2CH Electronic Pressure Switch : PSS

The PSS model, the sensing element, has excellent temperature properties by adopting a self temperature compensation foil strain gauge. A diaphragm and a pressure port thereof are composed as one body for the prevention of leakage. It can control the system without any controller due to the output of a 2-channel NPN open collector switch.

Features
Electrical pressure switch with no 
mechanical moving part
Fast response 1ms 
Measuring range 0 ∼ 400MPa
Two pressure setting points
Self temperature compensation foil strain 
gauge
Stainless steel media-wetted materials

Applications
Process control
Hydraulics & Pneumatic
Compress Control
Chillers
Refrigeration Equipment

 

  PSSI PSSL
Range 0~1, 2, 3, 5, 10, 20, 30, 35, 50, 100, 250, 400MPa (Gauge)
-0.1~0, 1, 2, 3, 5, 10, 20, 30, 35, 50, 100, 250, 400MPa (Gauge)
Performance
Accuracy
Hysteresis 
Thermal Effect(Zero)
Thermal Effect(Span)
Compensated Temp.
Operating Temp.
±1%FS 
±0.3%FS(Factory Setting)
±0.1%FS/℃
±0.1%FS/℃
-10~70℃
-20~80℃
Electrical
Exitation

Output
Analog Signal
Switch Signal
Switch Load Current
Electrical Connection
11~28 VDC
1~3VDC  
NPN Open Collector 
28V 80mA Max
Cable
Physical
Proof Pressure
Burst Pressure
Vibration 
Shock 
Pressure port
Wetted Materials 
Weight
150%FS Max
200%FS Min
49.1m/s²{5G}, 10~500Hz 
490m/s²{50G} 
R3/8", G3/8"
Stainless Steel 630
Approx. 180g (Included Cable 50cm)

 

 

 

 

Cr. : http://www.sensys.co.kr