Leica GR10 Operational Manual page 274

Operational Manual (Online Help)
Power failure recovery
GR/GM10
Reboot after power failure
External power source
protection
Power up voltage
Power down voltage
272
Uses trickle charging to optimise the life span of the battery. This mode is
ideal for permanent reference station installations where the internal battery
is used as a temporary backup supply during periods when the primary
external supply fails. Note that the charge will not reach 100%.
•
Campaign mode
Campaign mode uses cycle charging to optimise battery charge for field
campaigns. This mode is ideal if the battery is regularly used as the primary
power supply.
Internal battery charging is only initiated when the power
received from the external power supply is at least 2V above
battery voltage.
Description
Select the power failure recovery setting.
•
Always
After a power failure, the system will immediately start up once power is
available again, even if there is very low power available. This should only
be selected when the system is powered by an external main AC/DC power
source. This option is not recommended for systems powered by batteries,
as it could affect a deep discharge and even destruction of the battery.
•
Sudden loss only
After a power failure, the system only starts up again if an abrupt power
failure occurred. For example, after a short circuit or unplugging the batteries
by mistake. The system will not power up automatically following a slow loss
of power such as an external battery running flat.
Description
Enter the minimum voltage level at which the receiver will automatically power up. If
power comes back after a power failure but the defined power up voltage level is not
reached, the receiver will not reboot. This can prevent deep discharge of external
batteries used to power the receiver. The minimum power up voltage is 11.3V.
Enter the minimum voltage level at which the receiver will automatically power down.
Even if the external power source could continue to power the receiver, the receiver
will power down to protect the external power source, once the power down voltage
is reached. The minimum power down voltage is 10.5V.
The power down voltage must always be at least 0.8V below the
power up voltage to prevent constant reboot of the receiver.
The receiver only starts up when the external power supply voltage reaches the user-