Installation Instructions for Industrial Series Optical Liquid Level Sensors

　　GENERAL DESCRIPTION

　　The LLC Industrial Series liquid level sensor provides a single

　　point detection via a TTL compatible output.

　　Sensor range was designed to directly switch incandescent

　　indicators, sounders or relays.

　　An infra-red LED and phototransistor accurately positioned at

　　the base of the cone ensure good optical coupling between

　　the two when the sensor is in air. When the sensor’s cone is

　　immersed in liquid, the infra-red light escapes from the cone

　　causing a change in the amount of light at the phototransistor

　　which makes the output change state. Various electrical outputs

　　are available to suit different applications.

　　ELECTRICAL SPECIFICATIONS

　　Supply voltage (Vs) 5 to 15Vdc or 10 to 28Vdc (±5%)

　　Supply current 15 mA nominal

　　Output Type An “L” in the part number indicates that

　　The sensor output will go low in air.

　　Otherwise the output will be high in air

　　(see notes below).

　　Output sink/source

　　current (lo) 500 mA max

　　Operating temperature -40 to +85°C (standard temperature range) or

　　-40 to +125°C (extended temperature range)

　　Storage temperature -40 to +85°C (standard temperature range) or

　　-40 to +125°C (extended temperature range)

　　Housing Type LLC200 and

　　LLC210 series

　　LLC600 and

　　LLC610 series

　　Thread M12x1x8g with hex nut * ½” SAE with o-ring *

　　Tightening torque 1.5 N m/13.26 in lb max.

　　Pressure (using sealing washer/O-ring) 7 bar max

　　Mounting hole Ø12mm Ø ½ Inch

　　Housing Material Polysulphone

　　Sensor Termination 20AWG, 250mm PTFE Wires, 8mm Tinned