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Metal Optical Sensors

Metal Optical Sensors

optical-steelOPT Series: Metal Optical Liquid Level Indictors

Madison Company offers durable stainless steel-housed optical liquid level sensors that provide a single point, push-pull, switched sensor output for high pressure applications. This sensor is designed for aggressive environments, capable of withstanding high and low temperatures and mechanical shock. These liquid sensors provide a low power signal, making these optical sensors ideal for microcontrollers, when needing to detect the absence or presence of clean, non-coating liquids. An infrared LED and phototransistor ensures dependable optical coupling when the sensor is in air to eliminate false readings. When the sensor tip is immersed in liquid, the phototransistor will switch the output state.


Standard Sensors and Mounting Thread Types

Sensor ModelThread TypeSensor TypeAvailabilityWetted Material
OPT4351-P1 1/2" BSPP Wet - (high in air) 4 weeks SS/Polysulphone
OPT4351-P2 1/2" BSPP Dry - (low in air) 4 weeks SS/Polysulphone
OPT4381-P1 1/2" NPT Wet - (high in air) In Stock SS/Polysulphone
OPT4381-P2 1/2" NPT Dry - (low in air) 4 weeks SS/Polysulphone

Other fittings and voltages available for order. Contact your sales representative to discuss your application.

Sensor Specifications

Supply Voltage (Vs) +10Vdc to +45Vdc
Output Type -P1 (Wet Sensing) output high in air
-P2 (Dry Sensing) output low in air
Output sink / source current Iout Max = 800mA
Operating Temperatures -40°C to +125°C (Extended)
Housing Material Stainless Steel (Polysulphone sensor tip)
Standard Leads 3M cable (IP67)
Pressure Rating 360 psi Max
Red Vs (supply)
Black 0V (Gnd)

ipdfStainless Optical Product Specifications