Alpha Technologies AlphaCell HP - Manual (Page 15)

15 745-680-C5-002, Rev. A
3.0 Periodic Maintenance Tasks and Schedule
The following tasks are to be performed on a monthly and quarterly schedule.
The following maintenance procedure requires a fully functional status monitoring system capable of
remotely measuring and recording the following data on a periodic basis:
• Battery Temperature
• Individual Battery Voltage
• Total Battery String Voltage
Please note: If status monitoring is not available these checks need to be made during the quarterly
onsite visit and any batteries not meeting the minimum requirement must be addressed at such time.
Procedure
1. If any individual battery voltage varies more than 0.5V above or below the average for the
string then a site visit is required.
Example V1 = 13V, V2 = 13V, V3=14V
Average voltage = 13.3V
If V3 greater than average by 0.5V, then a site visit is required
2. If the RTS temperature is greater than 10 degrees C above the current regional ambient
temperature then a site visit is required.
3. Prioritize site visits based on highest RTS temperatures and battery voltages
4. Visit the site within 30 days and remedy the problem by replacing the bad battery or
batteries and reset quarterly maintenance.
Fig. 5, Flow Chart for Monthly Remote Status Monitoring
3.1 Monthly Remote Status Monitoring
Review Status
Monitoring Data
Battery Voltage
>0.5V Above/Below
String Average
RTS
Temperature >10°C
above Ambient
Monitor as per PM
Program
Perform
Quarterly PM
No No
Yes
Yes