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11 Supplement
WIKA Operating Instructions - Differential pressure transmitter DPT-10
11 Supplement
11.1 Technical data
Note for approved instruments
The technical data in the respective safety instructions are valid for approved instruments (e.g. with
Ex approval). These data can differ from the data listed herein, for example regarding the process
conditions or the voltage supply.
Materials and weights
Material 316L corresponds to stainless steel 1.4404 or 1.4435
Materials, wetted parts
Ʋ Process fitting with lateral flanges
Steel C 22.8 (1.0460), 316L, Alloy C276 (2.4819)
Ʋ Separating diaphragm
316L, Alloy C276 (2.4819), Tantalum, Alloy C276
(2.4819) gold-rhodium coated
Ʋ Seal
FKM (Viton), FKM cleaned from oil and grease, FKM for
oxygen application, PTFE, PTFE for oxygen application,
NBR, copper, copper for oxygen application
Ʋ Screw plugs
316L
Internal transmission liquid
Synthetic oil, Halocarbon oil
7)
Materials, non-wetted parts
Ʋ Electronics housing
Plastic PBT (polyester), Alu die-casting powder-coated
Ʋ External electronics housing
plastic PBT (Polyester)
Ʋ Socket, wall mounting plate external
electronics housing
plastic PBT (Polyester)
Ʋ Seal between housing socket and wall
mounting plate
TPE (fixed connected)
Ʋ Seal ring, housing cover
Silicone
Ʋ Inspection window in housing lid for
display and adjustment module
Polycarbonate (UL-746-C listed)
Ʋ Screws and nuts for lateral flange
PN 160: hexagon screw ISO 4014-M12 x 90-A4, PN 420:
hexagon nut ISO 4032-M12-A4-bs
Ʋ Ground terminal
316Ti/316L
Ʋ Conductive connection
Between ground terminal and process fitting
Ʋ Connection cable with version IP 68
(1 bar)
PE
Ʋ Connection between IP 68 transmitter
and external electronics housing
PUR
Ʋ Type label support with IP 68 version
on cable
PE hard
Max. torque screws mounting strap
30 Nm
Max. torque screws socket external
housing
5 Nm (3.688 lbf ft)
7)
Halocarbon oil generally with oxygen applications, not with vacuum and absolute pressure measuring range
< 1 bar
abs
.
