Operating Instructions - Sanyo MBR-1404G Instruction Manual

OPERATING INSTRUCTIONS

Temperature display
The unit is set at the factory to obtain the proper temperature automatically (4
temperature alarm is preset at 6
Table 1. Temperature display
Operation
1 Plug-in, Power ON
2 Press temp. display key
3 Press temp. display key
4 Press temp. display key
5 Repeat from 2
Note: The displayed temperature represents the temperature sensed by a thermal sensor attached to
the monitor bottles mounted to the upper and lower portion of the chamber. The displayed temperature
may not always be at 4
temperatures within the chamber.
Defrost cycles
There is no need for routine defrosting of the unit as this occurs automatically as follows:
1. Cycle defrost
To keep the temperature stable inside the chamber, the refrigeration compressor is cycled on and off.
During "off " periods any frost which has accumulated on the evaporator is melted by energizing a defrost
heater. This will not have any discernible effect on the chamber temperature.
2. Forced defrost
When the ambient humidity is high, or a large amount of damp product is being stored inside the chamber,
there is a possibility that cycle defrost may not be enough to remove all of the frost on the evaporator. In
this case, a forced defrost cycle can be initiated. When the unit is operating under a forced defrost cycle,
the current chamber temperature and dF is displayed alternately on the digital temperature display.
Once the forced defrost cycle is complete, normal operation resumes. The chamber temperature of
blood bag (400 ml) rises about 1 to 2
o
C. The low temperature alarm is preset at 2
Key
operated
Average monitor bottle
temperature
Upper monitor bottle
UPPER
LOWER
temperature
Lower monitor bottle
UPPER
LOWER
temperature
Average monitor bottle
UPPER
LOWER
temperature
o
C. The chamber probes are representative and high and low average
o
C during the defrosting.
17
o
C±1.5
o
C.
●: Lamp ON ○: Lamp OFF
Display
●UPPER
Average temperature
●LOWER
●UPPER
Upper temperature
○LOWER
○UPPER
Lower temperature
●LOWER
●UPPER
Average temperature
●LOWER
o
C). The high
Display mode