KROHNE DW 181-182-183-184 EN - Manual (Page 16)

16 Installation and operating instructions DW 181 - 184
5 Service
5.1 Maintenance
In normal operation no maintenance is required. However, the flow switch must be cleaned if
particles in suspension in the liquid build up on the measuring mechanism.
Caution
Check that the cleaning product used will not chemically react with (i.e.
corrode) the component materials.
5.2 Exploded view of instruments
DW 183 Std / EEx ia
DW 184 Std / EEx ia
52a Pressure resistant housing
52b PTFE ring
52c Washer
52d Tube
52e O-ring
53
Magnet lever with measuring disc
54 Measuring spring
55 Nut
56 Spring
washer
57 Tubular body with collar and flanges
58 PTFE gasket
62a Pressure resistant housing
62b PTFE ring
62c Washer
62d Tube
62e O-ring
63a Measuring
disc
63b Magnet lever
64 Measuring spring
65 Nut
66 Spring
washer
67 Flange with stilling well
68 PTFE gasket
The parts listed above are not supplied separately. Please refer to section 5.3: Spare parts for
a list of available spare parts.