What should be done if a testing device fails to function properly during antifreeze testing?

When a testing device fails to function properly during antifreeze testing, it is crucial to check the calibration or replace the device. This approach ensures the accuracy and reliability of the test results. A malfunctioning device can lead to incorrect readings, which might compromise the integrity of the antifreeze system being tested. Calibration checks can identify whether the device is out of adjustment, requiring minor repairs or recalibration to restore its proper function.

If the device cannot be calibrated or repaired, replacing it ensures that future tests will not be compromised, maintaining industry standards and safety regulations. This proactive stance is vital in ensuring that all water-based systems, including those using antifreeze, are operating correctly and efficiently. Therefore, taking action to rectify the situation with the testing device is the most responsible and effective approach.