Honeywell MPD Series Operating Manual page 12

135 Duct Mount Kit
The duct mounting kit (S3KDMK), combined with the MPD Interface Adaptor
(1226A0382), can accommodate the MPD to detect flammable gases in a duct
application. The duct mount kit includes the adaptor, gasket and required fasteners.
The MPD Interface Adaptor includes only the adaptor and requires the S3KDMKduct
mount kit.
1226A0382 MPD Adapter Ring
S3KDMK EC/MPD Duct Adapter Kit
Figure 7. Duct Mount Kit
136 Filters
In a clean atmosphere, and where no accessories are to be fitted, a filter is not
needed. It is however mandatory that a filter should be fitted to provide protection
appropriate to the environment and to complete the seal when a Weatherproof
Cap or Collecting Cone is fitted.
12 MPD Operating Manual