Requirements For Monitoring And Recording Devices (Rule 53)

Digital recording devices shall be used for the purpose of recording current and voltage for extended periods, such as the forty-eight (48) hour test. The recording devices shall have the same level of resolution and accuracy as the meters being used for the measurements. Monitoring systems, which combine measuring and recording functions in a single instrument, shall have the same level of resolution and accuracy as specified in Section 051. Recording devices and monitoring systems shall be capable of recording transient deviations of one-tenth (0.1) second or less in duration from the steady state. Digital recording devices, which have deviation settings, shall permit the deviation setting to be set “low” enough to meet the resolution and accuracy requirements in Subsection 051.01 of these rules. All recording devices shall be able to log the time and date of all data recorded and shall have their internal clocks synchronized. (4-6-23)