EAV15107-EN07

LED indicators

Abnormal heartbeat / serial communications LED behavior could mean potential problems with the meter.
Problem Probable causes Possible solutions
LED flash rate does not change when data is sent from the host computer. Communications wiring If using a serial-to-RS-485 converter, trace and check that all wiring from the computer to the meter is properly terminated.
Internal hardware problem Perform a hard reset: turn off control power to the meter, then re-apply power. If the problem persists, contact Technical Support.
Heartbeat / serial communications LED remains lit and does not flash ON and OFF Internal hardware problem Perform a hard reset: turn off control power to the meter, then re-apply power. If the problem persists, contact Technical Support.
Heartbeat / serial communications LED flashes, but the display is blank. Display setup parameters incorrectly set Review display parameter setup.

If the problem is not fixed after troubleshooting, contact Technical Support for help. Make sure you have your meter’s firmware version, model and serial number information available.

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