HRB1684301-17

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 discontinued.

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 that you have your meter’s firmware version, model, and serial number information available.

QR Code is a registered trademark of DENSO WAVE INCORPORATED in Japan and other countries.

Was this helpful?