Calibration after repair

Keep the original fault with the repair record

For example, a meter may lose readings when its detachable lead moves. Tell the repairer which input was in use, identify the lead and meter separately, and record any replacements. If a fault prevented an as-found measurement, ask for that limitation to be written down.

• Describe a damaged probe or lead

When the repair changes the measuring assembly

Replacing a meter's input board and replacing a display window affect different parts of the instrument. Ask the repairer to describe the work performed, including any configuration restored from memory. Give the laboratory the functions and points used for release so it can quote the comparisons the owner needs after that work.

Where a sensor or probe was replaced, use the new serial number on the request. Keep the previous sensor's result and repair note with the job history. This prevents a fresh certificate for one combination from being filed as evidence for every probe that fits the readout.

Request results for the functions you rely on

For a multimeter used on a voltage bench, send the voltage ranges and working points. Add the current or resistance function if your team also uses it. Ask the provider to identify the accessories fitted during measurement, and link the calibration report to the repair reference in your register.

When handing a meter back to an electronics bench at IMT Sohna, give the name of the person who can approve its return to use. A workshop receiving another plant’s meter also needs the correct return address and asset tag.

• Select multimeter functions for calibration
• Coordinate a bench handover at IMT Sohna
• Arrange an interstate workshop return