Guralp Systems CMG-DCM build <10,000 - Manual (Page 26)

CMG-EAM (Platinum Firmware)
26 Issue C
Note: There is no way to recover a lost password and it is very
awkward (although not impossible) to regain access to a system
without a password. Despite much conventional wisdom, you
may be safer writing the password down and storing it in a
physically secure place rather than risk forgetting it.
If you do lose your password, please contact Güralp Systems'
technical support team for advice.