Description

SMART Electrochemical trace/percent Oxygen Analyzer uses a Micro-Fuel Cell sensor, which can measure trace oxygen (ppm level) or percentage oxygen (% level), achieving high-precision and high-repeatability oxygen measurement. It is suitable for a variety of industrial process gas monitoring.

Principle

The core of the electrochemical oxygen analyzer is a micro fuel cell sensor, which works on the principle of selective electrochemical reduction of oxygen molecules. Oxygen diffuses into the sensor through a polytetrafluoroethylene (Teflon) membrane, where a reduction reaction occurs at the platinum-catalyzed cathode:

4e- + 4H+ + O2 → 2H2O

When the oxygen is reduced at the cathode, lead is simultaneously oxidized at the anode:

2Pb + 2H2O → 2PbO + 4H+ + 4e-

The overall reaction for the fuel cell is the SUM of the half reactions above:

2Pb + O2 → 2PbO

The electrons released at the surface of the anode flow to the cathode surface when an external electrical path is provided. The current is proportional to the amount of oxygen reaching the cathode. It is measured and used to determine the oxygen concentration in the gas mixture.

If the total pressure increases, the rate that oxygen reaches the cathode through the diffusing membrane will also increase. The electron transfer, and therefore the external current, will increase, even though the oxygen concentration of the sample has not changed. It is therefore important that the sample pressure at the fuel cell (usually vent pressure) remain relatively constant between calibrations.

Application

▲Air separation and liquefaction

▲Pure, gaseous hydrocarbon stream monitoring

▲Emissions monitoring

▲Protective atmosphere blanketing of primary liquid feedstocks and flammable liquids

▲Process monitoring of gaseous monomers - vinyl chloride, propylene, butadiene, isoprene or ethylene

▲Gas purity certification

▲Semi conductor manufacturing

Advantage

★Advanced micro fuel cell, suitable for ppm or percentage level detection.

★Suitable for most gas backgrounds.

★Insensitive to flow changes.

★Strong environmental adaptability, built-in temperature compensation technology.

★Strong anti-gas interference capability.

★Accurate and reliable measurement, good repeatability.

★Rugged and durable design.

★Quick installation and easy operation.

★The technology is mature, it is widely used, and its cost is relatively low.

Features

• Quick and convenient

    The navigation menu contains 6 languages, which can be operated easily.

    Uses M12 connector to connect with sensor, Plug-and-play.

• Process safety

    7" large size color LCD touch screen, convenient and safe touch operation and debugging

    Large size screen with red flashing alarm, clearly visible from long distances and in dark areas

    Alarm immediately, safe the process

    Using M12 connector to connect with sensor, no risk of wrong connection

• Data alarm record

    Real-time data curve display

    Record function for up to 6000 alarms

• Optional mass flow measurement and controller

• Expert calibration function

   Multi-point calibration function up to 9 point

• Powerful self-diagnosis function

    Built-in heartbeat monitoring function and watchdog

    Monitor the status of analyzer and sensors, and promptly remind customers to take necessary maintenance

    High-standard hardware and software security and password protection

• Powerful control function

    High(low) limit control function

    Optional: Timer control(automatic cleaning) function

    Optional: analog PID control function

    Optional: PWM control function

• Flexible fieldbus communication functions for IOT4.0

    Optional fieldbus MODBUS, HART, Foundation Fieldbus FF, PROFIBUS PA, PROFIBUS DP, etc.

Product datasheet: Electrochemical O2 Analyzer(ppm/percent) , if you need more information, please contact us at info@mzdd.de.

Measurement components and ranges

• O2:         0 ~ 10/100/1000/10000ppm

• O2:         0 ~ 10% / 25% / 100%

Glove boxes, oxygen analyzer, Welding and soldering, Semiconductor, Heat and surface treatment,Combustion plants, porcelain and ceramic firing, Vacuum process control, industrial plasma processes, Test gas generator for laboratory equipment, Oxygen analyzer, Environmental and Process Measurement Technology (CEMS)