Alpha Technologies Underground Battery Vault - Manual (Page 13)

031-040-B0-002 Rev. B
13
2. INSTALLATION
2.3.1 Charge Management Technology (CMT)
The AlphaGuard monitors and protects the batteries by spreading the charge voltage equally across
all the batteries in a string, ensuring that every battery in the string, whether old or new, is properly
charged. With an ideal voltage always across each battery, life and runtime are optimized. Individual
batteries in a string can be replaced as they fail, allowing batteries to be left in service longer.
The AlphaGuard unit installs directly on top of one of the batteries in the string. A wire harness
connects the AlphaGuard to each of the batteries in the string. Both 36V (3 battery) and 48V (4
battery) versions are available. One AlphaGuard is required per battery string. The AlphaGuard
performs electrical compensation for differences in individual batteries in the string. The unit can be
confi gured to pass measurements from the battery string to a status monitoring device (EDSM card,
DOCSIS transponder, etc.) via an interface cable.
AlphaGuard Charge Management System
Part Number Model Description
012-306-30 AG-CMT-3SC-P-C
AlphaGuard Charge Management SC, CMT-3SC-P-C 36VDC
Potted with 6ft sense wires
012-306-32 AG-CMT-3SC-P
AlphaGuard Charge Management SC, CMT-3SC-P 36VDC
Potted without sense wires
012-306-31 AG-CMT-4SC-P-C
AlphaGuard Charge Management SC, CMT-4SC-P-C 48VDC
Potted with 6ft sense wires
012-306-33 AG-CMT-4SC-P
AlphaGuard Charge Management SC, CMT-4SC-P 48VDC
Potted without sense wires
012-306-20 AG-CMT-3SC
AlphaGuard Charge Management SC, CMT-3SC-P-C 36VDC
With 6ft sense wires
012-306-21 AG-CMT-4SC
AlphaGuard Charge Management SC, CMT-3SC-P-C 48VDC
With 6ft sense wires
Battery Monitoring Cables
Part Number Model Description
875-510-20 AG-EDSM-S9-Cable 36/48V Voltage Sense Cable, Single String, 9’
875-510-21 AG-EDSM-D9-Cable 36/48V Voltage Sense Cable, Dual String, 9’
875-510-23 AG-EDSM-S35-Cable 36/48V Voltage Sense Cable, Single String, 35’
875-510-22 AG-EDSM-D35-Cable 36/48V Voltage Sense Cable, Dual String, 35’
2.3 Battery Connection, continued