Cascade Sciences CVO-10, Руководство по установке и эксплуатации

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OPERATION
F
LASHING
T
EMPERATURE
The displayed temperature begins flashing when the chamber pressure rises by 3inHg or more or
when the chamber door is opened. This indicates the display is showing the last measured
vacuum
temperature of the chamber shelving and not the current air temperature of the backfilled chamber.
There can be a difference of up to +3°F temperature between the air and shelving temperatures
during the first minutes after the chamber has backfilled. Because the temperature probe is
surrounded by atmosphere in a backfilled chamber, the display would show the air temperature and
not the shelving temperature if not overridden.
The heat held by the newly introduced atmosphere impacts product or samples much less than the
temperature of the shelving. In other words, most heating of items on the shelves will initially be
driven by the shelving temperature and not the atmosphere—the shelving having considerably more
mass to hold heat with than the new chamber atmosphere.
The temperature should stop flashing after 2 minutes and gradually adjust to showing the air
temperature of the chamber as it equalizes with the shelving. The controller may keep the
temperature display locked and flashing for up to 10 minutes if the difference remains greater than
1.5°F.
A
UTO
H
EATING
P
AUSE
The oven automatically pauses heating if the chamber door is left open longer than 10 minutes. This
is done to save power and prevent a significant heat spike when the door is closed and the chamber
evacuated.
D
ATA
P
ORT
The USB data port, located on the back of the oven, outputs the oven temperature and vacuum level
once per minute as a digital line of text. Example: 105F 23 inHg
To record this outputted data, connect a computer to the data port. The oven does not store the
data.
Required Software:
•
Viewing and logging this output requires a terminal emulator program running on the
connected computer, such as the open source emulator, Tera Term (BSD license).