These units usually sit in a drip pan or similar location where people want to know if there is a leak. If they end up in the thinnest pool of liquid they will alarm. They use a leak detector looking at an LED and if that light path gets altered at all then it knows there is a liquid there. With that, it will detect any liquid as long as it is not exposed to excessive high or low temperatures. Please note that these units are not rated to operate in a hazardous, potentially explosive environment.
Detection method
Infrared Photo-refraction
Output
Transistor NO or NC
Power
12 – 24VDC
Response time
< 1 sec (DI water)
Current Consumption
25mA Max
Indicators
Normal operation – Green LED on, Red LED off
Detection – Red LED on, Green LED off
Operating temperature
- 10 to 60°C
Material of construction
PP (Polypropylene)
Cable
shielded 2 conductor, PVC (polyvinyl chloride)
2 meter length standard
Wiring
+: red
-: shield
Signal: white
As a liquid leak detector supplier, Daitron carries a selection of liquid leak sensors, including our LUP series and TFP series leak detectors, that offer the functionality and reliability needed in a liquid monitoring component.