E-Mon E-PS-E-RTU-N - Manual (Page 113)

Chapter 6 Device Control and Upgrading Upgrading Device Firmware
PowerSmart+ Power Quality Meter 113
5. You are asked for the password regardless of the password
protection setting in your meter. Type the meter password, and
click OK. If you did not change the password in the meter, enter
the default password 0.
6. Observe the PowerSmart+ PQM Display screen with "Flash Loader
Running…" notification as below
7. Wait until Power Software completes upgrading your device. It
takes about 3-4 minutes at 115,200 bps to download the file to
the meter.
8. After upgrading firmware is completed, the meter restarts, so
communications can be temporarily lost. You may need to wait a
short duration until Power Software restores a connection with
your device.