Design
EN 837-3
Nominal size in mm
100, 160
Accuracy class
Model 422.12: 1.6 Model 423.12: 2.5 (option 1.6)
Scale ranges
0 ... 16 mbar to 0 ... 250 mbar (flange Ø 160 mm)
0 ... 400 mbar to 0 ... 40 bar (flange Ø 100 mm)
or all other equivalent vacuum or combined pressure and vacuum ranges
Pressure limitation
Steady: full scale value
Fluctuating: 0.9 x full scale value
Overpressure safety
3 x full scale value, however max. 40 bar
Permissible temperature
Ambient: -20 ... +60 °C
Medium: +100 °C maximum
Storage: -40 ... +70 °C (scale ranges ≤ 60 mbar: -20 ... +70 °C)
Temperature effect
When the temperature of the measuring system deviates from the reference temperature (+20 °C):
max. ±0.8 %/10 K of full scale value
Ingress protection
IP 54 per EN 60529 / IEC 529
(with liquid filling (Model 423.12) IP 65)
