Navigator 600 Silica
Single-stream
8 Maintenance
IM/NAV6S/SS–EN Rev. E
51
8.2 Periodic Maintenance
8.2.1 Sample Filter Replacement
The sample filter prevents large particles from entering the wet
section. Filter longevity is related to the level of particulates in the
samples.
To replace the sample filter:
1. Press the
key. The main menu is displayed:
2. Using the
and
keys, highlight 'Start / Stop Pumps'
and press the
key.
3. Referring to Fig. 8.2:
a. Remove cap
A
from filter holder
B
.
b. Using a suitable tool, remove filter
D
from filter
holder
B
.
c. Wet the new filter with demineralized water and fit it
into the holder.
d. Wet O-ring
E
with demineralized water and refit
cap
A
to filter holder
B
.
4. Start the pumps and check that the sample solution is
flowing. If there is air leaking into the filter housing, tighten
the filter cap onto the filter holder.
8.2.2 Reagent Tube Filter Replacement
Each reagent tube has an integral filter fitted into the sinker.
To replace the reagent tube filter:
1. Press the
key. The main menu is displayed:
2. Using the
and
keys, highlight 'Start / Stop Pumps'
and press the
key.
3. Referring to Fig. 8.3:
a. Remove cap
A
from reagent or solution bottle
B
.
b. Using a suitable tool, remove filter
C
from sinker
D
.
c. Fit a new filter.
d. Reposition the reagent tube in reagent bottle
B
and
refit cap
A
.
4. Start the pumps.
Fig. 8.2 Sample Filter Replacement
Note.
Do not remove the sample tubing from
connector
C
.
A
B
C
D
E
Warning.
Ensure that gloves and goggles are worn during any
maintenance and that any spillages are cleaned up
using high-purity water.
Observe all health and safety procedures for handling
chemicals.
Fig. 8.3 Reagent Tube Filter Replacement
