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PM8000 displays an incorrect Vln avg value when setting the Volts Mode to Single
Issue
When the PM8000 volts mode is set to Single, it will display an incorrect value for Vln avg when monitoring a 2 wire single-phase system.

Product Line
PM8000 series

Environment
Meter's display

Cause
When the device is set to a Volts Mode of Single, Vln avg is the average of Vln a and Vln b. For a 2 wire single-phase system, Vln a is the expected value, and Vln b is equal to 0. Vln avg is then half of the expected value.
Vln avg = (Vln a + Vln b) / 2 = (Vln a + 0) / 2 = (Vln a) / 2

Resolution
The Vln avg value can be relinked to Vln a using ION Setup. ION Setup can be downloaded here: https://www.se.com/ww/en/download/document/ION_Setup_Latest_Release/​

Once the device is connected in ION Setup, perform the following:
  1. Enter into Advanced Setup
    1. Right-click on the meter and select Properties...
    2. Navigate to the Tools tab
    3. Select Show Advanced ION Setup
    4. Press OK
  2. Double-click Data Mapping Meas Modules
  3. Double-click Data Mapping Meas 1
  4. Relink the Vln avg input to \Power Meter Modules\MU Power Meter\MU Vln a
Note: The Vln avg input cannot be linked to \Power Meter Modules\Power Meter\Vln a as multiple inputs cannot be linked to the same value, and Vln a is already linked to the input Vln a in the Data Mapping Meas Module. Therefore, the MU Power Meter module must be used. If you are using PTs and require the MU Vln a be scaled, then the appropriate scaling would need to implemented using an Arithmetic Module.
  1. Click on Send to save the change

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