WIKA 532.54 - Manual (Page 8)

GB
8
11554810.02 11/2013 GB/D/F/E
WIKA operating instructions pressure gauge model 5 per ATEX
3. Specifications / 4. Design and function
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
■ The instruments measure the pressure by means of resilient diaphragm
measuring elements. The reference point is absolute pressure “zero”.
■ The measuring characteristics are in accordance with the EN 837-3 standard.
3. Specifications
Pressure limitation
Steady: Full scale value
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