Sanyo MDF-137 Service Manual page 18

Power failure alarm :
7. Auto Return
If there are not any key operations for 90 seconds in setting mode, Key Lock mode and Function
mode, the value would not be memorized and automatically returns to chamber temperature
display.
8. Alarm resume time (Ring Back)
Buzzer sounds again after alarm resume time elapses even if someone intends to stop buzzer
sounding by pressing BUZZER key during alarm condition.
Alarm resume time is changeable in F25.
9. Temperature in temp. sensor
st
The 1 decimal point of the temperature in temp. sensor is displayed in F12.
Ex) -30.2 => Displayed as '30.2'
10. Battery accumulation period
Battery accumulation period is displayed in F03.
Ex) 2 years and 6 months => Displayed as '02.5'
When battery accumulation period is '02.8', 'F-1' and chamber temperature are displayed
alternately.
How to reset battery accumulation period:
Input '409' in F06 and press SET key to clear accumulation period to '00.0'.
'F-1' is disappeared on the display.
11. ROM version
Current ROM version is displayed in F30.
Ex) Ver. 1.00 => Displayed as '1.00'
When power switch is off position or power is not supplied for 3 seconds
with battery switch ON, ALARM lamp blinks, buzzer sounds intermittently
and remote alarm activates.
When the power is retrieved within 3 seconds since the power failed, the
apparatus restarts with initial operation.
Remote alarm turns off.
Press BUZZER key to stop buzzer sounding.
Remote alarm keeps activating.
Remote alarm keeps activating until chamber temperature is stabled after
the power retrieves from power failure.
If you press BUZZER key during power failure, you can check chamber
temperature for 5 seconds.
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