What tool is used to determine when an installed bond has been properly adjusted?

The correct tool for determining when an installed bond has been properly adjusted is the voltmeter. A voltmeter is designed to measure the electrical potential difference, or voltage, between two points in an electrical circuit. In the context of pipeline corrosion control, ensuring that an installed bond is properly adjusted is crucial to maintaining the integrity of the pipeline and preventing corrosion.

When measuring the voltage across a bond, the readings help assess whether the bond is functioning correctly and if there is an adequate electrical connection. If the voltage levels are within acceptable limits, it indicates that the bond has been adjusted appropriately to meet the required standards. In situations where the voltage is too high or too low, adjustments can be made to ensure optimal bonding and corrosion protection.

Using other tools, such as an ampermeter for current measurement or a multimeter for a range of measurements, does not provide the specific voltage readings needed for this assessment. While an oscilloscope can display voltage waveforms, it is not typically used for this specific evaluation in corrosion control practices. Therefore, the voltmeter is the most appropriate and commonly used tool for verifying the adjustments of installed bonds.