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POS Glass Tip Range of Liquid Level Switches

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Specification

TECHNICAL SPECIFICATIONS

Supply Voltage (Vs) 12 to 28Vdc
Supply Current (Is) 25mA max
Output Sink and Source Current (Iout) 200mA max
Operating Temperatures Standard: -25°C to +100°C
or Extended: -40°C to +140°C
Storage Temperatures Standard: -25°C to +100°C
or Extended: -40°C to +140°C
Housing Material Stainless steel with simax crystal glass tip
Sensor Terminations M12 Brad Harrison connector
or PUR 3×0.25mm², 2m cable
Operating Pressure 0 to 80 bar

OUTLINE DRAWINGS

LL-POS_dwgs2


OUTPUT VALUES

Output Voltage (Vout): Iout = 200mA
Vs = 12 to 28Vdc
Output High Vout = Vs – 1.5V max
Output Low Vout = 0V + 0.5V max

ELECTRICAL INTERFACE

Wire Designation
Brown Vs
Black Output*
Blue 0V

*See part numbering guide for output type and logic

**See datasheet for information on Brad Harrison connector

Features & Benefits

FEATURES

  • Designed for applications requiring a robust metal housing and a wide operating temperature range
  • Reverse polarity, ESD, transient over-voltage and short circuit protected
  • Wide supply voltage ranges
  • N and P type output configurations, capable of sinking or sourcing up to 200mA, can directly drive small loads
  • Standard and extended temperature ranges available
  • Stainless steel housing with simex glass sensing tip
  • Choice of terminations
  • Very high operating pressure
  • LED output indication

BENEFITS

  • Solid state so no moving parts to cause unreliability
  • Fast response time
  • Repeatable switching point
  • Very robust construction permitting use in a wide range of demanding applications
  • Compatible with most fluids and chemicals
  • SST Sensing’s highest operating temperature liquid level switch

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OPERATING PRINCIPLE

Liquid sensing 001_450

When in air the infrared light is reflected back to the detector

 

Liquid sensing 002_450

When in liquid the infrared light is refracted and the output switches

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