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LUP Series compact Leak Detect Sensor

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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 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.

However these units are not rated to operate in a hazardous potential explosive environment.
 

Detection method

Infrared Photo-refraction

Output

Transistor NO or NC

NPN (50mA MAX) or PNP (18mA MAX)

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