KROHNE DW 181-182-183-184 EN - Manual (Page 21)

Installation and operating instructions DW 181 - 184 21
Kit measuring system
Reed switch for EXD or HT versions
Tags Description Code Tag Description Code
MS 14/HT NC XF 71051500 DW 183
/ RR XF71080100 48
MS 14/HT NC XF 7101600
- MS 12/BRX (EXD) NC XF 71051700
52a…e,
53…56,57
DW 183
/ RR / HT XF71080400
- MS 12/BRX (EXD) NO XF 71051800
- DW 183
/ RR / EXD
XF71080300
5.4 Inspection procedure
5.4.1 Inspection procedure: measuring assembly
Check the condition of the measuring system, cone-disc or nozzle-disc. Check the condition of the
spring. In the event of leaks between the body and the cap, tighten the four bolts securing the cap.
Change the O-ring if necessary. Carefully follow the maintenance procedures in section 5.5.
5.4.2 Inspection procedure: housing (DW181 & DW182 models)
Check switch operation using an ohmmeter. Check the operation of the indicating mechanism. By
removing the lock ring (Tag no. 7, section 5.2) holding the housing onto the assembly, it is possible
to remove the housing from the measuring body without removing the flow switch from the pipe, or
stopping the flow. Carefully follow the maintenance procedures in section 5.5.