Bourdon tube pressure gauges, brass with alarm contacts

Service intended

These alarm contacts are intended to make or break an electrical control circuit relative to the position of the instruments pointer.The functions of the different contacts may be chosen depending on application. Points of contact actuation are adjustable over the full extension of the scale graduation. For points with high, dynamic load, fast load alternation and pressure peaks or vibration we recommend a special oil filled type (only available with round case model).


Technical Details

Operating instructions Type I Inductiv contact
Operating instructions Type E Electronic contact

Operating instructions Type M Magnetic snap-action contact

Operating instructions Type S Sliding contact
Alarm contacts
Sliding contact
Magnetic snap-action contact
Electronic contact for SPS
Inductive contact
Pneumatic contact
Technical Data
EN 837-1
Ø 100, 160 and 250 mm, stainless steel
Panel mounting case DIN 43700 96x96, 144x144, 144x72 und 192x96 mm Plastic, black
Protection class
IP 54 per EN 60529 / IEC 529
Pressure connection
G1/2B, brass
Pressure element
>100 bar, st.st. - 316L, hard-soldered
Base and cover plate, brass Drive shaft, nickel silver
Aluminium or plastic, black
Aluminium white Scale and lettering black
Instrument glass
Accuracy class
Temperature error, Tref 20°C
Rising temperature :+0,3% of FS value / 10 K
Falling temperature :-0,3% of FS value / 10 K
Ambient temperature Tmin / Tmax
- 40°C ... + 60°C
Medium temperature Tmax
Soft soldered pressure element + 80°C, Brazed pressure element +120°C
Working pressure

Steady :1,0 x full scale

value Fluctuating :0,9 x full scale value
Short time :1,3 x full scale value

Optional extras
see: Technical Details
Chemical seals