KROHNE DW 181-182-183-184 EN - Manual (Page 6)

6 Installation and operating instructions DW 181 - 184
Principle components
DW 18 Standard or EEx ia version
1 Indicator type G (linear scale) or A
(dial)
2 Equipment label*
3 Flange (illustrated) or screwed
connection
4 Indicator cover locking pin
5 Flow direction arrow (DW183/4)
6 Wiring compartment cover
7 Gland (plugged)
8 Cable fitting (PG 13.5)
9 Measuring tube
DW 18 EEx d version
1 Equipment labels*
2 MS 12/BRX switch housing
3 Cable fitting (to be supplied by the
customer)
4 PE terminal
5 Flow direction arrow (on measuring
tube for DW181/2)
6 Socket set screw for adjusting
switch position
7 Pressure housing
8 Equipment dog-tag (tag no., etc.)
9 Screw-on connection
DW 18 HT (H3) version
1 Pressure housing
2 Switch sheathed in a PTFE
cartridge
3 Measuring tube
4 Electric cable in fibre glass
sheathing
5 MS 14 switch information label
6 Wiring box
7 Cable fitting (PG 9)
* Equipment labels shown on next page