Recalibration software is available here and software for updating the meter firmware is here.

For updating the firmware:

Ensure that the meter is turned off.

Start the program and open the .hex update file.

Set up the baud rate to 19200.

Copy and paste the correct comm port name from the list of avilable comm ports.

Turn on the meter. The program will load to file to the meter then close automatically.

NOTE: The program should never be started with the meter on!!!!!