KROHNE DW 181-182-183-184 EN - Manual (Page 12)

12 Installation and operating instructions DW 181 - 184
3.2.2 Type
A indicator
The switch is adjusted by unlocking the adjustment screw (item 7) and repositioning the switch
support arm (item 8).
“A” graduated dial indicator assembly
1
Pointer
2 Dial
3 Following magnet
4 Control magnet
5 Mechanism
6 Switch
7 Adjustment screw
8 Switch support
3.3 Adjusting the limit switches - EEx d flow switch version
3.3.1 MS 12/BRX switch
The switch is adjusted by unscrewing the limit switch adjustment screw M8x10 (2) on top of the
pressure housing with a 4mm hexagon key. The switch (in its metal sheath) may then be
repositioned as required before retightening the screw. The original position is etched onto the
sheath.
MS 12/BRX switch assembly
1
MS 12/BRX switch
2 Limit switch adjustment
screw
3 Switch sheath
4 Switch magnet
5 Pressure housing