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Home | Products | Level | Level Switches | Optical | SD20

SD20 – Optical Level Switches

Economic, Reliable, Level control for food products, Grease/oil, Waste Water, Liquor and Hydraulics.

optical-level-switches-finetek-sd20gar
Optical Level Switch Finetek SD20 Dimensions

SD20 Features

  • Simple, compact, and robust
  • No moving parts
  • Built-in, solid-state electronics
  • Easily removed, cleaned, and reinstalled
  • LED switch indication

 

The SD20 optical level switch uses the principle of light reflection in a prism to sense the absence or presence of a liquid at the point where the sensor is installed in a tank, pipeline or other type of container.

Brand: FINETEK
Usually in stock
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  • Product Details
  • Technical Specs
  • Documents

SD20 is an optical level switch line that emit a beam of infrared light into the tip (prism) of the sensor. In the absence of the liquid at the sensor tip the light is reflected back to the sensors receiver.

When the target liquid is present surrounding the sensor tip, the light is refracted into the liquid and away from the SD series level switch receiving component thus how liquid presence and absence is determined.

The SD20 output will be activated accordingly. These optical level switch devices are compact, cost-effective and ideal for a wide variety of fluids.

SD20 Specifications
Supply voltage 10~28Vdc
Tip material PC / PES
Housing material PC / PES
Load current <=100 mA
Current consumption <15 mA
Output mode NPN/PNP
Output function NO/NC
Electrical protection reverse polarity protection, short circuit protection
Ambient temperature -10~80°C
Operation temperature -10~125°C
Pressure Max 10Bar
IP rating IP67
Indicator light Red LED
Cable specifications PVC, 24 AWG, L=2 m, 3C (blue, green, black, and brown)
Installation torque 50 kgf-cm
Connection size 3/8""BSP
UL File Number SA44153
Note: PES(polyethersulfone) is similar PSU(polysulfone),
but its heat resistance, strength, and stiffness is better.
  • Finetek SD20 Optical Level Switch - Brochure 2.06 MB

Product Range

Product Range:
CodeSpecificationsPriceQuantity
SD20GARP1

Optical Level Switch, PNP Open collector, N/O.

$108.00
SD20GARP0

Optical Level Switch, PNP Open collector, N/C.

$108.00
SD20GARN1

Optical Level Switch, NPN Open collector, N/O.

$108.00
SD20GARN0

Optical Level Switch, NPN Open collector, N/C.

$108.00
All prices are in NZ$, and GST exclusive and are subject to change without notice.

Intech Instruments Ltd are the New Zealand distributor for Finetek products. Please contact the Finetek distributor in your country if you require sales or service support for Finetek products.

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  • (09) 827-1930Auckland
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Henderson, Auckland 0610

Phone: (09) 827 1930

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