Optical Liquid Level Sensor

Specifications 
inductive proximity switch sensor 
1.high performance ASIC based sensor 
2.high noise immunity 
3.mini type 

Product Features 
High Performance ASIC based Sensor 
Modulated Optical Sensor with 1/10 duty cycle 
5us or 20us pulse time   
20ms Power On Delay 
Build in Short circuit , reverse polarity, over voltage protection 
Low Power 6mA with output low 
High Noise immunity with modulated and CDS technology 
Temperature range:  - 40 ~ 125degree centigrade 
1,Standard sensing object :  Water, various solution(acid-base resistance)                 
2,Power  voltage : 10 to 30 VDCplus or minus10%, ripple (p-p): 10% max.         
3,Current  consumption : 6mA  max(not include the load)                 
4,Load current : 100mA Max                 
5,sensing precision : Precede plus or minus1mm                 
6,Protection circuit : Reverse polarity protection, Short-circuit  protection         
7,Control output : NPN / PNP          
8,Life expectancy : 100,000 times min. (switching frequency: 18,000 times/h)         
9,Ambient illumination : Sunlight 80,000lx. incandescent lamp light  5,000lx 
10,Insulation resistance : 20 M ohm min. at 500 VDC                         
11,Degree of protection : IP67                         
12,Connection method : Pre-wired (standard length: 30cm) 1core*3         
13,Weight (packed state) : Approx.20g                         
14 ,Material : Polysulfone                         
15, Accessories : Seal ring,nut         

Application   
1.Accurate liquid level detection, high repeatability, quick response. 
Output of liquid level is only related with whether photoelectric detector contacts liquid, not other features(temperature, pressure, density, electrical parameter), so it is with accurate detection, high repeatability, quick response, high accurate control. 
2.Can be made multipoint level sensor. 
Because of the small volume, one detected object can be installed several photoelectric detectors, making multipoint level sensor, variable controller. 
3.High reliability, long lifetime, maintenance-free.By reason of having resin encapsulation process on all components, there is no anyother mechanical moving parts inside the  sensor.