Specifications - WIKA 7 Betriebsanleitung

3. Specifications

3. Specifications
Pressure limitation
Steady:
EN
Fluctuating:
Max. working pressure / overload safety, models 73X.31, 73X.51
Scale range
0 ... 16 to 0 ... 40 mbar
0 ... 60 to 0 ... 250 mbar
0 ... 400 mbar
0 ... 0.6 bar
0 ... 1 bar
0 ... 1.6 bar
0 ... 2.5 to 0 ... 25 bar
Overload safety, models 73X.14, 76X.14
40, 100, 250 or 400 bar
Materials of wetted parts
Process connection, media chamber, measuring flange: Stainless steel, Monel
(only model 76X.14)
Models
73X.31, 73X.51
73X.14
76X.14
Sealing (only models 73X.14, 76X.14): FPM/FKM
Vent screws for media chamber:
Stainless steel (optional for scale ranges ≥ 0.4 bar)
Materials of non-wetted parts
Movement, case, bayonet ring: Stainless steel
Dial and pointer: Aluminium
Window: Laminated safety glass
10
Full scale value
0.9 x full scale value
max. working pres-
sure (static pressure)
Standard
2.5
6
25
25
25
25
25
Pressure element
Scale range ≤ 0.25 bar: Stainless steel
Scale range > 0.25 bar: NiCr-alloy (Inconel)
Stainless steel/NiCr-alloy (Inconel) or Hastelloy (option)
Monel or Monel/Hastelloy (option)
WIKA operating instructions pressure gauge model 7 per ATEX
Overload safety, either
side
Option Standard
6 2.5
10 2.5
40 4
40 6
40 10
40 16
40 25
Option
-
6
40
40
40
40
40