
）
The smooth, non-fluffy side faces to the front.
Figure 6.2 IR800G Filter replacement