Diaphragm pressure gauges with alarm contact

Service intended

Suitable for all gaseous and liquid media. With optional flange connection also for viscous and contaminated media. 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 837-3
Ø 100, 160 and 250 mm, stainless steel
Weather protection
IP 54 per EN 60529 / IEC 529
Pressure connection
G1/2B, brass, Optional: open flange
Pressure element
Upper and lower flange, aluminium
Diaphragm, stainless steel 316Ti
Diaphragm, sealing ring, NBR
Base and cover plate, brass
Drive shaft, nickel silver
Aluminium, black
Aluminium, white
Scale and lettering, black
Instrument glass
Accuracy class
Temperature error, Tref 20°C
Rising temperature : +0,5 % FS / 10 K
Falling temperature : -0,5 % FS / 10 K
Ambient temperature Tmin / Tmax
- 25 ... + 60°C
Media temperature Tmax
Working pressure
Steady : 1,0 x full scale value
Fluctuating : 0,9 x full scale value
Short time overpressure : 5,0 x full scale value, maximum 40 bar
Optional extras
see: Technical Details