ESCO Air Conditioning Practice Exam

When using an electronic leak detector, the sensor probe should be moved at approximately:

1. 1 inch per second

2. 1 inch per two seconds

3. 2 inches per second

4. 2 inches per three seconds

The correct answer is: 1 inch per second

When using an electronic leak detector, it is crucial to move the sensor probe at a slow and steady pace to ensure accurate readings. Moving the sensor probe too quickly could result in missing leaks or not detecting them correctly. Therefore, moving the sensor probe at approximately 1 inch per second allows for thorough and precise leak detection. This speed provides enough time for the detector to effectively sense any refrigerant leaks in the system.