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OXY-LC-A100-455

OXY-LC-A100-455

SST Sensing Ltd.
Oxygen (O2) Sensor 4mA ~ 20mA
Active5 in stock

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

Combustion Control
Monitoring oxygen levels in flue gases to optimize boiler efficiency and reduce emissions.
Laboratory Incubators
Maintaining precise atmospheric oxygen concentrations for biological and cell culture research.
Industrial Safety
Oxygen depletion monitoring in confined spaces or gas storage facilities to ensure worker safety.
Modified Atmosphere Packaging
Controlling the gas mix in food preservation systems to extend shelf life.

Key Specifications

Type Oxygen (O2)
Output 4mA ~ 20mA
Accuracy +/-0.5%
Oxygen Range 260 mbar ~ 1.26 bar
Current - Supply 600mA
Voltage - Supply 20V ~ 28V
Operating Temperature -30degC ~ 70degC

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.

Also Consider

SHT31 Sensirion - Consider if you need to monitor ambient humidity and temperature alongside gas concentration in environmental chambers.