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Capacitance Level Switch - Alternative

Capacitance Level Switch Alternative

An alternative to Capacitance Level Switch technology is SST’s Optomax industrial glass range of liquid level switches. This level sensor is one of our most durable and reliable point level sensors due to their stainless steel and glass construction. The Optomax Industrial Glass Sensor is known to be a good alternative to Gems range of capacitance oil level sensors and switches. The Optomax Industrial Glass range is the ideal solution for applications such as power generation equipment, off-highway vehicles, generators, food and beverage, medical, rail, HVAC and coolant monitoring.

With little maintenance SST’s level switches mounts in any position (for best performance mounting at the side and bottom of the application is recommended), they are compact and offer industrial supply voltages and outputs that can directly drive loads.

The 316L stainless steel single point liquid level switch can operate up to 600 bar (8700 psi) with housing threads suitable for external sensor mounting and for use in operating temperature range -40 to 125°C.

Samples for the Optomax Industrial Glass range of liquid level switches are available on request for this product. For high volume production orders, please contact us.

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TECHNICAL SPECIFICATIONS

Supply Voltage (Vs) 4.5VDC to 15.4VDC
  8VDC to 30VDC
Supply Current (ls) 2.5mA max. (Vs = 15.4VDC) or
  7.5mA max. (Vs = 30VDC)
Output Sink and Source Current (lout) 1A
Operating Temperatures Standard: -25°C to +80°C
  Extended: -40°C to +125°C
Storage Temperatures Standard: -30°C to +85°C
  Extended: -40°C to +125°C
Operating Pressure 0 to 600bar (0 to 8700psi)
Housing Material 316L Stainless steel with glass tip
Sensor Termination Flying leads or M12 connector

OUTPUT VALUES

Output Voltage (Vout): lout = 1A
Vs = 4.5 - 15.4VDC  
Output High Vout = Vs - 1.5V max
Output Low Vout = 0V + 0.5V max
Vs = 8 - 30VDC  
Output High Vout = Vs - 1.8V max
Output Low Vout = 0V + 0.7V max

OUTLINE DRAWINGS

ELECTRICAL INTERFACE

Wire Designation
Red Vs
Green Output
Blue 0V

FEATURES

  • 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
  • Thread options for external mounting
  • Stainless steel housing with simex glass sensing tip
  • Very high operating pressure
  • Built-in output delays available on request for applications where sloshing causes intermittent switching

BENEFITS

  • Alternative to capacitance level switches
  • 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
  • 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

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