Yokogawa Single Channel Oxygen Analyzer System ZR22/ZR402 - Manual (Page 182)

IM 11M13A01-02E 11-11
11. Inspection and Maintenance
To replace the fuse, follow these steps:
(1) Turn off the power to the converter for safe replacement.
(2) Remove the fuse from its holder. With the appropriate flat-blade screwdriver that just
fits the holder cap slot (Figure 11.7), turn the fuse holder cap 90
Њ counterclockwise.
By doing so, you can remove the fuse together with the cap.
Cap
Flat-blade
screwdriver
Fuse
Socket
F11.7E.EPS
Figure 11.7 Removing the Fuse
(3) Check the rating of the fuse and that it satisfies the following:
Maximum rated voltage: 250 V
Maximum rated current: 3.15 amperes
Type: Time-lag fuse
Standards: UL-, CSA- or VDE-approved
Part number: A1113EF
Place a new, properly rated fuse in the holder together with the cap, and push and turn
the cap clockwise 90+‹with the screwdriver to complete installation of the fuse.
11.2.2 Cleaning
Use a soft dry cloth to clean any part of the converter during inspection and mainte-
nance.