SATEC PM174 Manual - Manual (Page 110)

Chapter 4 PAS Application Upgrading Device Firmware
110 Series PM174 Powermeters
4. Point to the firmware upgrade file for your meter, click
Open, and then confirm upgrading the meter. You are
asked for the password regardless of the password
protection setting in your meter.
5. Type the meter password, and click OK. If you did not
change the password in the meter, enter the default
password 0.
6. Wait until PAS completes upgrading your device. It takes
about 3-4 minutes at 115,200 bps to download the file to
the meter.
7. After upgrading firmware is completed, the meter restarts.
If the meter is connected to your PC through the modem,
communications can be temporarily lost and you may
need to wait until PAS restores a connection with your
device.
8. You possibly need to restore the previous port settings in
your meter if you changed them.