Differential pressure gauges DM20
Service intended:
Suitable for gaseous and liquid, non-crystallizing media that will not obstruct the pressure system. Scale range must be selected in consideration of the highest static pressure applied.
Technical Data
Construction
similarly EN 837-1
Case
Ø 100 and 160 mm, stainless steel
Protection
IP 54 per EN 60529 / IEC 529
Pressure connection
2 x G1/2B, parallel behind, st.st. 316L identified + and
Pressure element
Diaphragm element, stainless steel 316L
Diaphragm, FPM/PA
Pressure chambers, 316Ti, with exhaust
Movement
Stainless steel
Pointer
Aluminium, black
Dial
Aluminium, white
Scale and lettering, black
Window
Laminated safety glass
Zero point adjustment
Adjusting screw in dial
Accuracy class
1,6 / 2,5
Temperature error Tref 20°C
Rising temperature : +0,3% FS / 10 K
Falling temperature : -0,3% FS / 10 K
Ambient temperature Tmin / Tmax
- 25 ... + 60°C
Medium temperature Tmax
+100°C
Working pressure
Steady : 1,0 x full scale value
Fluctuating : 0,9 x full scale value
Overpressure safety:
+ and - pressure chambers: maximum 25 bar
Static pressure rating
maximum 25 bar
