Annual recalibration FAQ

FAQ: Annual recalibration

When do I need to get my Alicat device calibrated?

We recommend sending your units back for yearly recalibration.  This upholds your lifetime warranty and allows our service department to check for any damage to the device.  Over time minor physical changes to the laminar flow elements and pressure sensors inside the device and particulate deposits can cause the instrument’s calibrated flow curve to inaccurately represent the actual characteristics of the flow path.  With an annual recalibration, instruments are brought back to their optimal calibration specifications and, if need be, can be cleaned.

What is included in the annual recalibration?

Every recalibration starts with an evaluation.  Our service technicians will double check analog signals, settings, sensor health, LCD functionality, connector threading and even cosmetic issues like a scratch on the display.

After careful evaluation, our service technician will log “as found” data showing how precisely calibrated the unit was when it arrived. The device is compared to our local barometric pressure and a NIST traceable standard, and then calibration adjustments are made to achieve the closest to ideal calibration possible. If anything is noticed to be out of sync, we work with the customers to make sure they understand the condition of their Alicat and how we will recalibrate and, if needed, repair the device.

What happens if damage requiring more than calibration is found?

If damage to the device that requires additional service is discovered during the evaluation the recalibration will stop and we’ll get in touch with you before starting repairs.

What is on the calibration certificate?

Annual calibration comes with a NIST-traceable Certificate of Calibration which includes parameters and conditions related to the calibration. Go to Understanding Alicat Calibration and Accuracy Specifications for a detailed walkthrough of what is on the calibration certificate.

Additional benefits of annual recalibration

Recalibration is not only an opportunity to maintain the quality and precision of the device. It is an opportunity to update firmware or, if your application needs have changed, the perfect time to work with our Application Engineers to find a solution that allows your Alicat to be adjusted or even customized to meet your evolving needs without the hassle and expense of buying a whole new instrument. Many reconfiguration options are available for Alicat devices—from updating the display to changing the flow range.

How do I get a recalibration from Alicat?

To order a calibration through Alicat, use the service request form. On receipt of your request, we’ll issue you an RMA (Return of Materials Authorization) and send you shipping instructions.

How long does it take to recalibrate a device?

Lead time varies depending how many other orders and recalibrations are in process. Once your device arrives at the factory or service center, it typically takes 15 business days.

Please contact us at +1.888.290.6060 or with any questions.