HACH LANGE astroTOC UV Manuel D'utilisation De Base page 39

Fire hazard. Use the same type and current rating to replace fuses.
Figure 21 shows the locations and specifications of the fuses.
Figure 21 Fuse locations and descriptions
1 F2-External valve fuse
2 F3-Con25 and fan fuse: 1 A anti-surge 250 V
(IEC127 Sheet III Type 2)
3 F1-UV lamp fuse
4 F4-RS422/485 fuse: 4 A anti-surge 250 V
(IEC127 Sheet III Type 2)
5 Printed circuit board
D A N G E R
6 F5 fuse holder
7 Power supply terminal fuse: 2 A anti-surge 250 V
(IEC127 Sheet III Type 2)
8 Power supply cover
9 Cover screws (4x)
English 39