Single Channel Touch Sensor

This capacitive touch sensor allows almost any small metal object to become a touch switch, controlling a variety of electrical devices via a 10 Amp rated SPDT relay. The device works by detecting the change in capacitance that occurs when a person touches a connected metal object — the "electrode." With proper design of your sensing electrode, this unit can even detect proximity, or "near touch," through a variety of dielectrics such as plastic, wood, glass, or air.

This unit features automatic recalibration, eliminating the possibility of a "stuck on" sensor. In addition to automatic recalibration, the sensitivity (gain) level can be selected to operate in either a low or high range, and the output may be configured for momentary output or latching "toggle" outputs. The unit comes encapsulated in a sturdy plastic enclosure with integrated mounting feet standard.

FEATURES

• Allows any small conductive metal object to be used as a vandal-proof, weather-proof touch switch
• LED indicators for power and output state
• True capacitance sensing, not AC “hum”
• On board voltage regulator accepts a wide range of input voltages, from 8 to 24 VDC
• Dry contact relay outputs capable of switching up to 10A @ 240VAC / 24VDC
• Touch sensor can be configured with easy to use dip switches to automatically recalibrate itself if "stuck on" after 10 seconds, 60 seconds, or only upon power up
• Two selectable sensitivity (gain) levels
• Provides either momentary outputs or select the integrated toggle mode which makes all four channels into latching “touch-on, touch-off” switches, useful for continuous-on applications, such as a touch lamp
• With proper design of your sensing electrode, this unit can even detect proximity, or "near touch," through a variety of dielectrics such as plastic, wood, glass, or air

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TYPICAL APPLICATIONS

• Finger activated touch—the ultimate durability
  replacement for pushbuttons and switches
• Interactive museum exhibits
• Detect touch through walls
• Hand or foot proximity detection
• “Seat occupied” detector
• Animal detection
• Monitor for liquid levels
  —detects when exposed to liquids
• Monitor for materials handling
• Specialized input interface for a PLC, microcontroller,
  show control system, or computer