Testo CxHy Retrofit Sensor

The Testo CxHy Retrofit Sensor 0554 2300 lets you add hydrocarbon measurement capability to your compatible Testo flue gas analyser. It's a straightforward upgrade for Australian techs needing to check emissions from gas appliances or industrial burners.

It's a practical choice; you just slot the pre-calibrated sensor in yourself, which saves a trip to the service centre and gets you back on the job quickly.

Best for: HVAC technicians, combustion engineers, and industrial maintenance teams who need to monitor hydrocarbon emissions, especially when optimising gas appliances or troubleshooting burners and furnaces.

Compatibility

This sensor is designed for use with Testo 350 series flue gas analysers, including the Testo 350 Portable Emission Analyzer (0632 3510) and the Testo 350 Process Kit (400563 3511). For accurate measurement, the flue gas requires a minimum oxygen (O2) content of 2%.

If you're running a different model, check fittings and specs before ordering.

Features

• Adds CxHy (hydrocarbon) measurement as an extra parameter to your compatible Testo 350 analyser.
• Pre-calibrated to methane (CH₄) from the factory, ready for immediate use.
• User-calibratable to other specific hydrocarbon gases if your job requires it.
• Designed for easy, self-installation by the user – no special tools or service technician needed.
• Measures a range of hydrocarbons including methane, propane, and butane.

Technical Specifications

What's in the Box

• 1 x Testo CxHy retrofit sensor

Using It on the Job

1. Ensure your Testo 350 analyser is powered off and isolated before attempting installation.
2. Carefully open the analyser housing according to the manufacturer's instructions in your analyser manual.
3. Locate the correct sensor slot and firmly insert the pre-calibrated CxHy sensor.
4. Close the analyser housing, power it on, and confirm the CxHy measurement parameter is now active in the menu.
5. Before taking critical readings, perform a zeroing procedure or check against a known gas source to verify proper operation.

Limitations & Safety Notes

• This sensor requires a minimum of 2% oxygen (O2) content in the flue gas for accurate measurement readings.
• Only compatible with specified Testo 350 series flue gas analysers. Verify your model before purchase.
• Always refer to your Testo analyser's operating manual for specific installation, calibration, and safety procedures.
• Ensure the analyser is powered off and disconnected from any power source before installing or replacing sensors to prevent damage.

Tradie Pro Tip

If you're often switching between different hydrocarbon fuels like LPG or natural gas, remember you can user-calibrate this sensor. Do a fresh calibration for the specific gas you're testing to get the most accurate ppm readings, especially for propane or butane. It makes a difference to your diagnostics.

Pair With

Pair with your Testo 350 Flue Gas Analyser and other Testo emissions testing accessories for comprehensive diagnostics and reporting.