46
OPERATION MONITOR SYSTEM
This unit has the operation monitor system. It is the function to detect and inform some hard operating
conditions that leaving the unit operating may cause a failure. The table 2 shows the information of the
operation monitor system.
Table 2 Information of the operation monitor system
Information Status
Message
display field
If this status
continues
Remedy
Abnormal
ambient
temperature
When the ambient
temp. is over approx.
35
o
C or lower than
approx. 0
o
C.
Status1:
Ambient Temp Abnormal.
The cooling
performance and/or the
durability of the
refrigerating circuit may
get worse.
Recheck air-conditioning of
installed site.
* The message disappears
when the ambient temp.
returns to within allowable
range. (approx. 0
o
C
～
35
o
C)
Overload
operation
When the chamber
temp. does not reach
the set temp. for
approx. 5 days or
more.
Status3:
Cooling Circuits
Overload.
(1) Do not put a large amount
of contents to cryopreserve at
a time.
(2) Reduce the opening
frequency of the door.
(3) Make sure that there is no
leak around the door or the
inner lid.
(4) Set the chamber temp. to
-80
o
C or higher.
* The message disappears
when the chamber temp.
reaches the set temp. after
resolving the overload
operation by the above
remedy.
Note:
・
The operation monitor system is not the alarm function. Buzzer, remote alarm and safety operation are
not activated.
・
“Status 2” does not exist.
・
When the above remedy results in the following situations, contact our sales representative or agent.
The message does not disappear.
The message is displayed repeatedly.
Other situations.
