Design EN 837-1 Nominal Size in mm 63, 100, 160 Accuracy Class NS 63: 1.6 NS 100, 160: 1.0 Scale Ranges NS 63: 0 … 1 to 0 … 1,000 bar NS 100: 0 … 0.6 to 0 … 1,000 bar NS 160: 0 … 0.6 to 0 … 1,600 bar or all other equivalent vacuum or combined pressure and vacuum ranges Pressure Limitation NS 63: Steady: 3/4 x full scale value Fluctuating: 2/3 x full scale value Short time: Full scale value NS 100, 160: Steady: Full scale value Fluctuating: 0.9 x full scale value Short time: 1.3 x full scale value Permissible Temperature Ambient: -40 … +60 °C without liquid filling -20 … +60 °C gauges with glycerine filling (Model 233.30) Medium: +200 °C maximum without liquid filling +100 °C maximum with liquid filling (Model 233.30) Temperature Effect When the temperature of the measuring system deviates from the reference temperature (+20 °C): max. ±0.4 %/10 K of full scale value Ingress Protection IP 65 per EN 60529 / lEC 529 (gauges with back mount: IP 55)