Issue
Total Harmonic Distortion (THD) is not available in the ION6200 series Power Meters when they are set to Delta or Direct Delta Volts Mode.

Product Line
ION6200 series

Environment
ION6200 meters configured with Volts Mode set to Delta or Direct Delta.

Resolution
ION6200 series Power Meters do support THD functionality with Enhanced Package 2. However, due to limitations in available memory space, this feature is not available when the Volts Mode is set to Delta or Direct Delta.

When the ION6200 meter is used in these Volts Modes, the meter will return '0' for THD values both on the front panel display and through communications with the device.

Recommendation:
If THD values are required in Delta or Direct Delta configurations, it is recommended to use the PM750 or PM800 series meters instead, as these models provide full THD functionality in such configurations.