Honeywell Fema DCM-203-574 Series Assembly And Operating Instructions Manual page 75

8.1 Pressure Switches in Ex-d (e),
Ex-t version (Ex-DCM, Ex-
DDCM, Ex-DNM, Ex-DNS, Ex-
VCM, Ex-VNM, Ex-VNS)
Ex-proof pressure switches from "flame-
proof enclosure" can be supplied only in
the form that has been type test approved
according to ATEX. Other variants and
additional functions are thus not possible.
8.2 Technical Data of the Ex
Pressure Switches
Type of Ex-protection
0035 II 2G Ex d e IIC T6 Gb
0035 II 1/2D Ex ta/tb IIIC T80°C Da/Db
Approvals
ATEX: IBExU12ATEX1040
IECEx: IECEx IBE 14.0077
MU2B-0238GE51 R0616D
8. Testing Principles and Safety Information for Ex-de and Ex-t
Ex-Zone
For gases: zones 1 and 2 (at switching
device)
For dust: zones 21 and 22 (at switching
device), zone 20 (at sensor)
Type of protection
IP 65 (vertical installation – sensor facing
downwards, switching device facing
upwards)
Ambient temperature
-20 to +60 °C
Max. medium temperature for pressure
switches
60 °C. Higher medium temperatures are
possible if the appropriate measures (e.g.,
installed siphon) are taken so that the
permissible ranges are not exceeded for
the switch.
Cable type
M16 x 1.5, for fixed installation, only
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