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Optomax Industrial Range of Liquid Level Switches

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Specification

TECHNICAL SPECIFICATIONS

Supply Voltages (Vs) 4.5 to 15.4Vdc
or 8 to 30Vdc
Supply Currents (Is) 2.5mA max. (Vs = 4.5 to 15.4Vdc)
or 7.5mA max. (Vs = 8 to 30Vdc)
Output Sink and Source Current (Iout) 1A
Operating Temperatures Standard: -25 to +80°C
or Extended: -40 to +125°C
(Above +85°C Trogamid is suitable for use in water based liquids, oil based liquids can cause deformation of the sensing tip and must be tested for compatibility)
Storage Temperatures Standard: -30 to +85°C
or Extended: -40 to +125°C
Housing Materials Polysulfone (Standard)
or Trogamid
Sensor Termination 20AWG, 250mm PTFE wires, 8mm tinned
Operating Pressure 0 to 7 bar

OUTLINE DRAWINGS

liquid-level-Ind_dwg2

OUTPUT VALUES

Output Voltage (Vout): Iout = 1A
Vs = 4.5 to 15.4Vdc
Output High Vout = Vs – 1.5V max
Output Low Vout = 0V + 0.5V max
Output Voltage (Vout): Iout = 1A
Vs = 8 to 30Vdc
Output High Vout = Vs – 1.8V max
Output Low Vout = 0V + 0.7V max

ELECTRICAL INTERFACE

Wire Designation
Red Vs
Green Output*
Blue 0V

*See part numbering guide for output type and logic

white

ce-mark-2 rohs-icon-2

Features & Benefits

FEATURES

  • Reverse polarity, ESD and transient over-voltage protected
  • Wide supply voltage ranges
  • N and P type output configurations, capable of sinking or sourcing up to 1A, can directly drive loads
  • Standard and extended temperature ranges available
  • Polysulfone or Trogamid housing material options
  • Thread options for external mounting
  • High operating pressure

BENEFITS

  • Solid state so no moving parts to cause unreliability
  • Small in size so they can be installed in applications where space is limited
  • Can detect tiny amounts of liquid when positioned correctly, ideal for leak detection
  • Fast response time
  • Repeatable switching point
  • Built-in output delays available on request for applications where sloshing causes intermittent switching
  • Very robust permitting use in a wide range of fluids and chemicals


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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