The Masoneilan 496 Series switches are configurable as electro-mechanical switches, proximity switches, or opto-electronic position transmitters.
The 496 Series instrument is a non-contact opto-electronic positioner transmitter that delivers a 4-20mA analog output signal corresponding to the valve’s position. This device is suitable for installation on both rotary and reciprocating valves. The opto-electronic sensor functions similarly to a conventional potentiometer, with its output voltage being directly related to the rotation of its axis.