|
|
|
|
|
 |
 |
 |
|
 |
 |
Photoelectric Sensors.
Utilising light to detect objects is a long proven method of process control.
Sensors can operate an output when a light beam is broken by the target(Dark-on) or unbroken (Light-on).
Outputs can be relay, solid state PNP/NPN or analogue voltage or current for variable distance.
Variations include:
Thru-beam, Retro-reflective,
Diffuse, Fibre Optic
|
|
 |
 |
 |
|
|
|
|
|
|
|
|
 |
|
Proximity Sensors, Inductive, Capacitive & Ultrasonic.
Inductive proximity sensors are good for detecting metals with ranges up to 20mm.
Capacitive sensors detect metal or non-metal, solid, liquid or powder with ranges up to 30mm.
Ultrasonic sensors use the echo of high frequency sound pulses to determine distance.
Outputs are generally solid state, PNP/NPN low voltage DC, thyristor for AC voltage & analogue (4-20mA).
|
|
 |
|
|
|
|
|
|
|
 |
 |
|
|
|
 |
|
Light Curtains
A full range of safety light curtains are available, providing Type 2 or Type 4 protection.
Providing complete machine operator safety.
|
|
 |
|
 |
|
|
|
|
|
|
|
|
