Leica GKL221 User Manual page 45

Function check
2-3
Only use the vehicle adapter for power supply from a vehicle. If the power supply comes from other
sources, such as transformers, malfunctions could occur. Refer to section "5 Technical Data" for
information on voltage and rated power.
Check older vehicles and makes sure that the + pole is on the middle contact surface of the cigarette
lighter socket. Should the polarity be wrong, then the fuse in the charger or the fuse in the vehicle
adapter has to be changed. The fuse in the charger has to be changed by an authorised Leica
Geosystems service workshop. The fuse in the vehicle adapter has to be changed as described in the
manual of the adapter.
After the adapter is connected to the mains or to the vehicle's battery circuit, the red, yellow and green
function indicators light up once, the capacity and error indicators light up red and green. This is a
function check.
If no battery was inserted, then only the green function indicator will light up.
If the status indicator and the three capacity and error indicators light up and remain red, then a defect
was detected. Refer to section "2.6 Indicators" for additional information.
GKL221 Operation