Regarding inquiries about the Jiangsu WT Carbon King 500mm heat treatment oxygen probe, here are detailed answers and recommendations:

1. Product Overview

Model: Carbon King 500mm (Suitable for carburization, carbonitriding, and other heat treatment processes)

Core Function: Real-time monitoring of the furnace's oxygen potential (carbon potential) by converting oxygen concentration into an electrical signal through a zirconia sensor, which is then fed back to the control system to achieve process control.

2. Key Parameters

Measurement Range: Typically 0.1~1000ppm O2 (or corresponding carbon potential 0.1%~1.5%C)

Operating Temperature: 600~1200℃ (Tolerance Limit to be confirmed for specific model)

Probe Length: 500mm (matching the furnace wall thickness during installation required)

Output Signal: Millivolts (mV) or Standard Current Signal (e.g., 4-20 mA)

3. Installation and Usage Precautions

Installation Location: Avoid near the furnace door or exhaust outlet, ensuring uniform airflow through the probe.

Sealing: Utilize specialized flanges or gaskets to prevent air leakage, which may affect the measurement.

Reference gas: Continuous supply of dry air (flow rate typically 5-20L/h) is required to ensure the stability of the reference electrode.

Calibration: Regularly calibrate using standard gas (such as carbon potential/air mixture) every 1-3 months, recommended.

4. Common Questions & Solutions

Signal Drift

Check if the reference gas is flowing smoothly and if the filter is clogged.

Sensor aging (typically lifespan of 1-3 years), requires replacement of zirconia components.

Slow Response

Clean probe carbon buildup (can gently wipe zirconia surface).

Confirm if the furnace temperature fluctuates excessively.

Abnormal Reading:

Check for loose circuit connections and interference resistance of the shielding wire.

Check for any abnormal furnace atmosphere conditions (such as ammonia-rich corrosion of probes).

5. Maintenance Recommendations

Daily: Record output curves and promptly investigate anomalies.

During shutdown: Remove the probe and seal it with the protective cap to prevent condensation from corroding it.

　　Spares: It is recommended to stock up on zirconia components and reference gas tubes to minimize downtime.

Alternative Options: PE, Marathon, and other brands with the same specifications, please confirm interface compatibility.