WIKA 7 Series - Specifications

WIKA operating instructions pressure gauge model 7 per ATEX10
2080284.08 02/2021 EN/DE/FR/ES
EN
3. Specications
Pressure limitation
Steady:
Full scale value
Fluctuating:
0.9 x full scale value
Max. working pressure / overload safety, models 73X.31, 73X.51
Scale range max. working pres-
sure (static pressure)
Overload safety, either
side
Standard Option Standard Option
0 ... 16 to 0 ... 40 mbar 2.5 6 2.5 -
0 ... 60 to 0 ... 250 mbar 6 10 2.5 6
0 ... 400 mbar 25 40 4 40
0 ... 0.6 bar 25 40 6 40
0 ... 1 bar 25 40 10 40
0 ... 1.6 bar 25 40 16 40
0 ... 2.5 to 0 ... 25 bar 25 40 25 40
Overload safety, models 73X.14, 76X.14
40, 100, 250 or 400 bar
Materials of wetted parts
Process connection, media chamber, measuring ange: Stainless steel, Monel
(only model 76X.14)
Models Pressure element
73X.31, 73X.51 Scale range ≤ 0.25 bar: Stainless steel
Scale range > 0.25 bar: NiCr-alloy (Inconel)
73X.14 Stainless steel/NiCr-alloy (Inconel) or Hastelloy (option)
76X.14 Monel or Monel/Hastelloy (option)
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
3. Specications