User's Manual

16
Battery Fuel gauge. The device implements a fuel gauge functionality for lead-acid, LiFePO
4
and other
lithium batteries. When the device is first powered on, the fuel gauge will display “-----” meaning that it is not
synchronized with the battery. A full charge is required to bring the SOC in sync with the battery. By tapping on
the Battery tab for longer than one second a few options relating to the fuel gauge will be shown. The user can
manually force a battery synchronization or retrieve the battery statistics. Do keep in mind that forcing the
battery synchronization can lead to an inaccurate battery state-of-charge indication until the first full charge
event occurs.
Password lock. The device can be locked using a master / user password scheme. Various functions
become unavailable when they are password locked. When the user attempts to use one of the locked functions,
the app will ask for the required password (user or master). If the master password is entered instead of the
user password all the functions become unlocked. The user password will not be accepted instead of the master
password. Once a correct password has been entered the device will unlock only the set of functions that apply
to that password. The user password will unlock only a sub-set of functions while the master password will
unlock all functions. If the master password is not set, the user password unlocks all the functions of the device.
Once a set of functions have been unlocked, they will stay in this state until the device is disconnected, after
which they will revert to the locked state (if any password has been set). This protection scheme allows the
device to still be operated by a user while allowing only the manufacturer or technician (the master) to make
configuration changes that may affect the proper or safe functioning of the system. The password lock function
can be accessed from the About page.
The next table describes which set of functions are affected by the master / user passwords.
Function
Master Password Required
User Password Required
View monitored data
Save configuration
YES
YES
Device rename
YES
YES
Reset to factory defaults
YES
YES
Zero current offset
YES
YES
Calibrate current
YES
YES
Reset peak current
YES
Reset power meter
YES
Reset charge meter
YES
Turn power ON/OFF
YES
Force fuel gauge sync.
YES
YES
Remove master password
YES
Remove user password
YES
Timers (add / edit / delete)
YES
Set time
YES
Firmware upgrade
YES
YES