Sanyo MCO-5M - Page 16

13
5. Overheat protection temperature check mode
Setting range :
35°C ∼ 51°C
Setting method : Press SET key for four times to display the overheat protection
temperature on PV display and “HI” on CO
2
display.
Press SET key again to revert to PV display.
6. Alarm, safety mode and self diagnosis
In sensors malfunctions and CO
2
/O
2
control malfunctions, an error code and PV is
displayed alternately.
Note) The remote alarm is controlled in every a minute.
That’s why the remote alarm control is delayed 4~5 minutes after an error is displayed.
<Error code>
E01: CO
2
is not supplied
E02: O
2
/N
2
is not supplied
E03: CO
2
connection is faulty
E04: O
2
/N
2
connection is faulty
E05: Temp. sensor is open circuit
E06: Temp. sensor is short circuit
E09: Ambient temperature sensor is open circuit
E10: Ambient temperature sensor is short circuit
E11: CO
2
sensor output voltage is abnormal
E12: Main heater is abnormal
E13: Bottom heater is abnormal
E14: Door heater is abnormal
E16: SSR for each heater is open circuit
E18: UV lamp malfunction (a lamp blown out, a glow lamp unfitted and so on)
E19: O
2
sensor is abnormal
The description of error codes are follow:
E01 : CO
2
cylinder is not supplied
When the CO
2
density does not go up 0.2%* or more in 1 minute even though the
valve is opened, “E01” and “Internal temperature“ are displayed alternately, and
buzzer sounds intermittently.
The definite action that CO
2
cylinder is empty, repeats twice, therefore it takes
approximately 2minutes to display an error after the cylinder would be emptied.
When O
2
/N
2
is supplied, E01 is cancelled.
Ú If CO
2
piping is crushed, “E01” is also displayed.
* 0.1 % or more when CO
2
is set at 3 % or lower.
E02 : O
2
/N
2
cylinder is not supplied
When the O
2
/N
2
density does not go up 0.2% or more in 1 minute even though the
O
2
/N
2
valve is opened, “E02” and “Internal temperature “ are displayed alternately,
and buzzer sounds intermittently.
The definite action that O
2
/N
2
cylinder is empty, repeats twice, therefore it takes
approximately 2minutes to display an error after the cylinder would be emptied.
ÚIf O
2
/N
2
piping is crushed, “E02” is also displayed.
E03 : CO
2
connection is faulty
When CO
2
increases 1.0% or more in a minute even though CO
2
valve is turned
off, “E03” and “Internal temperature” are displayed alternately, and buzzer sounds
intermittently. CO
2
is faulty connected to O
2
/N
2
port. When CO
2
is set in 0%, CO
2
error is cancelled and “E03” is not displayed.
Diagnosis would not be done for 5 minutes after the door shut to prevent diagnosis
being done wrongly.