Navigator 600 Phosphate
Multi-stream
8 Maintenance
IM/NAV6P/MS–EN Rev. F
51
8.3 DC Fuse Replacement
Referring to Fig. 8.4:
1. Turn door retaining screws
A
1/
4
turn counter-clockwise
and open the electronics section door.
2. Using a cross-head screwdriver, remove 4 screws
B
and
remove transparent cover plate
C
.
3. Carefully remove the fuse from fuse holder
D
on DC
power board
E
.
4. Fit a new fuse (12.5 A 125 V DC Type T, SCHURTER,
Model SPT 5 x 20 Series) into fuse holder
D
on DC
power board
E
.
5. Refit transparent cover plate
C
and secure with 4 screws
B
6. Close the electronics section door and turn door retaining
screws
A
1/
4
turn clockwise to secure.
8.4 Manual Test Settings
This function is used to aid troubleshooting – see Appendix C,
page 71.
The analyzer is taken offline when Manual Test Settings are
used. On exiting Manual Test Settings it is possible to exit via
Normal Mode and Test Mode. On exiting 'Normal' mode the
settings revert to the default settings.
Exiting via Test Mode maintains the settings entered while in
Manual Test Settings so that the readings can be monitored
after changes have been made.
8.5 Start / Stop Pumps
This function is available on the first menu and is used to stop
and start the peristaltic pumps manually for maintenance
purposes.
Caution.
Only use replacement fuse: 12.5 A 125 V DC
Type T, SCHURTER, Model SPT 5 x 20 Series
Fig. 8.4 Replacing the DC Fuse
Warning.
Isolate the analyzer and cables from electrical
supply before accessing the DC fuse.
