OXY-LC-A100-455
Overview
The OXY-LC-A100-455 is an Oxygen (O2) sensor interface board from SST Sensing designed for industrial-grade oxygen measurement ranging from 0.1% to 100%. It features multiple output interfaces including 4-20mA current loop and RS485, with integrated barometric pressure compensation for improved accuracy in varying environmental conditions. The board utilizes adaptive software filtering and operates on a 20V to 28V DC supply.
Why Choose This Part
The board offers high precision with +/-0.5% accuracy and built-in protection against reverse voltage and transient overvoltages. Its support for both analog (4-20mA, PWM, Voltage) and digital (RS485) outputs allows for flexible integration into legacy PLC systems and modern IoT gateways alike.
Applications
Key Specifications
Getting Started
Connect the board to a 24V DC power supply capable of providing at least 600mA to support the sensor heater. For initial testing, the 4-20mA output can be monitored with a standard shunt resistor and ADC, or the RS485 interface can be used for digital configuration and data logging using a PC-based terminal.



