Troubleshooting - Sanyo MCO-19AIC(UV) Instruction Manual

TROUBLESHOOTING

If the Incubator does not seem to be working properly, check the following items before calling for service.
Symptom
The Incubator does not
operate at all.
The key is not working.
An alarm has occurred.
The chamber temperature
does not match the set value.
The CO gas concentration
2
does not match the set value.
The chamber temperature
does not rise.
A large quantity of CO
being consumed.
Is the Incubator plugged in?
Is there a power outage, or has a circuit breaker interrupted the
power?
Is the key lock function turned OFF?
When starting operation:
Does the chamber temperature match the set value?
Does the CO
2
(1) Is the secondary pressure for the CO
specified value of 0.03 MPaG (0.3 kgf/cm
(2) Is the CO gas supply pipe properly connected?
2
During operation:
Is the upper limit alarm temperature set at least 1 C higher than the
chamber set temperature?
Has the temperature setting been changed? Has the door been left
open for a long time? Has a low-temperature object been placed in the
chamber? If any of these is the case, the alarm will be automatically
cleared if you wait.
Has the CO gas supply pipe come loose, or is there a gas leak?
2
Has the CO gas concentration setting been changed?
2
Is the gas cylinder empty? Check the primary pressure of the gas
cylinder once a week. (When the primary pressure is 3.8 MPa (38
2
kgf/cm G) or lower, it is a sign that there is little gas remaining.
Replace the cylinder soon.)
Is the ambient temperature less than 5 C different from the set value
for the chamber temperature?
Is the outer door closed with the inner door left open?
Is the secondary pressure for the CO
specified value of 0.03 MPaG (0.3 kgf/cm
Is the CO gas supply pipe blocked?
2
Is there enough water in the humidifying pan? (Be sure to use sterile
distilled water.)
Are the doors being frequently opened and closed?
gas is
2
Check whether gas is leaking from connectors due to deterioration of
the CO gas supply pipe, or whether there may be any pinhole leaks.
2
The CO gas supply pipe is a replaceable part, and it is recommended
2
that it be replaced once a year.
Is the packing seal for the inner door defective?
Is the access hole open?
Items to check and countermeasures
gas concentration in the chamber match the set value?
2
2
141
gas pressure regulator at the
2
G)?
gas pressure regulator at the
2
G)?
50