Measuring cycle time

Number of periods taken as the basis for the calculation of the true RMS value. The higher this value the more uniform the output values. A minimum of 4 periods is necessary; however a minimum of 5 periods is recommended.
The default value of 10 periods has proven to be a good compromise between stability and speed.

The measuring cycle time can be changed with the help of the Command Object (index 0xFB00:01). The command is started by writing subindex 1 (request). Write access is disabled until the current command is completed.

0x0022    Measuring interval 4 periods
0x0122    Measuring interval 5 periods
0x0222    Measuring interval 10 periods (default)
0x0322    Measuring interval 16 periods
0x0422    Measuring interval 32 periods

Sample

In order to change the measuring interval to 16 periods, the value 0322_hex must be entered in Index 0xFB00:01.

The adoption of the new measuring cycle time can take up to 10 seconds. The value is not stored in the EEPROM; following a voltage reset of the terminal a measuring cycle time of 10 periods is set again. In order to avoid this, the value can be set with the help of a startup parameter.