t on
t on
t off
1 sec.
t on
t on
1 sec.
Item Test Item Specifications Remarks.
BUZZER SOUND
BACKUP IN CASE OF A
POWER FAILURE
(EXCEPT OSLO, SRE
701,SRE 702,SRE 703)
Backup time
Backup life
The following explains the buzzers.
Buzzer A, ton = 100 ms
Buzzer B, ton = 100 ms, toff = 100 ms
Buzzer C, ton = 600 ms
This function stores the current time, timer setting, temperature setting, backup in case
of an error, and refueling count time. In the other situations, the function is cancelled.
Ensured backup time should be 10 min.
1. Average temperature of Main Circuit Board substrate used for one decade: 40 ˚C
(temperature near the backup capacitor).
2. Availability of Main Circuit Board's substrate for one decade: 25 %
3. Temperature range when using Main Circuit Board substrate: 25 to 55 ˚C
(temperature near the Backup Capacitor)
If the conditions mentioned above are met, the life of the backup capacitor will be
ensured as follows:
Backup time: More than 10 min.
Life: More than one decade
3.3.10
3.3.11
3.3.11-1
3.3.11-2
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