System Installation Considerations
4200-088
6-2
Revision 1.03
UXBMs and UXSMs
The UXBM and UXSMs are intended to be mounted as close as possible to the battery string being
monitored. The cable lengths for the UXBMs have been prefabricated at the factory to simplify
installation. In certain instances, some installations will require extending some leads but it is best to
position the UXBMs to limit this process.
6.4.
Wire Lengths
All sense lead harnesses come pre–fabricated and in most cases should not require additional lengths. In
fact, external sensors like ambient temperature and current transducers may need to be shortened for a
cleaner installation. In the event where UXBM sense leads need to be extended, do not extend these
longer than twenty feet. If longer sense leads are required contact Albér for further assistance.
All modules within the system are connected together using a fiber optic cable for communications. Any
one given connection cannot exceed 250 feet (≈76 meters).
6.5.
Isolate the Battery String
CAUTION:
De-energize and isolate the battery string. Never attempt installation on a battery
string that is in service. Before performing any work, always isolate the battery string by turning off the
charging circuits and opening the circuit breakers.
6.6.
Identify Cell/Monobloc Number 1
When referring to any material in this installation guide and reference is made to an actual cell number,
always consider Number 1 as the most positive end of the battery with respect to the battery charger.
As the cells increment toward the negative end of the string, increment the cell numbers as well.
