Evoqua W3T350215, Инструкция по эксплуатации

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5. Maintenance DEPOLOX® 5 E flow cell
EN
5.8 Cleaning or replacing the fine
filter
The fine filter must be cleaned or replaced to
protect the membrane sensor’s delicate mem-
brane against soiling or damage and to pre-
vent clogging.
1 Switch off the power supply.
2 Drain the sample water inlet and outlet
line.
3 Remove the housing cover of the flow
cell.
4 Release both knurled nuts (A).
5 Remove the complete filter unit.
6 Remove the fine filter (C). To do this,
screw the M6 screw into the fine filter
and pull the fine filter out of the filter
unit.
7 Rinse the fine filter with water, replace if
necessary.
8 Push the fine filter into the filter unit.
Ensure that the O-ring (B) is fitted cor-
rectly.
9 Fit the complete filter unit. Ensure that it
is in the correct position (top/bottom).
10 Tighten the knurled nuts (A).
11 Refit and engage the housing cover of the
flow cell.
12 Reconnect the sample water inlet and
outlet lines.
13 Re-establish the power supply.
Abb. 2 Filter unit cross-section
A Knurled nut
B
O-ring
C Fine filter
5.9 Cleaning flow rate monitor
and check valve
1 Switch off the power supply.
2 Drain the sample water inlet and outlet
line.
3 Remove the housing cover of the flow
cell.
4 Dismantle the filter unit.
5 Carefully pull the complete non-return
ball valve housing (A) down and out.
6 Turn the non-return ball valve housing
upside down and catch the flow ball (B) or
if the ball is jammed, release it with a
slight knock.
7 Use a suitable blunt tool to push out the
ball seat (D) and glass ball (C) against the
direction of flow.
8 Clean the empty check valve housing,
flow ball, ball seat and glass ball with dis-
tilled water.
9 During reassembly, make sure that the
ball seat and ball are correctly positioned.
10 To help push the assembled check valve
housing back into the control valve,
slightly lubricate the gaskets with the sup-
plied Unisilikon grease.
11 Check that the non-return ball valve hou-
sing is correctly positioned through the
guide lugs on the housing.
12 Fit the filter unit again.
13 Refit and engage the housing cover of the
flow cell.
14 Reconnect the sample water inlet and
outlet lines.
15 Re-establish the power supply.
A
B
C
D
top
bottom