Storage Modes for Measurement Values and Contextual Information

A portable handheld measurement device, comprising:

• a user input device;
• an output device;
• measurement circuitry configured to measure one or more parameters and generate corresponding measurement values, wherein the measurement values are associated with contextual data;
• a processor;
• and
• a storage system having stored therein computer-executable instructions configured to cause the portable handheld measurement device to:
• automatically store the measurement values and the associated contextual data in the storage system according to a persistent storage mode;
• and
• automatically store the measurement values in the storage system according to a limited replay storage mode, wherein the limited replay storage mode comprises a storage limitation that is not present in the persistent storage mode.

A portable handheld measurement device, comprising:

• an input/output interface comprising a display;
• measurement circuitry configured to measure one or more parameters and generate corresponding measurement values, wherein the measurement values are associated with contextual data;
• a processor;
• and
• a storage system comprising volatile memory and nonvolatile memory, the storage system having stored therein computer-executable instructions configured to cause the portable handheld measurement device to:
• automatically store the measurement values and the associated contextual data in the nonvolatile memory according to a persistent storage mode;
• automatically store the measurement values in the volatile memory according to a limited replay storage mode, wherein the limited replay mode comprises a storage limitation that is not present in the persistent storage mode;
• display a user interface comprising at least some of the measurement values stored according to the limited replay storage mode;
• receive user input via the input/output interface;
• and
• display a modified version of the user interface based at least in part on the user input.