An SF₆ gas analyzer is only as valuable as the measurements it provides. Utilities and service teams rely on analyzer results to evaluate gas quality, identify potential concerns, and make informed decisions about gas-insulated equipment.
Even a small degree of measurement drift can affect those decisions. Routine professional calibration helps verify that an analyzer continues to provide accurate, repeatable results within its required tolerances. It can also uncover developing equipment issues before they lead to unreliable measurements, unexpected downtime, or more extensive repairs.
For Canadian owners of DILO analyzers, accessing professional calibration is now easier. In-Gas Direct and DILO have opened a new DILO calibration lab in Quebec, allowing eligible DILO analyzers to be calibrated in Canada by DILO-certified and trained In-Gas Direct service technicians.
Calibration is the process of comparing an analyzer’s measurements against verified reference standards. This determines whether the device is producing accurate results within its specified tolerances.
If a unit is found to be outside those tolerances, a qualified technician can identify the cause and make the necessary adjustments or repairs.
Calibration involves much more than confirming that an analyzer turns on and produces a reading. It is a detailed evaluation of how accurately the complete device performs and whether it can continue to provide reliable information in the field.
The primary purpose of calibration is to confirm measurement accuracy.Technicians use SF₆ analyzer results to make decisions about gas quality and equipment condition. If those results are inaccurate, the decisions based on them may also be incorrect. Regular calibration provides greater confidence that analyzer readings are accurate, consistent, and suitable for operational and maintenance decisions.
Calibration also provides an opportunity to inspect the analyzer more thoroughly. During the process, technicians may identify leaks, worn components, damaged accessories, software issues, or other abnormalities that are not immediately apparent during routine field use. Addressing these concerns early can help prevent a minor issue from becoming a larger and more expensive repair.
Routine calibration and maintenance help keep analyzers operating as intended. Equipment serviced at the recommended intervals generally requires fewer corrective repairs than equipment that goes extended periods without professional attention. Much like preventive maintenance on other critical equipment, consistent calibration can help protect the customer’s investment and extend the analyzer’s useful life.
An analyzer that produces questionable or inconsistent results can delay fieldwork and complicate maintenance decisions. Keeping calibration current reduces the risk of discovering a problem when the equipment is already needed for an important project. A planned calibration schedule also makes it easier to manage equipment availability and avoid unexpected disruptions.
DILO generally recommends calibrating SF₆ gas analyzers every two years. However, the appropriate interval may vary based on the analyzer model, frequency of use, operating conditions, customer procedures, and applicable quality requirements.
Calibration may be needed sooner if:
The analyzer produces inconsistent or unexpected results.
The unit has been damaged or subjected to rough handling.
The analyzer has been exposed to contaminated gas or harsh operating conditions.
Internal quality procedures require a shorter calibration interval.
The equipment has undergone a repair that could affect measurement accuracy.
Customers should follow the recommendations for their specific analyzer and maintain clear records of completed calibration services.
The exact calibration process depends on the analyzer model and the condition of the equipment. However, professional calibration typically includes several important steps.
The technician records the customer and equipment information, documents the analyzer’s condition, and confirms the accessories received with the unit.
Photographs may also be taken to create a clear record of the analyzer and its condition upon arrival.
Before making adjustments, the technician tests the analyzer in its received condition. This helps establish how the device has been performing and whether any measurements fall outside the required tolerances.
The technician inspects the unit for visible damage, leaks, worn components, and other potential concerns. Accessories may also be evaluated for damage or improper operation.
Necessary adjustments are completed, and the technician determines whether repairs, software updates, or applicable equipment updates are required.
If additional repairs are needed, the findings are documented and communicated to the customer for approval.
The analyzer is tested using the appropriate reference gases and standards. Results are recorded, and the device is adjusted as necessary to bring its measurements within the required tolerances.
After the approved work is completed, the technician performs final accuracy checks and documents the completed service. The analyzer is then returned with the applicable calibration documentation.
This comprehensive process is why analyzer calibration should be performed by trained professionals who understand both the equipment and the measurements it is designed to provide.
Professional calibration requires more than the correct reference gas or testing equipment. The technician must also know how to interpret the results, recognize false or inconsistent readings, identify equipment abnormalities, and make the appropriate adjustments.
The service technicians performing calibrations at the new Quebec facility are DILO-certified and trained. They understand DILO analyzers and follow the established DILO calibration process.
Customers receive the confidence of professional DILO calibration with the convenience and direct support of the In-Gas Direct team.
With the opening of the new DILO calibration lab in Quebec, Canadian customers can access professional calibration without sending eligible analyzers across the Canada–United States border. Keeping equipment in Canada provides several practical advantages:
No cross-border customs paperwork for calibration shipments
No brokerage delays associated with sending equipment to the United States
Fewer potential cross-border fees and complications
Faster, more predictable turnaround
A shorter and simpler shipping process
Calibration performed by DILO-certified and trained In-Gas Direct technicians
The trusted DILO calibration process, now closer to Canadian customers
The result is a more direct path to the professional calibration Canadian customers depend on.
The same trusted process and commitment to accuracy—now closer to home.
If your DILO analyzer is approaching its recommended calibration date—or if you are uncertain about its current calibration status—In-Gas Direct can help determine the appropriate next step.
Have an analyzer due for calibration? Request Calibration Services.