38
8. ACCESSORIES
As a standard, the P18(D) transducer is equipped with a shield
of the sensor, destined only for indoors applications. It is recommended
to use additional shields of the sensor (interchangeable) for outdoors or
indoors applications exposed to the possibility of water vapor condensa-
tion, depending of the transducer working conditions.
Table 18
Item
Order code
Dra-
wing
Name
Design Features
Typical appli-
cations
1 0874-490-016
Membrane filter
PCV ho-
using, PTFE
membrane
with a lami-
nated film,
pore size:
1 µm
Average effe-
ct of filtration,
maximal tem-
perature: up to
80oC, respon-
se time t10/90:
15 s
Building auto-
mation, for use
in the rooms
with small pol-
lution
2 0874-490-015
PTFE filter
Sintered
PTFE, pore
size 50 µm
High chemical
resistance, ma-
ximal temperatu-
re: up to 180
o
C,
response time
t10/90:14 s
Drying process
in chemical ap-
plications
3 0874-490-014
Sintered bronze filter
Sintered
bronze,
pore size
60 µm
High mechani-
cal resistance,
used in high
pollution and
low humidity,
response time
t10/90: 10 s
Agriculture
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