Support Topic: Meter data

HAN2X energy values are missing while other values are present

Many AMS meters send accumulated energy data only once per hour, even though power and other values update more frequently.

  1. Leave HAN2X connected across at least one full-hour boundary.
  2. Confirm that other live meter values continue to update.
  3. If energy values are still missing after more than one hour, send a debug report from the HAN2X Help page. The device report contains information that is not available to the public WordPress site.

HAN2X values are missing from one or more phases

Compare the HAN2X values with the phase information available directly on the AMS meter display.

  • A single-phase meter normally reports values only for L1.
  • Some installations or meter configurations do not monitor every phase.
  • HAN2X cannot create phase values that the meter does not transmit.

If the meter display shows a phase that is consistently missing from HAN2X, send a debug report from the HAN2X Help page and include the meter manufacturer and model.

HAN2X energy, power, or current values are lower than expected

If HAN2X agrees with the AMS meter display but the values are lower than expected for the installation, the meter may be measuring only a fraction of the primary current through current transformers.

  1. Ask the utility or installer for the current-transformer ratio or scale factor used for the meter.
  2. Enter the factor in the HAN2X Settings page.
  3. The same factor is available through Modbus registers 40049–40050. Check the current HAN2X manual for the datatype and write procedure before changing it over Modbus.

Do not guess the factor. An incorrect value makes all scaled energy, power, and current readings misleading.

HAN2X HAN LED is off and no meter values appear

  1. Ask the utility or power company whether communication on the meter’s HAN port is enabled. It is not always enabled by default and may be disabled after a change of building owner.
  2. Check that the HAN cable is fully inserted at both the meter and HAN2X.
  3. Compare the meter information shown on the HAN2X Home page with the values available on the meter display.

If the utility confirms that the HAN port is active and the HAN LED remains off, include the meter manufacturer and model when contacting Varibits support.