Phcbi MBR-1405GR, Руководство по эксплуатации

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DISPLAY OF CHAMBER TEMPERATURE
The chamber temperature is set to 4
o C±1.5 o C at the factory. The temperature on the temperature
display shows the temperature of the sensor for temperature display attached to the monitor bottle (upper
and lower).
By pressing the temperature display changeover key, the displayed temperature is changed in the
following sequence: upper temperature, lower temperature, average of upper and lower temperature.
Table 1 shows the procedure for changeover.
<Important>
The upper temperature represents the temperature of the upper monitor bottle and the lower temperature
represents the temperature of the lower monitor bottle. Accordingly, the displayed temperature is not
always 4
o C±1.5 o C. This is not a malfunction.
Table 1. Changeover of temperature display : Lamp ON : Lamp OFF
Operation Key operated Indication after operation Display mode
1
Plug-in the power supply
plug and turn on the
power switch.
-----
Average temperature
is displayed. UPPER
LOWER
Average
temperature
2
Press the temperature
display changeover key. Upper temperature is
displayed. UPPER
LOWER
Upper
temperature
3
Press the temperature
display changeover key. Lower temperature is
displayed. UPPER
LOWER
Lower
temperature
4
Press the temperature
display changeover key. Average temperature
is displayed. UPPER
LOWER
Average
temperature
5 Repeat from step 2.
DEFROSTING OF EVAPORATOR
The following two defrosting methods are adopted in this unit. Both of them are controlled automatically.

Cycle defrost
To keep the chamber temperature stable, the compressor is turned on and off in cycles. During the “off”
period any frost which has accumulated on the evaporator is melted by a defrosting heater. This will not
have any significant effect on the chamber temperature.

Forced defrost
When the ambient humidity is high, or when a large number of damp items are being stored in the
chamber, there is a possibility that the cycle defrost may not be sufficient to remove all of the frost on the
evaporator. In this case, a forced defrost can be initiated.
When the unit is operating under the forced defrost, the current chamber temperature and “dF” are
displayed alternately on the temperature display.
Once the forced defrost is completed, the normal operation will resume. The temperature of blood bags
(400 mL) in the chamber will rise by approximately 1
o
C to 2
o
C during the forced defrost.
UPPER
LOWER
UPPER
LOWER
UPPER
LOWER