Type code
Basic version
DWR XXX
DWR
XXX
YYY
Ex-
The type code also roughly applies for series DGM...
Version of the switch housing
DWR XXX
DWR XXX-2...
DWR XXX-5...
Ex-DWR...
Important note:
The pressure switches are precision devices which are set and adjusted in the factory. Therefore
do not open the device, do not change the adjustment of the varnished adjustment screws.
The switching points would change – readjustment would be necessary.
Version with additional function
DWR XXX-YYY
Identification for series
Identification for pressure range
Identification for additional function
Identification for Ex version
Plug connection housing (200) (plug connection to DIN 43650)
Terminal connection housing (500)
Ex switching device (700)
Ex version
Ex-DWR XXX
23