What is the purpose of tension calibrator testing in bolt installation?

The purpose of tension calibrator testing in bolt installation is primarily to verify that the method of bolt installation has achieved the required bolt tension. This process is crucial because achieving the correct tension is essential for ensuring the structural integrity and performance of bolted connections. Proper tension ensures that the bolts can withstand the forces they will encounter in real-world applications, preventing issues such as loosening, failure, or damage over time.

By using a tension calibrator, technicians can ensure that the applied force meets the specifications required for the joint design. This type of testing helps to confirm that the installation process conforms to industry standards and best practices, which is vital in construction and engineering applications where safety and reliability are paramount.

Other options, such as measuring the diameter of bolts, inspecting bolt quality, or checking for rust, address different aspects of bolt installation but do not specifically relate to verifying that the correct tension is achieved during the installation process. These tasks are important in their own right but do not involve the key objective of tension calibrator testing.