Multimeters, torque wrenches, gauges and thermometers: correct use, the settings that destroy an instrument, and the storage that keeps it reading true.
Common failure modes
- A click-type torque wrench stored at its highest setting
- A meter left on a current range and then put across a supply
- A gauge dropped and still trusted
- A reading taken before the instrument settled
- An instrument used far below the bottom of its range
Procedures
No procedure is published in this section yet. New procedures are added as their specifications can be traced to a manufacturer or government source.
Where this stops
Formal calibration needs a laboratory with traceable standards. This section covers care and correct use, and never certifies an instrument.