Life of the Internal Battery (Year)
10 |
|
|
|
5 |
|
|
|
4 |
|
|
|
3 |
|
|
|
2 |
|
|
|
1 |
|
|
|
0.5 |
|
|
|
10 | 20 | 30 | 40 |
Ambient Temperatures( ℃)
Allowable Shelf Life of the Internal Battery (Month)
50
40
30
20
10
5
２
10 20 30 40 Ambient Temperatures( ℃)
Figure 9.1 Life of the Internal Battery | Figure 9.2 Allowable Shelf Life of the Internal |
| Battery |
9.3How to Charge the Internal Battery
The battery is charged while the power is "ON," regardless of the operation state of the STP pump.
After a power failure, charge the battery for approx. 12 times the BATTERY BACKUP time. For example, when the BATTERY BACKUP time is 6 minutes, it takes approx. 75 minutes to charge the battery.
If a power failure occurs 2 times within 90 minutes, charge the battery for more than 90 minutes before starting to operate the STP pump.
