What is an effective way for technicians to troubleshoot faulty metering devices?

Verifying installation and calibration is essential for troubleshooting faulty metering devices because these steps ensure that the devices are functioning as intended and measuring accurately. Proper installation according to manufacturer specifications is critical, as improper installation can lead to measurement errors or device failures. Calibration is equally important, as it aligns the device with known standards, ensuring that its readings are accurate. If a device is not calibrated correctly, it may yield readings that misrepresent the actual conditions, thus misleading technicians trying to diagnose issues.

In contrast, checking aesthetics of the installation does not provide any useful information regarding the functionality of the device. Ignoring previous maintenance records overlooks valuable insights into the device's history, which can be crucial for identifying recurrent issues or design flaws. Disregarding known standards undermines the troubleshooting process, as it moves away from established guidelines that ensure reliable measurement and performance. Therefore, verifying installation and calibration directly addresses the core of the troubleshooting process for metering devices.