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Isolated pressure transducer 4bar absolute for steam pressure application

Time:2019-03-27

Application:
Disposable indicator for monitoring sterilization procedures, should be a low cost pressure sensor which will be able to function in 140°C steam up to 3,8 bar absolute. It has to be all over encapsulated and protected against media.

Disposable indicator in this case means that there it lasts 500 cycles of sterilization then it is disposed (no battery change or recalibration). So it is basically disposable after shelf life.  Longest sterilitation cycle last app 18 min, 134degC, 3,6 Bar abs. During this cycle steam is condesating on surfaces and after cycle it is dryed and exposed to normal atmosphere for longer time,  and so on...

Isolated pressure sensor transducer
 Isolated pressure transducer
Isolated pressure sensor transducer
Isolated pressure transducer


Parameters

Power Supply
1.5mADC
Zero Output
Not adjusted①
Span Output
100±20mV
Measuring Range (Absolute)
400 KPa; 4 bar
Overload
2.0 × F.S.
Temperature Compensation
Not Compensated
Operating Temperature
-20 to 100 °C
Storage Temperature
-40 to 125 °C
Input Impedance
2.3KΩ to 4KΩ
Accuracy (0~600KPa...6MPa)
0.5%F.S.@Room temp

Constructions

O-Ring
Viton(Ø16 × 1.7)
Diaphragm
Stainless steel 316L
Housing
Stainless steel
Filling Liquid
Silicone oil
Electrical Connection
5 Kovar pins
Diameter
Ø19mm
Height
5.6mm
Weight
9g

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