47
Maintenance
Type 8746 Profibus, 8746 Analogue
WARNING
Risk of injury that is due to improper maintenance work.
▶
Only trained personnel can do the maintenance work. Per
-
sonnel must use suitable tools.
▶
Secure the installation against unintentional actuation.
▶
Ensure a controlled restart after maintenance.
WARNING
if you open the housing, risk of injury from malfunction and
risk of product failure.
Sensitive product parts are used to measure the flow rate and to
regulate the flow rate.
▶
Do not open the product housing.
▶
Only carry out the cleaning work and maintenance work on
the product that are described in the Operating Instructions.
▶
Only the manufacturer can carry out further work and
calibration.
If a heavily contaminated operating fluid is used, then do the
following maintenance operations:
→
At regular intervals inspect the stainless steel mesh-filter for
contamination. Refer to chpt.
→
If the stainless steel mesh-filter is contaminated, then clean
the mesh filter or replace the mesh filter with a new one, as
described in chpt.
. If you need spare parts, refer to
chpt. 13 Accessories, Spare Parts
.
11.1.1
inspect and clean the stainless steel
mesh-filter
The inspection and possibly cleaning of the stainless steel mesh-
filter must be done at regular intervals. The inspection frequency
and cleaning frequency depend on the measured fluid
.
item
description
1
Screws
2
Flange plate
3
O-ring
4
Circlip
5
Ring
6
Stainless steel
mesh-filter
7
Compression spring
1
2
4
6
7
3
Reverse side of the flange plate,
with inserted O-ring
5
3
Fig. 26: Exploded view – Parts in contact with the operating fluid
To inspect and clean the mesh filter, do the following steps:
→
Position the product upright with the fluid inlet at the top.
English
Summary of Contents for 8746
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