Back-Up Cooling Kit - Phcbi MDF-DU302VX Manual Del Usuario

OPTIONAL COMPONENTS

Back-up cooling kit

By installing an optional backup cooling kit MDF-UB7 and a liquid CO
the chamber prevent to rise the chamber temperature for a few hours, even when this unit stops
operation by a power failure and so on.
Contact our sales representative or agent to arrange purchase of the back-up cooling kit.
WARNING
As with any equipment that uses CO
of the equipment. It is important that you assess the work site to endure there is suitable and
sufficient ventilation. If restricted ventilation is suspected, then other methods of ensuring a safe
environment must be considered.
devices.
The injection set temperature of the backup cooling kit can be set by the temperature setting knob [page
12]. Since the control method of injection is ON/OFF type, the actual injection temperature deviates from
the injection set temperature.
Note:
·Set the injection set temperature of the backup cooling kit to 10
Otherwise, continuous injection of liquid CO
·When the injection set temperature of the backup cooling kit is -70
o o
ON: -67 C~-65 C, OFF: -75
The behavior of the backup cooling kit
Backup Backup
power switch display
[Page 12] [Page 13]
ON Switch ON
OFF Switch OFF
• Duration of backup cooling:
MDF-DU302VX:Approx. 13 hours
(ambient temp.; 30
gas, there is a likelihood of oxygen depletion in the vicinity
2
These may include atmosphere monitoring and warning
may reduce the retention time of liquid CO
2
o o
C~-74 C.
Condition of the
backup cooling kit
Ready to inject
Not ready to inject
(Not ready to activate
the backup test switch)
o C, set temp.; -70 o C, no load, liquid CO
cylinder, liquid CO
2
o C higher than the set temperature.
o
C;
Chamber temperature
Less than the injection set
temperature of the backup
cooling kit.
The injection set temperature
of the backup cooling kit or
higher.
Less than the injection set
temperature of the backup
cooling kit.
The injection set temperature
of the backup cooling kit or
higher.
gas cylinder of 30 kg)
2
injection into
2
cylinder.
2
Liquid CO
2
Does not inject
Injects
Does not inject
55