FineTek SDL1 Liquid Leakage Sensor

FineTek SDL1 Liquid Leakage Sensor

Catching a leak early is the difference between a quick wipe-up and expensive equipment damage — the FineTek SDL1 liquid leakage sensor is a compact infrared optical detector built to sense liquid the moment it appears, with fast, highly sensitive response.

How It Works

Inside the sensor sit infrared luminous parts, infrared light-receiving parts, and a prism, working together on the principle of light reflection. When liquid touches the prism, the reflected light path changes and the output triggers. As soon as the liquid clears, the sensor resets to its normal state automatically.

Key Features

  • Infrared optical detection with no moving parts
  • Detects leaks on stainless steel, plastic, and wooden surfaces
  • Fast reaction and high sensitivity
  • Immediate reset once the liquid is removed
  • Small footprint, simple to mount

Applications

  • Leak detection under pumps, valves, and pipework
  • Machinery base and plant room protection
  • Data centre and equipment room monitoring

Industries Served

  • Semiconductor and electronics
  • Chemical processing
  • Building services and data centres
  • Food and beverage
ModelSDL1
Detection PrincipleInfrared optical (light reflection) leak detection
Wetted MaterialPFA or PP; cable jacket options PFA, PVC/XLPE, or XLPE
Power Supply12-24 VDC, 30mA (no load) / 80mA (full load)
Output Signal3-wire NPN (NO normal / NC on leakage) or 3-wire PNP (NC normal / NO on leakage)
Max Output50mA; residual voltage max 1V @ 50mA; max 30VDC (NPN) / 24VDC (PNP)
Cable Length2.2m standard (3-core cable)
Sensing Area36.3 x 24.5 mm
Mounting Base23.1 x 21.9 mm or 26.6 x 22.5 mm
Operating Temperature-20 to 80 °C (non-freezing)
Humidity30-85% RH, non-condensing
Protection RatingIP67, with reverse-polarity and short-circuit protection
CertificationsUL certified (E324746), CE compliant, lead-free
ApplicationsLeak detection on floors, drip trays, and equipment bases for chemical, semiconductor, and pure-water systems

Download FineTek SDL1 Liquid Leakage Sensor information here

Datasheet: Fine-Tek-SDL1-Liquid-Leakage-Sensor
Manual:

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