Design EN 837-1 Nominal size in mm 50 Accuracy class 2.5 Scale ranges 0 ... 1.6 to 0 ... 400 bar or all other equivalent vacuum or combined pressure and vacuum ranges Pressure limitation Steady: 3/4 x full scale value Fluctuating: 2/3 x full scale value Short time: Full scale value Permissible temperature Ambient: -20 … +60 °C Medium: +60 °C maximum