Mitsubishi Electric Q06HCPU - Appendix 4.3 SRAM Card Battery Life

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Appendix 4.3 SRAM card battery life
SRAM card
Power-on
time ratio
*1
Battery life
*3
Guaranteed value
(MIN)
Actual service value
(Reference value)
*4
After SM52
turned on
(Backup power time
after an alarm)
Q2MEM-1MBS
Manufacturing control
number "A"
*2
0%
690 hours
0.07 years
6,336 hours
0.72 years
8 hours
100%
11,784 hours
1.34 years
13,872 hours
1.58 years
Q2MEM-1MBS
Manufacturing control
number "B"
*2
or
"B
"
*2
0%
2,400 hours
0.27 years
23,660 hours
2.7 years
20 hours
30%
2,880 hours
0.32 years
31,540 hours
3.6 years
50%
4,320 hours
0.49 years
39,420 hours
4.5 years
70%
6,480 hours
0.73 years
43,800 hours
5.0 years
100%
43,800 hours
5.0 years
50 hours
Q2MEM-2MBS
0%
2,400 hours
0.27 years
23,660 hours
2.7 years
20 hours
30%
2,880 hours
0.32 years
31,540 hours
3.6 years
50%
4,320 hours
0.49 years
39,420 hours
4.5 years
70%
6,480 hours
0.73 years
43,800 hours
5.0 years
100%
43,800 hours
5.0 years
50 hours
Q3MEM-4MBS
0%
43,800 hours
5.0 years
43,800 hours
5.0 years
50 hours
30%
50%
70%
100%
Q3MEM-8MBS
0%
36,300 hours
4.1 years
43,800 hours
5.0 years
50 hours
30%
43,800 hours
5.0 years
50%
70%
100%

B or later