In the EDN.550 differential pressure transistor, all joints are joined by laser welding, and all parts in contact with the fluid are made of stainless steel. The pressure sensor is a Piezoresistive silico sensor, and the minimum differential pressure sensing pressure range is at least 400mbar and the static pressure, which is the pipe line pressure, is maximum. 200 bar.

 

In other words, EDN.550 detects with two piezoresistive sensors, silicone oil is filled in between the die, and two diaphragm. The measured differential unit applies pressure to the two diaphragm. Pressure is transferred to the die, the silicone oil and sensor die are connected to the amplifier, make a circuit through electrical wiring, and use chips using semiconductor circuits. The piezoresistive effect, which deforms the differential, then forms a good linear relationship with the signal output differential of the Whitstone bridge on the die, and through this process, the differential pressure is accurately measured and the analog signal is sent.

 

Since the part in contact with all fluids is stainless steel metal, chemical corrosion does not occur except for special fluids. The pressure connection method can be supplied by adding a male adapter to the Female pressure connection part according to the needs of the special business environment.

 Specification:

Differential pressure range	0…400 mbar to 0…35 bar
Static pressure	Max. 200 bar
Accuracy	±0.5 % of F.S
Electrical connection	Plug: DIN43650 A, M12 plug, Cable type
Signal Output	2-wire: 4…20mA 3-wire:0…10V, 0…5 V, 1…5V
Pressure connection	Female G1/4” x Female G1/4”
Process temperature	Operating: -20…80℃ Compensated : -20…70℃