CAC Gas & Instrumentation

28/10/2026

Cooling is one of the most important—and energy-intensive—systems in an Australian data centre.
Chillers, computer-room air-conditioning units, heat exchangers, and liquid-cooling systems may contain refrigerants that, if released, can pose environmental, ozone-depleting, asphyxiation, or flammability risks.

Depending on the refrigerant and system design, detectors may be installed:
• Near compressors, valves and mechanical equipment
• Around refrigerant pipework
• In enclosed chiller or plant rooms
• Beneath raised floors
• At low points where heavier vapours may accumulate

Refrigerant calibration or test standards let technicians confirm these detectors respond to the intended refrigerant at the required concentration.
Selecting the gas-control equipment is equally important. Some mixtures require specific regulator materials, tubing, flow rates or handling methods to maintain mixture integrity.

CAC Gas supplies:
• Specialty and calibration gas mixtures
• Regulators for non-refillable and high-pressure cylinders
• Stainless-steel and nickel-plated brass options
• Teflon-lined and application-specific tubing
• Portable calibration kits
• Customised gas distribution systems

In Australia, work involving regulated refrigerants that could cause a release must comply with applicable refrigerant-handling requirements.

Tell CAC Gas the refrigerant, detector model and measuring range—and we can help identify the appropriate calibration setup. [email protected]

21/10/2026

Lithium-ion UPS systems and battery energy storage systems are becoming increasingly important within modern data-centre infrastructure.
During abnormal conditions or a thermal-runaway event, lithium-ion batteries may release a complex mix of gases and vapours.

Depending on the battery chemistry and detection technology, monitoring may include:
• Carbon monoxide
• Hydrogen
• Volatile organic compounds
• Electrolyte vapours
• Other chemistry-specific gases

This is not a one-gas-fits-all application.

The calibration or test gas must be selected according to the detector’s sensing technology, measuring range and manufacturer specifications. Substituting an unrelated gas can produce misleading results, particularly where sensors have different cross-sensitivities.

CAC Gas supports specialised applications with:
• Single-component and multi-component gas mixtures
• Customised calibration-gas sourcing
• Certified and ISO 17025 mixture options
• Material-compatible regulators and tubing
• Portable cylinder and calibration-kit formats
• Gas-control systems for repeatable testing

As battery technologies evolve, calibration programs should be reviewed—not simply carried over from an older installation.

Speak with CAC Gas before specifying a calibration mixture for a new battery detection system. [email protected]

20/10/2026

The MICRO300 Precision Regulator, specially configured by CAC Gas & Instrumentation for highly sensitive applications, is designed for customers who need the most accurate calibrations.
The MICRO300 features fully supported ‘sensitive’ pistons and a low internal volume to reduce wasted gas and minimise reactions. The regulator is available with or without SilcoNert® 2000 coating.

Email: [email protected] ; [email protected]

The MICRO300 Precision Regulator, specially configured by CAC Gas &...

19/10/2026

14/10/2026

A data centre cannot afford to lose power—which is why uninterruptible power supply systems are essential.

However, traditional lead-acid batteries can release hydrogen during charging, particularly during boost charging, overcharging or battery deterioration. Hydrogen is a flammable and explosive hazard. It is colourless, odourless and lighter than air. In an enclosed battery room, it can collect near ceilings or other high points.

Fixed hydrogen detectors may be connected to:
• Local alarms
• Mechanical ventilation
• Building management systems
• Remote facility monitoring
• Emergency-response controls

But installing a detector is only the beginning.

A suitable hydrogen calibration gas is used to confirm that the sensor responds correctly at a known concentration. A bump test can verify basic response and alarms, while a full calibration adjusts the instrument when required.

CAC Gas can help facilities and service contractors select:
• Appropriate hydrogen calibration mixtures
• Convenient non-refillable or high-pressure cylinders
• Fixed-flow or demand-flow regulators
• Compatible tubing and fittings
• Portable calibration kits
• Gas distribution and test-station solutions

Calibration concentrations, flow rates and procedures should always match the detector manufacturer’s instructions and the facility’s risk assessment.

Maintaining hydrogen detectors across multiple sites? Ask CAC Gas about standardising your calibration equipment. [email protected]

12/10/2026

We are often asked for many different gases for the same applications. When possible, you can combine the required gases into the same cylinder to reduce overall gas cost. When creating custom gas mixtures, you must be aware of potential issues when mixing different compounds together.

Read more: https://cacgas.com.au/blog/general-rules-for-designing-custom-gas-mixtures/

07/10/2026

Australia’s data-centre sector is expanding rapidly—but behind every server rack is a complex network of cooling, power, battery and safety systems.
Many of these systems rely on gas detectors and analysers to identify hazards or confirm equipment performance.

Calibration gases provide a known gas concentration that can be introduced to an instrument to verify that it:

✓ Detects the correct gas
✓ Responds at the required concentration
✓ Activates alarms and connected controls
✓ Produces reliable, repeatable readings

Within a data centre, calibration and specialty gases may support:

• Hydrogen detection in UPS battery rooms
• Refrigerant leak detection in cooling plants
• Generator-room safety and exhaust analysis
• Oxygen monitoring around gaseous fire-suppression systems
• Testing of instruments used around gas-insulated switchgear
• Portable detector bump testing and calibration

CAC Gas & Instrumentation supplies certified and reference gas mixtures, non-refillable and high-pressure cylinders, regulators, calibration kits, tubing and customised gas-control systems.

Because reliable infrastructure starts with reliable measurement.

Talk to CAC Gas about the calibration requirements for your data-centre facility or service team.
[email protected]

17/09/2026

Portable detectors, fixed gas detection systems and process analysers must be checked against a known gas response. A bump test confirms that a detector responds; calibration aligns its reading with a certified standard.

CAC Gas provides calibration gas mixtures, regulators, fittings and calibration and bump-test stations designed to simplify this work for instrument technicians and field teams. Systems can operate as stand-alone stations or be incorporated into a complete gas distribution system.

For a natural gas application, the calibration gas should reflect the target gas, often methane, along with the detector, range and site requirements.

From wellhead to end user, measurement confidence is not a one-time task. It is maintained at every checkpoint.

Find the right mixture and delivery system: www.cacgas.com.au

15/09/2026

https://cacgas.com.au/blog/biogas-emissions-monitoring/

10/09/2026

Before gas reaches homes, businesses and industrial users, odorant is added to make leaks easier to recognise. The system needs to dose accurately across changing pipeline flow without adding unnecessary emissions.

CAC Gas supplies Welker odorant injection systems, from turnkey and portable systems to pump and pumpless configurations. Zero-emissions options eliminate the use of pipeline gas as the instrument supply, so no natural gas is released during normal operation.

CAC Gas can also supply probes, monitors, eliminators, filters, cartridges, spill kits and maintenance accessories to support the wider odorisation program.

Reliable odorisation is a small step in the diagram, but a critical one in public safety. www.cacgas.com.au