Bourdon tube pressure gauge with alarm contact, stainless steel Typ: R20

Accuracy class 1,0 and 1,6
NG 100, 160, 250, 96×96, 144×144
without liquid filling

Service intended:
These alarm contacts are intended to make or break am 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).

Fields of application:
● plant-/ mechanical engineering
● chemical industry
● heating and air conditioning technology

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EN 837-1 - Code S1
Ø 60, 100, 160 and 250 mm stainless steel with pressure relief
Protection class
IP 54 per EN 60529 / IEC 529
Pressure connection
Ø 60 mm : G1/4B, 316L Ø 100, 160 and 250 mm : G1/2B, 316L
Pressure element
stainless steel 316L
stainless steel
Aluminium, black
Aluminium white, scale and lettering black
Laminated safety glass
Accuracy class
Ø 60 mm : 1,6 Ø 100, 160 and 250 mm : 1,0
Temperature error, Tref 20°C
rising temperature: +0,3 % of FS/ 10 K Falling temperature: -0,3 % of FS/ 10 K
Ambient temperature Tmin / Tmax
- 40°C ... + 60°C
Medium temperature Tmax
Working pressure
Steady : 1,0 x full scale value Fluctuating : 0,90 x full scale value Short time : 1,3 x full scale value
Optional extras
see Technical Details
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