What is the purpose of the METER Card form OPNAV 4790/58?

• A. Recording and inducting TMDE for calibration or repair.
• B. Recording personnel qualifications.
• C. Tracking inventory shipments.
• D. Capturing maintenance work orders.

Answer: (A)

The key idea is to manage the calibration life cycle of Test, Measurement, and Diagnostic Equipment (TMDE). The METER Card (OPNAV 4790/58) serves as the official record used to record TMDE’s calibration status and to induct the item into calibration or repair.

This form captures essential details like what equipment it is, its identification numbers, calibration due date, and the calibration or repair action required. It is used when sending the item to a calibration facility or repair shop, marking it as in process and providing traceability for when it returns and is put back into service. After calibration or repair, the card is updated with the new due date and results, ensuring the equipment used in operations remains within verified accuracy limits.

In short, this card is specifically about keeping TMDE calibrated, tracked, and traceable, not about personnel qualifications, shipments in general, or maintenance work orders.