Specifications; Design And Function - WIKA 5 Manual De Instrucciones

3. Specifications / 4. Design and function

3. Specifications

Pressure limitation
Steady:
GB
Fluctuating: 0.9 x full scale value
Overpressure safety
Minimum 1 bar absolute pressure (atmospheric pressure),
in addition 10 x full scale value, max. 25 bar absolute pressure
Wetted parts
Process connection and measuring chamber: Stainless steel
Pressure element
≤ 0.25 bar: Stainless steel 1.4571
> 0.25 bar: NiCr-alloy (Inconel)
Case, bayonet ring
Stainless steel
(models 532.3x, 533.32, 533.33, 533.34 with blow-out back)
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
IP ingress protection
IP 54 per EN 60529 / IEC 529
(with liquid filling IP 65)
For further specifications see WIKA data sheet PM 05.02 and the order
documentation.

4. Design and function

Description
Nominal size 100 and 160 mm
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The instruments measure the pressure by means of resilient diaphragm
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measuring elements. The reference point is absolute pressure "zero".
The measuring characteristics are in accordance with the EN 837-3 standard.
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8
Full scale value
WIKA operating instructions pressure gauge model 5 per ATEX