Design EN 837-1 Nominal size in mm 50 Accuracy class 2.5 Indication range 0 ... 400 bar Pressure limitation Steady: 3/4 x full scale value Fluctuating: 2/3 x full scale value Short time: Full scale value Permissible temperature At the vehicle: -40 ... +80 °C (permissible temperature range) In the engine compartment: -40 ... +120 °C (for a maximum of 8 hours, at a maximum working pressure of 240 bar)