WIKA 4 Mode D'emploi page 15

3. Specifications
3. Specifications
Materials (wetted)
Diaphragm element
Process connection
with lower measuring
flange
Sealing
In deviation from the version specified above, the instrument can also be used for
extremely corrosive media by means of a coating / lining. The materials suitable
for this can either be selected for the diaphragm element only, or together with
the process connection with lower measuring connection in a freely combinab-
le manner. The selection of the material combination determines whether it is
self-sealing or implemented with a sealing.
Pressure limitation
Models 432.50, 433.50, 432.30, 433.30, 452.50, 453.50, 452.30, 453.30:
Steady:
Fluctuating:
Short time:
Models 432.56, 433.56, 432.36, 433.36, 452.56, 453.56, 452.36, 453.36:
Steady:
Fluctuating:
Short time:
Temperature effect
When the temperature of the measuring system deviates from the reference
temperature (+20 °C): max. ±0.8 %/10 K of full scale value
Case ingress protection
IP54
„
IP65
2)
„
IP66
3)
„
For further specifications see WIKA data sheet PM 04.03, PM 04.07 and the order
documentation.
1) For general use, no ATEX requirement
2) Ingress protection IP65 for instruments with case filling
3) Hermetically sealed case; see data sheet IN 00.18
WIKA operating instructions pressure gauge model 4 per ATEX
Stainless steel 316L, for span ≤ 0.25 bar
■
NiCr alloy (Inconel), for span > 0.25 bar
■
Stainless steel 316L
FPM/FKM
Full scale value
0.9 x full scale value
5 x full scale value, however max. 40 bar
„
10 x full scale value, however max. 40 bar
„
Full scale value
0.9 x full scale value
40 bar
„
100 bar
„
400 bar
„
(per IEC/EN 60529)
1)
EN
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